Difference between revisions of "RPi Wheezy raspi-config 2012-06-18"

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m (after exiting the menu)
(Added text on overscan, content improvements elsewhere, and general tidying up from the initial very useful copy of a forum post.)
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==The raspi-config==
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== The raspi-config ==
  
When you start your Pi using the wheezy image The Raspi-config menu appears and has the following entries.
+
When you start your Pi using the wheezy image The raspi-config menu appears and has the following entries.
  
 
  info Information about this tool
 
  info Information about this tool
Line 9: Line 9:
 
  change_pass Change password for ‘pi’ user
 
  change_pass Change password for ‘pi’ user
 
  change_locale Set locale
 
  change_locale Set locale
  change_timezone         Set timezone
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  change_timezone       Set timezone
 
  memory_split Change memory split
 
  memory_split Change memory split
 
  ssh Enable or disable ssh server
 
  ssh Enable or disable ssh server
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  <Ok> <Exit>
 
  <Ok> <Exit>
  
At any point from within any of the menu or  submenu options the Tab key will toggle about the selected entry and the options at the bottom inside angle brackets now
 
  
There is an exception to this and that’s with the change_locale option ignore that exception for now it’s covered later. 
+
== MOVING AROUND THE MENU ==
  
==info                  Information about this tool ==
+
At any point from within any of the menu or submenu options the Tab key will toggle about the selected entry and the options at the bottom inside angle brackets. There is an exception to this and that’s with the change_locale option, ignore that exception for now it’s covered later.
  
 +
Some of the menu entries take quite a while to display.
  
This would be really helpful if it actually explained the options in the menu but that would be a lot to hope for. 
 
  
As it is it helpfully advises you may have difficulties if you have heavily customised your installation but as this is probably the first thing a rookie is going to see the likelihood of a heavily customised installation. 
+
== WHAT RASPI-CONFIG DOES ==
  
What would be useful would be instructions on running this from command line combined with advice on writing these (from the command line) instructions down.
+
Some entries modify the file /boot/config.txt This file, out of the box, contains a number of commented out configuration entries; raspi-config adds entries at the end of this file. You can see what raspi-config has done to the file by viewing it on the Pi using Leafpad, and if you really mess things up you can edit the file from the SD card using Notepad on a windows PC. More information on editing config.txt here??
  
Also it would be useful advice that it will not be difficult to re-image and advice that killing the install may require a re-image.
+
Other entries modify Linux configuration files.
  
Killing the power by pulling the micro USB plug will switch off but do this too often and the socket will start to wear out.
 
  
I use a USB A to micro USB lead and connect this via one of my PC USB ports or one of those nice mains adaptors (Plug with a USB port) used for charging phones. 
+
== INFO - Information About This Tool ==
  
If anything is going to wear out its at the non (micro USB) Pi end of the cable.
+
This would be really helpful if it actually explained the options in the menu, hopefully at least it will provide a reference to this Wiki page.
  
==expand-rootfs Expand root partition to fill SD card==
+
It helpfully advises you may have difficulties if you have heavily customised your installation but as this is probably the first thing a rookie is going to see the likelihood of a heavily customised installation is small. 
  
This does what it says on the tin so if you have installed wheezy on a 4g card after use this option and after reboot it will use all of the SD card.
+
raspi-config appears automatically at first boot. You can run it at any time after that by typing sudo raspi-config (case sensitive) at the command line or in a terminal window. The sudo (do as superuser) is necessary because you will be changing files that you as user pi do not own, its Debian's way of providing a root login.
  
==overscan Change overscan==
+
The lovely thing about the Pi is that if you mess up it will not be difficult to re-image; killing the install may require a re-image (check this). 
  
This is the worst because there’s no information on overscan what it is what it does and I am really looking for some help on expanding this one. 
 
  
When you fire it up you get the unhelpful
+
== EXPAND-ROOTFS - Expand Root Partition to Fill SD Card ==
 +
 
 +
This does what it says on the tin so if you have installed Wheezy on a 4GB or greater card use this option and AFTER REBOOT it will use all of the SD card. The Wheezy image takes nearly 2GB so if you are going to install additional software or large files its worth doing, however you don't need to do it on first boot. The downside to using all the card is that it takes much longer to backup the image.
 +
 
 +
 
 +
== OVERSCAN - Change Overscan ==
  
 
  What would you like to do with overscan
 
  What would you like to do with overscan
 
  <Disable>                      <Enable>
 
  <Disable>                      <Enable>
  
After experimenting with changing the command line font size to make the command line stuff easier to read.
+
Any changes will take effect after a reboot. If you change a setting and end up losing the left sie of the screen you can easilty edit /boot/config.txt on a PC to undo the changes.
 +
 
 +
Televisions do not usually display the whole of the picture, they Overscan and crop of a few percent of the image. This is to hide the data signals such as teletext which use outer lines of the picture. However, computers including the Pi need to use all the lines so often the image displayed by computers on TV's is sometimes cropped.
 +
 
 +
To avoid losing the critical left column at first boot the clever Pi people have deliberately enabled Overscan and used negative overscan to make the displayed image smaller, and to play safe much smaller. This means, depending on your monitor/TV there may be black borders around the picture, LXDE will show the wrong resolution in its display information, and the display may be a bit fuzzy.
  
On reboot the text on the screen was shifted left and down loosing me the start of the line and half of the current line off of the bottom of the screen however after re-running raspi-config using
+
On some displays, particularly monitors, just disabling Overscan will make the picture fill the whole screen and correct the resolution. For other displays it may be necessary to fiddle with Overscan values, more information here????.
 +
  
sudo raspi-config
 
  
note it's case sensitive (don't use capital letters)
+
== CONFIGURE-KEYBOARD - Set keyboard layout ==
I switched on overscan and then rebooted which suggests the overscan is screen alignment related.
+
  
==configure-keyboard Set keyboard layout==
 
 
This is the setting for using different attached keyboards that is brands of keyboards first followed by other choices to set up nationality of keyboards etc.   
 
This is the setting for using different attached keyboards that is brands of keyboards first followed by other choices to set up nationality of keyboards etc.   
  
The first list will probably fall to one of the generic 105 key keyboards but it’s probably not a big deal if you cant find yours on the list have fun remember you can always re-image or if your really stuck go to a supermarket and pick up a generic 105 USB keyboard I got logitech one for six quid.
+
The first list will probably fall to one of the generic 105 key keyboards but it’s probably not a big deal if you cant find yours on the list have fun remember you can always re-image or if your really stuck.
  
The next screen regards keyboard layout  If your not using the first choice of English UK select other and you will be faced with a long list of other national keyboards.  Funnily enough this list includes English UK.   
+
The next screen regards keyboard layout. If you are  not using the first choice of English UK select Other and you will be faced with a long list of other national keyboards.  Funnily enough this list includes English UK.   
  
 
Next screen is actually quite well documented on the screen  your probably going to run with one of the top two choices these are.   
 
Next screen is actually quite well documented on the screen  your probably going to run with one of the top two choices these are.   
Line 77: Line 81:
 
No compose key
 
No compose key
  
The next screen is a useful one and the on screen documentation is actually quite clear provided you know what is meant by “X server”
+
The next screen is a useful one and the on screen documentation is actually quite clear provided you know what is meant by “X server” so here’s an outline:
  
So here’s an outline when you have finished your install the last line of the startup will tell you that you can run startx.  Startx is the command to run the windows (like) screen where you use a mouse to select options.   
+
When you have finished your install the last line of the startup will tell you that you can run startx.  Startx is the command to run the windows (like) screen where you use a mouse to select options.   
  
This is the X server and to get back to command line (that’s all the typed stuff) you can have [Ctrl][Alt][Backspace] all pressed at the same time to shut down this X server screen and you can always restart it by typing “startx”  Always handy if you have a flaky mouse or are using a wireless mouse that eats batteries.   
+
This is the X server and to get back to command line (that’s all the typed stuff) you can have [Ctrl][Alt][Backspace] all pressed at the same time to shut down this X server screen; you can always restart it by typing “startx”. Always handy if you have a flaky mouse or are using a wireless mouse that eats batteries.   
  
Of course this is pointless if you don’t remember the key combination when the time comes
+
Of course this is pointless if you don’t remember the key combination when the time comes!
  
==change_pass Change password for ‘pi’ user==
 
  
The default user for the wheezy install is pi and the normal password is raspberry now until your familiar with the setup it’s probably better to leave this password as it is at least till you are happy changing stuff.  In addition this is probably one of the easiest things to change from a command line. 
 
  
To return to my mantra if you screw this up be prepared to re-image with Linix and Unix forgotten passwords are a killer the Raspberry is one of the simpler systems and lets face it till you know what your looking at, the out of the box solution of pi and raspberry are probably all you will need. 
+
== CHANGE_PASS - Change password for ‘pi’ user ==
  
==change_locale Set locale==
+
The default user for the wheezy install is pi and the normal password is raspberry. Until your familiar with the setup it’s probably better to leave this password as it is at least till you are happy changing stuff.  In addition you can re-run raspi-config to change it at any time.
 +
 
 +
To return to my mantra if you screw this up be prepared to re-image and lose any work you have done or programs installed (you did back up didn't you). with Linux and Unix forgotten passwords are a killer the Raspberry Pi is one of the simpler systems. Let's face it till you know what your looking at, the out of the box solution of pi and raspberry are probably all you will need.
 +
 
 +
 
 +
== CHANGE_LOCALE - Set locale ==
  
 
You can tell this was written by a computer engineer and not a human how about this as an alternative.   
 
You can tell this was written by a computer engineer and not a human how about this as an alternative.   
Line 105: Line 112:
 
en_GB UTF-8 UTF-8
 
en_GB UTF-8 UTF-8
  
English Great Britain and UTF-8 is a code related to showing all of the characters usually need to show English letters on the screen now if you are working in some other language than English then you will probably need to play around with this.   
+
English Great Britain and UTF-8 is a code related to showing all of the characters usually needed to show English letters on the screen. If you are working in some other language than English then you will probably need to play around with this.   
  
 
You can select multiple choices in the list the space bar toggles them on and off (this was the exception I mentioned earlier) and it’s a long list basically if you want to work in more than one language then you will need to make other choices from this list based on the languages you intend to use.   
 
You can select multiple choices in the list the space bar toggles them on and off (this was the exception I mentioned earlier) and it’s a long list basically if you want to work in more than one language then you will need to make other choices from this list based on the languages you intend to use.   
  
If your working in English only the default choice is probably the only one you will need.   
+
If you are working in English only the default choice is probably the only one you will need.   
  
==change_timezone Set timezone==
 
  
This is where you setup your clock now it’s no big issue if it’s wrong it just means the date and time assigned to files you create (automatically when you make) them will be out and its not hard to set this up. 
+
== CHANGE_TIMEZONE - Set timezone ==
  
The set up consists of two layers basically to make your selection easier to find.   
+
This is where you setup your clock now it’s no big issue if it’s wrong it just means the date and time assigned to files you create (automatically when you make them) will be out and its not hard to set this up.   
  
First option screen think continent just to confuse things you have US and America because we all know USA is not part of America.   
+
The set up consists of two layers basically to make your selection easier to find.   
  
Actually the US option just gives you a shorter list all of the US time zones are included in the American list they just made a shorter list under US for all those Good Old Boy American Citizens who don’t know about American places outside of the USA.
+
First option screen think Continent; just to confuse things you have US and America because we all know USA is not part of America. Actually the US option just gives you a shorter list containing the US time zones that are included in the American list; they just made a shorter list under US for all those Good Old Boy American Citizens who don’t know about American places outside of the USA. (flames imminent).
  
 
SystemV relies on you knowing what SystemV is (Think Unix and ignore it for now).   
 
SystemV relies on you knowing what SystemV is (Think Unix and ignore it for now).   
Line 125: Line 131:
 
Most people know where they are in the world for time zone for me it’s Europe then London on the next screen but I’ve always been of the opinion that there should be ropes and lights around the M25 with signs saying “Danger hole in the world Keep Out” but then I’m not from London and the M25 was always the road to hell.   
 
Most people know where they are in the world for time zone for me it’s Europe then London on the next screen but I’ve always been of the opinion that there should be ropes and lights around the M25 with signs saying “Danger hole in the world Keep Out” but then I’m not from London and the M25 was always the road to hell.   
  
==memory_split Change memory split==
+
== MEMORY_SPLIT - Change memory split ==
  
I am prepared to be corrected on this but I am almost certain that this allows you to choose how much of the onboard memory is set aside for the graphics and how much for the on board operation of the main ARM processor.
+
This allows you to choose how much of the RAM memory is set aside for the Broadcom GPU and how much for the operation of the main ARM processor.  
  
Three choices 32meg for graphics 64meg for graphics 128meg for graphics. Now let’s assume your really fresh to writing code, as in never done this before ever.
+
Three choices 32MB for GPU 64MB for GPU 128MB for GPU. First time users should leave it at 64MB for the GPU. There is more information on when to use the different options here????. You can change it with raspi-config and it will take effect at the next reboot.
  
Your not going to be writing really complex Artificial Intelligence type programs and your also unlikely to be running cutting edge real time first person shooter games not yet anyways.   
+
Now let’s assume your really fresh to writing code, as in never done this before ever. Your not going to be writing really complex Artificial Intelligence type programs and your also unlikely to be running cutting edge real time first person shooter games not yet anyways. I like the idea of having 128 meg for graphicsAs a new programmer your not likely to push graphics unless you want to do something with photos or live streaming (Watching Live TV on your Pi).
  
At a later date should you go either of these routes re imaging a new SD card will probably be well within your capabilities till then it’s not really an issue which option you choose.  I like the idea of having 128 meg for graphics.  As a new programmer your not likely to push graphics unless you want to do something with photos or live streaming (Watching Live TV on your Pi).  Remember not only can you re-image but you can run raspi-config again and reassign this value is not set in stone.  
+
   
  
==ssh Enable or disable ssh server==
+
== SSH - Enable or disable ssh server ==
  
I've been told the default setting is on and there's liittle reason for a new user to change this.
+
NOTE: This is broken in Wheezy Beta. If you enter it by mistake press CTRL-C and sudo raspi-config to recover.
  
Now unless you know what ssh is then enable or disable ssh is probably the option that’s going to leave you re-setting you Pi the most. 
+
This change takes effect when???
ssh is the secure shell option ssh will allow you to log into the Pi from another computer on your network using a program like putty. 
+
  
Putty is free and available to download it’s free Open source and runs on both Windows, Linux and there are other things available for Mac’s (I’m not really familiar enough but I believe there’s an option in Xterm).  
+
This option enables or disables the ssh server, a program which sits in the background looking for ssh connections from other computers.  The default setting is on and there's little reason for a new user to change this unless your home network has hostile users or is open to the Internet.
 +
 
 +
ssh means 'secure shell'. It is a protocol will allow you to log into the Pi from another computer on your network using a program like Putty to provide a command line interface in a terminal window.
  
This option has allowed me to access my Pi without a monitor attached to the Pi ok it’s easier if you have but let’s say you want to do some command line stuff and your partner/brother/sister whatever wants to use the TV for corrie or suchlike.
+
Putty is free and available to download. It’s free Open source and runs on both Windows,Linux. There are other things available for Mac’s (I’m not really familiar enough but I believe there’s an option in Xterm).  
  
You can hook up the TV and use this option in the setup menu to toggle the ssh server.
+
This option allows access to the Pi without a monitor attached to the Pi. OK it’s easier if you have one but let’s say you want to do some command line stuff and your partner/brother/sister whatever wants to use the TV for Corrie or suchlike. Its particularly useful for starting a VNC server on the Pi so you can use the Pi's desktop on another computer. More details here???
  
Now let’s make this clear if you have not got a network connection to your Pi and you select the ssh option you will not get back to the menu without a re-set however if you have putty loaded on your PC and you know the IP address of your Pi then it’s a good option.
+
Using Putty or the like is pretty straightforward. You will need to know the IP address of the Pi, either by watching the startup output as it scrolls by, typing ipconfig at the Pi's command line or terminal window, or looking at your router. The IP address is dynamic and can change, particularly if you have not used the Pi for a day or so.
  
Playing with the Pi with putty is probably one of those things that will need it’s own guide notes because there’s all sorts of stuff associated with spotting what the IP address is. I have a discussion running on the forum to explore a solution for blind ssh startup.  
+
However if you are using everything from the box as is. That is to say you have your HDMI connected to a TV and a Keyboard and Mouse on the Pi and you have the menu running then I suggest you could disable ssh just to be on the safe side security wise(note just a suggestion).
  
I have found that even when I have known the address and I have selected ssh there’s no indication of the ssh state however using putty I’ve connected using the ip identified by interrogating my router. 
 
  
Then using the ssh option from this menu if the connection did not work hit enter on the Pi’s keyboard this appears to be the toggle one the selection has been made. 
+
== FINISH - Finish config and don’t start raspi-config at boot ==
  
However if you are using everything from the box as is.  That is to say you have your HDMI connected to a TV and a Keyboard and Mouse on the Pi and you have the menu running then I suggest you don’t run ssh (note just a suggestion).   
+
If you select <Ok> from this option then on all future startups you won't get the raspi-config menu. If you choose <Exit> then the next time you start your going to get this menu again automatically.   
  
==finish Finish config and don’t start raspi-config at boot==
+
== AFTER EXITING THE MENU ==
 
+
If you select <Ok> from this option and you reboot then you won't get this raspi-config menu if you choose <Exit> then the next time you start your going to get this menu again automatically. 
+
 
+
==after exiting the menu==
+
  
 
Ok lets assume you have happily worked your way through this and you selected OK for the final menu option.   
 
Ok lets assume you have happily worked your way through this and you selected OK for the final menu option.   
Line 168: Line 170:
 
You are going to get some gibberish about the Last Login (ignore this).   
 
You are going to get some gibberish about the Last Login (ignore this).   
  
Then there’s some info on finding further information on the included programs now as a new user for now even locating this stuff is probably a no-no.   
+
Then there’s some info on finding further information on the included programs. As a new user for now even locating this stuff is probably a no-no.   
  
 
Then you get the standard NO WARRANTY message it’s just legalese for “your doing this at your own risk” that kind of goes without saying.   
 
Then you get the standard NO WARRANTY message it’s just legalese for “your doing this at your own risk” that kind of goes without saying.   
Line 176: Line 178:
 
  Type ‘startx’ to launch graphical session  
 
  Type ‘startx’ to launch graphical session  
  
So if at this point you type startx followed by hitting the Enter key you will be launched headlong into a windows style environment. Should you feel inclined have fun. 
+
So if at this point you type startx followed by hitting the Enter key you will be launched headlong into a windows style environment. You may have wondered why you have not yet logged in; this is because raspi-config logged you in automatically the first time through. When you have finished work logout using the red exit button (bottom right) and then type sudo halt at the command line. Wait until 'System Halted' is displayed before pulling the plug.
 
+
If on the other hand you want to play in the rarefied atmosphere of the command line environs then you may want to manually reboot just to test your Pi.
+
 
+
If you use just the command "reboot" your RaspberryPi will tell you that you must be super user so type  
+
 
+
sudo reboot
+
  
instead this should restart your Pi give it a couple of minutes if it does not re-start on it’s own
+
If on the other hand you want to play in the rarefied atmosphere of the command line environs then type away. You are in the home directory of the pi user; typing ls followed by enter will display the files and directories. When you have finished don't forget to type sudo halt and wait until 'System Halted' is displayed before pulling the plug. 
  
switch it off and then on again.   
+
Finally you may want to manually reboot just to allow all the configuration settings to take effect; type sudo reboot at the command line.   
  
Hey it works more often than not. 
+
If you use just the command "reboot" your RaspberryPi will tell you that you must be super user so type sudo reboot
  
It's probably the oldest line of computerhelp you will ever see
+
This should restart your Pi. Scrolling text should appear immediately and there will be a pause if you have chosen to resize your SD card.

Revision as of 22:04, 26 June 2012

The raspi-config

When you start your Pi using the wheezy image The raspi-config menu appears and has the following entries.

info			Information about this tool
expand-rootfs		Expand root partition to fill SD card
overscan		Change overscan
configure-keyboard	Set keyboard layout
change_pass		Change password for ‘pi’ user
change_locale		Set locale
change_timezone        Set timezone
memory_split		Change memory split
ssh			Enable or disable ssh server
finish			Finish config and don’t start raspi-config at boot
<Ok>						<Exit>


MOVING AROUND THE MENU

At any point from within any of the menu or submenu options the Tab key will toggle about the selected entry and the options at the bottom inside angle brackets. There is an exception to this and that’s with the change_locale option, ignore that exception for now it’s covered later.

Some of the menu entries take quite a while to display.


WHAT RASPI-CONFIG DOES

Some entries modify the file /boot/config.txt This file, out of the box, contains a number of commented out configuration entries; raspi-config adds entries at the end of this file. You can see what raspi-config has done to the file by viewing it on the Pi using Leafpad, and if you really mess things up you can edit the file from the SD card using Notepad on a windows PC. More information on editing config.txt here??

Other entries modify Linux configuration files.


INFO - Information About This Tool

This would be really helpful if it actually explained the options in the menu, hopefully at least it will provide a reference to this Wiki page.

It helpfully advises you may have difficulties if you have heavily customised your installation but as this is probably the first thing a rookie is going to see the likelihood of a heavily customised installation is small.

raspi-config appears automatically at first boot. You can run it at any time after that by typing sudo raspi-config (case sensitive) at the command line or in a terminal window. The sudo (do as superuser) is necessary because you will be changing files that you as user pi do not own, its Debian's way of providing a root login.

The lovely thing about the Pi is that if you mess up it will not be difficult to re-image; killing the install may require a re-image (check this).


EXPAND-ROOTFS - Expand Root Partition to Fill SD Card

This does what it says on the tin so if you have installed Wheezy on a 4GB or greater card use this option and AFTER REBOOT it will use all of the SD card. The Wheezy image takes nearly 2GB so if you are going to install additional software or large files its worth doing, however you don't need to do it on first boot. The downside to using all the card is that it takes much longer to backup the image.


OVERSCAN - Change Overscan

What would you like to do with overscan
<Disable>                      <Enable>

Any changes will take effect after a reboot. If you change a setting and end up losing the left sie of the screen you can easilty edit /boot/config.txt on a PC to undo the changes.

Televisions do not usually display the whole of the picture, they Overscan and crop of a few percent of the image. This is to hide the data signals such as teletext which use outer lines of the picture. However, computers including the Pi need to use all the lines so often the image displayed by computers on TV's is sometimes cropped.

To avoid losing the critical left column at first boot the clever Pi people have deliberately enabled Overscan and used negative overscan to make the displayed image smaller, and to play safe much smaller. This means, depending on your monitor/TV there may be black borders around the picture, LXDE will show the wrong resolution in its display information, and the display may be a bit fuzzy.

On some displays, particularly monitors, just disabling Overscan will make the picture fill the whole screen and correct the resolution. For other displays it may be necessary to fiddle with Overscan values, more information here????.


CONFIGURE-KEYBOARD - Set keyboard layout

This is the setting for using different attached keyboards that is brands of keyboards first followed by other choices to set up nationality of keyboards etc.

The first list will probably fall to one of the generic 105 key keyboards but it’s probably not a big deal if you cant find yours on the list have fun remember you can always re-image or if your really stuck.

The next screen regards keyboard layout. If you are not using the first choice of English UK select Other and you will be faced with a long list of other national keyboards. Funnily enough this list includes English UK.

Next screen is actually quite well documented on the screen your probably going to run with one of the top two choices these are.

The default for the keyboard layout Or No AltGr key

To be honest if this is your first setup and you get this wrong it’s not going to break the bank and as I keep saying if in doubt re-image and start again.

Next screen well if your using a standard keyboard then you probably don’t have a compose key and if your new to computing as intended your not likely to need one for a while so I would suggest choosing

No compose key

The next screen is a useful one and the on screen documentation is actually quite clear provided you know what is meant by “X server” so here’s an outline:

When you have finished your install the last line of the startup will tell you that you can run startx. Startx is the command to run the windows (like) screen where you use a mouse to select options.

This is the X server and to get back to command line (that’s all the typed stuff) you can have [Ctrl][Alt][Backspace] all pressed at the same time to shut down this X server screen; you can always restart it by typing “startx”. Always handy if you have a flaky mouse or are using a wireless mouse that eats batteries.

Of course this is pointless if you don’t remember the key combination when the time comes!


CHANGE_PASS - Change password for ‘pi’ user

The default user for the wheezy install is pi and the normal password is raspberry. Until your familiar with the setup it’s probably better to leave this password as it is at least till you are happy changing stuff. In addition you can re-run raspi-config to change it at any time.

To return to my mantra if you screw this up be prepared to re-image and lose any work you have done or programs installed (you did back up didn't you). with Linux and Unix forgotten passwords are a killer the Raspberry Pi is one of the simpler systems. Let's face it till you know what your looking at, the out of the box solution of pi and raspberry are probably all you will need.


CHANGE_LOCALE - Set locale

You can tell this was written by a computer engineer and not a human how about this as an alternative.

change_locale Tell the computer if you need non English characters.

Sheesh! a computer aimed at children and new users and then you expect them to know what locale means.

This menu option gives you a massive list of choices that look like they were written by one of the infinite monkeys of legend (goggle infinite monkeys Shakespeare if you don’t understand this reference actually don’t I think you need to stick with this).

The default setting is

en_GB UTF-8 UTF-8

English Great Britain and UTF-8 is a code related to showing all of the characters usually needed to show English letters on the screen. If you are working in some other language than English then you will probably need to play around with this.

You can select multiple choices in the list the space bar toggles them on and off (this was the exception I mentioned earlier) and it’s a long list basically if you want to work in more than one language then you will need to make other choices from this list based on the languages you intend to use.

If you are working in English only the default choice is probably the only one you will need.


CHANGE_TIMEZONE - Set timezone

This is where you setup your clock now it’s no big issue if it’s wrong it just means the date and time assigned to files you create (automatically when you make them) will be out and its not hard to set this up.

The set up consists of two layers basically to make your selection easier to find.

First option screen think Continent; just to confuse things you have US and America because we all know USA is not part of America. Actually the US option just gives you a shorter list containing the US time zones that are included in the American list; they just made a shorter list under US for all those Good Old Boy American Citizens who don’t know about American places outside of the USA. (flames imminent).

SystemV relies on you knowing what SystemV is (Think Unix and ignore it for now).

Most people know where they are in the world for time zone for me it’s Europe then London on the next screen but I’ve always been of the opinion that there should be ropes and lights around the M25 with signs saying “Danger hole in the world Keep Out” but then I’m not from London and the M25 was always the road to hell.

MEMORY_SPLIT - Change memory split

This allows you to choose how much of the RAM memory is set aside for the Broadcom GPU and how much for the operation of the main ARM processor.

Three choices 32MB for GPU 64MB for GPU 128MB for GPU. First time users should leave it at 64MB for the GPU. There is more information on when to use the different options here????. You can change it with raspi-config and it will take effect at the next reboot.

Now let’s assume your really fresh to writing code, as in never done this before ever. Your not going to be writing really complex Artificial Intelligence type programs and your also unlikely to be running cutting edge real time first person shooter games not yet anyways. I like the idea of having 128 meg for graphics. As a new programmer your not likely to push graphics unless you want to do something with photos or live streaming (Watching Live TV on your Pi).


SSH - Enable or disable ssh server

NOTE: This is broken in Wheezy Beta. If you enter it by mistake press CTRL-C and sudo raspi-config to recover.

This change takes effect when???

This option enables or disables the ssh server, a program which sits in the background looking for ssh connections from other computers. The default setting is on and there's little reason for a new user to change this unless your home network has hostile users or is open to the Internet.

ssh means 'secure shell'. It is a protocol will allow you to log into the Pi from another computer on your network using a program like Putty to provide a command line interface in a terminal window.

Putty is free and available to download. It’s free Open source and runs on both Windows,Linux. There are other things available for Mac’s (I’m not really familiar enough but I believe there’s an option in Xterm).

This option allows access to the Pi without a monitor attached to the Pi. OK it’s easier if you have one but let’s say you want to do some command line stuff and your partner/brother/sister whatever wants to use the TV for Corrie or suchlike. Its particularly useful for starting a VNC server on the Pi so you can use the Pi's desktop on another computer. More details here???

Using Putty or the like is pretty straightforward. You will need to know the IP address of the Pi, either by watching the startup output as it scrolls by, typing ipconfig at the Pi's command line or terminal window, or looking at your router. The IP address is dynamic and can change, particularly if you have not used the Pi for a day or so.

However if you are using everything from the box as is. That is to say you have your HDMI connected to a TV and a Keyboard and Mouse on the Pi and you have the menu running then I suggest you could disable ssh just to be on the safe side security wise(note just a suggestion).


FINISH - Finish config and don’t start raspi-config at boot

If you select <Ok> from this option then on all future startups you won't get the raspi-config menu. If you choose <Exit> then the next time you start your going to get this menu again automatically.

AFTER EXITING THE MENU

Ok lets assume you have happily worked your way through this and you selected OK for the final menu option.

You are going to get some gibberish about the Last Login (ignore this).

Then there’s some info on finding further information on the included programs. As a new user for now even locating this stuff is probably a no-no.

Then you get the standard NO WARRANTY message it’s just legalese for “your doing this at your own risk” that kind of goes without saying.

Then the key line.

Type ‘startx’ to launch graphical session 

So if at this point you type startx followed by hitting the Enter key you will be launched headlong into a windows style environment. You may have wondered why you have not yet logged in; this is because raspi-config logged you in automatically the first time through. When you have finished work logout using the red exit button (bottom right) and then type sudo halt at the command line. Wait until 'System Halted' is displayed before pulling the plug.

If on the other hand you want to play in the rarefied atmosphere of the command line environs then type away. You are in the home directory of the pi user; typing ls followed by enter will display the files and directories. When you have finished don't forget to type sudo halt and wait until 'System Halted' is displayed before pulling the plug.

Finally you may want to manually reboot just to allow all the configuration settings to take effect; type sudo reboot at the command line.

If you use just the command "reboot" your RaspberryPi will tell you that you must be super user so type sudo reboot

This should restart your Pi. Scrolling text should appear immediately and there will be a pause if you have chosen to resize your SD card.