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| | {{YoderHead}} | | {{YoderHead}} |
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| − | In this class we run [http://www.angstrom-distribution.org/ The Ångström Distribution] on the BeagleBoard. Ångström is a stable and user-friendly distribution of Linux for embedded devices like handhelds, set top boxes and network-attached storage devices and the BeagleBoard. | + | In this class we run [https://www.debian.org/ The Debian Distribution] on the BeagleBoard. Here's how to load the Debian image we'll be using on an SD card. First get a microSD card that holds at least 8G. |
| | + | == Downloads == |
| | + | There are two items you need to download, the image to copy to your SD card and the software to copy it. |
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| − | Here's how to load the Ångström image we'll be using on an SD card. First get a microSD card that holds at least 4G.
| + | Use '''balenaEtcher''' to copy to your SD card. Download it from here: https://www.etcher.io/. It runs on Linux, Mac or Windows, so pick your favorite OS and install it. |
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| − | == Download and write a copy of the Ångström image ==
| + | There are many versions of Debian we could use. Browse to https://rcn-ee.net/rootfs/bb.org/testing/2020-08-31/buster-iot/ and download '''bone-debian-10.5-iot-armhf-2020-08-31-4gb.img.xz''' |
| − | === bone ===
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| − | I'm presently running the SD image that comes with [http://circuitco.com/support/index.php?title=BeagleBone_A6_Image_06.18.2012 BeagleBone Rev A6]. [http://circuitco.com/support/index.php?title=BeagleBone_A6_Image_06.18.2012 Release Notes].
| + | == Copying to your SD card == |
| | + | # Start up balenaEtcher. |
| | + | # Select the image you downloaded (no need to uncompress it). |
| | + | # Put your SD card in the reader and select it. |
| | + | # Click '''Flash!''' and wait for it to finish. |
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| − | host$ '''cd Downloads'''
| + | Once the SD card is flashed, put it in your Bone and boot it up. |
| − | host$ '''wget http://circuitco.com/support/files/BeagleBone-A6/BeagleBone_Rev_A6_Production_06_18_2012.7z'''
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| − | host$ '''wget http://circuitco.com/support/files/BeagleBone-A6/BeagleBone_Rev_A6_Production_06_18_2012.md5'''
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| − | | |
| − | The first '''wget''' command copies the disk image. The second gets the checksum. Uncompress the image and verify that it was downloaded correctly.
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| − | | |
| − | host$ '''sudo apt-get install p7zip-full'''
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| − | host$ '''7z e BeagleBone_Rev_A6_Production_06_18_2012.7z''' (takes about 2.5 minutes)
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| − | host$ '''cat BeagleBone_Rev_A6_Production_06_18_2012.md5'''
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| − | # MD5 checksums generated by MD5summer (http://www.md5summer.org)
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| − | # Generated 6/25/2012 3:15:27 PM
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| − |
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| − | 916476a3fc46dfe49647578e6ae5fd6f *BeagleBone_Rev_A6_Production_06_18_2012.7z
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| − | d5e6007e4a3fe1020ab91c8738a53eec *BeagleBone_Rev_A6_Production_06_18_2012.img
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| − | $host '''md5sum BeagleBone_Rev_A6_Production_06_18_2012.7z BeagleBone_Rev_A6_Production_06_18_2012.img'''
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| − | 916476a3fc46dfe49647578e6ae5fd6f BeagleBone_Rev_A6_Production_06_18_2012.7z
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| − | d5e6007e4a3fe1020ab91c8738a53eec BeagleBone_Rev_A6_Production_06_18_2012.img
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| − | | |
| − | If the numbers from the '''cat''' command match the numbers from the '''md5sum''' command, then you have a good image. Insert your microSD card in a reader/writer and find the path to it by running '''System:Administration:Disk Utility'''. You will see
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| − | | |
| − | [[File:Screenshot-Disk_Utility.png| 400x293px]]
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| − | The path is in the upper right.
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| − | | |
| − | Then enter (if you're using Ubuntu, note the use of the '''sudo''' command):
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| − | | |
| − | host$ '''sudo dd if=BeagleBone_Rev_A6_Production_06_18_2012.img of=/dev/sd''X'' bs=8M'''
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| − | | |
| − | Where <code>/dev/sd''X''</code> is the path to your SD card. This may take 10 minutes. Mine took about 7.5.
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| − | | |
| − | Plug the card into your BeagleBone and boot. Try the following commands.
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| − | | |
| − | beagle$ '''uname -a'''
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| − | Linux beaglebone 3.2.18 #1 Thu Jun 14 23:26:20 CEST 2012 armv7l GNU/Linux
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| − | beagle$ '''cat /proc/cmdline'''
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| − | console=ttyO0,115200n8 run_hardware_tests quiet root=/dev/mmcblk0p2 ro
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| − | rootfstype=ext4 rootwait ip=none
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| − | | |
| − | === xM ===
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| − | Download a copy of the image [http://www.rose-hulman.edu/~yoder/Beagle/ here]. You'll see several files here. You want to download '''ETC2012.img.bz2''' and '''ETC2012.img.bz2.md5'''. The first is some 1.5G, so it will take a while. The second is a check sum file for the first.
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| − | | |
| − | Once you have the two files and the card, what you do with them depends on what OS you are running.
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| − | | |
| − | host$ '''md5sum ETC2012.img.bz2'''
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| − | host$ '''cat ETC2012.img.bz2.md5'''
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| − | | |
| − | The two command should show the same thing
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| − | 6610e1ea35febc5e9016734213bdba68 ETC2012.img.bz2
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| − | | |
| − | If your results match you have successfully downloaded the image and can move on. If they don't match, try downloading again.
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| − | | |
| − | Next uncompress the image.
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| − | host$ '''bunzip2 -k ETC2012.img.bz2'''
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| − | The '''-k''' says to keep the compressed file. This will take a few minutes.
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| − | | |
| − | Insert your microSD card in a reader/writer and find the path to it by running '''System:Administration:Disk Utility'''. You will see
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| − | | |
| − | [[File:Screenshot-Disk_Utility.png| 400x293px]]
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| − | | |
| − | The path is in the upper right.
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| − | | |
| − | Then enter (if you're using Ubuntu, note the use of the '''sudo''' command):
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| − | | |
| − | host$ '''sudo dd if=ETC2012.img of=/dev/sd''X'' bs=256M'''
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| − | host$ '''sync'''
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| − | | |
| − | Where <code>/dev/sd''X''</code> is the path to your SD card. This may take 10 minutes. Mine took about 7.5.
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| − | | |
| − | An alternative recipe is to uncompress and write the content to your SD card all in one move (again, if you're using Ubuntu, note the need for '''sudo'''):
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| − | | |
| − | host$ '''bunzip2 -c ETC2012.img.bz2 | sudo dd of=/dev/sd''X'' bs=256M'''
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| − | | |
| − | so that you don't have to uncompress the image file first.
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| − | | |
| − | == Writing an SD card via Windows ==
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| − | | |
| − | The following instructions come from [http://code.google.com/p/beagleboard/wiki/BeagleBoardDiagnosticsNext here].
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| − | | |
| − | To initialize your card under Windows, you can do the following:
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| − | | |
| − | # Download and install [https://wiki.ubuntu.com/Win32DiskImager Ubuntu's Win32DiskImager] (also known as the [https://launchpad.net/win32-image-writer/ win32-image-writer]).
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| − | # Download and install [http://www.7-zip.org/ 7-zip compression software]. (Or use winRAR)
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| − | # Decompress '''ETC2012.img.bz2''' image file using 7-zip (or winRAR).
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| − | # Insert >=4GB SD card into the reader/writer.
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| − | # Start the Win32DiskImager.
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| − | # Select '''ETC2012.img''' and correct SD card location.
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| − | # Click on '''Write'''.
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| − | After the image writing is done (this will take some 10 minutes), eject the SD card.
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| − | | |
| − | == Boot your Beagle ==
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| − | | |
| − | You should now have a functioning SD card image. Plug it into your BeagleBoard and boot it up.
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| − | | |
| − | While the root password used to be '''test''', there appears to be no password on the root account in this image.
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| | {{YoderFoot}} | | {{YoderFoot}} |
Embedded Linux Class by Mark A. Yoder
