|
|
(3 intermediate revisions by 3 users not shown) |
Line 1: |
Line 1: |
− | Create initrd Procedure (note change count to your required filesystem size):
| + | See [http://wiki.davincidsp.com/index.php?title=Initrd initrd] article of [http://wiki.davincidsp.com/index.php?title=Main_Page official DaVinci wiki]. |
| | | |
− | <code><pre>
| + | [[Category:Development Boards]] |
− | > dd if=/dev/zero of=uRamdisk.img bs=1k count=20480
| |
− | > mkfs.ext2 -F -v -M0 uRamdisk.img
| |
− | > mount -o loop uRamdisk.img <path to mount point>
| |
− | </pre></code>
| |
− | Now copy all the files needed for RAMDISK to the <path to mount point>.. that would be busybox and/or other apps and libs.
| |
− | | |
− | <code><pre>
| |
− | > umount <path to mount point>
| |
− | > gzip -9 < uRamdisk.img > uRamdisk
| |
− | </pre></code>
| |
− | Installing the Ramdisk (/tftpboot/uRamdisk) via u-boot
| |
− | | |
− | Copy the data into RAM then flash:
| |
− | | |
− | <code><pre>
| |
− | UBOOT# install_ramdisk 'tftp 0x2200000 uRamdisk; era 0x2200000 +${filesize};cp.b 0x85000000 0x2200000 ${filesize}'
| |
− | </pre></code>
| |
− | Save the ramdisk size into an environmental variable:
| |
− | | |
− | <code><pre>
| |
− | UBOOT# setenv ramdisksize 0x${filesize}; saveenv
| |
− | </pre></code>
| |
− | Update the boot parameters:
| |
− | | |
− | <code><pre>
| |
− | UBOOT# setenv bootargs 'mem=120M console=ttyS0,115200n8 ip=dhcp root=/dev/ram0 rw initrd=0x85000000,8M'
| |
− | UBOOT# setenv bootcmd 'cp.b 0x2200000 0x85000000 ${ramdisksize}; bootm'
| |
− | </pre></code>
| |
Latest revision as of 12:40, 10 February 2008