Thread: Ubuntu 12.04 on N900 with U-Boot
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caveman is offline caveman
2012-06-21 , 11:40
Posts: 191 | Thanked: 415 times | Joined on Jan 2012
#275
I tried booting ubuntu with u-boot-menu from http://talk.maemo.org/showthread.php?t=81613.

Three tries were made:
  1. run sdboot
  2. boot from vfat partition
  3. boot from ext4 partition

sdboot run sdboot from u-boot console. It complains about invalid uImage format, but loads the kernel. The kernel fails with
'mmc0: error -110 whilst initializing SD card'
mmc1 is recognized (internal MMC)

boot from vfat partition I used the following item file:
Code:
ITEM_NAME="ubuntu"
ITEM_KERNEL="uImage"
ITEM_INITRD="uInitrd"
ITEM_DEVICE="${EXT_CARD}p1"
ITEM_FSTYPE="vfat"
ITEM_CMDLINE="vram=12M omapfb.mode=dvi:1280x720MR-16@60 mpurate=\${mpurate} root=/dev/mmcblk0p3 fixrtc quiet splash"
It says: 'Wrong Ramdisk Image format' and goes to u-boot console.
Kernel and uImage MD5:
Code:
1d3342ca201408bc51289f53a5740eda  /media/mmc1/uImage
3b5d3c7d207e37dceeedd301e35e2e58  /media/mmc1/uInitrd
boot from ext4 partition I used the following item file:
Code:
ITEM_NAME="Ubuntu 12.04"
ITEM_KERNEL="uImage"
ITEM_DEVICE="${EXT_CARD}p3"
ITEM_FSTYPE="ext4"
ITEM_CMDLINE="root=/dev/mmcblk0p3 rootwait console=tty0 omapfb.vram=0:2M,1:2M,2:2M mtdoops.mtddev=2 nosplash elevator=noop panic=20"
ITEM_REUSEATAGS="1"
Kernel and uImage MD5:
Code:
1d3342ca201408bc51289f53a5740eda  /media/mmc1p3/uImage
3b5d3c7d207e37dceeedd301e35e2e58  /media/mmc1p3/uInitrd
Similar to the 'run sdboot' case. The kernel is loaded and fails with -110 on uSD.

This is the only uSD I have available, so I can not rule out a card problem.

Those are with the custom kernel. Is it worth trying with another kernel?