Kernel Panic

Hello guys,

Im new with beagleboard xM rev C and im trying to do a custom Linux using buildroot.

I got this error when i tried to load rootfs

[ 3.971069] Waiting for root device /dev/mmcblk0p2…
[ 4.010833] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 4.027435] mmc0: new high speed SDHC card at address 1234
[ 4.036407] mmcblk0: mmc0:1234 SA04G 3.63 GiB
[ 4.046142] mmcblk0: p1 p2
[ 4.084747] EXT3-fs (mmcblk0p2): error: couldn’t mount because of unsupported optional features (240)
[ 4.099792] List of all partitions:
[ 4.106109] b300 3813376 mmcblk0 driver: mmcblk
[ 4.114349] b301 65536 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1
[ 4.127929] b302 3746816 mmcblk0p2 00000000-0000-0000-0000-000000000mmcblk0p2
[ 4.141601] No filesystem could mount root, tried: ext3
[ 4.149993] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)

Can anyone help me ?

Thanks

Atenciosamente

Eduardo Gorio
(www.gorio.eng.br)

Hello guys,

Im new with beagleboard xM rev C and im trying to do a custom Linux using buildroot.

I got this error when i tried to load rootfs

[ 3.971069] Waiting for root device /dev/mmcblk0p2…
[ 4.010833] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 4.027435] mmc0: new high speed SDHC card at address 1234
[ 4.036407] mmcblk0: mmc0:1234 SA04G 3.63 GiB
[ 4.046142] mmcblk0: p1 p2
[ 4.084747] EXT3-fs (mmcblk0p2): error: couldn’t mount because of unsupported optional features (240)

Your root filesystem is using just more then “ext3”, enable the optional ext3 feature configs… (they are right below ext3 in menuconfig, you can’t miss them…)

[ 4.099792] List of all partitions:
[ 4.106109] b300 3813376 mmcblk0 driver: mmcblk
[ 4.114349] b301 65536 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1
[ 4.127929] b302 3746816 mmcblk0p2 00000000-0000-0000-0000-000000000mmcblk0p2
[ 4.141601] No filesystem could mount root, tried: ext3
[ 4.149993] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)

Regards,

Hello Robert,

I didn`t see ext3 in menuconfig, just ext2.

Can you help me to what item do i need to select ?

Thank you

Atenciosamente

Eduardo Gorio
(www.gorio.eng.br)

2012/9/20 Robert Nelson <robertcnelson@gmail.com>

Screenshot.png

eh… that’s the “buildroot” menuconfig, totally separate… Look into the Kernel’s menuconfig, to configure the kernel…

Regards,