Thread (7 messages) 7 messages, 2 authors, 2016-12-12

Kernel boot panic

From: Amit Mahadik <hidden>
Date: 2016-12-12 08:53:11

Possibly related (same subject, not in this thread)

Hi Kristof,? ? ? ? ? ? ? ?Yes I have compiled the EXT3 support into the kernel itself. But no luck yet!
Regards,Amit. 

    On Thursday, 8 December 2016 10:51 PM, Kristof Provost [off-list ref] wrote:
 

 On 8 Dec 2016, at 15:59, Amit Mahadik wrote:
? ? ?Hi,
? ? ? I am trying to boot Linux kernel version 4.4.16 on custom ARM 
based development platform.I want to separate rootfs and kernel Image 
so that the size of my uImage is small. I followed the following 
steps.
1. Partitioned the SD card. It has 2 partition. First partition is 
formatted as vfat partition and ? ?has uImage (without rootfs). 
Second partition is formatted as ext3 and has the rootfs.2. I then 
changed the U-Boot (version 2011.05) bootargs? ?Kernel command line: 
console=ttyS0,115200 noinitrd rw rootfstype=ext3 root=/dev/mmcblk0p2 
? ? ? ? ?rootwait mem=512M coherent_pool=4M no_console_suspend 
resume=/dev/mtdblock3.

However, while booting I get the following error?
Failed to create /dev/root: -2VFS: Cannot open root device "mmcblk0p2" 
or unknown-block(179,2): error -2
I have also attached log for reference.?Can anyone please point out 
what I may be missing?
Well, your kernel finds the partition, but it?s still unable to open 
the root device.
Did you remember to compile ext3 support into your kernel (so not as a 
module)?

Regards,
Kristof

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