after building 3.1.0-rc1+, I get waiting for root fs error when booting

Richard.Yang · 08-23-2011, 08:49 AM

I search the web, and some people mentioned it due to the ext4 problem.

I add this feature in my kernel, but still couldn't boot.

BTW, my root fs is ext2.

$df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/sda2 ext2 25204844 8046176 15878312 34% /
udev tmpfs 998164 328 997836 1% /dev
none tmpfs 998164 692 997472 1% /dev/shm
none tmpfs 998164 96 998068 1% /var/run
none tmpfs 998164 0 998164 0% /var/lock
none tmpfs 998164 0 998164 0% /lib/init/rw

Richard.Yang · 08-23-2011, 08:51 AM

This is my menu.lst

title my linux
root (hd0,1)
kernel /boot/vmlinuz-2.6.36-rc8+ root=/dev/sda2 ro
initrd /boot/initrd.img-2.6.36-rc8+

title linux3.1
root (hd0,1)
kernel /boot/vmlinuz-3.1.0-rc1+ root=/dev/sda2 ro
initrd /boot/initrd.img-3.1.0-rc1+

my linux works fine.

millgates · 08-23-2011, 08:57 AM

hi,
does the 3.1.0 have the corresponding config and System.map?
did you make initrd with -m ext2?

Richard.Yang · 08-25-2011, 05:25 PM

Sorry for the late response, I stuck on other issue...

I have the System.map, should I upload?
No, I didn't use -m ext2. But when I build 2.6.3x, I neither use -m ext2.

Richard.Yang · 08-26-2011, 09:27 AM

Quote:

Originally Posted by millgates

hi,
does the 3.1.0 have the corresponding config and System.map?
did you make initrd with -m ext2?

Hi,

Since I just could access my machine after work, I check again.

I use this command to creat initrd
mkinitramfs 3.1.0-rc1+ -o /boot/initrd.img-3.1.0-rc1+
and I man this command, and don't find the -m option.
Then I am not sure how to create the initrd?

Richard.Yang · 08-28-2011, 08:25 AM

I booted again, and find it says not find /dev/sda2

millgates · 08-28-2011, 08:46 AM

it's just a wild guess but did you compile the new kernel with the same config as the old one? Didn't you forget to check some options for the filesystem or the hard drive you're using? Did you also install the modules after the compilation?

Richard.Yang · 08-29-2011, 06:24 PM

Thanks!

I rebuild kernel with old config.
And it works!

Though I don't know with option I changed.