Kernel panic : No init found ........

[Ryoji]

Hi, all. I am Ryoji.
I am new to Linux Forums, and I started to use Scientific Linux just recently.


And now, I am troubled with booting OS.
I think Because I removed /lib/tls/libc.so.6 .
Then, some commands didn't work, and unfortunately I tried to reboot.
So, I got to watch the error message like this :

kernel panic : No init found. Try passing init= option to kernel

Somebodies asked same questions to mine, and got the answer from the wise.
But it seems not to suit my situation, because now I can not reboot, and cannot command, just watching the screen to select OS. The OS is only scientific linux.

I seek for the information, but I can solve this problem.
I hope you tell me some suggestions to solve it. WHAT SHOULD I DO?


And this is my first post, and I am not good at English. but I never mean I will bother you. I don't wanna bother you.
Thank you for your kindness.

[henrikau]

I'm not sure why the system would fail to boot just because you remove libc, at least with that error-message you describe here.

Try setting init=single to see if you can boot into the system that way. At least that will prove that it's not the kernel that's fubar (or the disks..)

When you see the bootmenu, press 'e' for edit, then 'e' again for the kernel in the next window (second line). Then, move the cursor to the end of the line and add init=single

then press enter and 'b' to boot.

Let me know how things go

[Ryoji]

Thank you for your suggestion, Henrikau

I tried as you said though, I could not boot again.
The line that you told me to add "init=single" at the end is like :

grub edit> kernel /boot/vmlinuz-2.4.21-52.EL ro root=LABEL=/

and then I added like :

grub edit> kernel /boot/vmlinuz-2.4.21-52.EL ro root=LABEL=/init=single

and I pressed "enter" and "b". I met the error massage too. the last 7 lines or this massage were :

mkrootdev: label /init=single not found
Mounting root filesystem
mout: error 2 mounting ext3
pivotroot: pivot_root(/sysroot,/sysroot/initrd) failed: 2
umount /initrd/proc failed: 2
Freeing unused kernel memory: 164k freed
Kernel panic: No init found. Try passing init= option to kernel.

I hope I could boot again because of you helps.
Thank you for your kindness.

[henrikau]

The first thing that strikes me, is that it looks like you don't have a space between LABEL=/ and init

Try a line like so:

 kernel /boot/vmlinuz-2.4.21-52.EL ro root=/dev/sda1 init=single ro

I am assuming that the root-partition is on /dev/sda1, if not, you'll have to change that (to sda2 sda3 or whatever is the correct in your setting)

UPDATE:
I just noticed - you're running a 2.4 kernel - you might have to change /dev/sda1 to /dev/hda1 ...

Or, udate to a 2.6 kernel if that's possible

[Ryoji]

Hi, Henrikau

it didn't work well.
When I wrote :

>kernel /boot/vmlinuz-2.4.21-52.EL ro root=/dev/sda1 init single ro

and pressed "enter" and "b", then I got the error message :

     creating block devices
     creating root device
     Mounting root filesystem
     mount : error 6 mounting ext3
     pivotroot: pivot_root(/sysroot,/sysroot/initrd) failed: 2
     umount /initrd/proc failed: 2
     Freeing unused kernle memory: 164k freed
     Kernel panic: No init found. Try passing init= option to kernel.

When I reworte "/dev/sda1" to "/dev/hda1", it didn't work well too.


When I wrote :

     >kernel /boot/vmlinuz-2.4.21-52.EL ro root=LABEL/ init=single

then pressed "enter" and "b", I got the error massage :

     
     Creating block devices
     Creating root device
     Mounting root filesystem
     kjournald starting. Commit interval 5 seconds
     EXT3-fs: mounted filesystem with ordered data mode.
     Freeing unused kernel memory : 164k freed
     init: relocation error: /lib/i686/libc.so.6: symbol _rtld_global_ro, version GLIBC_PRIVATE not defined in file ld-linux.so.2 with link time reference
     Kernel panic: Attempted to kill init!

And when I wrote nothing special and pressed "enter" and "b", it didn't work well too.

I am totally disappointed ,actually because of my mistake and tiny knowledge.
Anyway, I still hope I could boot with your great kindness.
Thank you.