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nocph
n00b
Joined: 14 Jul 2007
Posts: 17
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 Posted: Fri Mar 28, 2008 3:42 am Post subject: kernel panic |
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Hi All,
I'm installing gentoo and I my guide is quick install. The thing is after installing and reboot the system. I have this error
| Quote: | No filesystem could mount root, tried:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) |
I'm not sure what I did but I tried it for 4 times still I got the same error... I double check everything on my typo and path /dev/sda still not successful...
Kernel version is kernel-2.6.24-gentoo-r3 emerge from gentoo-source.
Any ideas  |
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SiberianSniper
Guru
Joined: 06 Apr 2006
Posts: 378
Location: Dayton, OH, USA
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| Posted: Fri Mar 28, 2008 3:55 am Post subject: |
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two possibilities come to mind...
a) Could you post the root and kernel lines in grub.conf?
b) Does your kernel have sata support, as well as support for the filesystem you picked for /dev/sda# ? |
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nocph
n00b
Joined: 14 Jul 2007
Posts: 17
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| Posted: Fri Mar 28, 2008 5:33 am Post subject: |
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| Quote: | default 0
timeout 30
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
title=Gentoo Linux 2.6.19-r5
root (hd0,0)
kernel /boot/kernel-2.6.24-gentoo-r3 root=/dev/sda3
title=Gentoo Linux 2.6.19-r5 (rescue)
root (hd0,0)
kernel /boot/kernel-2.6.24-gentoo-r3 root=/dev/sda3 init=/bin/bb |
Yes, It has a SATA support. I manually select it while compiling the kernel. My 2nd install I used genkernel-all, Have the s ame result.
My previous installation using kernel 2.6.19-r5, was successful and I didn't have any problem using the quick install guide... This kernel version don't have loadable module by default you have to select manually before compiling, then you can make module_install.
I'm kind a confuse on this new version? Any ideas where did I go wrong?
Thanks... |
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notHerbert
Advocate
Joined: 11 Mar 2008
Posts: 2228
Location: 45N 73W
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| Posted: Fri Mar 28, 2008 11:14 am Post subject: |
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Try enabling ext2
| Code: | | <*> Second extended fs support |
I had the same problem, and I tried many different solutions. Sata is good if you have sata drives, otherwise it will actually slow your system..
I use JFS and so didn't need ext2, but it seems that the kernel insists.  |
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prague14
n00b
Joined: 09 Nov 2007
Posts: 40
Location: USA
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| Posted: Fri Mar 28, 2008 8:50 pm Post subject: |
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Make sure you add *everything* you need in your kernel. This includes ensuring PCI (and PCIe if you need it) and the block layer are enabled, as well as all the file systems you need (ext2 and 3 as mentioned earlier, plus any others you want to try/use).
You may need to take the time to go through each category/option one by one and read what each one does. You can do this by typing ? (shift+/) on the highlighted option - some options will say things like, 'if you're unsure, select Y' in their description. It's a good practice to get into, you'll be compiling quite a bit on your first dozen systems or so, unless you use genkernel. And if it still doesn't boot - go back and try again, you'll get it eventually... 
If you haven't done so already, if your using the live cd to install, run the lspci command and jot down the vendor info you get in the output. This will help eliminate some of the guess work.
Hope this helps! 
_________________
For a wounded man shall say to his assailant,
"If I live, I will kill you. If I die, you are forgiven."
Such is the rule of honor.
Last edited by prague14 on Fri Mar 28, 2008 8:54 pm; edited 1 time in total |
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prague14
n00b
Joined: 09 Nov 2007
Posts: 40
Location: USA
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| Posted: Fri Mar 28, 2008 8:54 pm Post subject: |
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Also, I used to mess up and forget to mount /boot before compiling my kernel. Once your system is at least booting from the sata drive, remember to mount /boot before the 'make install' step if you need to recompile after the initial install.
_________________
For a wounded man shall say to his assailant,
"If I live, I will kill you. If I die, you are forgiven."
Such is the rule of honor. |
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nocph
n00b
Joined: 14 Jul 2007
Posts: 17
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| Posted: Sat Mar 29, 2008 1:25 am Post subject: |
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Hi Guys,
What I did now is genkernel-all this is like from the liveCD, I don't think the genkernel miss something... That's what the document said...
Same error... again...
How can I emerge the old kernel... I have no problem installing old kernel-2.6.20... |
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d2_racing
Bodhisattva
Joined: 25 Apr 2005
Posts: 13047
Location: Ste-Foy,Canada
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| Posted: Sat Mar 29, 2008 1:37 am Post subject: |
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Can you post this command plz :
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nocph
n00b
Joined: 14 Jul 2007
Posts: 17
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| Posted: Mon Mar 31, 2008 2:18 am Post subject: |
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Here's my FDISK output
| Quote: | livecd ~ # fdisk -l
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 13 104391 83 Linux
/dev/sda2 14 4014 32138032+ 82 Linux swap / Solaris
/dev/sda3 4015 30401 211953577+ 83 Linux
livecd ~ #
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nocph
n00b
Joined: 14 Jul 2007
Posts: 17
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| Posted: Mon Mar 31, 2008 4:17 am Post subject: |
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Hi Guys,
Successfully installed using vserver sources kernel. I haven't tried the ext 2 fs.
Looks like the new kernel are for advance linux users. |
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nocph
n00b
Joined: 14 Jul 2007
Posts: 17
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| Posted: Mon Mar 31, 2008 4:28 am Post subject: |
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| d2_racing wrote: | Can you post this command plz :
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livecd ~ # fdisk -l
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 13 104391 83 Linux
/dev/sda2 14 4014 32138032+ 82 Linux swap / Solaris
/dev/sda3 4015 30401 211953577+ 83 Linux
livecd ~ # |
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Installing Gentoo
