[CentOS] boot problem after disk change on raid1

Thu Sep 8 06:18:45 UTC 2011
Bünyamin İzzet <bunyamin.izzet at gmail.com>

On Thu, Sep 8, 2011 at 8:11 AM, Devin Reade <gdr at gno.org> wrote:

> Bünyamin Ýzzet <bunyamin.izzet at gmail.com> wrote:
>
> > On Wed, Sep 7, 2011 at 11:38 PM, Devin Reade <gdr at gno.org> wrote:
> >
> [snip]
> >>                        # grub
> >>                        grub> device (hd0) /dev/sdb
> >>                        grub> root (hd0,0)
> >>                        grub> setup (hd0)
> >>                        grub> quit
> >
> > It still does not boot. I could not see the error message, because it is
> a
> > dedicated server and I am not sitting at the monitor of the server. So I
> > type the lines in grub.conf manually to see the error (I'm not sure if it
> is
> > the right thing to see the error).
>
> If you mean that you typed the lines I gave above into grub.conf, then
> that was not what was intended (and I doubt that it would work).  My
> intent was that you get the system booted and running normally (perhaps
> via the rescue disk), and after that execute 'grub' interactively
> and issue those commands.
>
>  Devin
>

As you said, I booted the system via rescue disk, and execute grub and issue
those commands. Then, I reboot the system, but it does not boot.

Then I searched on google about logging grub errors, which I could not find
anything useful (meybe I did not look enough). So that, in rescue system, I
execute grub and type commands in grub.conf (results are below) to see which
error occurs.



# grub
Probing devices to guess BIOS drives. This may take a long time.


GNU GRUB version 0.97 (640K lower / 3072K upper memory)

[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename.]
grub> root (hd1,0)
root (hd1,0)
Filesystem type is ext2fs, partition type 0xfd
grub> kernel /vmlinuz-2.6.18-238.19.1.el5 ro root=/dev/md1 vga=0x317

kernel /vmlinuz-2.6.18-238.19.1.el5 ro root=/dev/md1 vga=0x317
[Linux-bzImage, setup=0x1e00, size=0x1fe01c]
grub> initrd /initrd-2.6.18-238.19.1.el5.img

initrd /initrd-2.6.18-238.19.1.el5.img

Error 28: Selected item cannot fit into memory
grub> quit
quit
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