Thaks for your kindness ...nothing

i've a prompt : ___________________________________________________________________________ GNU GRUB version 0.97 (640K lower / 3143360K upper memory)

[ Minima| BASH-like line editing is supported. For the first word, TAB list possible command completions. Anywhere else TAB list the possible completions of a device/filename.]

grub > ____________________________________________________________________________

Ernatalo

Il 13/09/2010 13.22, Jakub Jedelsky ha scritto:

Dne 13.9.2010 12:30, Ernatalo su Gmail napsal(a):

...

Hi to all, i have a server with Centos 5.5 - 64 bit and i done 3 maounths ago filesystem update from ext3 to ext4. All things worked fine behind today. Today i done centos upgrade and now i'heve only GRUB Prompt.

Can you help me me to strat the sterver without lose nothing?

Thanks

Ernatalo

...and what the grub says?

JJ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

i know that this is a good thing, but i've only 1 partition. /boot and /root are in the same partition that i convert from ext3 ti ext4. everything works fine until this morning. I "rebooted" the server many time from the "convertion" but i had never upgrade the Centos before today. with the update the trouble begun! from Installation DVD i can see the /dev/sbd1/ (hd0,0) and with fdisk -l i can see that it's an ext4 partition.

Ernatalo

Il 13/09/2010 17.26, Phil Schaffner ha scritto:

Ernatalo su Gmail wrote on 09/13/2010 06:30 AM:

...

Hi to all, i have a server with Centos 5.5 - 64 bit and i done 3 maounths ago filesystem update from ext3 to ext4. All things worked fine behind today. Today i done centos upgrade and now i'heve only GRUB Prompt.

Can you help me me to strat the sterver without lose nothing?

Did you convert /boot to ext4? If so, you may need to either convert back to ext3 or find a version of GRUB that understands ext4. Even if /boot is on ext3 there may be problems if root is on ext4 and mkinitrd is run without the "--with=ext4" switch.

Have you tried booting from installation media in rescue mode?

Phil _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Theo Band wrote:

On 09/13/10 17:48, Ernatalo su Gmail wrote:

...

i know that this is a good thing, but i've only 1 partition. /boot and /root are in the same partition that i convert from ext3 ti ext4. everything works fine until this morning. I "rebooted" the server many time from the "convertion" but i had never upgrade the Centos before today. with the update the trouble begun! from Installation DVD i can see the /dev/sbd1/ (hd0,0) and with fdisk -l i can see that it's an ext4 partition.

Nothing to worry if you can still mount the disk while booting from the DVD. From the grub shell you can also issue a find command (find /boot/grub/grub.conf). Perhaps the disk is mixed up and it is now hd1 and hd0 is you external drive?

(hd1,0)/boot/grub/grub.conf

If you start typing "(hd" and then use command completion, you will see which drives are seen by grub like hd0 or hd1 etc, and what partitions exist).

root(hd1) configfile /boot/grub/grub.conf will get you back to the boot menu. (It's all from my head, so mind some typos)

What he said. Also, note that filename completion is enabled in the grub shell, so if you type root (hd0,0) then try kernel /vm<tab> and don't get anything, try root (hd0,1) or 2, or root (hd1,0) etc, until you get a completion. At that point, you'll know what your root disk is (hd0, or 1, or whatever). Once you boot up and have a running system again, run $ grub-install /dev/<whateveryour/bootdrive is), like $grub-install /dev/sda

Quirk: regardless of what it is, /boot/grub/grub.conf seems to see the physical drive /boot is on as (hd0)... and don't confuse, say, /dev/sda1 with grub's (hd0,1): two different nomenclatures.

mark