antonio montagnani wrote:
> I was running F7 on an external USB disk.
> I powerd off the hard dik during operation, and now I can see only the
> /boot partition and of course I cannot start the PC.
>
> How can I recover the situation??? I mena without re-installing???
The first step is to find out what the damage is. I normally boot
from a live CD, or the install CD in the rescue mode. From there,
the next step is to run "fdisk -l /dev/sdx" where x is the letter
for the USB drive. This will let you see what partitions you have.
If the partition table is messed up, then you have to fix that
before trying anything else.
If the partitions are all there, then the next step is to check the
partitions. You can run fschk on the /boot partition to see if it is
correct. If you are using lvm, then checking the other partitions
gets a bit more complicated. Because you can still read /boot, I
would read /boot/grub/grub.conf and see what volume group the root
partition is on. You should see something like:
title Fedora Core (2.6.20-1.2962.fc6)
root (hd0,0)
kernel /vmlinuz-2.6.20-1.2962.fc6 ro
root=/dev/VolGroup00/LogVol00 rhgb quiet
This tells me that the root file system is on Volume Group 0,
Logical Volume 0, so I know that there is at least one Volume Group,
and it has at least one Logical Volume. I also know their names.
I am not that good with lvm yet, so I usually work with the LVM man
pages open in one VT, and work in the other to diagnose the
problems. Hopefully someone that is better with LVM will post how to
check/repair LVM problems. If not, and you determine that it is a
LVM problem, I will do my best to walk you through it...
I have found the SystemRescue CD handy for doing this type of work...
http://www.sysresccd.org/Main_Page
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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