F7 Help

[antonio montagnani]

2007/7/25, antonio montagnani <antonio.montagnani at gmail.com>:
> 2007/7/25, Mikkel L. Ellertson <mikkel at infinity-ltd.com>:
> > 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!
> >
> >
> > --
> > fedora-list mailing list
> > fedora-list at redhat.com
> > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
> >
> >
> Dispositivo Boot      Start         End      Blocks   Id  System
> /dev/sdb1   *           1          13      104391   83  Linux
> /dev/sdb2              14       19457   156183930   8e  Linux LVM
> [root at Casa ~]#
>  and then??? tnx for help... (any way I am learning, but I have all backups !!)
>
> --
> Antonio Montagnani
> Skype : antoniomontag
>
I made a desperate try :-)
I inserted the original Fedora DVD and I told to upgrade an existing
installation (that was found): in two secnds work was completed, I
rebooted and it works!!!!

Kind of magic: any explanation????

-- 
Antonio Montagnani
Skype : antoniomontag