----- Original Message ----- From: Tim <ignored_mailbox@xxxxxxxxxxxx> Date: Saturday, December 30, 2006 12:14 pm Subject: Re: Can't boot after upgrade to FC6 To: For users of Fedora <fedora-list@xxxxxxxxxx> > On Fri, 2006-12-29 at 16:29 -0500, zephod@xxxxxxxxxx wrote: > > The upgrade from FC5 to FC6 appeared to go OK at first and I was > able > > to log in and do a package update which had no problems. However > after > > I installed xen I can no longer boot; the system just reboots. > > I wonder if you replaced a non-Xen kernel with a Xen one, rather than > installing it as an additional kernel? > I tried with several different kernels but get the same result. > > After some investigation I found that when I boot from the DVD > in > > rescue mode and run grub from the command line I get this: > > > > # grub > > grub> root (hd0,0) > > Filesystem type unknown, partition type 0x7 > > > > The file /boot/device.map contains: > > (hd0) /dev/hdi > > (hd1) /dev/sda > > > > hd1 is my Windows disk. > > Perhaps your map file doesn't really show what's considered hd0 > and hd1. > Try issuing root (hd1,0), and see what difference it makes. You can > just type in (hd and hit the tab key, you'll get auto-complete options > from what's available. > > If something considers the order of the drives to be different, > they'llcount the other way around. # grub grub> root (<TAB> grub> root (hd0, Entering 0 gives me the "Filesystem type unknown..." error, entering any other number gives me a "disk not found" error. I tried root (hd1,0) but this doesn't work either. If I try the auto completion with a kernel command, I get this: # grub grub> kernel /vmlin<TAB> Error 17: Cannot mount selected partition. I am guessing this is because the root command fails. Steve.