Re: [CentOS] lost connection during yum update

On Sun, Mar 10, 2013 at 10:45 PM, Frank Cox theatre@melvilletheatre.com wrote:

The most maddening part of this is that all of the files and the filesystems appear to be present -- I can boot off of a rescue CD and mount the whole works under /mnt/sysimage and browse to my hearts content. I just can't boot the damn thing.

How is a name like /dev/mapper/vg_ws195-lv_root rd_NO_LUKS determined? If I knew how to read or find out what the actual name of the root directory was on the problem machines, I could compare it to what's in the grub.conf file.

I don't have any idea how to debug LVM stuff. But if you can boot in rescue mode just on general principles I would chroot into /mnt/sysimage, rebuild the initrd and reinstall grub.