I had a similar problem before and I solved it by start my computer using boot CD then reemerge e2fsprogs-libs and sys-fs/e2fsprogs.
Hung Maxim Wexler wrote: > Hi group, > > I ran emerge -avuDN world and came up with blocked packages which I > eliminated by un-merging device-mapper and e2fsprogs-libs. When I > rebooted was greeted by a maintenance console and the message > "libblkid.so.1 cannot open shared object file". A little googling > later I realized that e2fsprogs-libs should not have been removed. No > problem, I'll chroot and fix it. > > After the chroot I was able to mount /dev/sda1 on /mnt/gentoo but > couldn't mount /dev/sdb2 > on /var where portage is kept on this system. The error was identical > to the original one when the pc was first rebooted: > > "mount: error while loading shared libraries: libblkid.so.1..." > > I tried to run e2fsck on /dev/sda2 but got this error msg: > > "e2fsck: error while loading shared libraries: libcom_err.so.2: cannot > open shared object file..." > > Any one see a way past this impasse? I'm using ext2 with the journal option. > > Maxim > >