Server Issue

Updating glibc of the host environment on the server seems to have broken some library dependency, causing basically everything to stop working, with the exception of processes already executing.
The weird thing about having a Linux-VServer installation is that only the root operating system is affected – all the virtual machines have their own files and aren’t affected. However, I cannot open new SSH sessions to the machine (as it runs in the root environment), and cron jobs are also likely failing (but all the interesting ones are in the guests anyway).

I need to get up early tomorrow and so cannot be bothered to boot from a CD to fix this right away, but do expect the server to be unavailable for an hour some time tomorrow (presumably late afternoon) as I perform the required recovery steps.