I am planning on doing kernel upgrades tonight starting at 11pm.  If things go well they may be concluded by 11:30, if they go like last time might be 2:30, hopefully not.

     There has been problems with grub configuration being properly updated by the automatic kernel installer lately and when it fails it does so silently so I don’t know it’s failed until I try to boot and it doesn’t.  Most of the time this only affects the virtual machines but last time it affected one of the physical hosts requiring a drive to the co-location facility.

     So, probably facilities will be mostly usable by 11:30PM, there are generally one or two servers that don’t properly bind NIS or mount NFS and it takes me about another half hour to go through and resolve those but there is the potential for a physical host to have grub issues like last time so please don’t plan anything critical during this interval.