On Tue, 2008-03-25 at 10:07 -0500, Les Mikesell wrote: > There was a point in mid-FC5 where an update kernel would not boot on an > IBM Xseries 225 (fairly mainstream dual-xeon boxes, I thought) without > doing a motherboard bios update - after which the older kernels wouldn't > boot. And of course there were no warnings about this or much of a > reason to expect it to work after doing the bios flash either. And > there have been several updates that failed to boot on popular Dell and > IBM MPT scsi controllers - even one late into FC6 which was otherwise > pretty stable. I'm not arguing that it doesn't happen. I've experienced a few. The original post was directed to a fellow who wants to run a home server on his desktop. And, I haven't seen anything yet that would cause more than a few minutes downtime while switching to the backup partition after noticing the problem. Now, if we're talking a system that's handling financial transactions that has to be available 24/7, then it's another situation entirely. I've been in shops like that, and am aware of the practices necessary to sustain that. I don't, however, need a disaster recovery plan with a hot backup site for my video and music collection. Dave
