On Wed, 2024-01-31 at 06:33 +0100, to...@tuxteam.de wrote: > On Tue, Jan 30, 2024 at 09:47:35PM +0100, hw wrote: > > On Mon, 2024-01-29 at 18:41 +0100, to...@tuxteam.de wrote: > > > On Mon, Jan 29, 2024 at 05:52:38PM +0100, hw wrote: > > > > > > [...] > > > > > > > Ok in that case, hardware RAID is a requirement for machines with UEFI > > > > BIOS since otherwise their reliability is insufficient. > > > > > > The price you pay for hardware RAID is that you need a compatible > > > controller > > > if you take your disks elsewhere (e.g. because your controller dies). > > > > How often do you take the system disks from one machine to another, > > and how often will the RAID controller fail? > > > > > With (Linux) software RAID you just need another Linux... > > > > How's that supposed to help? The machine still won't boot if the disk > > with the UEFI partition has failed. > > We are talking about getting out of a catastrophic event. In such cases, > booting is the smallest of problems: use your favourite rescue medium > with a kernel which understands your RAID (and possibly other details > of your storage setup, file systems, LUKS, whatever).
Try to do that with a remote machine. > [...] > > > Maybe the problem needs to be fixed in all the UEFI BIOSs. I don't > > think it'll happen, though. > > This still makes sense if you want a hands-off recovery (think data > centre far away). Still you won't recover from a broken motherboard. It would make sense that all the UEFI BIOSs would be fixed so that they do not create this problem in the first place like they shouldn't. You seem to forget the point that one reason for using redundant storage, like some kind of RAID, to boot from, is that I don't want to have booting issues, especially not with remote machines. Unfortunately UEFI BIOSs make that difficult unless you use hardware raid. And I don't want to have that problem with local machines either because it's a really nasty problem. How do you even restore the UEFI partition when the disk it's on has failed and you don't have a copy?
