On 2021/04/13 22:24, Oliver Neukum wrote:
I have worse cases for you. / can be on LVM. The assumption that a block cannot move without FS action is just not right.
Hey, many tell folks that boot should be a normal disk. Encrypted and raids...tend to be less well supported. That's told to most people and some of them try to read their ramdisk from an LVM partition. But haven't ever heard of them moving things around after copying the ram disk there. They might, I admit, but if they want to boot they probably shouldn't be moving around things needed for boot unless they know it doesn't matter. Like me booting off my RAID -- no prob. The BIOS and the OS see the device as a single disk. So it would work for encryption RAID or LVM. Also, SuSE set that partition up to be excluded from xfs_fsr -- and since nothing is on that partition except the kernel, once it is built+installed, lilo rereads where everything is. If it was on another disk that is regularly read/written, yeah, it might get moved. So you remind us well, why one should keep boot on its own partition.