k...@aspodata.se wrote on 16.11.18 20:45: > Urban: [...] >> Most, if not all, contemporary Linux based operating systems should be >> able to boot just fine without resorting to any kind of initramfs mechanism, >> provided all the essential bits are located in the root-fs, and the kernel >> has all the drivers necessary to access said root-fs compiled in. > > You will have problems doing that when the boot fs is on a partition on > a md-raid partition and probably when the boot fs is somewhere on a lvm > thing. At least you'd have the problem of telling the kernel where the > root fs is that has dynamic device numbers and must be assembled or > something before the rootfs is available. > > Booting from a md-raid with v0.90 metadata can be done though, since > theese can be autodetected by the kernel, and the same is valid for > nfs-booting; though the kernel devs. seems to view that as a hack and > points to initrd as the solution.
You are correct. I oversimplified a bit, the reason being that scenarios like the one you just outlined won't be affected by /usr being merged or not, which is what the original subject of the thread was about. Regards, Urban -- Sapere aude!
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