* Rich Freeman schrieb am 05.08.11 um 14:42 Uhr: > On Fri, Aug 5, 2011 at 6:16 AM, Marc Schiffbauer <msch...@gentoo.org> wrote: > > * Robin H. Johnson schrieb am 05.08.11 um 02:46 Uhr: > > [...] > >> That leaves the only reasonable solution as #2. In terms of minimal > >> impact, I propose that we offer users with a static system an absolutely > >> minimal initramfs, that _just_ mounts the required directories. No > >> modules, no LVM, no MD, no crypto etc - if you want that functionality, > >> go and use genkernel or dracut. If your fstab contains a line like: > >> /dev/sdXN /usr ... > >> Then this initramfs is for you. > >> > >> The minimal initramfs would do the following. > >> > >> 1. Mount devtmpfs/sysfs/procfs as needed to access devices. > >> 2. Mount real_root to /newroot > >> 3. Read /newroot/etc/initramfs.mount and /newroot/etc/fstab > >> 4.1. If /newroot/etc/initramfs.mount does not exist > >> Assume it contains only: /usr /var > >> 5. Mount the combined items from said files > >> 6. pivot_root. > >> > > > > That sounds like a good compromise to me! > > Why would we build yet another initramfs vs just making dracut work > reliably? You can already build dracut without support for > lvm+raid+luks/etc.
If dracut will have some sort of minimalistic mode where it would generate such an initrd that would be ok IMO. OTOH the initrd that Robin described would be a very static solution with almost no dependencies, so if genkernel had a USE flag like "dracut" it would be possible to build it without dracut dependency and thus would allow for smaller systems. -Marc -- 8AAC 5F46 83B4 DB70 8317 3723 296C 6CCA 35A6 4134
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