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