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    SubjectRe: initrd and NFS
    Jon Peatfield wrote:
    > If the change_root code were altered to take an already mounted
    > file-system, (rather than just a device number pushed by magic), then
    > NFSroot could be done by an initrd which mounts the filesystem (from
    > userland) and then signals the kernel to do the change.

    This is a brilliant idea that takes the initrd design exactly to the
    point where it should go. We can also get rid of plenty of odd stuff
    in /proc/sys with that.

    This may actually be the right time to digest the experience people
    had so far with initrd. I think the basic concept is fine, but there
    might be room for improvements in the "care and feeding" section,

    - "on the fly" updates: not mainly an initrd issue, but if the
    underlying file system is able to grow, hard disk-based initrds
    would become easier to maintain. (The general goal is to keep
    initrd as small as possible.)
    - shared libraries: I think it would be great if we had some means
    to generate a customized libc without recompiling, e.g. scan all
    the executables for symbols, then copy the relevant modules from
    the system's libc to a new, smaller libc. Right now, it's either
    static linking or a lot of guesswork (and hours of libc
    recompilation). Does this sound feasible ?

    Are there any other problems initrd users have experienced ?

    - Werner

    / Werner Almesberger, DI-LRC,EPFL,CH /

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      Last update: 2005-03-22 13:39    [W:0.018 / U:9.228 seconds]
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