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    SubjectRe: [BusyBox] [Fwd: Loopback device setup?]
    Thanks to all who responded.  I have a 2.4.20 kernel so mounting on the 
    tmpfs is not supported. I have found an alternative by using the ram
    device nodes for storage.

    Thanks again,


    Hugh Dickins wrote:
    > On Tue, 17 Feb 2004, vda wrote:
    >>On Tuesday 17 February 2004 02:20, Tom Guilliams wrote:
    >>>in /driver/block/loop.c -
    >>> /*
    >>> * If we can't read - sorry. If we only can't write -
    >>> * well, it's going to be read-only.
    >>> */
    >>> if (!aops->readpage)
    >>> goto out_putf;
    >>>I confirmed the "if (!aops->readpage)" is true. I'm not sure what the
    >>>readpage routine is trying to do (which dev or file) in my command below -
    >>># mount -t ext2 -o loop ramdisk.image rootfs
    >>>Anyone have any thoughts?? This is all being done in the /tmp
    >>>dircectory which is mounted as "tmpfs". Not sure if that has anything
    >>>to do with it.
    >>I recall that tmpfs cannot do readpage (by design?).
    >>CCing LKML, maybe someone will pour in more info.
    > readpage is not straightforward for tmpfs, so it took a long time
    > to be added, but tmpfs has supported loop since 2.4.22 and 2.5.45.
    > Hugh
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