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    SubjectRe: [PATCH] driver-core: devtmpfs - driver core maintained /dev tmpfs
    Alan Jenkins wrote:
    > On 5/2/09, Kay Sievers <kay.sievers@vrfy.org> wrote:
    []
    >>> And it
    >>> gives a nice clean way for new initramfs' to test for this feature -
    >>> when they try to mount it, it fails. It would seem to make for a
    >>> rather smoother migration path.
    >> I think that is all covered just fine.
    >
    > Oh, I see.
    >
    > grep "/dev" /proc/mounts > /dev/null

    Oh no. This one will match all your /dev/sda1 etc too :)
    What yo want to do is either

    grep -w /dev /proc/mount

    or

    awk '$2 == "/dev" { exit 0; } END { exit 1; }' /proc/mounts

    or something similar. To distinguish between the following
    two cases:

    /dev/sda1 / ext3 rw,noatime,data=ordered 0 0
    devfs /dev tmpfs rw,nosuid,size=512k,mode=755 0 0

    /mjt


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