Re: 2.4.1ac17 hang on mounting loopback fs

From: Pete Toscano (pete.lkml@toscano.org)
Date: Sat Feb 17 2001 - 19:19:30 EST

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    hmmm... I've been trying to play with GRUB on my 2.4.2-pre4 system. For
    safety's sake, I wanted to make a bookdisk with mkbootdisk. After
    reading this, I see now why mkbootdisk was locking in the D state with
    the loop mounted... Would this also explain not being able to seek
    forward while writing a floppy?

    I was trying to make the GRUB boot disk by writing the stage 1 and 2
    loaders to the floppy (as per the GRUB docs) with dd:

    [root@bubba grub]# dd of=/dev/fd0 if=stage1 bs=512 count=1
    1+0 records in
    1+0 records out
    [root@bubba grub]# dd of=/dev/fd0 if=stage2 bs=512 seek=1
    dd: advancing past 1 blocks in output file `/dev/fd0': Permission denied

    With 2.4.1, I get a different error message, but, AFAICT, the same
    result.

    pete

    Alan Cox writes:
    > > # mount -t ext2 -o loop /spare/i486-linuxaout.img /spare/mnt
    > > loop: enabling 8 loop devices
    >
    > Loop does not currently work in 2.4. It might partly work by luck
    > but thats it. This will change as and when the new loop patches go
    > in. Until then if you need loop use 2.2



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