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    Subjectnext-2008-11-28 : can't mount UDF DVD
    Hi,

    With next-2008-11-28, I was unable to mount an UDF-formatted DVD-RW:

    ~$ mount -oro -t udf /dev/sr0 /media/cdrom/
    mount: Not a directory

    There was no problem with 2.6.28-rc6.

    I made a bisection:

    33284bdf40f88160a154202510b27d983138c805 is first bad commit
    commit 33284bdf40f88160a154202510b27d983138c805
    Author: Marcin Slusarz <marcin.slusarz@gmail.com>
    Date: Sun Nov 16 20:52:19 2008 +0100

    udf: implement mode and dmode mounting options

    "dmode" allows overriding permissions of directories and
    "mode" allows overriding permissions of files.

    Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
    Cc: Jan Kara <jack@suse.cz>
    Signed-off-by: Jan Kara <jack@suse.cz>


    Indeed, with this commit, I *must* use the dmode option to mount my DVD:

    ~$ sudo mount -oro,dmode=0755 -t udf /dev/sr0 /media/cdrom/
    ~$ grep /media/cdrom /proc/mounts
    /dev/scd0 /media/cdrom udf ro,mode=177777,dmode=755,utf8 0 0
    ~$ ls -la /media/cdrom/
    total 46
    drwxr-xr-x 5 root root 344 Dec 24 2007 .
    drwxr-xr-x 12 root root 4096 Dec 1 00:17 ..
    drwxr-xr-x 2 laurent laurent 7112 Nov 30 20:14 flexbackup
    drwxr-xr-x 2 root root 40 Nov 20 2005 lost+found
    drwxr-xr-x 10 laurent laurent 4548 Nov 25 2005 patches
    ~$ ls -la /media/cdrom/flexbackup/
    total 4307946
    drwxr-xr-x 2 laurent laurent 7112 Nov 30 20:14 .
    drwxr-xr-x 5 root root 344 Dec 24 2007 ..
    ?rwsrwsrwt 1 laurent laurent 44 Oct 1 2006 00-index-key
    ...

    Althought I was able to mount it with no special option on 2.6.28-rc6:

    ~$ sudo mount -oro -t udf /dev/sr0 /media/cdrom/
    ~$ grep /media/cdrom /proc/mounts
    /dev/scd0 /media/cdrom udf ro,utf8 0 0
    ~$ ls -la /media/cdrom/
    total 46
    drwxrwxrwx 5 root root 344 2007-12-24 18:09 .
    drwxr-xr-x 12 root root 4096 2008-12-01 00:22 ..
    drwxr-x--- 2 laurent laurent 7112 2008-11-30 20:14 flexbackup
    drwxr-xr-x 2 root root 40 2005-11-20 23:37 lost+found
    drwxr-x--- 10 laurent laurent 4548 2005-11-25 18:18 patches
    ~$ ls -la /media/cdrom/flexbackup/
    total 4307946
    drwxr-x--- 2 laurent laurent 7112 2008-11-30 20:14 .
    drwxrwxrwx 5 root root 344 2007-12-24 18:09 ..
    -rw-r----- 1 laurent laurent 44 2006-10-01 15:36 00-index-key
    ...

    ~~
    laurent


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