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    Subjectmounting udf DVD-RAM changes owner
    I am running Redhat 8.0 plus Win4Lin 4.0.7 on a Pentium III 600Mhz with 768MB RAM, 4 SCSI hard drives, an IDE hard drive, a Panasonic LF-D201 SCSI DVD-RAM, an HP deskjet 6122, and an HP Scanjet 7450C.  The Redhat kernel is 2.4.18-14, and the Win4Lin kernel is a patched version of the Redhat kernel.  I have DVD-RAM cartridges formatted FAT32 under Windows XP, and others formatted by udftools-1.0.0b2/mkudffs.  The fstab entry of interest is

    /dev/scd0 /mnt/dvd auto noauto,users,kudzu,rw,exec,uid=Tom,umask=000 0 0

    Before I mount a udf cartridge, I get

    [Tom@localhost Tom]$ ls -l /mnt
    ...
    drwxr-xr-x 2 Tom root 4096 Nov 5 11:20 dvd

    [Tom@localhost Tom]$ mount /mnt/dvd
    [Tom@localhost Tom]$ ls -l /mnt
    ...
    drwxr-xr-x 4 root root 140 Dec 6 19:13 dvd

    [Tom@localhost Tom]$ umount /mnt/dvd
    [Tom@localhost Tom]$ ls -l /mnt
    ...
    drwxr-xr-x 2 Tom root 4096 Nov 5 11:20 dvd

    If I then mount a FAT32 cartridge, I get

    [Tom@localhost Tom]$ mount /mnt/dvd
    [Tom@localhost Tom]$ ls -l /mnt
    ...
    drwxrwxrwx 3 Tom Tom 16384 Dec 31 1969 dvd
    ...
    [Tom@localhost Tom]$ mount
    ...
    /dev/scd0 on /mnt/dvd type vfat (rw,nosuid,nodev,uid=500,umask=000)


    Each time I mount a udf cartridge, I have to do su to chown it before I can write to it in user mode. Both the ownership and the permissions go back to the same root valuse, ignoring the fstab entry, until I do this. The behavior is the same for the Redhat kernel and the Win4Lin kernel.

    I can get around this problem by adding myself to the root group, I think, but changing the permissions does not help. I found no clues in the mkudffs man page or in the linux-kernel archives.

    Is there some trick for configuring to get around this problem? Is this a bug?
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