CD-RW changes all to root

[Michael R. Head]

On Fri, 2007-12-14 at 13:06 -0800, NoOp wrote:
> Been awhile since I burned files to a CD-RW, but today I tried Nautilus
> CD Burner, GnomeBaker & K3b and while the files write to the CD just
> fine, all permissions on the CD get changed to root. CD, folders,
> files... everything to root. Any ideas on why this might be happening?

I don't believe the iso9660 spec has any support for ownership or
permissions, and they certainly don't match up with unix accounts. 

There is the "Rock Ridge" extension[1], but I don't think that's in use
by default, since it could make the disc less compatible with other OSs.

You might look to Xcdroast or another more complete burning utility if
you really want to put ownership info onto the disc.

[1] http://en.wikipedia.org/wiki/Rock_Ridge

> Output of info likely to be asked by folks who know what they are doing:
> 
> $ ls -alF /dev/sd* /dev/scd* /dev/sg* ~
> brw-rw----  1 root  cdrom   11,  0 2007-12-14 00:47 /dev/scd0
> brw-rw----  1 root  cdrom   11,  1 2007-12-14 00:47 /dev/scd1
> brw-rw----  1 root  disk     8,  0 2007-12-14 00:47 /dev/sda
> brw-rw----  1 root  disk     8,  1 2007-12-14 08:48 /dev/sda1
> brw-rw----  1 root  disk     8,  2 2007-12-14 00:47 /dev/sda2
> brw-rw----  1 root  disk     8,  5 2007-12-14 00:47 /dev/sda5
> brw-rw----  1 root  disk     8, 16 2007-12-14 00:47 /dev/sdb
> brw-rw----  1 root  disk     8, 17 2007-12-14 00:47 /dev/sdb1
> brw-rw----  1 root  disk     8, 18 2007-12-14 00:47 /dev/sdb2
> crw-rw----  1 root  scanner 21,  0 2007-12-14 00:47 /dev/sg0
> crw-rw----  1 root  root    21,  1 2007-12-14 00:47 /dev/sg1
> crw-rw----  1 root  root    21,  2 2007-12-14 00:47 /dev/sg2
> crw-rw----  1 root  cdrom   21,  3 2007-12-14 00:47 /dev/sg3
> crw-rw----  1 root  cdrom   21,  4 2007-12-14 00:47 /dev/sg4
> 
> $ ls -alF /dev/cd*
> lrwxrwxrwx 1 root root 4 2007-12-14 08:48 /dev/cdrom -> scd0
> lrwxrwxrwx 1 root root 4 2007-12-14 08:48 /dev/cdrom1 -> scd1
> lrwxrwxrwx 1 root root 4 2007-12-14 08:48 /dev/cdrw -> scd0
> 
> $ id -a
> uid=1000(gg2xp) gid=1000(gg2xp)
> groups=0(root),4(adm),20(dialout),21(fax),24(cdrom),25(floppy),
> 26(tape),29(audio),30(dip),44(video),46(plugdev),104(scanner),
> 112(netdev),113(lpadmin),115(powerdev),117(admin),119(fuse),
> 1000(gg2xp)
> 
> $ sudo adduser gg2xp cdrom
> The user `gg2xp' is already a member of `cdrom'.
> 
> fstab:
> /dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0
> 
> lshw:
> *-cdrom:0
>                 description: DVD-RAM writer
>                 product: DVD DC DQ60
>                 vendor: BENQ
>                 physical id: 2
>                 bus info: scsi at 2:0.0.0
>                 logical name: /dev/cdrom
>                 logical name: /dev/dvd
>                 logical name: /dev/scd0
>                 logical name: /dev/sr0
>                 version: MRCC
>                 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
>                 configuration: ansiversion=5 status=open
> 
> Note: I can erase and reburn the CD-RW from GnomeBaker. Current files on
> the CD now are:
> 
> :/media/cdrom0$ ls -l
> total 4
> dr-xr-xr-x 5 root root 2048 2007-12-14 10:29 OOo231
> dr-xr-xr-x 3 root root 2048 2007-12-14 10:29 OOoDemo
> 
> and /media:
> /media$ ls -l
> total 30
> lrwxrwxrwx 1 root root    6 2007-08-18 10:39 cdrom -> cdrom0
> dr-xr-xr-x 4 root root 2048 2007-12-14 10:29 cdrom0
> drwxrwxrwx 2 root root 4096 2007-10-30 12:43 cdrom1
> drwxrwxrwx 1 root root 4096 2007-11-29 17:17 disk
> drwxr-xr-x 2 root root 4096 2007-08-22 18:56 drive2
> lrwxrwxrwx 1 root root    7 2007-08-18 10:39 floppy -> floppy0
> drwxr-xr-x 2 root root 4096 2007-08-18 10:39 floppy0
> drwxrwxrwx 1 root root 8192 2007-12-04 21:31 windows
> drwxr-xr-x 2 root root 4096 2007-08-23 18:09 xfs
> 
> 
> 
-- 
Michael R. Head <burner at suppressingfire.org>
http://picasaweb.google.com/demiri.head.wedding
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