support for hfs(+)-fs on a CD
David Zeuthen
david at fubar.dk
Thu Jul 29 12:49:44 PDT 2004
On Thu, 2004-07-29 at 21:25 +0200, Kay Sievers wrote:
> On Thu, 2004-07-29 at 20:00 +0200, David Zeuthen wrote:
> > On Thu, 2004-07-29 at 05:26 +0200, Kay Sievers wrote:
> > > Here is support for recognition of hfs and hfsplus filesystems on a main
> > > block device, like a CD. Only the first partition is returned with the
> > > probe.
> > >
> >
> > Nice, this works for one of my CD-ROM with a hfsplus filesystem, but it
> > doesn't work on my recovery DVD for my Powerbook (mounting it with -t
> > hfsplus works). Hmm.. I don't think it's worth looking into support
> > multi partition and/or multi session discs until the kernel actually
> > give us a special device file for each of them.
>
> It would be nice, if we can get it into the kernel. If it's not possible
> for some reason, I still can add a partiton table parser to volume_id
> and we can create child devices in HAL with 'block.session=<number>' and
> add these to fstab.
>
I'm all for getting the kernel to export /dev/cdrom/session%d and
partitions within sessions etc, anything else would be absurd in my
opinion (I've not given it much thought though). On a related topic, I
wonder what the appropriate forum, short of linux-kernel, to raise this
would be? Some kind of desktop-kernel list would be useful.
Until that happens, just thinking out loud, a property
volume.disc.session_number might be handy. Here's one use: we install a
callout (running before update-fstab.sh) to create the
symlinks /dev/cdrom/session%d pointing at /dev/cdrom and changes
block.device to the symlink.
Now, the update-fstab.sh is called and this adds the following entries
/dev/cdrom/session1 /media/cdrom iso9660 ro,user,noauto,session=1 0 0
/dev/cdrom/session2 /media/cdrom2 iso9660 ro,user,noauto,session=2 0 0
to /etc/fstab and g-v-m or whatever can easily just mount the device
pointed to by block.device, e.g. mount /dev/cdrom/session1
However, let's try to see if this can be added to the kernel before
introducing this hack. And multi-session / multi-partition CD's are rare
anyway.
> Back to your DVD. What's in the first sessions partition table? Mine
> looks like this:
>
OK, I've pasted it below and the 10 first sectors are attached.
[david at laptop spec]$ dd if=/dev/hdd count=10 |hexdump -C
10+0 records in
10+0 records out
00000000 45 52 08 00 00 1c 84 00 00 01 00 01 00 00 00 00 |ER..............|
00000010 00 04 00 00 00 10 00 05 00 01 00 00 00 1e 00 19 |................|
00000020 ff ff 00 00 00 41 00 05 07 01 00 00 00 4f 00 1f |.....A.......O..|
00000030 f8 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000200 50 4d 00 00 00 00 00 0a 00 00 00 01 00 00 00 3f |PM.............?|
00000210 41 70 70 6c 65 00 00 00 00 00 00 00 00 00 00 00 |Apple...........|
00000220 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000230 41 70 70 6c 65 5f 70 61 72 74 69 74 69 6f 6e 5f |Apple_partition_|
00000240 6d 61 70 00 00 00 00 00 00 00 00 00 00 00 00 00 |map.............|
00000250 00 00 00 00 00 00 00 3f 00 00 00 17 00 00 00 00 |.......?........|
00000260 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000003d0 00 00 00 00 00 0b ff ff 00 00 00 00 00 00 00 00 |................|
000003e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000003f0 00 00 00 00 00 00 00 00 00 00 00 00 4d 52 4b 53 |............MRKS|
00000400 50 4d 00 00 00 00 00 0a 00 00 00 40 00 00 00 38 |PM......... at ...8|
00000410 4d 61 63 69 6e 74 6f 73 68 00 00 00 00 00 00 00 |Macintosh.......|
00000420 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000430 41 70 70 6c 65 5f 44 72 69 76 65 72 34 33 00 00 |Apple_Driver43..|
00000440 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000450 00 00 00 00 00 00 00 38 00 00 03 7f 00 00 00 00 |.......8........|
00000460 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 |..$.............|
00000470 00 00 00 00 00 00 77 08 00 00 00 00 00 00 00 00 |......w.........|
00000480 00 00 00 00 00 00 00 00 70 74 44 52 00 00 00 00 |........ptDR....|
00000490 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000005d0 00 00 00 00 00 0f ff ff 00 00 00 00 00 00 00 00 |................|
000005e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000600 50 4d 00 00 00 00 00 0a 00 00 00 78 00 00 00 8c |PM.........x....|
00000610 4d 61 63 69 6e 74 6f 73 68 00 00 00 00 00 00 00 |Macintosh.......|
00000620 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000630 41 70 70 6c 65 5f 44 72 69 76 65 72 34 33 5f 43 |Apple_Driver43_C|
00000640 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |D...............|
00000650 00 00 00 00 00 00 00 8c 00 00 03 7f 00 00 00 00 |................|
00000660 00 00 c4 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000670 00 00 00 00 00 00 ea 3d 00 00 00 00 00 00 00 00 |.......=........|
00000680 00 00 00 00 00 00 00 00 43 44 72 76 00 00 00 00 |........CDrv....|
00000690 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000007d0 00 00 00 00 00 13 ff ff 00 00 00 00 00 00 00 00 |................|
000007e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000800 50 4d 00 00 00 00 00 0a 00 00 00 00 00 00 00 00 |PM..............|
00000810 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000830 41 70 70 6c 65 5f 56 6f 69 64 00 00 00 00 00 00 |Apple_Void......|
00000840 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000a00 50 4d 00 00 00 00 00 0a 00 00 01 04 00 00 00 38 |PM.............8|
00000a10 4d 61 63 69 6e 74 6f 73 68 00 00 00 00 00 00 00 |Macintosh.......|
00000a20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000a30 41 70 70 6c 65 5f 44 72 69 76 65 72 5f 41 54 41 |Apple_Driver_ATA|
00000a40 50 49 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |PI..............|
00000a50 00 00 00 00 00 00 00 38 00 00 03 7f 00 00 00 00 |.......8........|
00000a60 00 00 26 00 00 00 00 00 00 00 00 00 00 00 00 00 |..&.............|
00000a70 00 00 00 00 00 00 67 40 00 00 00 00 00 00 00 00 |......g at ........|
00000a80 00 00 00 00 00 00 00 00 70 74 44 52 00 00 00 00 |........ptDR....|
00000a90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000bd0 00 00 00 00 00 17 ff ff 00 00 00 00 00 00 00 00 |................|
00000be0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000c00 50 4d 00 00 00 00 00 0a 00 00 01 3c 00 00 00 8c |PM.........<....|
00000c10 4d 61 63 69 6e 74 6f 73 68 00 00 00 00 00 00 00 |Macintosh.......|
00000c20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000c30 41 70 70 6c 65 5f 44 72 69 76 65 72 5f 41 54 41 |Apple_Driver_ATA|
00000c40 50 49 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |PI..............|
00000c50 00 00 00 00 00 00 00 8c 00 00 03 7f 00 00 00 00 |................|
00000c60 00 00 f2 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000c70 00 00 00 00 00 00 c1 6c 00 00 00 00 00 00 00 00 |.......l........|
00000c80 00 00 00 00 00 00 00 00 41 54 50 49 00 00 00 00 |........ATPI....|
00000c90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000dd0 00 00 00 00 00 1b ff ff 00 00 00 00 00 00 00 00 |................|
00000de0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000e00 50 4d 00 00 00 00 00 0a 00 00 01 c8 00 00 02 00 |PM..............|
00000e10 50 61 74 63 68 20 50 61 72 74 69 74 69 6f 6e 00 |Patch Partition.|
00000e20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000e30 41 70 70 6c 65 5f 50 61 74 63 68 65 73 00 00 00 |Apple_Patches...|
00000e40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000e50 00 00 00 00 00 00 02 00 00 00 00 01 00 00 00 00 |................|
00000e60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 |................|
00000e70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000fd0 00 00 00 00 00 1f ff ff 00 00 00 00 00 00 00 00 |................|
00000fe0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001000 50 4d 00 00 00 00 00 0a 00 00 00 00 00 00 00 00 |PM..............|
00001010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001030 41 70 70 6c 65 5f 56 6f 69 64 00 00 00 00 00 00 |Apple_Void......|
00001040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001200 50 4d 00 00 00 00 00 0a 00 00 03 c8 00 72 0c 30 |PM...........r.0|
00001210 4d 61 63 5f 4f 53 5f 58 00 00 00 00 00 00 00 00 |Mac_OS_X........|
00001220 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00001230 41 70 70 6c 65 5f 48 46 53 00 00 00 00 00 00 00 |Apple_HFS.......|
00001240 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00001250 00 00 00 00 00 72 0c 30 40 00 00 7f 00 00 3a f0 |.....r.0 at .....:.|
00001260 00 0c 10 00 01 c0 00 00 00 00 00 00 01 c0 0c b0 |................|
00001270 00 00 00 00 00 00 00 00 70 6f 77 65 72 70 63 00 |........powerpc.|
00001280 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001320 00 00 00 00 00 00 00 00 67 6f 6f 6e 00 00 00 00 |........goon....|
00001330 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000013d0 00 00 00 00 00 23 ff ff 00 00 00 00 00 00 00 00 |.....#..........|
000013e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00001400
Cheers,
David
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