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SubjectRe: dvd mounting troubles
On Mon, 9 Oct 2000, Rick Haines wrote:

> It works fine in Win2k. After reading Andre's comment I think it could
> be a udf problem as well because iso9660 cd's work fine. In fact, after
> mounting an iso9660 cdr I can now mount dvd's every try.

I tend to agree that it is FS layer and not so much in the driver.
However I am using DVD-RAM ATAPI

hdparm -i /dev/hde

/dev/hde:

Model=MATSHITADVD-RAM LF-D210, FwRev=A106, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:180,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 *mdma2 udma0 udma1 udma2
Drive Supports : Reserved : ATA-4

p6dnf:/src/hdparm-4.0a # mke2fs -b 2048 -m 0 /dev/sr0
mke2fs 1.18, 11-Nov-1999 for EXT2 FS 0.5b, 95/08/09
/dev/sr0 is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=2048 (log=1)
Fragment size=2048 (log=1)
561152 inodes, 2236704 blocks
0 blocks (0.00%) reserved for the super user
First data block=0
137 block groups
16384 blocks per group, 16384 fragments per group
4096 inodes per group
Superblock backups stored on blocks:
16384, 49152, 81920, 114688, 147456, 409600, 442368, 802816, 1327104,
2048000

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

Note that this is done under ide-scsi (patched)
mount -t auto -o rw /dev/sr0 /dvdram
/dev/sr0 on /dvdram type ext2 (rw)
/dev/sr0 4402628 18 4402610 0% /dvdram
/dev/hdf 4484720 4484720 0 100% /dvdrom


Note that this is done under ide-cd (patched)
mke2fs -b 2048 -m 0 /dev/hde
mke2fs 1.18, 11-Nov-1999 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=2048 (log=1)
Fragment size=2048 (log=1)
561152 inodes, 2236704 blocks
0 blocks (0.00%) reserved for the super user
First data block=0
137 block groups
16384 blocks per group, 16384 fragments per group
4096 inodes per group
Superblock backups stored on blocks:
16384, 49152, 81920, 114688, 147456, 409600, 442368, 802816, 1327104,
2048000

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

/dev/hde 4402628 18 4402610 0% /dvdram
/dev/hdf 4484720 4484720 0 100% /dvdrom
/dev/hde on /dvdram type ext2 (rw,noexec,nosuid,nodev)
/dev/hdf on /dvdrom type iso9660 (ro,noexec,nosuid,nodev)


> Here's an unsuccessful mount (followed by a successful):
>
> Oct 9 14:09:38 sasami kernel: VFS: Disk change detected on device ide0(3,64)
<snip>
> Oct 9 14:09:40 sasami kernel: UDF-fs: No partition found (1)

If I do this under ext2 it works like a charm.
I can write just like a disk to my dvd-ram atapi.

I would tend to finger udf first now.

Cheers,

Andre Hedrick
The Linux ATA/IDE guy



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