Re: CD not recognised by udev

[karaluh <karaluh@tlen.pl>]

Dnia środa 07 luty 2007, Kay Sievers napisał:
> > > > > As already pointed out, udev doesn't care about optical drives,
> > > > > because they need to be polled to get notifications about a media
> > > > > change. Anyway, HAL depends on detecting a filesystem prior to a
> > > > > possible mount. This is provided by libvolume_id. What does:
> > > > >   /lib/udev/vol_id --export /dev/XXX
> > > > > print?
> > > > It doesn't print anything. It's the same for automountable cd.
> > > Huh, it doesn't even print an error?
> > I was suprised too. For one moment I thought something's wrong with the
> > vol_id, but when I execute the above command with no cd in drive I get
> > /dev/hdb: error open volume
> > which is ok I suppose. And no matter what cd is in (the problematic or a
> > regular one) I get no info from vol_id. I don't know if that's normal. I
> > even tried -t -l -u switches, but without result.
> Ok, it's not recognized as anything. What does:
>   dd if=/dev/sr0 bs=1 skip2768 count@96 | hexdump -C
> print?

I suppose you ment:
dd if=/dev/hda bs=1 skip2768 count@96 | hexdump -C
In that case it prints:
00000000  01 43 44 30 30 31 01 00  20 20 20 20 20 20 20 20  |.CD001..        |
00000010  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000020  20 20 20 20 20 20 20 20  44 57 32 43 44 31 5f 45  |        DW2CD1_E|
00000030  4e 47 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |NG              |
00000040  20 20 20 20 20 20 20 20  00 00 00 00 00 00 00 00  |        ........|
00000050  85 bf 04 00 00 04 bf 85  00 00 00 00 00 00 00 00  |................|
00000060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000070  00 00 00 00 00 00 00 00  01 00 00 01 01 00 00 01  |................|
00000080  00 08 08 00 56 01 00 00  00 00 01 56 12 00 00 00  |....V......V....|
00000090  13 00 00 00 00 00 00 14  00 00 00 15 22 00 16 00  |............"...|
000000a0  00 00 00 00 00 16 00 10  00 00 00 00 10 00 60 0b  |..............`.|
000000b0  08 12 0d 20 24 02 00 00  01 00 00 01 01 00 20 20  |... $.........  |
000000c0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000320  20 20 20 20 20 20 20 20  20 20 20 20 20 31 39 39  |             199|
00000330  36 31 31 30 38 31 38 31  33 33 32 30 30 24 30 30  |6110818133200$00|
00000340  30 30 30 30 30 30 30 30  30 30 30 30 30 30 00 30  |00000000000000.0|
00000350  30 30 30 30 30 30 30 30  30 30 30 30 30 30 30 00  |000000000000000.|
00000360  30 30 30 30 30 30 30 30  30 30 30 30 30 30 30 30  |0000000000000000|
00000370  00 01 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000380  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000400  43 44 2d 58 41 30 30 31  00 00 00 00 00 00 00 00  |CD-XA001........|
00000410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000800  ff 43 44 30 30 31 01 00  00 00 00 00 00 00 00 00  |.CD001..........|
00000810  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
4096+0 przeczytanych recordów
4096+0 zapisanych recordów
skopiowane 4096 bajtów (4,1 kB), 0,017088 sekund, 240 kB/s
00001000
-- 
Best regards,
karaluh



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