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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


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Old 06-02-2005, 05:01 PM   #1
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Location: Hilliard, Ohio, USA
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Cannot detect CDRW drive, Kernel 2.6.9, Mitsumi drive

I'm having a bit of trouble. This is my first experience ever with CDR/CDRW drives, and I'm having difficulty getting the one I just installed to work.
A lot of the HOW-TO's, etc are suggesting that SCSI emulation is no longer required in the kernel 2.6.x series (but by the same token, they are so outdated that they all say that USB-powered CDRW drives are not supported at all), and I think that may be confirmed by my dmesg output, but upon launching GraveMan either as root or a non-priviledged user, it will not see my drive. I need some assistance in diagnosing the trouble.
Here is a bit of information that my help.
[scuzzy@slackdell /dev]$ dmesg | grep hd
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:DMA
hda: WDC WD400BB-75DEA0, ATA DISK drive
hdc: Lite-On LTN486S 48x Max, ATAPI CD/DVD-ROM drive
hdd: CR-48XFTE, ATAPI CD/DVD-ROM drive
hda: max request size: 128KiB
hda: Host Protected Area detected.
hda: 78125000 sectors (40000 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(100)
hda: cache flushes not supported
 hda: hda1 hda2 hda3
hdc: ATAPI 48X CD-ROM drive, 120kB Cache, UDMA(33)
hdd: ATAPI 54X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Adding 264592k swap on /dev/hda3.  Priority:-1 extents:1
EXT3 FS on hda2, internal journal
EXT3 FS on hda1, internal journal
[scuzzy@slackdell /dev]$
Permissions on hdc and hdd (I assume my CDROM and CDRW respectively)
[scuzzy@slackdell /dev]$ ls -l hdd hdc
brw-rw----  1 root cdrom 22,  0 2005-06-02 13:30 hdc
brw-rw----  1 root cdrom 22, 64 2005-06-02 13:30 hdd
[scuzzy@slackdell /dev]$
My fstab:
[scuzzy@slackdell /dev]$ cat /etc/fstab
/dev/hda3        swap             swap        defaults         0   0
/dev/hda2        /                ext3        defaults         1   1
/dev/hda1        /home            ext3        defaults         1   1
/dev/cdrom       /mnt/cdrom       iso9660     noauto,owner,ro  0   0
/dev/fd0         /mnt/floppy      auto        noauto,owner     0   0
devpts           /dev/pts         devpts      gid=5,mode=620   0   0
proc             /proc            proc        defaults         0   0
/dev/sda1        /jumpdrive       vfat        defaults         1   1
[scuzzy@slackdell /dev]$
And confirmation that the symlinks are where they should be:
[scuzzy@slackdell /dev]$ ls -l cdrom cdrw
lrwxrwxrwx  1 root root 3 2005-06-02 17:59 cdrom -> hdc
lrwxrwxrwx  1 root root 3 2005-06-02 17:59 cdrw -> hdd
[scuzzy@slackdell /dev]$
It looks to me as if this should work... and yet it doesn't...

Edit: Just tried a disc in the drive (CDRW) - it mounts fine and i can access it...

Last edited by scuzzman; 06-02-2005 at 05:42 PM.
Old 06-02-2005, 06:07 PM   #2
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Registered: May 2004
Location: Hilliard, Ohio, USA
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OK - now I feel like a real idiot.
I entered Graveman's configuration, and there was a "Scan for additional devices" button
I pressed it, and it now recognizes my drive.

Problem resolved.


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