Our file server has an IDE CD-RW. Recently I replaced the stock Red Hat
7 kernel, using 2.2.18 with SCSI emulation turned on, with hopes of
being able to use the CD-RW under cdrecord.
Well, the new kernel appears to have broken CD-ROM support altogether:
[root@fs2 /root]# mount /mnt/cdrom
mount: the kernel does not recognize /dev/cdrom as a block device
(maybe `insmod driver'?)
I _thought_ that I had turned on all the options that I need in order to
enable the CD-ROM, I've done this a bunch of times before, looks to me
like all the right modules are there. Pruned output of 'lsmod':
ide-probe 6608 0 (autoclean)
ide-cd 24192 0
ide-disk 6224 0
ide-scsi 7424 0
sg 15648 0 (unused)
cdrom 27168 0 [ide-cd]
ide-mod 36160 0 (autoclean) [ide-probe ide-cd ide-disk
ide-scsi]
isofs 16864 0 (autoclean) (unused)
So what might be missing from that list? The CD that's in it has not
moved from the tray since the last runtime, during which it was mounted
and accessible.
Here's an excerpt from dmesg:
PCI_IDE: unknown IDE controller on PCI bus 00 device 79, VID=1166,
DID=0211
PCI_IDE: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio, hdd:pio
hda: PLEXTOR CD-R PX-W1210A, ATAPI CDROM drive
hdc: IRQ probe failed (0)
hdc: IRQ probe failed (0)
hdd: IRQ probe failed (0)
hdd: IRQ probe failed (0)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: ATAPI 32X CD-ROM CD-R/RW drive, 2048kB Cache
Uniform CD-ROM driver Revision: 3.11
...all looks good to me...
I'm stumped.
Might the device naming have changed when I enabled SCSI emulation?
I do have this in lilo.conf:
append="hda=ide-scsi"
Anyhow. Thanks for any suggestions, knowing me I'll realize that I've
done something dumb as soon as I send this. ;)
--
~~~Michael Jinks, IB // Technical Entity // Saecos Corporation~~~~
"We've done our best, but you're still hosed." -- W. Stearns, ISTS
Opinions expressed above are my own, and not those of my computer.
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