peekaboo IDE CD-ROM

peekaboo IDE CD-ROM

Post by Christopher Hugh » Sun, 28 May 1995 04:00:00



I am using a generic IDE CD-ROM, jumpered as master, on a secondary IDE
interface. Linux detected it nicely on /dev/hd1a, added it to /etc/mtab,
and I could even mount it and look at the files on a cd in the drive.

then I rebooted.

the entry was for it in mtab was gone. the slackware setup, in the
configure section, could no longer detect it in hardware.

I have checked hardware inside the box, and it does not appear to be a
case of loose cabling; dos still recognizes it just fine.

Does anyone have any ideas, or suggestions on where to start? This one has
me baffled.

                                                        --topher
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peekaboo IDE CD-ROM

Post by Jesper de Jon » Tue, 30 May 1995 04:00:00



Quote:

> I am using a generic IDE CD-ROM, jumpered as master, on a secondary IDE
> interface. Linux detected it nicely on /dev/hd1a, added it to /etc/mtab,
> and I could even mount it and look at the files on a cd in the drive.

> then I rebooted.

> the entry was for it in mtab was gone. the slackware setup, in the
> configure section, could no longer detect it in hardware.

> I have checked hardware inside the box, and it does not appear to be a
> case of loose cabling; dos still recognizes it just fine.

> Does anyone have any ideas, or suggestions on where to start? This one has
> me baffled.

You should put it in /etc/fstab, not in /etc/mtab. The file mtab contains
only the file systems mounted on the moment you look at it. You shouldn't
edit it, the mount and umount commands write and read this file.

Greetings,   Jesper.

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1. Upgrading to SCSI CD-ROM from IDE CD-ROM

Hello, I just upgraded my system from an old IDE CD-ROM to a UltraPlex
14/32 and a RICOH 6201S [I think that's the number] 6R2W CD-ReWriter.
The problem is that I can no longer see a CD-ROM.  Can someone show a
fool what possible mistakes he might have made?

System:
Dual PP166/512 in a SuperMicro P6DNE, 192MB of EDO RAM (32MB x 6);
Seagate Barracuda (4G)          at SCSI ID #1   [/dev/sda]
Seagate Hawk 2 (2G)             at SCSI ID #2   [/dev/sdb]
Plextor Ultra 14/32 CD-ROM      at SCSI ID #3   [not clear which dev]
Ricoh 6201S CD ReWriter         at SCSI ID #4   [not clear which dev]
Fujitsu 230 MB MO drive         at SCSI ID #6   [/dev/sdc]
old Adaptec 2940 SCSI card      at SCSI ID #7
cheap SB compatible sound card
D-Link DE220 ISA NE2000 clone
Matrox Millenium 8 MB (original)

System:         Red Hat 4.2 [afraid to touch 5.0] set up with the old
                IDE/ATAPI CD-ROM in place of the newer CD drives.

Symptoms:       Cannot read either CD drive.  When trying to mount either
                /dev/scd0 or /dev/scd1, get a not ready error saying that
                either superblock is bad or drive is empty.

Other data: the system minus the motherboard has been in use continuously
        since Jan 96, until the CD-ROM upgrade.  Both the Ricoh and the
        ultra Plex is detected at boot time as sr0 and sr1 [but not as
        scd0 or scd1] ... A kernel was compiled with the SCSI CD-ROM and
        generic support.

Any comments, as well as helpful hints on how to get CD-writing going if
and when I fix this, will be welcome.  E-mails tips welcome!

--
| "A tyro might just have a case for not wanting to face strange methods; |
|  for a self-professed expert to whine about not being able to deal with |
|  innovations would be, at the very least, unbecoming." -Ralph Hirshberg |

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