The invisible hard drive...

[dHarryBear]

Just installed another hard drive on my old Pentium II system ( Dell M/B ) but Linux ( rh9 ) doesn't see it as hdc, although the BIOS sees it and gives no error message. hda is a 6Gig Maxtor, hdb is a 120G WD, and hdc, now, is a 4G WD. hdd is the dvd/CDrom. Tried booting into Win98SE, and that OS doesn't 'see'' it either..any thoughts? The drive itself is fine and is recognized by a WD disk formatting utility in its present location as hdc. I installed it as hda, and booted with it, and it worked fine. Curioser and curioser! Is it a hardware problem, or OSs?

[Mado]

Not formatted?

If it's not formatted as Fat32/16 it's not going to show up in Windows98. Likewise, I don't think it'll show up in Linux as an formatted drive, but I'm not sure.

If it is formatted then I'm not really sure why it wouldn't be showing up.

[Dolda2000]

Linux doesn't care if it's formatted or not - it will still be accessible as hdc.

dHarryBear, can you check the output of this command?

for hd in a b c d; do echo $hd; cat /proc/ide/hd$hd/model; cat /proc/ide/hd$hd/driver; done

Also, are you absolutely sure that you set the master/slave setting correctly on the driver?

[dHarryBear]

Here's the output-does it tell you anything? As for the jumpers, yes, I'm sure that they are correct, especially since the BIOS sees all the drives.

a
cat: /proc/ide/hd: No such file or directory
ide-disk version 1.17
b
cat: /proc/ide/hd: No such file or directory
ide-disk version 1.17
c
cat: /proc/ide/hd: No such file or directory
(none)
d
cat: /proc/ide/hd: No such file or directory
ide-cdrom version 4.59

It, too, says "(none)"...? I'll re-boot from the WD disc , and try it again. Should I alter/install something regarding the /proc/ide/hd file?

[Dolda2000]

That it says `(none)' is actually a relatively good sign. It means that it has found the drive but not assigned any driver to it. Could you post the output of the following (right after rebooting)?

dmesg | egrep 'ide|hd.'

[dHarryBear]

[root@x1-6-00-0c-"xx"-"xx"-"xx"-"xx" root]# dmesg | egrep 'ide | hd. ' (..pls. excuse my paraoid'ya)...

ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
8K byte-wide RAM 5:3 Rx:Tx split, autoselect/Autonegotiate interface.
[root@x1-6-00-0c-phumpht'a"-c1 root]#

......talk it t'me...

...?!?

[Dolda2000]

You weren't supposed to put those spaces inside the regexp to egrep... It hides all the relevant results.

[dHarryBear]

You've lost me... w h u u t ...!!!/??!?

[lordnothing]

you should have typed *exactly* what dolda said.. no extra spaces anywhere.. so it's actually:

dmesg|egrep 'ide|hd'

no spaces in the 'ide|hd' part...

[dHarryBear]

BIOS-provided physical RAM map:
Kernel command line: auto BOOT_IMAGE=linux ro BOOT_FILE=/boot/vmlinuz-2.4.20-8 hdc=ide-scsi root=LABEL=/
ide_setup: hdc=ide-scsi
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hdaMA, hdbMA
ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdcMA, hddMA
hda: Maxtor 90645D3, ATA DISK drive
hdb: WDC WD1200JB-32EVA0, ATA DISK drive
hdc: WDC AC14300R, ATA DISK drive
hdd: TOSHIBA DVD-ROM SD-R1312, ATAPI CD/DVD-ROM drive
ide2: ports already in use, skipping probe
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: host protected area => 1
hda: 12594960 sectors (6449 MB) w/512KiB Cache, CHS=784/255/63, UDMA(33)
hdb: host protected area => 1
hdb: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=14593/255/63, UDMA(33)
ide-floppy driver 0.99.newide
hda: hda1 hda2 hda3 < hda5 > hda4
hdb: hdb1 hdb2 < hdb5 hdb6 hdb7 hdb8 hdb9 hdb10 hdb11 >
ide-floppy driver 0.99.newide

================================

OK! So the LINUX 'BIOS" ( for want of the correct term...Linux kernel? ) sees it, too, then...?

It might be of some help for me to tell you that I originally had my DVD/CDrom set up as the only drive secondary ( master, not CS ), but now it is the slave to the WD14300' as master...

I can see that I need to change something, here..?

-dHarryBear