[ltp] T23, Redhat 7.3 & ultrabay drive

Tino Keitel linux-thinkpad@linux-thinkpad.org
Wed, 13 Nov 2002 11:39:15 +0100


On Tue, Nov 12, 2002 at 16:04:19 -0300, Tim Abbott wrote:
> 
> I have recently installed Redhat 7.3 on my T23, including an update to
> Kernel 2.4.18-17.7.x.  I want to use an ultrabay disk as the data disk
> on this system and retain as much as possible of the internal drive for
> WinXP.  However, Redhat refuses to recognise the removable disk.  It is
> recognised during the boot sequence as drive hdc, but does not appear
> in /etc/fstab, /etc/mtab or on '/sbin/sfdisk -l'.  dmesg does complain
> that it has no driver. 

1. You have to edit fstab yourself to have an entry for hdc.

2. It will only appear in /etc/mtab if you mount it.

3. If you dont't have a partition table on hdc, I presume that sfdisk
   won't display anything.

> dmesg gives:
> 
>     ide0: BM-DMA at 0x1860-0x1867, BIOS settings: hda:DMA, hdb:pio
>     ide1: BM-DMA at 0x1868-0x186f, BIOS settings: hdc:DMA, hdd:pio
> hda: IC25T048ATDA05-0, ATA DISK drive
> hdc: IC25T060ATCS05-0, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> blk: queue c0385f84, I/O limit 4095Mb (mask 0xffffffff)
> blk: queue c0385f84, I/O limit 4095Mb (mask 0xffffffff)

This looks good.

> hda: 93759120 sectors (48005 MB) w/1806KiB Cache, CHS=6201/240/63, UDMA(100)
> ide-floppy driver 0.99.newide
> Partition check:
>  hda: hda1 hda2 hda3 < hda5 hda6 hda7 hda8 >

It looks like you have not created a partition table and some partitons
on your hdc drive, this is why the Kernel doesn't report anything about
partitions on hdc, sounds logical, doesn't it? :-)

> and no other reference to hdc except later on:
> 
> ide-floppy driver 0.99.newide
> hdc: driver not present
> ide-floppy driver 0.99.newide
> hdc: driver not present

I think this is only a debug message from some auto mounter stuff or
things like that.

[...]

-- 
tino.keitel@innominate.com
dipl.-inf.                        Innominate Security Technologies AG
software engineer                                   networking people
tel: +49.30.6392-3308                      http://www.innominate.com/