[linux-help] Re: Can't mount cdrom

[bruce <bbales@xxxxxxx>]

On Monday 08 July 2002 08:01 pm, you wrote:
>
> Check your dmseg output to see if it says anything about the cdrom drive.
> That section of mine looks like this:
>
>     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 AC36400L, ATA DISK drive
> hdc: Pioneer CD-ROM ATAPI Model DR-A14S 0104, ATAPI CD/DVD-ROM drive
> hdd: ST3660A, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: 12594960 sectors (6449 MB) w/256KiB Cache, CHS=784/255/63, UDMA(33)
> hdd: 1065456 sectors (546 MB) w/120KiB Cache, CHS=1057/16/63, DMA
> hdc: ATAPI 32X CD-ROM drive, 128kB Cache, DMA
> Uniform CD-ROM driver Revision: 3.12

In my dmesg, hdd is correctly identified, but the second mention is left out.

    ide0: BM-DMA at 0x1000-0x1007, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0x1008-0x100f, BIOS settings: hdc:pio, hdd:DMA
hda: WDC AC11200L, ATA DISK drive
hdd: BCD E520C, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 2503872 sectors (1282 MB) w/256KiB Cache, CHS=621/64/63, DMA
ide-floppy driver 0.97

>
> I don't understand how /proc/partitions (which you mentioned) works, but
> you could look in /proc/ide which should have a directory for each ide
> device configured (hda, hdb, hdc, hdd, etc). In the directory, it has files
> that have information like the model number, the driver, etc.
>
> Greg

/proc/ide/ide1/hdd/ has five files (six in my working system) which all but 
one seem to be right.  The last file /hdd/driver says (none).  In my working 
system, a cd-rom driver is listed.  Since /proc isn't something that can be 
just modified, I am stuck here.  The sixth file in my working system is 
/hdd/capacity and the contents are (0).

The thought came to me that perhaps the bios is set up for just one ide and 
maybe the install somehow bypasses this while the system installed does not.  
My next move is to try to find out how to get to the Compaq bios.  None of 
the usual keystrokes seem to work.

Thanks a lot, Greg
bruce

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