[ubuntu-uk] IDE drive mounting ....

Liam Proven lproven at gmail.com
Mon Oct 11 17:50:07 BST 2010

On 11 October 2010 14:55, Glen Mehn <glen.mehn at oba.co.uk> wrote:
> On 11/10/10 14:49, Barry Drake wrote:
>> You should be able to have it mount by putting in fstab:
>>> /dev/hdb1    /path/to/mountpoint<filesystem>     defaults    0    0
>> Thanks - that works OK!  I now have /dev/sda1 /media/HD3  ntfs  0 0 in
>> fstab, and it works just fine with any ntfs drive.  I ought to have
>> thought of that instead of using the UUID.  I just wonder why automount
>> tries to mount using /dev/sdb1 when it is there all the time
>> as /dev/sda1?  Windows doesn't make that mistake - if that is what it
>> is.
> Hi Barry,
> Glad that helps. I would guess that the Automounter is having trouble
> with 2 drives on one IDE channel.

That shouldn't be the case. I have 2 IDE hard disks on my primary IDE
channel & 2 DVD burners on my secondary, with no issues. Most of my
PCs have had multiple drives - some up to 6 HDs + 3 CDs - and I do not
have any PCs with SATA.

> It should be /dev/hdb1 (the DVD drive
> should be /dev/hda) You should remember, too, that if you have 2 devices
> working simultaneously on one IDE controller will result in
> significantly degraded performance (essentially, the controller can only
> use one device at a time).

Not the case since about 1995 with the appearance of Intel's 82430
"Triton" chipset for the original Pentium. Since that appeared, almost
everything (apart from one or 2 really rubbish SIS chipsets, for
instance) has supported busmastering on IDE, which means overlapped
IO, as I understand it. The 82430HX and 82430VX chipset's PIIX2
controller allowed 2 different IDE devices on a single channel to
operate at different speeds, as well, so one can be (say) PIO4 and one
UDMA2, without conflict.

> The automounter's really more set up for hot-swappable drives. Another
> solution might be to use IDE=>USB cases, but it sounds like you're
> sorted. Glad so.

I'd just make sure the drives in the caddy had distinctive labels on
all their partitions, myself! :¬)

Liam Proven • Info & profile: http://www.google.com/profiles/lproven
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