20 GB IDE drive in Ultra 10
2007-12-24 19:42:00
Seems I'm not the only one having trouble with large IDE drives, but I haven't
seen any definitive answer yet. Here is my problem: I received a 20 GB IDE
drive from Western Digital WDC WD200BB-00AUA1.
After setting it up in an Ultra 10 machine (as the only drive on the second
IDE channel), I fired format, and it tells me that the drive has:
<WDC WD200BB-00AUA1 cyl 16381 alt 2 hd 16 sec 63>, with 16512048 blocks.
According to the manufacturer's doc, the drive actually has 39102336 blocks.
So I set about creating a format.dat entry for the drive:
disk_type = "WDC WD200BB-00AUA1" \
: ctlr = ata : ncyl = 14545 : acyl = 2 : pcyl = 14547 \
: nhead = 14 : nsect = 192 : rpm = 7200
partition = "WD200BB" \
: disk = "WDC WD200BB-00AUA1" : ctlr = ata \
: 2 = 0, 39096960 \
: 6 = 0, 39096960
Then, in format I selected the new disk type, partitioned, labeled, and run a
couple passes of read analysis with no problem.
*BUT*, then, when trying to newfs a partition there, I got I/O errors, and
when starting format again, it complained that the label was bad because it
pretended to have more blocks than the disk was reporting... The complaint
message also appears during a reboot:
unix: WARNING: /pci at 1f,0/pci at 1,1/ide at 3/dad at 2,0 (dad1):
unix: corrupt label - bad geometry
unix:
unix: Label says 39099648 blocks, Drive says 16514064 blocks
I then wondered if it could be caused by an outdated PROM, and updated that to
the latest, but to no avail...
If I give in, and use only 16512048 blocks, I can then partition the drive and
create filesystems just fine. But that's not satisfactory...
I also looked for a patch to format, but couldn't find one...
So, you are my last resort it seems.
Any info much appreciated, and summarized.
TIA,
Christian
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