Can't *write* to a hard disk, problem related to GEOM(4)?

Julien Gabel jpeg at
Fri Apr 16 04:54:49 PDT 2004

>>>>/dev/ad10 was previously part of a hardware miror (ar(4) device with a
>>>>HighPoint HPT374 (channel 2+3) UDMA133 controller), but since it was
>>>>broken for an unknown reason, thid drive is no more usable, even alone.
>>>>For example, I am not be able to create a new slice on it.

>>>Could you try to compile a kernel without the ar(4) driver in it ?
>>>It may still be latching on to this disk...

>> Since the ar(4) driver is part of ata(4) generic ATA/ATAPI disk
>> controller driver, I don't think it is possible to do that without
>> shooting myself on the foot. Any ideas?

> In -current and 5.something you can disable ATA RAID support by
> commenting out the "device ataraid" line.

Ok. So I will disable the ataraid support in the kernel, reboot without
no mirror (and no support for it) and... what am I suppose to try in this
particular situation? I am not sur what you want me to test in this case.
Will just re-enable the ataraid support and reboot be sufficient to
release the latch?


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