ycheng>>In article <199907070339.vaa88...@panzer.kdm.org> you wrote:
ycheng>>>> 3.5" 650MB and 1.3GB MO drives should handle 512KB/sector(128MB,
ycheng>>>> 230MB, 540MB) and 2048KB/sector media(640MB, 1.3GB).

Ofcouse, my typo: 512KB/sector -> 512B/sector,  2048KB/sector -> 2048B/sector

ycheng>>> The CAM DA driver was specifically designed to handle various sector 
sizes,
ycheng>>> and should work fine with non-512 byte sector sizes.  If it doesn't, 
it
ycheng>>> needs to be fixed.

ycheng>>I use "Mitsubishi MCA 640" with Tekram 390F scsi card.
ycheng>>I guess one of error message is from
ycheng>>
ycheng>>/usr/src/sys/kern/subr_diskslice.c
ycheng>>        line 308 (or line 314, I am not very sure)
ycheng>>        which is:
ycheng>>        "dscheck: b_bcount %ld is not on a sector boundary (ssize %d)\n"
ycheng>>
ycheng>>I think this can help you to find why we say that 2048/sector won't 
work.

Thanks. But that was disklabel or slice problem. And also current ffs
and msdosfs need some patches for 2048 sector media.
--
Takeshi OHASHI
oha...@mickey.ai.kyutech.ac.jp
oha...@jp.freebsd.org


To Unsubscribe: send mail to majord...@freebsd.org
with "unsubscribe freebsd-hackers" in the body of the message

Reply via email to