On Thu, Apr 09, 2009 at 08:01:29PM -0700, per...@pluto.rain.com wrote: > Roland Smith <rsm...@xs4all.nl> wrote: > > On Thu, Apr 09, 2009 at 12:47:23PM -0700, per...@pluto.rain.com wrote: > > > It's an SD card, not a "drive", so I had not expected it to be > > > partitioned; but yes, it is: > > > > > > $ ls -l /dev/da0* > > > crw-r----- 1 root operator 0, 244 Feb 14 15:09 /dev/da0 > > > crw-r----- 1 root operator 0, 245 Feb 14 15:09 /dev/da0s1 > > > > That would suggest that there is a filesystem on there, doesn't it? > > It would certainly suggest there is a DOS "partition" table aka > BSD "slice" table. I don't think it says anything about what the > slice contains, however.
Well, why bother making slices if you're not going to put a filesystem on it? <snip> > > It could be that this USB chipset needs some "quirks" to work > > correctly. > > like "Don't attempt to read more than 32768 bytes at a time" -- > subsequent testing shows it to be OK up to bs=64b, but bs=126b > fails -- or is there maybe a way to set that sort of limit in > mtools? I don't know. The quirks I was talking about are built into the USB drivers. See /usr/src/sys/dev/usb/umass.c Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
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