Date: 07 Apr 2003 09:59:25 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com> To: freebsd-questions@freebsd.org, Christopher Turner <christopher@contemplation.org> Subject: Re: USB Solid-state drive problems Message-ID: <44vfxq76iq.fsf@be-well.ilk.org> In-Reply-To: <20030405145425.L29493@thought> References: <20030405145425.L29493@thought>
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Christopher Turner <christopher@contemplation.org> writes: > I have a USB flash drive with 128MB. > > When it first recognizes it, i see this on the console: > > umass0: USB Solid state disk, rev 1.10/1.00, addr 2 > da0 at umass-sim0 bus 0 target 0 lun 0 > da0: <128MB HardDrive 1.11> Removable Direct Access SCSI-2 device > da0: 650KB/s transfers > da0: 126MB (258048 512 byte sectors: 64H 32S/T 126C) > > I can mount it with either of the following depending on the mood of the > box: > > "mount_msdos -l /dev/rda0s1 /mnt" > OR > "mount_msdos -l /dev/da0s1 /mnt" Those devices are identical (in the last few releases on both 4.x and 5.x), so it's not the device you're trying that makes the difference. > does anyone know why this thing is so flaky? Will it be improved? Will > sending my style of flash drive to the dev team help? Is 5.0 more stable > with this kind of stuff? Generally this kind of thing seems to be related to the standards compliance (or lack thereof) of the devices, but I don't really know in detail. Certainly quirks and so forth are added to the development tree on a pretty continuous basis. Updating to the latest code (you don't mention what you're running) might help. > Is there any way to reinitialize the usb bus(or whatever does the usd > detecting) so it will recognize the flash drive after i've removed it and > reinserted it? usbd(8), perhaps?
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