On Sat, Nov 29, 2003 at 08:17:41PM +0200, Shlomo Solomon wrote: > Unfortunately, I discovered that the change from auto to vfat was not the > solution to the problem. I don't like **magic** or things that seem to happen > for no reason. There's always a reason - we just have to find it. > > After my previous message (about an hour ago), I decided to play with the > device again before returning it to my friend tomorrow. I was again not able > to save data. In fact, the situation was even worse. I could no longer even > mount the device. I checked fstab and found that the /dev/sda1 entry was > gone. I can only guess that kudzu periodically checks and updates fstab > (maybe a cron job - I didn't check). > > I added the /dev/sda1 entry manually and was able to mount and read data but > again couldn't save data (using auto or vfat). > > I then went to the **extreme** of re-booting and spoiling my uptime ;-) a few > times with and without the device in the USB plug. What I discovered is that > the device seems to work as expected **out-of-the-box** the first time only, > regardless of whether I boot with the device in the plug or plug it in after > booting. What I mean is that without changing from auto to vfat, I can read > and write on the device. > > But if I umount, remove the device from the plug and them plug it in and try > again, I can no longer save data. > Try removing the usbstorage driver before you plug the device back in and see if that help. It could be that some data is left behind which is reused when it shouldn't be. You could also try going farther and restart hotplug after you remove the deevice so the usb modules will get reloaded (occationaly solves usb problems on my machine). also cat /proc/scsi/scsi and see if the device is still registered when it is removed and if a usb-storage entry exists under proc (under /proc/scsi if I recall corectly). > BTW - I have no idea why the change from auto to vfat worked yesterday. I > didn't boot and it obviously wasn't the first time I'd plugged in the device, > since as you all know, I'd been trying several suggestions that didn't work > before making the auto to vfat change :-( > > > -- > Shlomo Solomon > http://come.to/shlomo.solomon > Sent by KMail (KDE 3.1) on LINUX Mandrake 9.1 > > > > ================================================================= > To unsubscribe, send mail to [EMAIL PROTECTED] with > the word "unsubscribe" in the message body, e.g., run the command > echo unsubscribe | mail [EMAIL PROTECTED] >
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