USB drive requires 2 tries to mount

BuilderQ · 10-07-2007, 06:16 PM

Each time after I plug in my USB drive, my first attempt to open /media/usb-drive gives this error message in ROX-Filer:

Quote:

Mounting /media/usb-drive
mount: special device /dev/sda1 does not exist
Mount failed

Done
There was one error.

However, when I go to /media/usb-drive for a second time, it always mounts successfully and I can access the drive's files.

Why should the first attempt always fail?

The relevant line in my /etc/fstab file is

Quote:

/dev/sda1 /media/usb-drive vfat rw,user,noauto 0 0

aus9 · 10-08-2007, 12:40 AM

it depends on how patient you are.

your distro and mine (Mdv) use HAL to mount removeable media and mine takes a few seconds to bring up the prompt.

Hal can also be affected by dbus according to a thread I read.

so how long are you waiting before clicking on mount folder?

Bruce Hill · 10-08-2007, 12:44 AM

I suspect that the first attempt fails because it is not yet finished scanning. Open a terminal as root and issue "tail -f /var/log/messages" and you can see what happens when you insert a USB device. When it says "finished scanning" you can mount without getting this message.

BuilderQ · 10-08-2007, 11:46 AM

aus9: You're right, if I wait several seconds before trying to mount the drive, it works.
Bruce Hill: Well, no "finished scanning" message appears, but new lines stop appearing after these are written:

Code:

Oct  8 10:34:46 atat-desktop kernel: [ 1296.305264] usb 1-2.4: new full speed USB device using uhci_hcd and address 10
Oct  8 10:34:47 atat-desktop kernel: [ 1296.436507] usb 1-2.4: configuration #1 chosen from 1 choice
Oct  8 10:34:47 atat-desktop kernel: [ 1296.438659] scsi7 : SCSI emulation for USB Mass Storage devices
Oct  8 10:34:51 atat-desktop kernel: [ 1301.440282] scsi 7:0:0:0: Direct-Access     SanDisk  Cruzer Micro     2033 PQ: 0 ANSI: 0
Oct  8 10:34:51 atat-desktop kernel: [ 1301.448537] SCSI device sda: 512000 512-byte hdwr sectors (262 MB)
Oct  8 10:34:51 atat-desktop kernel: [ 1301.453521] sda: Write Protect is off
Oct  8 10:34:51 atat-desktop kernel: [ 1301.465533] SCSI device sda: 512000 512-byte hdwr sectors (262 MB)
Oct  8 10:34:51 atat-desktop kernel: [ 1301.470522] sda: Write Protect is off
Oct  8 10:34:51 atat-desktop kernel: [ 1301.470563]  sda: sda1
Oct  8 10:34:51 atat-desktop kernel: [ 1301.476819] sd 7:0:0:0: Attached scsi removable disk sda
Oct  8 10:34:51 atat-desktop kernel: [ 1301.476995] sd 7:0:0:0: Attached scsi generic sg0 type 0

It would be nice if ROX waited a few seconds instead of giving the error message, but I guess this'll do.

Bruce Hill · 10-08-2007, 04:59 PM

Sorry, I don't remember where the "finished scanning" message came from atm. When I posted to you I was offsite and didn't have a USB cable to plug a device into the laptop I was using.

Your kernel output is fine. Now you'll need to find out how Rox is configured, so that you can tell it to wait for a certain amount of seconds before mounting the devices. Can't help you there - no Rox on this box.