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I have a USB drive that used to mount with another computer, but won't appear when it should with another. I'm running Ubuntu 11.04 and the drive should appear under "Places". Here's the output of dmesg:

1:00.0: no space while unhiding cursor
[293385.423359] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
[293445.824471] exe (29828): /proc/29828/oom_adj is deprecated, please use /proc/29828/oom_score_adj instead.
[299465.937891] [drm] nouveau 0000:01:00.0: no space while unhiding cursor

Update: new lines added are

Aug 14 17:47:23 ubuntu kernel: [  128.502091] usblp0: USB Bidirectional printer dev 2 if 0 alt 1 proto 2 vid 0x03F0 pid 0x1004
Aug 14 17:47:23 ubuntu kernel: [  128.502416] usbcore: registered new interface driver usblp
Aug 14 17:47:25 ubuntu kernel: [  130.703847] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Aug 14 17:47:25 ubuntu kernel: [  130.703909] HDA Intel 0000:00:1b.0: irq 44 for MSI/MSI-X
Aug 14 17:47:25 ubuntu kernel: [  130.703935] HDA Intel 0000:00:1b.0: setting latency timer to 64
Aug 14 17:47:30 ubuntu kernel: [  135.755667] lp0: using parport0 (interrupt-driven).
Aug 14 17:47:32 ubuntu kernel: [  137.450048] eth0: no IPv6 routers present
Aug 14 17:47:35 ubuntu kernel: [  140.788119] usb 7-1: usbfs: interface 0 claimed by usblp while 'usb' sets config #1
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Can you run tail --follow /var/log/kern.log, connect your drive, and post the new lines added afterwards. – Tshepang Jul 17 '11 at 9:18
Thank you, I'll follow the instructions and will see. – Dac Saunders Aug 12 '11 at 1:25
Did those lines you just pasted appear after you have plugged the drive? – rozcietrzewiacz Aug 14 '11 at 21:03
Also, you can try my function posted here to see if the drive was deteced. (You can just paste it in terminal, then about 20 sec. after plugging the drive in, run listusbdisks). – rozcietrzewiacz Aug 14 '11 at 21:09
Thank you rozcietrzewiacz I will keep checking and trying to define is this is a faulty drive but I already could use it with ext4 and then these problems appeared. – Dac Saunders Aug 17 '11 at 7:11
up vote 1 down vote accepted

try checking on /media,

on my system (i'm running Kubuntu 11.04) all the floppy, CDROM and USB gets mounted on /media so you'd like to check there

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It doesn't appear but I'm getting some logfile indications what happens so I'll see where this goes. – Dac Saunders Aug 14 '11 at 18:55

Give the drive a few minutes to appear. If it was unplugged without being properly dismounted, or the physical shocks of being transported have caused surface damage, the OS may be doing a background fsck on the drive. If that's happening, it won't show up in the UI until that finishes.

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Few minutes is absolutely too much. Dmesg should react within at most about 10-20 seconds so it is clearly not the problem. Also no fsck can take place before the kernel identifies the hardware (as indicated by dmesg). – rozcietrzewiacz Aug 14 '11 at 21:00

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