[arch-general] usb disk not visible
I have a problem with an external USB disk here, which is a WD 500Gb bought last year. Recently I decided finally to format it to ext3, since I'm using Linux everywhere, but now I don't seem to see it from my dell latitude. On my mini dell everything works perfectly, but on the latitude I get only this from dmesg [ 8916.825474] usb 2-1.2: USB disconnect, device number 11 [ 8917.013895] usb 2-1.2: new high-speed USB device number 12 using ehci_hcd [ 8919.126604] usb 2-1.2: USB disconnect, device number 12 [ 8919.314274] usb 2-1.2: new high-speed USB device number 13 using ehci_hcd and fdisk doesn't detect anything: [andrea@dell]$ sudo fdisk -l /dev/sdb Any idea of what it could be?
On 04/09/12 at 06:04pm, Andrea Crotti wrote:
udisks --enumerate shows it? I'm sure you have looked into it, but any chance that it's in, say, /dev/sdc?
On 04/09/2012 06:09 PM, Manolo Martínez wrote:
udisks --enumerate shows it? I'm sure you have looked into it, but any chance that it's in, say, /dev/sdc?
This is what I get: /org/freedesktop/UDisks/devices/dm_2d0 /org/freedesktop/UDisks/devices/dm_2d1 /org/freedesktop/UDisks/devices/dm_2d2 /org/freedesktop/UDisks/devices/sr0 /org/freedesktop/UDisks/devices/sda /org/freedesktop/UDisks/devices/sda1 /org/freedesktop/UDisks/devices/sda2 /org/freedesktop/UDisks/devices/sda3 /org/freedesktop/UDisks/devices/sda5 and sadly nothing useful apparently.. It's very weird that it works on one and not the other, what can actually stop the partition to be discovered?
On 04/09/2012 06:31 PM, Guus Snijders wrote:
All USB ports work perfectly on this machine as far as I can tell. I now tried all three ports and exactly same results. Can it be something in the kernel? Or maybe UDEV configuration (which I guess should come at a later stage, so it should not be the problem).
On 04/09/2012 06:45 PM, Andrea Crotti wrote:
Actually I was wrong it was the USB somehow, also the mouse stopped working.. After a kernel update and reboot now everything seems to work, not sure what happened though, which is a bit annoying.
On Mon, 09 Apr 2012 21:20:43 +0100 Andrea Crotti wrote:
Some machines (especially smaller laptops) or boards use hubs internally rather than full usb ports that don't share their power. This is especially true of ports on the front of your desktop compared to the rear and is why some devices only work on rear ports due to a higher power demand, one characteristic is a usb hdd that sometimes won't spin up on front ports but does everytime on rear ports. Maybe you just sapped too much leckie at once and something got confused? Re-plugging should be all that's necessary though, that's a bit strange.
participants (5)
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Andrea Crotti
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Guus Snijders
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Kevin Chadwick
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Manolo Martínez
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Thanos Zygouris