External drive seen in Mint but not Fedora 14
I have a computer with an Asus M2N68-AM plus mother board running Fedora 14 that will not show external usb flash drives or hard drives when I plug them in. I used to run Linux Mint 9 on this computer and switched to Fedora because of easier LVM support out of the box. Mint would mount these devices just fine.
To simplify the issue and rule out anything I did since the installation, I tested this on both the Mint 9 live DVD and Fedora 14 live cd (both 32-bit versions, if that makes a difference) with the same results. Just to be clear, I'm still somewhat new to Linux. I'm reasonably sure it's an issue with seeing the devices in the first place and not just an auto-mounting problem, but any suggestions will be greatly appreciated. |
In Fedora, look at the output of (as root)
Code:
fdisk -l It'll be something like Code:
Disk /dev/sda: 160.0 GB, 160041885696 bytes If there were a USB drive plugged in, there would be another, most likely /dev/sdb listed. You can also look at the output of dmesg. Start watching dmesg and then plug in the drive. Code:
watch "dmesg | tail -20" Code:
[58218.551530] sd 6:0:0:0: Attached scsi generic sg3 type 0 |
1 Attachment(s)
Aright, I ran "fdisk -l" and saw only my internal drives and my lvm volume group.
Code:
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes Using the your second suggestion of watch "dmesg | tail -20", I tried this a few more times. The attached thumbnail is an example of what was scrolling by during the long delay until it mounted. My usb 3.0 external hard drive will not mount at all, either using my usb 3.0 card, or the same usb 2.0 port I used the flash drive in: Code:
[ 2342.997023] usb 1-5: device descriptor read/64, error -71 |
Looks like USB 3.0 is disabled in Fedora 14 by default.
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I think the USB 3.0 thing is something of red herring. It would explain why nothing would happen on the 3.0 ports, but I'm talking about the regular 2.0 ports here. I do appreciate the help, though.
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Alright, I got it working. I googled the error codes from dmesg and came across this: http://www.gossamer-threads.com/list...oo/user/190517
When I plugged my drive (incidentally USB powered) into the rear USB 2.0 ports directly on the motherboard, it worked immediately. It seems there is a power draw issue with the ports at the front of the case. Your info about the USB 3.0 ports being disabled in Fedora explains why it wouldn't work there, so I was dealing with two different issues. Thanks for your help, and thanks for teaching me a few more tricks in the terminal. I might make a decent Linux user yet! :) |
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