mounting external hd under gentoo (fails) - works on debian - needs sr0 device
Hi. I recently picked up an external HD which I partitioned, formatted, and can mount just fine under Debian. When I plug in the device, I can see an appropriate sda1 entry for my partition in /dev.
However, when I attempt to use the device in Gentoo (the system I bought the drive to back up) it seems to not be recognized. I still get some new entries under /dev when I plug it in, but no specific partition number is recognized. On Debian (where it works) here is the output of dmesg after plugging in the device: Code:
[ 9179.847274] usb-storage: device found at 8 Code:
sd 5:0:0:0: [sde] READ CAPACITY failed |
You think it yu might be missing usbmount(for mass usb storage) &/or pmount?
http://www.linuxquestions.org/questi...device-387461/ |
Hi EDDY1. Thanks for the response. I don't see how usbmount or pmount would help me in this situation, because I am attempting to manually mount the device as root.
I think I know what my problem is, but I don't know how to fix it. If I boot up Windows (bleh) the drive appears as a 500 GB partition and an additional CD drive, containing a preloaded encryption exe that came on the drive. On my Debian install, it would seem to recognize this so called "CD drive" and thus the mention of SCSI device sr0 in the dmesg. I can then mount /dev/sda1 (ext3 partition) and work with the drive normally. On the Gentoo system, it simply does not seem to recognize the "SCSI cd" portion of the hard drive (which I think contains something important in mapping the rest of the drive). After plugging it into that computer, I get several new device files, sda, sdb, sdc, sg0, sg1, etc, but I cannot mount any of them at all. The kernel on the Gentoo computer is actually newer than the one on the Debian sys, and I installed a generic kernel, so I'm kind of surprised it's not working. However, due to the DIY nature of Gentoo, it's possible that there is something I just haven't set up or configured - I just don't know what! But I don't need the drive mounted automatically, I just need it to show my ext3 partition under /dev so that I can mount it manually - but it would seem without the "SCSI cd" being identified, it's not working. |
It turns out that the USB port on the system in question was just not working, or maybe not providing enough power. After getting the drive to work on yet another linux install, I just gave up and figured it was the hardware. The only advice I can really offer for this type of situation is to try your malfunctioning hardware on multiple systems before panicking! Marking solved. Thanks.
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