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Old 09-10-2004, 04:37 PM   #1
Registered: Mar 2004
Location: dublin IRL
Distribution: Slackv12.1, Slamd64v12.1,Xubuntu v8.10_64, FC8_64
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how to find the right /dev file?

I keep hitting this problem, because I have no method dealing with it.

I have a USB memory key, which on my own PC comes up as /dev/sda1. I go another PC, load Knoppix, but sda1 is called an invalid block device. OK, I think, just try out the other "usual suspects", /dev/sda, /dev/sdb, etc. No luck.

dmesg tells me a USB mass storage device has been found, but no clues as to which file in /dev. Similarly lsmod tells me, it's there but nothng else.

And there are so many files to choose from in /dev! Which one could it be? IS there any sort of autmated method of sifting through them and finding which one? Or has it always got to be a manual trial and error thing?
Old 09-11-2004, 05:37 PM   #2
Registered: Aug 2003
Location: Antwerp, Belgium
Distribution: Slackware 10.0, Mandrake 10.1
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I used to find this by doing

fdisk -l /dev/sd*

if it finds a device with a partition on it, it will list it.

I have no clue whether that's the "correct" way of finding out which device to use, but it still hasn't failed me so far
Old 09-11-2004, 08:19 PM   #3
Registered: Mar 2004
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Hey that's pretty cool.

I think most people just hope that conventions are followed and do it by trial and error. May be there is no correct way.

Yours quickens up things a good bit, thanks! Good one!


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