[olug] How to force internal HDD to be sda?

Trent Melcher trentm at q.com
Tue Sep 14 13:55:28 UTC 2010

Here is an old article but might point you in the right direction,  it talks
about using the UUID of the disks since those don't change across reboots.



-----Original Message-----
From: olug-bounces at olug.org [mailto:olug-bounces at olug.org] On Behalf Of
Kevin D. Snodgrass
Sent: Saturday, September 11, 2010 8:09 AM
Subject: [olug] How to force internal HDD to be sda?

I have 2 external hard drive cases that I use extensively.  On my laptop
(mostly), in Fedora 13 if I boot with the external drive plugged in via USB
it gets assigned /dev/sda and the laptop internal drive gets assigned
/dev/sdb.  When the external is not attached the internal gets assigned
/dev/sda.  Why?  Sorry to be blunt, but that is just damn stupid.  (Says the
crusty old UNIX guy)

Is there some way I can force whatever is doing this (I'm guessing udev,
since this problem starting showing up with it's introduction) to assign the
internal to /dev/sda?

Kevin D. Snodgrass

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