On Wed, 11 Nov 2009, Polytropon wrote:
On Tue, 10 Nov 2009 17:19:39 -0600, Peter Steele <[email protected]> wrote:
When a system has a USB drive present, the system typically
names it /dev/da0. However, if the system has SATA drives
hooked to an LSI controller, or if the system has SCSI drives,
the same drive prefix is used as is for the USB drive.
I realize this is something that likely has to be done in the
form of a kernel patch, but the question is can it be easily
done?
A kernel patch isn't needed and would surely break many working
subsystems. An option is to use aliases through the means of
/etc/devfs.conf, e. g.
link da3 usbdisk0
That's fragile for dynamic devices; da3 might not be da3 next time it's
attached. You can create a link on device detection through devd.conf
using ln. It's also necessary to manually set owner and permissions,
since devfs.conf settings aren't applied. Thread about that here:
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=4340+0+archive/2009/freebsd-current/20091101.freebsd-current
or, if you want to enter the field of partition names in /etc/fstab,
refer to the disks by their labels, so you don't need to know
which da device a certain disk or USB stick actually is - it
gives you independance from the order of detection by the
system (first detected, first device name).
Labels are an excellent solution in this case.
-Warren Block * Rapid City, South Dakota USA
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