fwiw, in -current, USB attach order should be quite predictable. there are no longer multiple threads attaching USB devices. attachment is now done in a single thread, and it is done in the same order every time.
of course, if you change which USB ports the devices are connected to between boots, or disconnect/reconnect while booted then the order might change. On Fri, Nov 05, 2010 at 08:37:37PM +0800, Marcus wrote: > http://www.openbsd.org/faq/faq1.html#WhatsNew > says: > diskmap(4) interface > People using USB attached storage or softraid(4) configurations often > had difficulty with drive identifiers changing from boot to boot, or > between hardware configurations. diskmap(4) allows you to mount drives > by unique disklabel UIDs rather than how they are attached, so now you > can use the same /etc/fstab on your USB flash disk without worrying > wheter it would come up as sd0, sd1 sd2, etc. > > http://www.openbsd.org/faq/faq14.html#flashmemLive > says: > If your target machine has an ahci(4) or SCSI interface, you will > probably find your USB drive's identifier changing. Having multiple > versions of your /etc/fstab file may make this easier to "fix" (in > single user mode). > > -------Question > Would somebody rewrite #flashmemLive section for the diskmap interface > change? > or how to edit the /etc/fstab for live USB device without worrying > wheter it would come up as sd0, sd1 sd2, etc. -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org
