Messages in this thread | | | Subject | Re: UUIDs (and devfs and major/minor numbers) | Date | Sun, 20 Jun 1999 08:40:44 -0400 | From | "Brandon S. Allbery KF8NH" <> |
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In message <19990619193141.A6097@chelm.cs.nmt.edu>, yodaiken@chelm.cs.nmt.edu w rites: +----- | I see the problem with systems that have a couple of i/o busses and | add and remove storage devices from them | and there is a related problem that also touches pcmcia/usb where | devices can be plugged and unplugged. For both problems we need some | sort of dynamic naming that makes sense and for the pcmcia/usb we need | a nice way to find drivers to load. Is there some other issue here | that I don't understand or is that it? +--->8
SCSI (and IDE?) devices get named in the order they're detected, without regard for their physical addresses. So if you have disks on scsi0 id0 lun0 and scsi0 id4 lun0 they get named /dev/sda and /dev/sdb; if you add a disk on scsi0 id2, it becomes /dev/sdb and the old sdb is suddenly /dev/sdc.
-- brandon s. allbery [os/2][linux][solaris][japh] allbery@kf8nh.apk.net system administrator [WAY too many hats] allbery@ece.cmu.edu carnegie mellon / electrical and computer engineering KF8NH We are Linux. Resistance is an indication that you missed the point.
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