On Sat, 13 Mar 2010 00:26:58 -0500 (EST), Paul E Condon wrote: > > A bit worrisome to me. UUID must be persistent during normal life of a > device, so it can be used as an identifier.
It is important to distinguish between a device and a partition. /dev/hda is a device. /dev/hda1 is a partition. Partitions can be created, deleted, moved, resized, reformatted, etc. many times during the life of its containing device. The UUID of a partition is assigned when the partition is formatted, either with mkfs or mkswap. It retains this value until it is formatted again, at which time a new UUID is calculated. I don't know what the algorithm is for computing a UUID for a hard disk partition. Of course, reformatting a partition destroys all data on it; so in that sense it starts a new life with a new identity. -- .''`. Stephen Powell <zlinux...@wowway.com> : :' : `. `'` `- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/592907538.18899941268509580061.javamail.r...@md01.wow.synacor.com
