From: rich@example.invalid   
      
   root  wrote:   
   > Rich  wrote:   
   >>   
   >> But, if you want to reuse a UUID, you can (these instructions are for   
   >> the ext[234] filesystems).  If you've already created them, then aquire   
   >> the old UUIDs somehow, then use tune2fs (see "man tune2fs") to assign   
   >> the old UUIDs to the newly formatted filesystems.   
   >>   
   >> Or, if you have not yet created them and are manually running the   
   >> mkfs.ext[234] command, then use the -U option (see the man page for the   
   >> command you use) when you make the filesystem to assign a specific UUID   
   >> to the new filesystem.  Note you still have to obtain the prior UUID   
   >> somehow.   
   >   
   > Thanks. Doesn't it seem a little too much trouble? if the (hd..) stuff   
   > works then why not?   
      
   If nothing changes about your system, the hdX numbers are usually   
   stable.  In which case, you won't see a problem using them.   
      
   But, if you upgrade to a new motherboard, or add/subtract cards that   
   contain disk controllers, it is possible the hdX/sdX assignments to   
   physical disks will be different after the hardware changes.   
      
   The UUID's are in the filesystem, so it does not matter if the hdX or   
   sdX values move around, the UUID's allow the right filesystems to be   
   mounted correctly.   
      
   --- SoupGate-Win32 v1.05   
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