Subject: Re: partition bookkeeping
To: Ignatios Souvatzis <>
From: Oleg Polyanski <>
List: tech-kern
Date: 09/23/1999 00:47:43
>>>>> "IS" == Ignatios Souvatzis writes:

 >> makes our life easier.  Right now we have floating > >> disk naming
 >> scheme - disk detected first will get number `0' even if it > >> has, for
 >> example, SCSI ID 5 so when I add another disk with SCSI ID > >> number 2
 >> (for example, I would like to add large /opt file system) it > >> becomes
 >> first (i.e.  sd0), not the former `first' disk.  You cannot mount > >>
 >> root fs without editing your `/etc/fstab'.  It's weird.  Disk naming > >>
 >> scheme must depend on device physical properties (SCSI ID, master/slave >
 >> >> or something like that).
 >> You're always supposed to wire down your devices, once you get the system
 >> up and running. :-) i.e. add
 >> sd0 at scsibus0 target 5 lun 0
 >> etc. to your kernel config file.
 >> I'll admit I don't, but I take my chances with unit numbers moving
 >> around.

 IS> I, as a rule, jumper the system disks (all the non-external disks) to
 IS> the low scsi id's, so that they don't jump if I change the external
 IS> configurations. :-)

	Too many magic,  IMO. In both  cases.  I vote for  good device naming
	scheme that will prevent from annoying mistakes.