[email protected] (Theo de Raadt), 2017.03.06 (Mon) 21:51 (CET): > Well, is mentioning this even important?
That adding/removing disks might change the numbering of existing disks is basic unix knowledge, I suppose. But it might answer questions which are otherwise taken to the mailing lists? > DUID use solves part of the problem, BIOS selection solves other parts > of the problem, and I suspect the remainder of the problem is so > machine-dependent that I wonder why it is documented.. Cannot comment on that. In case it stays: Add a reference to the DUID section. Move the 'OpenBSD vs. boot ROM' sentence up where it fits better. Marcus Index: faq14.html =================================================================== RCS file: /cvs/www/faq/faq14.html,v retrieving revision 1.352 diff -u -p -u -r1.352 faq14.html --- faq14.html 4 Mar 2017 21:22:45 -0000 1.352 +++ faq14.html 7 Mar 2017 08:46:23 -0000 @@ -73,9 +73,11 @@ The devices are numbered by the order in starting at zero. So, the first IDE-like disk will be <tt>wd0</tt> and the third SCSI-like disk will be <tt>sd2</tt>. -Removing or adding a disk may impact the identity of other drives on the system. -Note that OpenBSD will not necessarily number drives in the same order as your -boot ROM. +Detection and thus numbering might differ between OpenBSD and the boot ROM. +Removing or adding a disk may impact the boot time order of other drives. +If your <a href="http://man.openbsd.org/fstab";>fstab(5)</a> references these +devices this might cause breakage. +Use <a href="faq14.html#DUID">DUID</a>s instead! <h3>Partitions and filesystems</h3> > > When first (re-) read I thought 'what? attaching an usb drive cannot > > change other drives' - until I figured this was about boot time. > > Say so: > > > > Marcus > > > > Index: faq14.html > > =================================================================== > > RCS file: /cvs/www/faq/faq14.html,v > > retrieving revision 1.352 > > diff -u -p -u -r1.352 faq14.html > > --- faq14.html 4 Mar 2017 21:22:45 -0000 1.352 > > +++ faq14.html 6 Mar 2017 20:38:37 -0000 > > @@ -73,7 +73,7 @@ The devices are numbered by the order in > > starting at zero. > > So, the first IDE-like disk will be <tt>wd0</tt> and the third SCSI-like > > disk > > will be <tt>sd2</tt>. > > -Removing or adding a disk may impact the identity of other drives on the > > system. > > +Removing or adding a disk may impact the boot time numbering of other > > drives. > > Note that OpenBSD will not necessarily number drives in the same order as > > your > > boot ROM. > > > !DSPAM:58bdcbfa12291846217268!
