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.
