On 4/7/2011 1:37 PM, Nick Holland wrote: > On 04/07/2011 01:02 PM, Steven R. Gerber wrote: >> On 4/7/2011 12:30 PM, Ted Unangst wrote: >>> On Thu, Apr 7, 2011 at 12:10 PM, Steven R. Gerber >>> <[email protected]> wrote: >>>> The partitions/mounts problem is far more disconcerting. What if I >>>> need >>>> to save data to a striped array to do the migration? >>>> Recreating/resetting those parameters is dangerous. How can I create >>>> and use a site script to preserve them through install? Is it possible >>>> to do an install without walloping the existing filesystem(s)? >>>> (Deleting >>>> files is OK.) >>> The installer will not overwrite an existing disklabel if you have one >>> and will only newfs filesystems that have mount points. This is easy >>> to screw up if you aren't careful, but it's certainly possible to do a >>> clean install and keep some filesystems from before. >>> >>> >> I am missing the point. It seems like a Catch-22 to me. >> The installer takes me into disklabel: >> Whole disk OR Auto OR Existing? > > that's not disklabel. that's fdisk. > > you chose "edit MBR" to look at what you currently have and perhaps > change it in your own way, and if I recall properly, it's "OpenBSD" to > use the existing partition. Use the existing partition. > > Then when you get to disklabel, you will chose a "custom" layout. > Define mount points for the partitions you want cleared, and not for > those you wish to retain, and then add them to /etc/fstab afterwards. > > See http://www.openbsd.org/faq/faq4.html#InstDisks for more details. > > >> I also have mount points for my arrays. How do I preserve the softraid >> parameters etc.? > > Same way as any other disk. The install kernel will see, recognize and > configure any existing softraid "disks", and treat them as the other > disks on the system. You do the same. :) > > Nick. > > >
Nick, Thanks for the clue, but I still don't get it (me dummy?). ****************************************************** NOTE for re-installers: The new installer will not clear your old disklabel if you chose "(C)ustom Layout", but you will need to re-specify each mount point using the 'm' option in disklabel(8). The installer now creates those partitions and creates file systems on them using newfs(8), and mounts them for installation: ****************************************************** The FAQ indicates that I must set mounts in disklabel and that they'll be newfs'd. If I don't set them then how/where will the installer copy and unpack files? Is there a point in the process (after disklabel, before file sets) where I can fix /etc/fstab and mount? Thanks, Steven
