Also rsync'ing whole partitions with -x gives good results for backups, after that just chroot and installboot and you're set.
On Fri, Sep 19, 2025 at 8:51 PM Thomas de Grivel <[email protected]> wrote: > > Well running with /usr read-only is not supported but it only takes a > mount -uw from times to times so it's worth it in my opinion. > > If running OpenBSD on multiple partitions is ok with /etc/boot.conf > then why not ? > > I don't see any caveat except choosing the right partition at install > and upgrade. > > At worst you end up with the wrong version of OpenBSD and need to > reinstall with separate /home it's no problem. > > Be careful with bsd.rd and it should work. > > I have a few machines with multiple disks that could be mounted as > root but only installboot and /etc/fstab decide what to mount as root > as far as I have seen in OpenBSD world. > > > On Wed, Sep 17, 2025 at 1:34 AM Stuart Henderson > <[email protected]> wrote: > > > > On 2025-09-16, Crystal Kolipe <[email protected]> wrote: > > > On Tue, Sep 16, 2025 at 03:43:32PM +0000, Roderick wrote: > > >> I want to have two versions of OpenBSD in the same disc, and reinstall > > >> / update one of the two as I feel necessary. > > >> > > >> Is it possible? > > > > > > It's _possible_, but it's one of those things that can easily go wrong if > > > you > > > are not 100% sure of what you're doing. > > > > This includes at upgrade time, not just install time. > > > > Right now in particular, I would defer doing anything tricky with > > partitions until some things land in the tree. > > > > > If you need to ask, it's very likely > > > that don't have enough OpenBSD experience to avoid difficulties further > > > on. > > > > as is often the case when doing things where there's no clear path in > > the documentation. > > > > -- > > Please keep replies on the mailing list. > > > > > -- > Thomas de Grivel > https://www.kmx.io -- Thomas de Grivel https://www.kmx.io
