There is a change of file system superblock format between 7 and 8 iirc which may need some attention. (Previously I have managed to build.sh 9.2 on a 6.1 machine.) C > On 20 Aug 2022, at 13:39, Valery Ushakov <uwe%stderr.spb.ru@localhost> wrote: > > On Sat, Aug 20, 2022 at 11:15:34 -0400, Greg Troxel wrote: > >> I am helping someone update an i386 system from 5 to 9, which is on >> the net but without console (remote hands possible but really want >> to avoid that). > > You can install netbsd 5 under qemu or vbox and to do a test-drive > upgrade to 9 :). Make a snapshot before doing the upgrade so that you > can re-start easily if something goes wrong. > > GENERIC has compat for everything since 0.9, so the new kernel should > be fine for the old 5 userland. > > I think the largest upgrade I did was a sparc from 2007 (whatever > version it was) to current from about two years ago. > > -uwe
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