It worked exactly as you explained it and i learned how to use ed on the way.
A million thanks Paul! > Sent: Tuesday, February 02, 2021 at 2:38 PM > From: "Paul de Weerd" <we...@weirdnet.nl> > To: "misc nick" <misc.n...@gmx.com> > Cc: "misc" <misc@openbsd.org> > Subject: Re: umount at boot possible? > > On Tue, Feb 02, 2021 at 01:30:28PM +0100, misc nick wrote: > | Hello > | > | I have a separate disk that i was mounting as a nfs partition. That disk > crashed (it was very old). Now that OpenBSD 6.7/i386 release system cannot > boot because it can't mount the disk. > | Is it possible to umount the partition or somehow skip mounting it at boot > time and continue booting from the disk that contains the OS? > > Before loading the OpenBSD kernel, at the bootloader type `boot -s`. > This boots the system in single user mode. Now you can manually mount > the root filesystem (`mount -u -w /`), and you can then fix your > /etc/fstab to exclude the broken disk. > > Note that in single user mode, many userland tools are not available > if /usr is on a separate partition (which is a sane default). You'll > have to fix /etc/fstab with tools like cat and ed, or mount /usr. > > Once things are fixed, unmount everything that you manually mounted, > and remount the root filesystem read-only again (`mount -u -r /`). > Then exit the single user shell, the system should continue booting > from there. > > Cheers, > > Paul 'WEiRD' de Weerd > > -- > >++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+ > +++++++++++>-]<.>++[<------------>-]<+.--------------.[-] > http://www.weirdnet.nl/ >
