Date: Wed, 16 Aug 2017 09:26:41 +0200 From: Polytropon <freebsd@edvax.de> To: Kurt Buff <kurt.buff@gmail.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: FUBAR on an upgrade - need some help Message-ID: <20170816092641.038c1860.freebsd@edvax.de> In-Reply-To: <CADy1Ce4Su5NDequMC3t10Suut6iSsw=zT0RK1h_GpRxnQQsFEQ@mail.gmail.com> References: <CADy1Ce4Su5NDequMC3t10Suut6iSsw=zT0RK1h_GpRxnQQsFEQ@mail.gmail.com>
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On Tue, 15 Aug 2017 19:29:23 -0700, Kurt Buff wrote: > I have an old Acer AspireOne netbook that's been running 10.1-RELEASE. > > Yesterday I upgraded it using freebsd-update to 10.2 and then to 10.3, > and it went fine. > > Then I upgraded it to 11.0-RELEASE, and it failed during boot, saying > it wanted to boot from ad4s1a, but couldn't find it. > > I have managed to get it into single user, and have run "df-h" and > "gpart show", which don't agree at all. Output: > > # df -h > Filesystem Size Used Avail Capacity Mounted on > /dev/ad4s1a 140G 36G 93G 28% / > devfs 1.0k 1.0k 0B 100% /dev > > #gpart show > => 63 312581745 ada0 MBR (149GB) > 63 312581745 1 freebsd [active] (149GB > > => 0 312581745 ada0s1 BSD (149GB) > 0 8388608 2 freebsd-swap (4.0GB) > 8388608 304193137 1 freebsd-ufs (145GB) > > # cat /etc/fstab > # Device Mountpoint FStype Options Dump Pass# > /dev/ad4s1b none swap sw 0 0 > /dev/ad4s1a / ufs rw > 1 1 The OS now has associated /dev/ada0 to the device formerly known as /dev/ad4, so the root partition needs to be adjusted in /etc/fstab from /dev/ad4s1a to /dev/ada0s1a. When in single-user mode, do this: # mount -w / so you can write to /, then use # vi /etc/fstab or # ee /etc/fstab to make the required changes (for the swap partition as well). Finally reboot. > I can't seem to use vi to modify fstab. This is because the system leaves / mounted read-only when booting into single-user mode (and it does not mount anything than /, so if you have /usr on a different file system, you need to mount that as well). -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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