I originally installed freenas to a pool on two 16GB usb sticks. Many an update went fine. The latest (FreeNAS-9.3-STABLE-201602031011) update however froze in the webgui. I do all my updates manually as the nas box is not connected to the Internet. I ran the update again, and it looked like it passed. After a reboot, however, I'm greeted with GRUB rescue mode , after an error about i386-pc not being found.
I booted with the installation ISO, hoping to upgrade, keeping my configs, but the installer only offers to wipe the drives and do a full install. I also zfs imported freenas-boot in installer shell to see if there's anything there and I cannot locate the grub files. I mounted a last known good /ROOT/FreeNAS-FreeNAS-9.3-STABLE-somethingsomething and it seemed to contain files, but nothing under boot/grub.
Can I somehow, using the installer shell, rollback to the last known good snapshot (in this case 20151212) of freenas-boot and enable it to boot again or do I have to backup the configs (which files?) and do a clean reinstall?
I booted with the installation ISO, hoping to upgrade, keeping my configs, but the installer only offers to wipe the drives and do a full install. I also zfs imported freenas-boot in installer shell to see if there's anything there and I cannot locate the grub files. I mounted a last known good /ROOT/FreeNAS-FreeNAS-9.3-STABLE-somethingsomething and it seemed to contain files, but nothing under boot/grub.
Can I somehow, using the installer shell, rollback to the last known good snapshot (in this case 20151212) of freenas-boot and enable it to boot again or do I have to backup the configs (which files?) and do a clean reinstall?