I do have to rebuild a machine not originally handled by me.
It has a brand new 13-release installed.
Tweaking the software for the owner, I saw it has ZFS with a unique Zpool then something happened and now the machine is not bootable anymore. It fails when it need to import the Zpool.
Digging the boot menu looking for Rescue, I saw an option called Boot Environment I do usually never seen.
In it there is a submenu with two entries: Active and bootfs. The latter do nothing, then the first is like magic. If I press the A key it goes to two different configurations named: zfs:tank/ROOT/12.0-RELEASE-up-(a date and a number).
If I choose that the machine boot to an unknown old state of the OS I didn't know and it look like a previous version of the OS then some of the data I installed is there: it changed for sure the /boot folder and the /etc folder, it is like a snapshot to my eyes.
Now, what is this Boot Environment option and what it do? Looking on the web, I didn't find much, not to say nothing and do I can use this snapshot state to repair the not bootable actual state of my same pool?
It has a brand new 13-release installed.
Tweaking the software for the owner, I saw it has ZFS with a unique Zpool then something happened and now the machine is not bootable anymore. It fails when it need to import the Zpool.
Digging the boot menu looking for Rescue, I saw an option called Boot Environment I do usually never seen.
In it there is a submenu with two entries: Active and bootfs. The latter do nothing, then the first is like magic. If I press the A key it goes to two different configurations named: zfs:tank/ROOT/12.0-RELEASE-up-(a date and a number).
If I choose that the machine boot to an unknown old state of the OS I didn't know and it look like a previous version of the OS then some of the data I installed is there: it changed for sure the /boot folder and the /etc folder, it is like a snapshot to my eyes.
Now, what is this Boot Environment option and what it do? Looking on the web, I didn't find much, not to say nothing and do I can use this snapshot state to repair the not bootable actual state of my same pool?