Reinstalling 21.04 on encrypted disk
by Mark_667 from LinuxQuestions.org on (#5K0QT)
My OS disk uses LVM and is encrypted. I've recently had an issue with it and want to reinstall Ubuntu without formatting my /home.
In the installer partitioner it shows 2x partitions, a 767MB partition, which is /boot and the rest.
If I mark the 767 MB partition as /boot and try to install it says no root filesystem is defined. If I mark it as / it says that the root partition needs to be at least 6.2GB.
How do I get around this?
Edit:
There doesn't seem to be any option in the partitioner to decrypt anything so I did so in Gnome.
I assigned /boot to the 767MB partition and / to /dev/mapper/vgubuntu-root which I didn't format as it has a size the size of the drive.
Install seemed to go OK but on booting to it I got dropped in a busybox shell. What causes this?
Is there a way to safely format / without risking my data?
In the installer partitioner it shows 2x partitions, a 767MB partition, which is /boot and the rest.
If I mark the 767 MB partition as /boot and try to install it says no root filesystem is defined. If I mark it as / it says that the root partition needs to be at least 6.2GB.
How do I get around this?
Edit:
There doesn't seem to be any option in the partitioner to decrypt anything so I did so in Gnome.
I assigned /boot to the 767MB partition and / to /dev/mapper/vgubuntu-root which I didn't format as it has a size the size of the drive.
Install seemed to go OK but on booting to it I got dropped in a busybox shell. What causes this?
Is there a way to safely format / without risking my data?