Public bug reported:
It's not possible to install Xenial into an existing LUKS partition.
Before starting the graphical installer, I created and opened the LUKS
partition as /dev/mapper/root. In the manual "Prepare Partitions"
screen, /dev/mapper/root is shown as disk instead of partition. The
partitioner thus creates ANOTHER partition in my partition, which fdisk
shows as /dev/mapper/root-part1.
Once the original installation is complete, I reboot again into the
graphical installer image. When I open the LUKS partition as
/dev/mapper/root, fdisk shows a partition root-part1 inside
/dev/mapper/root. But I cannot mount this:
# mount /dev/mapper/root /mnt
-> wrong fs type, ...
# mount /dev/mapper/root-part1 /mnt
-> does not exist
# mount /dev/mapper/root/root-part1 /mnt
-> does not exist
# mount /dev/mapper/root1 /mnt
-> does not exist
Thus, the installation is borked and useless. The graphical installer
needs to handle existing LUKS partitions as partitions, not as disks.
Finally, note that the guided install is NOT an option, as I don't want
to rely on LVM.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1579490
Title:
Installer cannot install in open LUKS partition
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