24.04: installer, disk encryption, power management: ubuntu going backwards in big steps?

[Volker Wysk]

Am Montag, dem 09.09.2024 um 22:14 +0200 schrieb Josef Wolf:
> Intro:
> ======
> 
> I was using ubuntu (and suse) with full disk encryption and working power
> management for many years now. Never have had any problems up to 18.04.
> 
> Starting with the subiquity based installer (which was introduced in 20.04
> server install image, AFAIR) all of this stopped working.
> 
> For sure, none of the developers have actually tried to use the subiquity
> based installer to rearrage partitioning of the disk or for creating luks
> based partitions.
> 
> Long story:
> ===========
> 
> First, they broke the installer, so that it is no longer possible to
> delete
> partitions, so there is no way to repartition the disks (check thread
> starting
> with
> https://lists.ubuntu.com/archives/ubuntu-users/2023-April/310142.html)
> In 24.04, it is STILL not possible to delete existing partitions. So there
> is
> no sane way to repartition a disk.

There's an insane way: Leave the installer and start GParted.

> (...)

Sorry, I haven't read the whole thread carefully, but I tried it out in a
virtual machine. 

I was able to create LVM based encryption. Therefore you need to chose
"erase disk and install Ubuntu" and select "Avanced features" and "Use LVM
and encryption". This worked my virtual machine, but I had have trouble with
LVM when I did it this way in the past. (It looks like you can have only one
physical volume pool.) In 22.04 you could set up an encrypted disk without
LVM (with "Something different").

There's a second option under "Advanced features": "Erase disk and use ZFS
with encryption". I have no idea what ZFS is, except that it's a file
system. I've tried that too. And it worked too.

I'm unhappy with this state of affairs, like you. Maybe I'll switch to
another distribution, if I should have to install from scratch again.

Cheers,
Volker