Hello, lubuntu-users@lists.ubuntu.com,
I have used Ubuntu since 2007. I typically use LUKS to encrypt my
root partition.
I decided to try Lubuntu as I use Openbox as my window manager, and I
have a 2011 laptop that is painfully slow running Ubuntu 20.04.
On Saturday, I performed three installations of Lubuntu 20.04 onto an
Intel NUC. All three installations failed to boot. I suspect the
failures were due, at least in part, to my attempts to encrypt my disk
via the Lubuntu installer.
Attempt #1:
At first, I could not find the option to enable encryption. So I
created a single btrfs partition to be the root partition. Then, upon
(re)editing that partition, I found the "encrypt" checkbox. So I
checked it. The installation completed. Upon attempting to boot, the
following prompt is displayed on the screen:
Attempting to decrypt master key...
Enter passphrase for hd0,gpt2 (<hex_sting>):
However, there was not blinking cursor, and nothing I typed on the
keyboard caused anything to change. I tried 3 different keyboards.
Pressing enter had no effect. Pressing Ctrl-Alt-Del would cause a
reboot.
Attempt #2:
Disk GPT partitioned as follows:
/dev/sda1 bios_boot
/dev/sda2 /boot unencrypted ext4
/dev/sda3 / luks encrypted btrfs
After the install, I rebooted. Kernel booted. Init ramdisk loaded.
The following message then displayed on the screen:
cryptsetup ERROR: luks-<uuid>: maximum number of tries exceeded
Then, after 30 seconds to several minutes, the message went away and
was replaced with a Busybox initramfs prompt.
Attempt #3:
Using the Lubuntu installer, I selected "erase entire disk". I then
selected the encryption option. Install completed. Upon reboot, the
results was the same as attempt #1. I could see the following
message:
Attempting to decrypt master key...
Enter passphrase for hd0,msdos1 (<hex_string>):
However, nothing I typed on the keyboard (except Ctrl-Alt-Del) had any effect.
----
I would consider myself an experienced Ubuntu user. I have
successfully used the Ubuntu installer many times to install onto GPT
disks with a "BIOS" partition to hold GRUB, an unencrypted /boot
partition, and an encrypted / (root) partition.
I have also written a shell script so that I can manually install
Ubuntu without using an installer. If you are curious, the script is
here:
https://github.com/parke/minibuntu/blob/master/minibuntu.sh
I hope you find the above feedback useful.
Cheers,
Parke
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