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hmmmm...I thought that the command
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lvwould extend the encrypted volume, and this commandsudo resize2fs /dev/ubuntu-vg/ubuntu-lvwould extend the filesystem.I realize now i may have been confused as you didn't specify everything.Is the LUKS volume created right on the disk on a raw partition?
Yes. I'm sorry for the confusion and incomplete info. I'm flying a little blind here. The first two commands in the OP were to check what I have, and the last two were to extend the LUKS and then the filesystem.
I saw in another comment your lsblk output and yes I see the LUKS partition spans the whole disk.
So yes, the commands you listed should be sufficient. It will extend the decrypted logical volume to use the remaining free space of your volume group.
Thank you very much for your patience in trying to tweeze out all the proper info out of me. I feel like a slightly educated dumbass now. LOL Thanks again.
You are aware that you don't have all the information and that trying it yourself could cost you significantly more time than asking for help. Doesn't sound like dumbass behavior to me :)
lv* commands are for LVM logical volumes. They're not related to LUKS. Unless your LVM "physical" volume is on a LUKS encrypted device, you aren't using LUKS. You'll need to make the LUKS encrypted PV larger before you can grow your LV.
Unless your PV is already taking up the whole disk, in which case whether it is LUKS encrypted or not is irrelevant and the question you want to be asking is "how do I resize my LVM LV to fill the rest of my LVM PV?", which is probably what the commands you have do.
Again, apologies for my confusion and not being able to articulate coherently or precisely.