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Thanks all. Great ideas. I didnt realize that there was no direct path from 20.04 to 22.04 yet.

I think I will try a live image of 22.04 out of curiosity to see how it goes. It's a big...

I have a dell precision 7750 with the Dell-supplied ubuntu 20.04 installed. I am wondering about trying to get on Jellyfish (motivated most proximally by the desire to upgrade Evolution, as Jellyfish...

Hi all... just for the record, I managed to get it to work properly but I'm not quite sure how! Not sure if there is a bug, previously corrupt preference non-intuitive setting, or if I was just...

Hello, I am using the Cinnamon desktop environment, installed with #sudo install cinnamon-desktop

The desktop environment was behaving exactly as I wanted until recently... that is, pinned apps...

Hello... figured it out myself so I'll post the answer for posterity

The part I missed, following the tutorial, was that the ubuntu installer performed the final step of making a file system on...

i tried to post the results of


ls -la /dev/mapper

but I am getting vbulletin errors that I cant figure out... including "your post must be at least 1 character" as well as server errors...

In /dev/mapper I see


/dev/mapper$ ls
bigdrive bigdrive--vg-big_drive

Hello... I set up an external drive with an encrypted luks container, but I am having trouble mounting it.

In addition to the passphrase, I made a keyfile for it and added entries to crypttab and...

Thanks for the info oldfred. The explanation about the grub volume makes sense.

I was just using gparted to look at the volumes and see what's there, not to make changes.

I'm a backup fanatic...

Ok! Just following up for posterity... I managed to fix the system :)

Thought struck me that I mangled the initrd.img file, so I could restore that from backup. After mounting the /boot volume...

Ok I was able to use cryptsetup open to mount the boot and root drives manually, and I can see my files, including the boot_os.keyfile file that I overwrote initially.

I think I will go ahead and...

I tried to see if it was an issue with a "bad superblock" and did the following, doesnt seem fruitful:


root@ubuntu:~# fsck.ext4 -v /dev/nvme1n1p2
e2fsck 1.45.5 (07-Jan-2020)
ext2fs_open2: Bad...

Hello all,

I have gotten myself into a pickle, wondering if someone can help me get up and running again.

I set up my laptop with ubuntu 20.04 according to these instructions for whole disk...

Yup ubuntu-security-status --thirdparty worked...

I looked through the list of installed packages, they are all stuff I recognize and nothing from Linux mint.

I think I've fixed my issues....

OK I got rid of the two repositories which were in /etc/apt/sources.list/d that referred to linux mint... the "official-package-repository" or something like that, was sneaky and stealth but I...

Yes I'm sure I did it wrong... this is my first linux laptop and I have been flogging my way through things.

Cinnamon isn't installed any more, but indeed it appears to have been from a linux...

Howdy... I have gotten myself into a bit of a pickle.

Im running ubuntu 20.04, I was using the cinnamon desktop though, and had mintupdate installed associated with that.
Somehow my apt package...

thank you

well I removed it from /dev/mapper with dmsetup remove then opened it again with cryptsetup open, then I was able to mount again

well I thought I had succeeded, but looks like actually I messed everything up as I had feared.

After issuing the mkfs.ext4 command, the filesystem was there and worked fine, mounted where...

The complicating factors are the encryption system, auto-mounting on startup and with mount command, and my being a relative n00b.

I did the following and it seemed to work:

A)
unmount...

Howdy,

I have a few drives that I have been using for system backups. Im going to redo my backup scheme so I want to scrap everything that's on these drives already and start out fresh with empty...

Any possibility anyone might be able to help with this? :)

These threads may be of interest to you

https://discourse.ubuntu.com/t/can-we-get-real-full-disk-encryption/8802

https://ubuntuforums.org/showthread.php?t=2444360

Thank you for the tip.