LM 21.2 is Installed.
I had a hiccup on my first upgrade attempt
I have an instinct that the hiccup was possibly caused by a tiny glitch in the Internet connection...I am using the default Software Sources....I am in Australia. All things are possible.
The Updates simply said to me thta it had failed...please check the internet connection and try again
The second try went without drama or fanfare. Probably took around 3 - 4 minutes. required a reboot.
Easy as pie.
The error presented when it failed was:
Extracting templates from packages: 100%
(Reading database ... 438406 files and directories currently installed.)
Preparing to unpack .../base-files_21.2.0_amd64.deb ...
Unpacking base-files (21.2.0) over (21.1.1) ...
Setting up base-files (21.2.0) ...
Installing new version of config file /etc/issue ...
Installing new version of config file /etc/issue.net ...
Installing new version of config file /etc/lsb-release ...
motd-news.service is a disabled or a static unit not running, not starting it.
dpkg: error: dpkg frontend lock was locked by another process with pid 13639
Note: removing the lock file is always wrong, and can end up damaging the
locked area and the entire system. See <
https://wiki.debian.org/Teams/Dpkg/FAQ>.
E: Sub-process /usr/bin/dpkg returned an error code (2)
A package failed to install. Trying to recover:
Processing triggers for cracklib-runtime (2.9.6-3.4build4) ...
Processing triggers for plymouth-theme-ubuntu-text (0.9.5+git20211018-1ubuntu3) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for mintsystem (8.5.5) ...
Processing triggers for install-info (6.8-4build1) ...
Processing triggers for man-db (2.10.2-1) ...
Processing triggers for initramfs-tools (0.140ubuntu13.2) ...
update-initramfs: Generating /boot/initrd.img-5.15.0-76-generic
...all of which is behind me now....it updated successfully on the second run
Note:...Do Not Panic. Just follow the prompts. Do not be in too much of a hurry to click on next or apply....give it 10 seconds....it may well begin another download.