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Rosika 11-18-2018 07:19 AM

what to consider when performing a clean-install
Hello altogether,

as my system Lubuntu 16.04.5 LTS, 64 bit gets its updates only util April next year Iīll eventually have to deal with the topic of upgrades or clean-install.

Iīve been collecting opinions and views and it seems that to avoid any potential difficulties after an upgrade a clean-install would be the way to go.

Iīve got three partitions on my system: /-partition, /home-partition and a third partition for the data of my virtual machines.

According to the info I got on itīs possible to retain the /home-partition with a clean-install. I think thatīs valid for my third partition as well.

So itīs basically the /-partition which is created afresh.
In order to produce a list of the programmes that are manually installed on my current system I use the command


comm -23 <(apt-mark showmanual | sort -u) <(gzip -dc /var/log/installer/initial-status.gz | sed -n 's/^Package: //p' | sort -u)
and after installing bionic I restore them with


xargs -a /path/to/list sudo apt-get install
BUT: Iīm sure there are a few other things to be taken into consideration. After thinking about it for a while I came up with:

- I have programmes installed as snaps......
- what about keys for enigmail used in thunderbird?
- changes in the fstab-file
- /usr/local/bin: Iīve put some scripts in there
- what about my printer configuration?

Plus: Iīm sure there are some other things I havenīt thought of.

Addressing those of you who have experience in performing a clean-install:

How do you go about it? Is there something else important to consider?

Thanks a lot in advance.

Rosika :study:

pan64 11-18-2018 08:24 AM

you need to save your local settings (some files under-inside /etc for example). Your home will not be modified, but probably you need to reconfigure your apps like mailer - but actually you know your system and you know what to save. (if you have a database, if you have <whatever> installed and customized...)

Reinstalling packages may or may not work, sometimes the name of the packages are modified/renamed or just a different one required on the new system.

Rosika 11-18-2018 08:51 AM

Hello pan64,

thanks for your reply.

Yes, itīs actually true that I have to know the things I installed/modified etc. myself.
Yet when I first started to use Lubuntu as my productive system I was a novice after all. So there are certainly things I havenīt jotted down as I would do today.

/etc is worth taking care of. Thanks for pointing that out.

I think itīs a good thing that I make system-backups with clonezilla on a monthly basis, and certainly before a clean-install.
So with the workaround to produce a mountable img from a clonezilla backup described on
it should be possible to access any data from the old /-partition afterwards if need be.

Thanks again.


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