Can't complete installation of lubuntu

[skorupion]

So I am trying to install lubuntu 19.10 amd64, but before it I had lubuntu 16.4 i386 and it shows me an option of replacing a partition, but I can't go to the next step (the next button is Grey) what should I do?
https://zapodaj.net/fefc1726a220c.jpg.html picture of my screen

[CelticWarrior]

Assuming you already have backups like you should, please select "erase disk" instead.

[skorupion]

Ain't working https://zapodaj.net/ec0ec84dd3583.jpg.html

[CelticWarrior]

First of all, any special reason for you to post upside down pictures?

Now, regarding the issue itself, the drive is probably failing.
In the live session you can open Disks and check the drive's health.

[skorupion]

Sorry for posting it upside down second, I was able to install the old lubuntu and it was working, plus I am unable to find the section of where I can see the drive health, but it should be fine.

[Impavidus]

Instead of replacing a partition, have you tried manual partitioning? It should allow you to do the same thing, without the computer guessing what you want.

Is there any special reason why you install 19.10? It only has 3 months of support left. 20.04 has 3 years of support. Lubuntu 16.04 reached end of life a year ago.

[guiverc]

The error reminds me of https://bugs.launchpad.net/ubuntu/+source/calamares/+bug/1864787 which is mentioned in the Lubuntu 20.04 release notes (refer https://lubuntu.me/focal-released/) in the Known Bugs section.

I'd suggest the work-around that is described there "Replace Partition on Certain Partition Schemes With Calamares Fails" (or from the aforementioned bug report, though it'll be easier to understand the release notes I bet).

There are a couple of issues with the `calamares` installer that certain hardware & partitioning can 'trigger', I'm hoping that workaround will resolve it for you. FYI: The text mentions ext4 & btrfs being tested, other file-systems were tested too (eg. xfs, reiserfs..) so use whichever you prefer.

PS: I know you're asking about 19.10, I recall issues occurring there too, but it was awhile ago so the focal [20.04] issues are more prominent in memory than eoan [19.10] ones (about four bugs exist, all are similar)

[CelticWarrior]

And 19.10 has only a few months of support left so there's really no point in installing it now.