During install fromm 22.04 media selected button (Do something different)

[Liam Proven]

On Sun, 26 Jun 2022 at 17:28, hput <hput3 at fastmail.fm> wrote:
>
> Installing from 22.04 media

Installing or upgrading?

> ... after selecting the zfs option.
> There is a choice to proceed or a second
>   choice {X} "Do something else"

Normally at this point it hasn't created any partitions yet.

> It also says changing parition sizes and more I don't have at hand.

With all due respect, make sure that you do, before asking.

> Choosing that button... I'm trying to resize the main partition of the
> the 4 the installer makes.
>
> Using Gparted (as root).  Attempting to resize the main partition of
> some 220 GB.

"Main partition" is not a Linux term. Do you mean the root partition?
If so, that is very very big.

In the region of 10× what I'd normally use.

> I want to shrink the main partition but the option to resize although
> available to choose, once choosen in Gparted... the option to resize
> id greyed out

Did you Google this before you asked?

ZFS partitions cannot be shrunk. The filesystem does not support that.
Nothing can do it. Same with XFS, IIRC.

> I don't understand why gparted would have important choices greyed
> out.

If it is an important choice, then surely a reasonable response would
be to find out why before asking, no?

> Is there any way to modify the partitions the installer creates?

Sure. Create your own. "Do something else" in most installers.

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