Re: Making a partition larger without affecting my OS.

Michael <[email protected]> Sat, 14 Mar 2026 17:10:05 +0000
Newsgroups	gmane.linux.gentoo.user
Message-ID	<2405204.ElGaqSPkdT@rogueboard>
On Saturday, 14 March 2026 14:06:41 Greenwich Mean Time Dale wrote:
> Howdy,
> 
> As some know, on my old and new rig, I compile my updates in a chroot
> environment.  Then I copy the binaries over and use the -k option on
> my running OS.  That way I don't have a crash when one program is
> updated and another it depends on is not yet updated. Anyway, my
> chroot is getting squeezed a little.  I need to expand it another
> 30GBs or so so that I don't get not enough space errors. It's only
> the largest packages right now but the next larger ones are growing
> and will start having issues as well.  I have a m.2 stick for my OS. 
> It's a 1TB stick.  I have plenty of space unused. I did the OS first
> and then did a partition for the chroot thingy. The partition named
> build-part is the chroot. The parts above it are the OS.  This is the
> current layout.
> 
> 
> 
> Part. #     Size        Partition Type            Partition Name
> ----------------------------------------------------------------
>              1007.0 KiB  free space
>     1        2.0 GiB     EFI system partition      efi-part
>     2        10.0 GiB    Linux filesystem          boot
>     3        400.0 GiB   Linux filesystem          root-part
>     4        180.0 GiB   Linux filesystem          var-part
>     5        150.0 GiB   Linux filesystem          build-part
>              189.5 GiB   free space
> 
> 
> 
> I think I can just delete the partition for build-part and then add a
> new partition that is larger, then do a file system and rsync the
> files back over.

Yes, you could delete and recreate the last partition in the table, but 
this sounds like a lot of extra (unnecessary) work.


> My question, thing I want to be sure of, if I
> delete that and re-add it, that will not affect my OS at all? Right? 
> I may do a back up first but still, I'd like to be sure this is at
> least doable and not risky.

Any interaction with partitions can result in loss of data, so a fresh 
backup at least of the partition table before you start any resizing/
deleting/creating partitions is advisable.


> I'll be using cgdisk and the usual file
> system tools for this.  I'm assuming I'll have to recreate the file
> system and such.
> 
> Thanks in advance.
> 
> Dale
> 
> :-)  :-)

I suggest you unmount partition 5, then use parted (or if you prefer a 
GUI try gparted, or the KDE Partition Manager) to resize the end point 
of it.  If you use parted on the CLI you will additionally need to 
increase the size of the filesystem within the partition after the 
partition has been resized.
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