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partition mounted at /home is 250+ GB, but all apps and fs analyzers running on /home say it is only 62 GB "apparent size". Any ideas before I nuke the partition? (feddit.nl)

submitted 2 years ago by [email protected] to c/[email protected]

5 comments fedilink hide all child comments

Pop!_OS 22.04
on a 500GB SATA SSD
separate partitions with ext4 fs for the root and /home partitions.

I have Googled a lot, resized the home partition and filesystem a few times (from a liveboot USB) and run various analyzers but the problem persists.

Some output:

pop-os@pop-os:/media/pop-os$ sudo resize2fs /dev/sda3
resize2fs 1.46.5 (30-Dec-2021)
Please run 'e2fsck -f /dev/sda3' first.

pop-os@pop-os:/media/pop-os$ cd a358cafe-a2a3-46a4-ba33-0a82e88fb157/ &amp;&amp; sudo ncdu || cd ../
pop-os@pop-os:/media/pop-os$ sudo lsblk /dev/sda3 -o size
 SIZE
 271G
pop-os@pop-os:/media/pop-os$ sudo e2fsck /dev/sda3
e2fsck 1.46.5 (30-Dec-2021)
/dev/sda3: clean, 264256/17768448 files, 8195768/71048094 blocks
pop-os@pop-os:/media/pop-os$ df -h --out=size a358cafe-a2a3-46a4-ba33-0a82e88fb157/
 Size
 266G

ncdu, du show 62 GB and Steam says similarly that there is no space to install games.

When I resize the partition and filesystem, it does show less remaining size. Resizing back to 290 GB, the max is still ~62 GB total apparent space.

Any ideas before I nuke the partition and move my data into a fresh one?

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[–] [email protected] 1 points 2 years ago (1 children)

Thank you so much for your helpful response! 💜

If I understand you correctly, then my applications would be looking at the /home folder on the root filesystem, which is <100 GB, unable to see the larger partition mounted in /home underneath it. I can check by mounting the root fs but not the home partition from a live iso and checking for a /home in the contents of the root fs.

If I find what I expect there, the following should fix it:

move the files out of the /home folder to a backup location
delete /home folder in root fs
move files to large partition to be mounted in /home

Only thing I might have to check if it does not work is if this /home mount will then happen on booting the actual OS.

The second scenario does not ring a bell, but I'll keep it in mind in case this does not work.

[–] [email protected] 2 points 2 years ago (1 children)

I would unmount /home and verify that the directory is empty.

On a unrelated note I have been using btrfs with subvolumes and it works pretty well

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago) (1 children)

Unfortunately, /home/myusername really does live on the big partition. When I mount root only (from the live ISO, mountedroot/home is empty @[email protected] @[email protected]

I give up. I am nuking this partition and in the process hopefully resetting what is wrong with it, then dropping the 30GB of files back in from the backup.

[–] [email protected] 1 points 2 years ago

That's probably the right answer