[Errors] Dolphin partition properties showing incorrect size

[shawon]

Hi! I just installed Kubuntu for the first time and updated the system, I was exploring different components of the OS. While checking properties of root partition from the context menu, after calculating, it's showing the total size is 128.0 TiB! What I gathered from different sites, it's probably a KDE/ Dolphin issue. Now, is there a way to fix this or is it just a known bug? Can anyone kindly confirm me this?

Relevant info:
Description: Ubuntu 20.04.3 LTS
plasmashell 5.18.5
lsblk output

Let me know, if anything else is required.
Thanks.

[jlittle]

Ho! I get that too. Is your root file system on a btrfs? Running snapper, or a tool like it?

A bit of investigation, /proc is the culprit. /proc is a pseudo file system, in that it's contents are generated dynamically from various information the OS has about processes. It's certainly not 128 TiB; from a storage perspective it's zero. IMO dolphin should ignore it if calculating the size to show on a properties pop up, and /sys too.

With btrfs, calculating sizes of snapshots is very complicated because every snapshot starts sharing almost all the storage of the subvolume that is snapshotted. After a few dozen snapshots, who owns what?

[shawon]

No, on both end. I used ext4 for both Linux partitions, and no, I haven't setup any backup/ snapshot utility yet. Here's the partition info, if that helps. btrfs seemed too complicated!

Also, thanks for the prompt response.

[vinnywright]

same hear , but the context menu dose show the correct size of the disk , strange the same size misinformation for all of us lol


theirs no partitions it's a hole disk BTRFS file system , so slightly different case scenario , 250GB SSD

vinny@vinny-bonox8:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            7.8G     0  7.8G   0% /dev
tmpfs           1.6G  1.6M  1.6G   1% /run
/dev/sdc        233G   48G  184G  21% /
tmpfs           7.8G     0  7.8G   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
/dev/sdc        233G   48G  184G  21% /home
/dev/sda5        55G   27G   25G  52% /mnt/vm
/dev/sdb1       932G  718G  214G  78% /mnt/storage
tmpfs           1.6G   12K  1.6G   1% /run/user/1000
vinny@vinny-bonox8:~$ sudo parted -l
[sudo] password for vinny:  
Model: ATA HGST HTS725050A7 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:  

Number  Start   End    Size    Type      File system     Flags
1      8225kB  323GB  323GB   primary   btrfs           boot
3      323GB   379GB  56.3GB  primary   ext4
4      379GB   496GB  117GB   extended
6      379GB   436GB  57.0GB  logical   ext4
5      436GB   496GB  59.8GB  logical   ext4
2      496GB   500GB  4295MB  primary   linux-swap(v1)


Model: ATA HGST HTS721010A9 (scsi)
Disk /dev/sdb: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:  

Number  Start   End     Size    File system  Name     Flags
1      1049kB  1000GB  1000GB  btrfs        primary


Model: ATA Samsung SSD 860 (scsi)
Disk /dev/sdc: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:  

Number  Start  End    Size   File system  Flags
1      0.00B  250GB  250GB  btrfs

VINNY