Bug 512003

Summary: Copying dynamic RAW disk image
Product: [Applications] dolphin Reporter: Bane K. <banekondic1996>
Component: generalAssignee: Dolphin Bug Assignee <dolphin-bugs-null>
Status: REPORTED ---    
Severity: normal CC: dolphin-bugs-null
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Bane K. 2025-11-12 17:45:56 UTC 
Well basically i have 1TB raw disk image file (.img) encrypted with LUKS. 
When mounted it's 200GB in actual size.
Problem is i can't copy it to any partition that's less then 1TB, even if it's not taking that much space.
For example i want to copy it to 512Gb partiton i have or to my external ssd that's 512gb,
but with Dolphin i can't because, it says, there's no space. But using terminal i can copy it.

STEPS TO REPRODUCE
1.  Create dynamic image file using "truncate -s 1024G disk.img" on partiton that's less then 1TB
2.  Use "sudo cryptsetup luksFormat disk.img" to encrypt it. Not sure is this command i used, but it's LUKS encrypted
3. Now copy it to any partition that's less then 1TB using Dolphin.

OBSERVED RESULT
Observed result is that Dolphin complains about no disk space.

EXPECTED RESULT
Expected result is for Dolphin to check actual disk image size and copy

SOFTWARE/OS VERSIONS
Dolphin version: 24.12.3
Linux/KDE Plasma: Ubuntu 25.04
KDE Plasma Version:  6.3.4
KDE Frameworks Version:  6.12.0
Qt Version: 6.8.3
Kernel: 6.14.0-15-generic (64-bit)