Bug 453388

Summary:	Unable to empty the volume label of FAT32.
Product:	[Applications] partitionmanager	Reporter:	daiaji <hentaiwushuang>
Component:	general	Assignee:	Andrius Štikonas <andrius>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	22.04.0
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
Latest Commit:	https://invent.kde.org/system/kpmcore/commit/fd4a3308879fcf4e59c3f9c199c28c95d04440f5	Version Fixed/Implemented In:	22.08.0
Sentry Crash Report:

Description daiaji 2022-05-04 13:59:28 UTC

SUMMARY
***
Unable to empty the volume label of FAT32.

sudo fatlabel /dev/disk/by-partlabel/ESP ""
fatlabel: labels can't be empty or white space only

I guess it's because of dosstools v4 2 added new restrictions.

sudo fatlabel -r /dev/disk/by-partlabel/ESP

The R parameter is very useful.

***


STEPS TO REPRODUCE
1. Set the volume label with empty content for FAT32.

OBSERVED RESULT
The volume label is not empty.

EXPECTED RESULT
The volume label is empty.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 daiaji 2022-05-06 03:41:10 UTC

It's actually the partition manager that can't clear the FAT32 volume label.
As for the part of dosstools, I just speculate that it may be because the partition manager may use dosstools.

Comment 2 Andrius Štikonas 2022-05-15 22:21:32 UTC

Git commit fd4a3308879fcf4e59c3f9c199c28c95d04440f5 by Andrius Štikonas.
Committed on 15/05/2022 at 22:20.
Pushed by stikonas into branch 'master'.

Allow setting empty FAT label.

This breaks compatibility with dosfstools 4.1

M  +2    -3    src/fs/fat12.cpp

https://invent.kde.org/system/kpmcore/commit/fd4a3308879fcf4e59c3f9c199c28c95d04440f5