https://bugs.kde.org/show_bug.cgi?id=431628
Bug ID: 431628
Summary: partitionmanager does not wipe old signatures when
creating a new partition table
Product: partitionmanager
Version: Git
Platform: Debian testing
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: andr...@stikonas.eu
Reporter: m.wegh...@posteo.de
Target Milestone: ---
SUMMARY
partitionmanager does not wipe old signatures when creating partition table.
STEPS TO REPRODUCE
1. insert USB drive
2. download a CD ISO image, e.g.
https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.7.0-amd64-netinst.iso
2. copy the image to the USB drive using dd, command if USB drive is /dev/sda:
sudo dd if=/path/to/debian-10.7.0-amd64-netinst.iso of=/dev/sda
3. in partitionmanager, create a new partition table for the USB device
3.1. right-click on the USB device
3.2. select -> "New Partition Table"
3.3. leave default selection "GPT" and click "Create New Partition Table"
3.4. click the "Apply" button, and "Apply Pending Operations"
4. check signatures on the device, e.g. run 'sudo file -s /dev/sda'
OBSERVED RESULT
output is:
$ sudo file -s /dev/sda
/dev/sda: ISO 9660 CD-ROM filesystem data (DOS/MBR boot sector) 'Debian 10.7.0
amd64 n' (bootable)
EXPECTED RESULT
There should be no more "iso9660" signature after a new partition table has
been created.
The output should be something like:
$ sudo file -s /dev/sda
/dev/sda: DOS/MBR boot sector; partition 1 : ID=0xee, start-CHS (0x0,0,2),
end-CHS (0x3ff,255,63), startsector 1, 15633407 sectors, extended partition
table (last)
SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.2
Kernel Version: 5.10.0-1-amd64
OS Type: 64-bit
Processors: 12 × Intel® Core™ i7-9850H CPU @ 2.60GHz
Memory: 62.4 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630
ADDITIONAL INFORMATION
* Not wiping the signatures also leads to the device's partitions not properly
being shown in gparted after taking the above steps + creating partitions in
partitionmanager, then starting gparted (e.g. an actual FAT32 partition is
shown as having file system "iso9660" instead).
* Reproducible using kpmcore master as of commit
31706cffdc1df60b96010fbbdbbdc6ec192fd913 and partitionmanager as of commit
42c46fa67425c3bffb864a1056e56688e2fd3784.
* I have investigated this and plan to submit a MR for kpmcore that fixes this
bug.
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