https://bugs.kde.org/show_bug.cgi?id=393397
--- Comment #27 from Teddy <report...@mailna.biz> --- More information why it may fail: The operation "Deactivate Volume Group" tries to umount also /dev/mapper/luks-xxxxx when it should umount only "ubu-root" and "ubu-swap". umount "/dev/mapper/luks-xxxxx" is reserved to Lock the encryption again I think. Running the command "cryptsetup luksOpen /dev/sdc2 sdc2-crypt", besides unlocking luks, also activates the luks volumes, I've tried it. The problem is that when I "Deactivate Volume Group" the "Activate Volume Group" is not present because luks-xxxxxx (sdc2-crypt) is missing from /dev/mapper. Please check how gparted does, it works perfectly for Activate/Deactivate luks volumes (although doesn't have the Decrypt option and doesn't show ubu either on the list of devices). -- You are receiving this mail because: You are watching all bug changes.