How to resize Linux encrypted partition
Created on: 2019-02-08 (Fri)
Starting conditions:- Running xUbuntu 18.04 and wanting to resize swap parition.
- Entire extended partition has been encrypted with LUKS dm-crypt.
Summary: G-Parted doesn't support LUKS encryption will use KDE Partition Manager instead.
| Step | Description |
|---|---|
| 1. Boot off xUbuntu Live CD. |
|
| 2. Select "Try Xubuntu" | |
| 3. Connect to a network (i.e. Wifi) | |
| 4. Open a "Terminal emulator" | |
|
5. Install partitionmanager (about 160MB) > sudo apt update > sudo apt install partitionmanager |
|
|
6. Run partitionmanager as su > sudo partitionmanager |
|
| 7. Right click on the encrypted parition and click "decrypt". Enter the encryption password. |
|
| 8. Go to "Tools" and click on "Refresh devices". | |
| 9. From the "Devices" list on the left hand side select the newly decrypted parition. | |
| 10. In the main window right click on the partition you want to resize and click "Resize/Move". |
|
| 11. Resize the partition to desired dimensions and then click "OK". | |
| 12. In the top left corner of the Partition Manager app click on "Apply" and then confirm by clicking on "Apply Pending Operations" |
|
| 13. Confirm the resize and close Partition Manager and reboot in normal mode. |
QED.