Cannot create partition on second partition, still

cryptotager · January 10, 2026, 3:36pm

I am running Linux Mint 22.2.
I’ve got the Flatpack version of Cryptomator installed (1.18.0)
I have a 2nd partition formatted Ext4 on the same physical disk as /
I have granted Cryptomator “modify and read” to the 2nd partition:

Cryptomator is still unable to see this location when I attempt to create a vault:

< I’m not allowed to add a second screenshot, but when I click “Browse” in Cryptomator to create a vault, the 2nd partition still does not show up. >

I’ve rebooted & tried again, still no 2nd partition. Not sure what else is needed. This looked to be so easy.

Thanks

cryptotager · January 10, 2026, 4:29pm

Not the greatest “blush” emoji, but…

So, IT IS THIS EASY!
Make sure you are using the Flatpack version of Cryptomator for this workaround:

github.com/flathub/org.cryptomator.Cryptomator

Unable to mount from external or network drive

opened 02:43PM - 09 Dec 22 UTC

infeo

documentation

## Description If the vault is not located in the user home directory, it canno…t be chosen in the file picker dialog started by Cryptomator. Additionally, already existing vaults (i.e., added over the appimage) are not found, if not located in the home dir. ## Reason Cryptomator flatpak is restricted to [only access the user home directory](https://github.com/flathub/org.cryptomator.Cryptomator/blob/1ec15d8651ebf9a9dd6ed074c2fd584c903d4fa2/org.cryptomator.Cryptomator.yaml#L12). ## Solution Ensure Cryptomator is not running and then override the option with one of the following: You can give the Cryptomator Flatpak complete access to your host file system, with the following command: ``` sudo flatpak override org.cryptomator.Cryptomator --filesystem=host ``` You can also only state where on the file system Cryptomator Flatpak should have access (e.g. to a specific directoy): ``` sudo flatpak override org.cryptomator.Cryptomator --filesystem=/media/my_thumb_drive ``` You can provide multiple filesystem options, so you could do any number of mount points, for example: ``` sudo flatpak override org.cryptomator.Cryptomator --filesystem=/media/festplatte --filesystem=home ``` If you prefer to use a GUI tool, you can use [Flatseal](https://flathub.org/apps/details/com.github.tchx84.Flatseal) to modify the permission accordingly. Taken from https://community.cryptomator.org/t/cryptomator-flatpak-doesnt-find-safes/9613/2?u=infeo

Also! Make sure you not only close Cryptomator after making the change but ALSO that it is not still running/set to run at startup (not showing in the Panel System Tray).

Doh…