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automatic bind mount/unmount (discuss.tchncs.de)
submitted 1 month ago* (last edited 1 month ago) by to c/linux4noobs@programming.dev
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I have bind mounts configured in my /etc/fstab. The source (i.e. where the files physically exist) is on a removable USB drive.

Right now it works but I have to mount/unmount everything individually when I plug/unplug the drive. I would like to be able to have the bind mounts follow the state of of the USB drive automatically.

Is there a way?

Edit here is relevant section of fstab:

/dev/mapper/external-crypt	/mount/external		auto	nosuid,nodev,nofail,x-systemd.device-timeout=5	0 0
/mount/external/realfolder	/home/user/folder	none	bind,nofail	0 0

So when I run sudo mount "/mount/external" I want sudo mount /home/user/folder to be implied; likewise for umount.

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[–] [S] 2 points 1 month ago*

Thunar file manager has volman. You can use it to manually unmount, including binds, but I'm not sure how to trigger it to know about them automatically. It's an extra step because it has to read the rest of the fstab file to find any dependencies and I don't know why it would do that.

I updated the OP to show my fstab

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