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How to unmount a recursive bind mount - safely [duplicate]

Please take care that you have no unsaved work if you test this. I ran this command as an experiment, but how can I undo it without rebooting? # mount --rbind / /mnt What I have tried # umount /...
0
votes
1answer
100 views

Lazy unmount root jail drives

I have created a root jail containing rpm and yum (centos 7.5) to install some software on the original system. Workflow Mount sys, proc, dev to the root jail Mount root of the original system "/" ...
1
vote
1answer
466 views

How to unmount a mountpoint with rbind and rslave?

Trying to use a chrooted system via mount -B stage3 gentoo mount -t sysfs none gentoo/sys mount -t proc none gentoo/proc mount -R /dev gentoo/dev mount --make-rslave gentoo/dev unshare --fork chroot ...
10
votes
1answer
2k views

Unmount a rbind mount without affecting the original mount

Asked on serverfault but didn't get enough attention, so reposted here, with the hope some people here know the answer. There is another question discussing about umounting rbind mounts, but the ...
5
votes
1answer
3k views

Two *different* mountpoints having the *same* absolute path (bind-mount problem)

Scenario a NFS share is mounted on /mnt/temp/dir (and other shares are mounted in subdirectories), I umount everything there but supposedly, it doesn't work well (maybe I start with umount /mnt/temp/...