"Can't mount proc on /newroot/proc: Operation not permitted" if /proc/fs/nfsd is mounted #538

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fenryxo opened this Issue Feb 7, 2017 · 3 comments

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@fenryxo
fenryxo commented Feb 7, 2017

I cannot run flatpaks on Debian Jessie (Flatpak 0.6.14) when /proc/fs/nfsd is mounted:

$ mount | grep nfsd
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
$ flatpak run ...
Can't mount proc on /newroot/proc: Operation not permitted
$ sudo umount /proc/fs/nfsd
$ flatpak run ...
# Everything ok
@alexlarsson
Member

I believe this is a similar issue to projectatomic/bubblewrap#134

@alexlarsson
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(But that one is for xen)

@alexlarsson
Member

Both are kernel-level bugs really. They need to create the proc mountpoint with proc_create_mount_point instead of proc_mkdir

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