Comment # 51 on bug 937237 from Jan Engelhardt

Indeed, chroot has some effect.


# chroot /var/lib/containers/g2
# mount -t proc proc /proc
# cat /proc/mounts
proc /proc proc rw,relatime 0 0
# exit

One can workaround this by creating a new vfsmount:

# mount --bind g2 g3
# chroot g3
# mount -t proc proc /proc
# cat /proc/mounts
/dev/md4 / xfs rw,relatime,attr2,inode64,noquota 0 0
proc /proc proc rw,relatime 0 0