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The source of the root mount may be not equal to "/" and we need to take this fact into account, when we bind-mount it to somewhere. For example: 11877 ? Ss 0:00 ./bind-mount --pidfile=bind-mount.pid --outfile=bind-mount.out --dirname=bind-mount.test 11880 ? Ss 0:00 \_ ./bind-mount --pidfile=bind-mount.pid --outfile=bind-mount.out --dirname=bind-mount.test [root@avagin-fc19-cr crtools]# cat /proc/11880/mountinfo 68 42 8:3 /root/git/crtools/test / rw,relatime - ext4 /dev/sda3 rw,data=ordered 43 68 0:33 / /proc rw,relatime - proc proc rw 44 68 0:34 / /dev/pts rw,relatime - devpts pts rw,mode=666,ptmxmode=666 45 68 8:3 /root/git/crtools/test/zdtm/live/static/bind-mount.test/test /zdtm/live/static/bind-mount.test/bind rw,relatime - ext4 /dev/sda3 rw,data=ordered The 45 mount is bind-mount of the 68 mount. mi(45)->root = /root/git/crtools/test/zdtm/live/static/bind-mount.test/test mi(68)->root = /root/git/crtools/test so the comman part is "/root/git/crtools/test" and the command is mount --bind /zdtm/live/static/bind-mount.test/test /zdtm/live/static/bind-mount.test/bind Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
criu ==== An utility to checkpoint/restore tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space. The project home is at http://criu.org Pages worth starting with are * Kernel configuration, compilation, etc: http://criu.org/Installation * A simple example of usage: http://criu.org/Simple_loop * More sophisticated example with graphical app: http://criu.org/VNC