unmount filesystem NAME umount, umount2 - unmount filesystem LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/mou...unmount filesystem NAME umount, umount2 - unmount filesystem LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/mou......eeding to create and remove a temporary directory: chdir(new_root); pivot_root(".", "."); umount2(".", MNT_DETACH); This sequence succeeds because the pivot_root () call stacks …overview of Linux mount namespaces NAME mount_namespaces - overview of Linux mount namespaces DESCRIPTION For an overview of namespaces, see namespaces (7). Mount namespaces provid…....4.22 truncate (2) 1.0 truncate64 (2) 2.4 ugetrlimit (2) 2.4 umask (2) 1.0 umount (2) 1.0 umount2 (2) 2.2 uname (2) 1.0 unlink (2) 1.0 unlinkat (2) 2.6.16 unshare (2) 2.6.16 use…