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Usage:
Options:
display version display this help -V, --version -h, --help %-27s%s
%-27s%s
For more details see %s.
unshare(1) %s from %s
util-linux 2.37.4 +fhVmuinpCTUrR:w:S:G:c pipe failed fork failed failed to read pipe unshare failed waitpid failed child exit failed prctl failed /proc/self/uid_map /proc/self/gid_map none cannot chdir to '%s' mount %s failed setgroups failed setgid failed setuid failed capget failed capset failed prctl(PR_CAP_AMBIENT) failed failed to execute %s SHELL cannot duplicate string slave private shared unchanged HUP INT QUIT TRAP ABRT IOT BUS FPE KILL USR1 SEGV USR2 PIPE TERM STKFLT CHLD CLD CONT STOP TSTP TTIN TTOU URG XCPU XFSZ VTALRM PROF WINCH IO POLL PWR SYS mount pid fork kill-child mount-proc map-user map-group map-root-user map-current-user propagation keep-caps setuid setgid root wd monotonic boottime ns/user ns/cgroup ns/ipc ns/uts ns/net ns/pid_for_children ns/time_for_children failed to open /proc/self/timens_offsets failed to write to /proc/self/timens_offsets unsupported --setgroups argument '%s' unsupported propagation mode: %s failed to parse monotonic offset failed to parse boottime offset %s [options] [<program> [<argument>...]]
Run a program with some namespaces unshared from the parent.
-m, --mount[=<file>] unshare mounts namespace
-u, --uts[=<file>] unshare UTS namespace (hostname etc)
-i, --ipc[=<file>] unshare System V IPC namespace
-n, --net[=<file>] unshare network namespace
-p, --pid[=<file>] unshare pid namespace
-U, --user[=<file>] unshare user namespace
-C, --cgroup[=<file>] unshare cgroup namespace
-T, --time[=<file>] unshare time namespace
-f, --fork fork before launching <program>
--map-user=<uid>|<name> map current user to uid (implies --user)
--map-group=<gid>|<name> map current group to gid (implies --user)
-r, --map-root-user map current user to root (implies --user)
-c, --map-current-user map current user to itself (implies --user)
--kill-child[=<signame>] when dying, kill the forked child (implies --fork)
defaults to SIGKILL
--mount-proc[=<dir>] mount proc filesystem first (implies --mount)
--propagation slave|shared|private|unchanged
modify mount propagation in mount namespace
--setgroups allow|deny control the setgroups syscall in user namespaces
--keep-caps retain capabilities granted in user namespaces
-R, --root=<dir> run the command with root directory set to <dir>
-w, --wd=<dir> change working directory to <dir>
-S, --setuid <uid> set uid in entered namespace
-G, --setgid <gid> set gid in entered namespace
--monotonic <offset> set clock monotonic offset (seconds) in time namespaces
--boottime <offset> set clock boottime offset (seconds) in time namespaces
Try '%s --help' for more information.
options --monotonic and --boottime require unsharing of a time namespace (-t) options --setgroups=allow and --map-group are mutually exclusive cannot change root filesystem propagation cannot change root directory to '%s' cannot change %s filesystem propagation N
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