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-rw-r--r--src/nspawn/nspawn.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index eea994d0b3..3c31629d1e 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1013,6 +1013,9 @@ static int parse_argv(int argc, char *argv[]) {
return -EINVAL;
}
+ if (arg_userns && access("/proc/self/uid_map", F_OK) < 0)
+ return log_error_errno(EOPNOTSUPP, "--private-users= is not supported, kernel compiled without user namespace support.");
+
arg_retain = (arg_retain | plus | (arg_private_network ? 1ULL << CAP_NET_ADMIN : 0)) & ~minus;
if (arg_boot && arg_kill_signal <= 0)