--- Changes in v2: - show long explanation only when errno == EROFS src/core/machine-id-setup.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/core/machine-id-setup.c b/src/core/machine-id-setup.c index efb074f..2360904 100644 --- a/src/core/machine-id-setup.c +++ b/src/core/machine-id-setup.c @@ -191,7 +191,14 @@ int machine_id_setup(const char *root) { else { fd = open(etc_machine_id, O_RDONLY|O_CLOEXEC|O_NOCTTY); if (fd < 0) { - log_error("Cannot open %s: %m", etc_machine_id); + if (errno == EROFS) + log_error("System cannot boot: Missing /etc/machine-id and /etc is mounted read-only.\n" + "Booting up is supported only when:\n" + "1) /etc/machine-id exists and is populated.\n" + "2) /etc/machine-id exists and is empty.\n" + "3) /etc/machine-id is missing and /etc is writable.\n"); + else + log_error("Cannot open %s: %m", etc_machine_id); return -errno; } -- 1.9.3 _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel