diff options
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/src/main.c b/src/main.c index d1be83d44f..fdac00f699 100644 --- a/src/main.c +++ b/src/main.c @@ -923,6 +923,8 @@ static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) { static void test_mtab(void) { char *p; + /* Check that /etc/mtab is a symlink */ + if (readlink_malloc("/etc/mtab", &p) >= 0) { bool b; @@ -933,9 +935,33 @@ static void test_mtab(void) { return; } - log_error("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " - "This is not supported anymore. " - "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); + log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " + "This is not supported anymore. " + "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); +} + +static void test_usr(void) { + struct stat a, b; + bool seperate = false; + + /* Check that /usr is not a seperate fs */ + + if (lstat("/", &a) >= 0 && lstat("/usr", &b) >= 0) + if (a.st_dev != b.st_dev) + seperate = true; + + /* This check won't work usually during boot, since /usr is + * probably not mounted yet, hence let's add a second + * check. We just check whether /usr is an empty directory. */ + + if (dir_is_empty("/usr") > 0) + seperate = true; + + if (!seperate) + return; + + log_warning("/usr appears to be on a different file system than /. This is not supported anymore. " + "Some things will probably break (sometimes even silently) in mysterious ways."); } int main(int argc, char *argv[]) { @@ -1108,6 +1134,7 @@ int main(int argc, char *argv[]) { mkdir_p("/dev/.systemd/ask-password/", 0755); test_mtab(); + test_usr(); } if ((r = manager_new(arg_running_as, &m)) < 0) { |