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main: print warning if /usr is on a seperate partition

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This commit is contained in:
Lennart Poettering 2011-02-23 01:10:20 +01:00
parent 3642d1c988
commit 80758717a6
1 changed files with 30 additions and 3 deletions
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33
src/main.c
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@ -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) {