Improve bad error reporting seen in shamu SELinux boot failures.
Explain why mount failed, and explicitly say that the umount fixed it.
Change-Id: I13b0927a36517f2fc9f9580945ba6ebefc4882df
diff --git a/fs_mgr/fs_mgr.c b/fs_mgr/fs_mgr.c
index 273a2ec..47ea9aa 100644
--- a/fs_mgr/fs_mgr.c
+++ b/fs_mgr/fs_mgr.c
@@ -117,8 +117,10 @@
* filesytsem due to an error, e2fsck is still run to do a full check
* fix the filesystem.
*/
+ errno = 0;
ret = mount(blk_device, target, fs_type, tmpmnt_flags, tmpmnt_opts);
- INFO("%s(): mount(%s,%s,%s)=%d\n", __func__, blk_device, target, fs_type, ret);
+ INFO("%s(): mount(%s,%s,%s)=%d: %s\n",
+ __func__, blk_device, target, fs_type, ret, strerror(errno));
if (!ret) {
int i;
for (i = 0; i < 5; i++) {
@@ -126,6 +128,7 @@
// Should we try rebooting if all attempts fail?
int result = umount(target);
if (result == 0) {
+ INFO("%s(): unmount(%s) succeeded\n", __func__, target);
break;
}
ERROR("%s(): umount(%s)=%d: %s\n", __func__, target, result, strerror(errno));