Comment 68 for bug 872220

The current design is:
* if a disk is really not present and the array is truly degraded, we should not boot unless boot_degraded is true

* if disks are actually present and healthy, yet the array is detected as degraded => please file a new bug about your case, it should be fixed.

The reason is that there is disagreement whether it is safe to boot in degraded mode automatically, because currently we have no default ways of notifying the administrator that raid is degraded.

There is dataloss potential: boot once degraded of sda, another time of sdb. Boot with both => syncing can lead to data loss.