dellR720 reboot cannot find boot entry, manual selection is useless.

When the machine restarts, the no boot device available. (e.g.) checking the BIOS settings is no problem, because nothing has been moved since the system was loaded. F11 manually selecting a startup item will also jump here.

This machine does RAID 1, a hot spare, the front end, the hard drive also shows normal. Later colleagues in the raid settings found a disk display missing. A piece of normal,. Restart the time to find that the above error before displaying the system is prompted, at first did not pay careful attention. Didn't take the picture. Probably means to press the F key to import raid information, and so on. Press the F key to enter the system successfully.

Because this machine was replaced by a block of hard disk, it may be for this reason, caused the fault, it is very strange.

It should be said that raid information should be automatically written after replacing the hard drive.

This is not. It's weird.

Record it carefully and carefully. ^_^

dellR720 reboot cannot find boot entry, manual selection is useless.