mandril

same here.. I also have MacMini with Mirrored RAID (2 internal HDs). I tried the 10.13.3 update and it failed. Now it keeps asking to update to 10.13.3. But About your Mac already shows 10.13.3 I am also going to try to carbon clone my hard drive to an external and do the update there but OP said that didn't work for him. Maybe the OS installation is messed up already from the failed update. Might need to do a clean install to fix? What do you guys think? I really would prefer not to.