Answer by Ross Lagerwall for Caution: invalid backup GPT Header (gdisk)
I had the same problem. Eventually I tracked it down to the firmware overwriting the CRC entries in the backup GPT header every boot to some invalid value. Change the disk mode in the firmware setup...
View ArticleCaution: invalid backup GPT Header (gdisk)
Each time I boot into my Ubuntu installation, when I open gdisk I am given the messages: GPT fdisk (gdisk) version 0.8.8 Type device filename, or press <Enter> to exit: /dev/sda Caution: invalid...
View Article
More Pages to Explore .....
