On my Mac OSX Mojave machine.. I installed Ubuntu 18.04 to attempt to dual boot on the internal Apple SSD. Worked for a while, but after some updates to Ubuntu... hitting the power button boots up to a GRUB terminal, and when hitting the option key there is no 'Macintosh HD' as a startup option.
I have seen 2 similar posts on this topic, but none of them appear to exactly match as far as partitions go here and here and I am hesitant to try something that would wipe out or corrupt my OSX data that I know is still on the SSD/drive.
When booting into recovery media, I executed the following command to list disks:
I notice the partition FFFFF-FFFF...
I then use GPT to check...
gpt -r show /dev/disk0
What can I do to make it so that I can fix my OSX boot partition without losing any files. The disk that my OSX files are stored are on disk0s2, which is the FFFFFFF partition... how do I fix up my ability to boot into the OSX Mojave without wiping out my data or is there a way? Does APFS have anything to do with this?
At this point I don't care about the Ubuntu 18.04 partition, but I do not want to lose any data on the 900+GB partition, which is all my the Mac files are.