My previous MacBook Professional, A1286, (15in, mid-2012) has an SSD that divided my important boot disk into two partitions, one for Mac OSX (operating 10.13, Excessive Sierra) and one for Boot camp (operating Home windows 10).
The boot partition was at all times MacOSX. Sadly, after I eliminated it to attempt to use it as an exterior drive, it bought broken ultimately after I reinstalled it. It will not longer boot accurately was figuring out as kind "FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF" after I went into restoration mode and ran diskutil record from the terminal.
The bootcamp partition was nonetheless bootable although.
In my makes an attempt to restore my boot partition I got here throughout this query that appeared to be similar to what was occurring to me.
I attempted to comply with the steps laid out by @klanomath. Two issues arose these:
- I nonetheless bought an error after I tried to confirm the disk with
diskutil verifyDisk disk0(Particularly: Error: -69808: Some data was unavailable throughout an inner lookup Underlying error: 1: POSIX reviews: Operation not permitted) - In attempting to rebuild the partitions I eliminated all of them from disk0, after which tried so as to add them again. It appeared to go okay, however now the bootcamp partition is just not acknowledged.
Does anybody know who to revive a bootcamp partition utilizing gpt or one other methodology with out dropping the info within the partition?
Thanks
EDIT:
Here’s a picture of the output of diskutil record
EDIT 2:
Progress – After @David Anderson identified an error (thanks for catching that) within the worth I entered for the kind, my partition for boot camp is acknowledged as "Home windows Fundamental Knowledge" kind.
And in Startup Disk, it exhibits as an choice
However sadly, after I attempt utilizing Startup Disk to make use of it because the boot disk it will not boot nonetheless. And says;
"No bootable machine — insert boot disk and press any key"
Once I activate the pc and maintain down the choice key it does not present up as an choice both.
Right here is the output from gpt -r present /dev/disk0
And right here is the output from export LC_CTYPE="ASCII";dd if=/dev/disk0s2 bs=512 depend=1 | vis -cw;echo
UPDATE:
After updating the kind of the partition to 7C3457EF-0000-11AA-AA11-00306543ECAC it exhibits as an choice to boot into if I restart the pc. However it doesn’t present in Startup Disk. And when I attempt to boot to disk0s2 it should dangle on the apple emblem with a full progress bar.
I consider I’ve an concept of what could also be complicating my scenario. First somewhat additional rationalization of how my drives have been organized within the pc initially.
Initially I had an HDD within the pc operating OSX (10.8 I consider), then after awhile I added a second drive, an SSD (disk0) and partitioned it to have a OSX partition (disk0s2) and a bootcamp partition (disk0s3). The SSD OSX grew to become my major boot partition and the previous HDD I used for storage, however I by no means eliminated OSX fully off of it (now listed as disk1 in diskutil)
A little bit in the past I wanted to have the ability to use the Bootcamp partition however didn’t have the facility adapter for the mbp, so I attempted to take away the SSD and use it as an exterior on a distinct pc, that didn’t work, and after I positioned it again into the unique mbp is when disk0 s2 wasn’t being acknowledged and I began to attempt to repair it. That is after I tousled my bootcamp partition after which I posted on right here.
I consider the OSX Restoration that I’ve been utilizing is from the unique HDD which solely had 10.8 on it. And after doing a little analysis it appears that evidently possibly 10.8 cannot establish the newer OSX partition (disk0s2) and that’s the reason in Startup Disk I do not see it, but when I reboot the pc it does present up as an choice.
Listed below are the outputs that you simply requested for.
sw_vers ls -l /Volumes/BOOTCAMP/Boot/BCD diskutil record 
