How recover boot drive? Mount the macOS drive

Asked Jul 12 '22 at 16:19

Active Jul 12 '22 at 20:22

Viewed 31 times

I have problem. MacBook Pro 15 2010 A1286 with two OSes on-board: Win7 on BootCamp and macOS.

The second drive (which is installed instead of the DVD) is turned off when macOS worked. The plume fell off.

macOS told me that drive was turned off incorrectly. After a reboot macOS didn't start.

The boot record was unmounted...

I used CMD+R (recovery mode) to boot. I tried to use Disk Utility, and diskutil, to mount the drive, but without success.

edited Jul 12 '22 at 20:22

Greenonline

asked Jul 12 '22 at 16:19

Dmitriy Lavrov

The plume fell off... do you mean the plug fell out? What is the "plume"? – Greenonline Jul 12 '22 at 18:42
@Greenonline I mean sata cable fell out yes. HDD hot disconected. Now i cant mount MAC os boot record. – Dmitriy Lavrov Jul 14 '22 at 18:31
Post the output from the following commands. gpt -r show /dev/disk0, fdisk /dev/disk0 and export LC_CTYPE="ASCII"; diskutil umountDisk disk0; dd if=/dev/disk0s2 count=3 | vis -cfw – David Anderson Jul 14 '22 at 19:17

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