5 Replies Latest reply: Apr 9, 2012 10:05 AM by putnik
tombaugh Level 1 Level 1 (0 points)

I'm trying to restore the partitioning of my late 2011 Air drive, after messing it up while trying to dual boot OS X and Linux. The goal is to get rid of the superfluous partitions and resize the OS X one so I can use the whole drive again. Data loss is not an issue.

 

According to Disk Utility the partitioning looks like this:

 

EFI

Macintosh HD

Recovery HD

06

07

08

09

 

When I try to erase any of the last four partitions get "File system resize support required" or "Couldn't modify partition table".  Trying to verify the drive gives me "This disk doesn't contain an EFI system partition". The "Erase free space" button is grayed out.

 

Gdisk output:

 

Found valid GPT with hybrid MBR; using GPT.

Disk /dev/disk0: 236978176 sectors, 113.0 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): 00002DCF-4F07-0000-DB14-00001A000000

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 236978142

Partitions will be aligned on 2-sector boundaries

Total free space is 525817 sectors (256.7 MiB)

 

Number  Start (sector)    End (sector)  Size       Code  Name

   1              40          409639   200.0 MiB   0700  EFI system partition

   2          409640       138052343   65.6 GiB    AF00  Customer

   3       138052344       139321879   619.9 MiB   AF00  Recovery HD

   4       139321880       139731479   200.0 MiB   EF00  EFI System Partition

   5       139732992       148881847   4.4 GiB     0700  LINUX

   6       149143992       149145945   977.0 KiB   0700 

   7       149145946       228772899   38.0 GiB    0700 

   8       228772904       236715991   3.8 GiB     0700

 

Many thanks in advance


MacBook Air, Mac OS X (10.7.3)