Prohibitory sign in regular boot mode:
When booting into a more verbose boot you will see it stop at "still waiting for root device". The error keeps repeating:
Thunderbolt Firmware Update not working correctly with the Symantec Drive Encryption Driver (pgpwde.kext)
The following is a known temporary workaround for the issue until the version/maintenance pack is released:
Scenario 1 The drive is encrypted and won't boot
Scenario 1 - Option A: Using the Recovery CD with an External USB drive
Note: To recover from this method you need access to a USB CD/DVD-ROM drive
Warning: Using the Recovery CD method can take several days to recover, depending on the size of the drive.
Scenario 1 - Option B: Using Target Disk Mode via FireWire with a Thunderbolt to FireWire adapter
Note: Using this recovery method requires physical access to another Mac OS X system that you can use to control the affected MacBook Air which has a FireWire port and also access to a Thunderbolt to FireWire adapter.
Scenario 2 The drive is not encrypted and will not boot
Since the drive is not encrypted in this scenario, it is possible to boot into the recovery partition or use the Mac OS X installation disc and then open up a terminal utility and move the PGPwde.kext from /System/Library/Extensions to another location. You can then reboot the system. Symantec Drive Encryption (or PGP Whole Disk Encryption) is still installed at this point, but you will not be able to encrypt your disk.
This issue appears to be confined to the 2012 5,2 Model 13" MacBook Air model only.
Following is a table containing the results of testing at this time:
|Model Identifier||Products Tested||State|
|MacBook Air (13-inch, Mid 2012)||MacBookAir5,2||Drive Encryption 10.3.0 MP1, 10.3.0; PGP WDE 10.2.1 MP5||Varied success (1 failure)|
|MacBook Air (13-inch, Mid 2011)||MacBookAir4,2||Drive Encryption 10.3.0 MP1||Working|
|MacBook Pro (Retina,15-inch, Mid 2012)||MacBookPro10,1||Drive Encryption 10.3.0 MP1, 10.3.0; PGP WDE 10.2.1 MP5||Working|
|MacBook Pro (15-Inch,Mid 2011)||MacBookPro8,2||Drive Encryption 10.3.0 MP1||Working|
|MacBook Air (11-inch, Mid 2011)||MacBookAir 4,1||Drive Encryption 10.3.0 MP1||Working|
|MacMini (Core i5, 2011)||MacMini5,1||Drive Encryption 10.3.0 MP1, 10.3.0||Working|
|iMac iMac (21.5-inch, Mid 2011)||iMac12,1||Drive Encryption 10.3.0 MP1, 10.3.0||Working|