And here is some, perhaps, useful info:
*** Report for internal hard disk ***
Current GPT partition table:
# Start LBA End LBA Type
1 40 409639 EFI System (FAT)
2 409640 254315895 Mac OS X HFS+
3 254578688 508483583 Basic Data
4 508483584 509007871 Basic Data
5 509007872 976773119 Linux LVM
Current MBR partition table:
# A Start LBA End LBA Type
1 1 409639 ee EFI Protective
2 409640 254315895 af Mac OS X HFS+
3 254578688 508483583 07 NTFS/HPFS
4 * 508483584 509007871 83 Linux
MBR contents:
Boot Code: Unknown, but bootable
Partition at LBA 40:
Boot Code: None (Non-system disk message)
File System: FAT32
Listed in GPT as partition 1, type EFI System (FAT)
Partition at LBA 409640:
Boot Code: None
File System: HFS Extended (HFS+)
Listed in GPT as partition 2, type Mac OS X HFS+
Listed in MBR as partition 2, type af Mac OS X HFS+
Partition at LBA 254578688:
Boot Code: Windows BOOTMGR (Vista)
File System: NTFS
Listed in GPT as partition 3, type Basic Data
Listed in MBR as partition 3, type 07 NTFS/HPFS
Partition at LBA 508483584:
Boot Code: GRUB
File System: ext4
Listed in GPT as partition 4, type Basic Data
Listed in MBR as partition 4, type 83 Linux, active
Partition at LBA 509007872:
Boot Code: None
File System: Unknown
Listed in GPT as partition 5, type Linux LVM