WOW----the same result!!Endless reboot loop....do I have to rebuild my Leopard?Or there are some trick?
Here is my command log:
kael-computer:~ root# cd /efi
kael-computer:/efi root# diskutil list
/dev/disk0
#: type name size identifier
0: FDisk_partition_scheme *232.9 GB disk0
1: Apple_HFS Leopard 76.3 GB disk0s1
2: Apple_HFS Star Palace 38.2 GB disk0s5
3: Windows_NTFS Altar 38.2 GB disk0s6
4: Windows_NTFS Nirvana 38.2 GB disk0s7
5: Windows_NTFS Deep Freeze 42.1 GB disk0s8
/dev/disk1
#: type name size identifier
0: FDisk_partition_scheme *74.5 GB disk1
1: Apple_HFS Tiger 15.4 GB disk1s1
2: Windows_NTFS Qual'v'Las 10.0 GB disk1s2
3: Windows_NTFS City 10.0 GB disk1s3
4: Windows_NTFS Himmel und Erde 10.0 GB disk1s5
5: Windows_NTFS Programme 29.1 GB disk1s6
/dev/disk2
#: type name size identifier
0: FDisk_partition_scheme *149.1 GB disk2
1: Linux 18.0 GB disk2s2
2: Linux_Swap 2.0 GB disk2s3
3: Windows_NTFS Language 40.0 GB disk2s5
4: Windows_NTFS L'Art 40.0 GB disk2s6
5: Windows_NTFS Untitled 30.0 GB disk2s7
6: Windows_NTFS PLAY BOY 9.5 GB disk2s8
7: 9.5 GB disk2s9
kael-computer:/efi root# hdiutil unmount /dev/disk0s1
"disk0s1" unmounted successfully.
kael-computer:/efi root# ./startupfiletool /dev/disk0s1 ./boot_v8
Looking for 1 words free
reading 4096,4096
reading 8192,4096
reading 12288,4096
Marking word 94
writing back 12288,4096
allocated blocks 32 at start 68544

@Dani,
Maybe you have to reinstall your OS by erasing cos the EFI written into the MBR,only erase the Active Primary Partition can make the EFI disappear.

Good Luck!

Regards!

Kael