reinstalling efi

[colinhb88]

Is there a way to redo the EFI partition. It doesn't mount with the EFI mounter and when i try to do the this process again http://tonymacx86.blogspot.com/2010/01/ ... eleon.html the mount_hfs part it says not a directory.

 

[tonymacx86]

I'd start at the beginning of the EFI guide and reformat the EFI partition. Then you can set it active. Good luck!

 

[colinhb88]

I did start at the beginning thats why i said at the mount_hfs part it doesnt work. how do i format efi partition

 

[tonymacx86]

STEP 2: REFORMAT AND MOUNT YOUR EFI PARTITION

1. Open Applications/Utilities/Terminal
2. Type: sudo -s
3. Type: newfs_hfs -v EFI /dev/disk0s1
4. Type: mkdir /Volumes/EFI
5. Type: mount_hfs /dev/disk0s1 /Volumes/EFI

You did this and the mount_hfs error came up?

 

[colinhb88]

yes, but let me go to disk utility and try to format efi partition

 

[colinhb88]

how do i format?

 

[colinhb88]

Ok nevermind I fixed it. I got it to boot from HD without the disc again, but now it's just getting it to boot with the other windows 7 hard drive plugged in.

 

[colinhb88]

Hey so I still need help booting with both hard drives plugged in. I set the snow hd to boot first and when it boots with windows 7 hard drive it just freezes at mount, but when It is the hard drive by itself it boots fine.

 

[tonymacx86]

My guess is that when Windows was set up, your other drive wasn't in- the Windows MBR may not want to play nice with the other Primary drive. I've heard of Windows stuff like this happening with dual boot OS X rigs. Just thought that now that Windows 7 was out, it would be over... oh well.

I suggest reinstalling Windows with the other drive plugged at DVD boot.