Jump to content
  • Announcements

    • Allan

      Forum Rules   04/13/2018

      Hello folks! As some things are being fixed, we'll keep you updated. Per hour the Forum Rules don't have a dedicated "Tab", so here is the place that we have our Rules back. New Users Lounge > [READ] - InsanelyMac Forum Rules - The InsanelyMac Staff Team. 
goli

help ! need "unbless" xom.efi

7 posts in this topic

Recommended Posts

Got big problem with installing XP on iMac Intel. It freezed and crached. Now I can't even get back to OSX, neither reinstall it once again. :lol:

How do I "unbless" this xom.efi and get back on my initial Apple EFI module ?

- I can get into EFI menu with rEFIt CD

- I can get into Disc Utility and Terminal with OSX Install CD

but can not reinstall OSX ( HFS+ formated HD is red arrowed !)

don't know the commande for re-initial Apple EFI ?

Thanks lot

Share this post


Link to post
Share on other sites

When in disk utility select the internal hard drive (not the partitions) and then select the erase option. That will kill all the old partitions and create a nice new mbr and partition that you can modify and install on as you please.

Share this post


Link to post
Share on other sites
When in disk utility select the internal hard drive (not the partitions) and then select the erase option. That will kill all the old partitions and create a nice new mbr and partition that you can modify and install on as you please.

Hi Pika

The thing is that I'm able to kill the old partitions and create the new one HFS, but OSX CD-Install don't want chosse it. The HFS partioned disc is "red arrowed". Strange !

Is it because I've got xom.efi in EFI module ??

Share this post


Link to post
Share on other sites

I had the same situation...

I guess you want to do a complete new install of osx. So when you're in the disk utility in the partition section, just click the 'options' button and there you should click default (which will select GUID Partition Table instead of Master Boot Record). Now click 'ok' and finally 'partition'.

 

you should be all set to install osx from scratch!

 

hope this helps....

Share this post


Link to post
Share on other sites

If your OS X installation is otherwise fine, just use the same command you used to bless xom.efi, but replace 'xom.efi' with 'boot.efi' (the default Apple bootloader). You can do this from the Terminal when booting from the installer DVD.

Share this post


Link to post
Share on other sites
If your OS X installation is otherwise fine, just use the same command you used to bless xom.efi, but replace 'xom.efi' with 'boot.efi' (the default Apple bootloader). You can do this from the Terminal when booting from the installer DVD.

 

Thanks lot.

My OS X is now fine. As I'm real noob on Mac world, I'll wait for BAMBIOS... :laser:

Share this post


Link to post
Share on other sites

Do be aware that this fix will only allow you to boot normally into OS X again...it won't correct the fact that your hard drive is now using the fdisk partition scheme (this is done by the XP installer), and thus you won't be able to reinstall OS X in the future unless you repartition the drive again.

 

Does anyone know a way to restore a modified drive back to the GUID partition scheme without actually repartitioning (and thus losing all of your data)?

 

Edit: Looks like someone was way ahead of me. :laser:

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Recently Browsing   0 members

    No registered users viewing this page.

×