children_of_the_dragon Posted May 1, 2009 Share Posted May 1, 2009 Thanks for clearing that up Pere. I'm running into a weird problem though, here's my setup: 1. Formatted hard drive using GUID Partition Table (GPT) scheme. a. EFI partition. b. hfs+ partition (mac os x leopard 10.5.6 - iATKOS) c. fat32 partition (shared partition for all OSes to access) d. ntfs partition (windows 7 RC, build 7100) e. ext4 partition (ubuntu 9.04) The weird problem I'm having right now is this: I used the default PC EFI v9/Chamelon method, which lists three partitions upon boot up: >leopard (this is leopard partition) >windows ntfs (this is windows 7 partition) >windows fat32 (this is linux partition) Now I don't exactly remember the order in which I installed the OSes (the only issue one runs into is the windows 7 bootloader anyways, which you must repair if you had installed ubuntu AFTER installing windows 7). But right now, I can boot leopard and windows 7 just fine, but when I try to boot the linux OS, grub just comes up like this: grub> and is waiting for input. I've tired to re-install grub from the linux live cd, no avail. But the real weird thing is this: I've tired the SAME above setup (EXCEPT without the shared partition, but everything else the same) on another laptop, grub boots fine and I can load ubuntu! But with the setup as indicated above, I've tired to install ubuntu 8.10, 9.04, both have the same issues (grub can't boot). I'm beginning to think it's because maybe ubuntu is unable to recognize the linux partition because it's gpt formatted? I have never had these types of issues while using a MBR formatted harddrive. Any insight you guys can give me would be great! Thansk Link to comment https://www.insanelymac.com/forum/topic/164527-grub-bootloader-cant-seem-to-run-because-the-disk-is-gpt-formatted/ Share on other sites More sharing options...
Dr. Hurt Posted May 1, 2009 Share Posted May 1, 2009 I had a similar setup before. All you need to do is install Grub to the ubuntu partition boot sector NOT MBR. Chameleon should detect ubuntu ext4 partition as "Linux" and boot it. Link to comment https://www.insanelymac.com/forum/topic/164527-grub-bootloader-cant-seem-to-run-because-the-disk-is-gpt-formatted/#findComment-1145902 Share on other sites More sharing options...
children_of_the_dragon Posted May 1, 2009 Author Share Posted May 1, 2009 I had a similar setup before. All you need to do is install Grub to the ubuntu partition boot sector NOT MBR. Chameleon should detect ubuntu ext4 partition as "Linux" and boot it. Hi Dr. Hurt: Yeah sorry I forget to say, I DID install GRUB just to the Ubuntu partition only. Like I said this method works fine for my other laptop (which doesn't have the shared partition). Unfortunately, it's not working right now for this new laptop. Link to comment https://www.insanelymac.com/forum/topic/164527-grub-bootloader-cant-seem-to-run-because-the-disk-is-gpt-formatted/#findComment-1145909 Share on other sites More sharing options...
Ed_Saxman Posted May 8, 2009 Share Posted May 8, 2009 Its becouse only the first 4 partitions can be primary, so you better put your shared partition as 5th. Link to comment https://www.insanelymac.com/forum/topic/164527-grub-bootloader-cant-seem-to-run-because-the-disk-is-gpt-formatted/#findComment-1151023 Share on other sites More sharing options...
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