Dual Boot Ubuntu/Yosemite

• 200Go for Yosemite (HFS+ journalised)
• 80Go for Ubuntu 14.04 (ext4)
• 720GO for Documents (HFS+ journalised)
  
  I'll try to unjournalise "Documents" to have a compatible disk for Yosemite & Ubuntu.
  
  But for the moment, Chimera can't see my Ubuntu partition. I've tried to set with Ubuntu in Terminal : "sudo grub-install /dev/sda2" and it seems to work, but Chimera still can't see my Ubuntu partition.
  
  When I ask Terminal for "sudo fdisk -l", it says :
  

  Attention : identifiant de table de partitions GPT (GUID) détecté sur « /dev/sda » ! L'utilitaire fdisk ne prend pas GPT en charge. Utilisez GNU Parted.
  
  Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
  255 têtes, 63 secteurs/piste, 121601 cylindres, total 1953525168 secteurs
  Unités = secteurs de 1 * 512 = 512 octets
  Taille de secteur (logique / physique) : 512 octets / 4096 octets
  taille d'E/S (minimale / optimale) : 4096 octets / 4096 octets
  Identifiant de disque : 0x00000000
  
  Périphérique Amorçage Début Fin Blocs Id. Système
  /dev/sda1 1 1953525167 976762583+ ee GPT
  La partition 1 ne commence pas sur une frontière de cylindre physique.
  /dev/sda2 * 0 0 0 0 Vide

  Click to expand...

  
  Sorry : my hackintosh speaks french ;-)
  
  I think the problem is I formatted the HDD with GUID table.
  Could I remedy to my problem without reformatting and reinstalling everything (it takes a little time to do !) ?
  Else, could Yosemite boot correctly from a MBR table ?
  
  Thanks for your help

Anard said:

Hi,

I'm trying to build my first Hackintosh (see config on the left). For the moment, Yosemite doesn't work fine (very slow) but I suspect it's because of my screen is VGA, so incompatible. I'll try a new screen when I'llo find it...

I've partitionned my 1TO HDD like this :

• 200Go for Yosemite (HFS+ journalised)
• 80Go for Ubuntu 14.04 (ext4)
• 720GO for Documents (HFS+ journalised)
  
  I'll try to unjournalise "Documents" to have a compatible disk for Yosemite & Ubuntu.
  
  But for the moment, Chimera can't see my Ubuntu partition. I've tried to set with Ubuntu in Terminal : "sudo grub-install /dev/sda2" and it seems to work, but Chimera still can't see my Ubuntu partition.
  
  When I ask Terminal for "sudo fdisk -l", it says :
  
  
  Sorry : my hackintosh speaks french ;-)
  
  I think the problem is I formatted the HDD with GUID table.
  Could I remedy to my problem without reformatting and reinstalling everything (it takes a little time to do !) ?
  Else, could Yosemite boot correctly from a MBR table ?
  
  Thanks for your help

Click to expand...

• 
  To boot Ubuntu with Chimera you need to sync the drive with gptsync

Anard said:

Thanks... but how to ? I'm really novice Gptsync is an ubuntu application or is it accessibe by terminal ?
I'm searching for informations on forums but I don't understand everything. So I think I forvige some important steps...

For the moment, trying to enable in reading/writing my Documents partition for Ubuntu, I couln't boot anymore with Yosemite and Ubuntu just enabled "invited" sessions !
So, i'm reinstalling everything, allowing a new 8Go partition for Ubuntu swap.

Click to expand...

IMPORTANT! You will want to pay special attention to the ‘Device for boot loader installation’. Change it to the same ext4 partition we used in steps 8, 9 & 10. This will cause grub2 to be installed on the Ubuntu partition and won’t interfere with the Chimera boot loader already installed. Again, in my case, it is /dev/sda7.

Click to expand...