HELP with ASUS X551C

[RehabMan]

I can try everything u write me
but, do you think i can fix my last error about intelhd4000 , booting from hdd?

and what about vt-d disable? What is it? A bios option? Where i can find it?

I would suggest you first succeed booting from the HDD. If your BIOS has an option for VT-d (Virtualization Technolology for Directed I/O) disable it. Otherwise use dart=0.

 

[giampy72]

I checked with fdisk and i have a small partitio EFI and the lion partition active
but if i go to see the bios boot priority i cant select hdd ( when i install win7 i can select the hdd for boot )

i tryed all u wrote but no fix

maybe i can try with maverich usb unibeast

 

[RehabMan]

I checked with fdisk and i have a small partitio EFI and the lion partition active
but if i go to see the bios boot priority i cant select hdd ( when i install win7 i can select the hdd for boot )

i tryed all u wrote but no fix

maybe i can try with maverich usb unibeast

I don't think I mentioned anything about "BIOS boot priority." I was talking about accessing your BIOS boot menu (it is usually a different hotkey compared to BIOS configuration).

 

[giampy72]

Its esc key but i dont see my hdd
i tried with linus to make it active and boot flag too but nothing works
with linux i see two partition
1 efi boot flag fat32
1 lion no flag

 

[RehabMan]

Its esc key but i dont see my hdd
i tried with linus to make it active and boot flag too but nothing works
with linux i see two partition
1 efi boot flag fat32
1 lion no flag

What do you see in the BIOS boot menu? Post a pic.

It could be your BIOS does not support booting legacy to a GPT drive. Some BIOSes are like that...

 

[giampy72]

When i had win7 i can select hdd in bios menu

 

[RehabMan]

When i had win7 i can select hdd in bios menu

Thats BIOS settings, not the BIOS boot menu.

 

[giampy72]

In the bios boot menu (esc key) i see :
usb stick
dvd
ethernet

 

[RehabMan]

In the bios boot menu (esc key) i see :
usb stick
dvd
ethernet

It is likely, then, that your BIOS doesn't like booting legacy to a GPT drive. Or you don't have the bootloader installed correctly.

See this post for some ideas: http://www.tonymacx86.com/mountain-lion-laptop-support/117521-help-asus-x551c-2.html#post716084

(I should probably make that post a sticky)

Ha ha... funny... just noticed I posted that in this very thread. Have you tried all the things on that list?

 

[giampy72]

That means the BIOS does not recognize your bootloader being installed.

Things to check/try:
- do you have an active partition? (see: http://www.insanelymac.com/forum/to...-your-partition-active-using-fdisk-in-macosx/)

sudo fdisk /dev/rdisk0

Active partition marked with '*'...

- verify your boot records

# assuming one disk, one partition
sudo dd if=/dev/rdisk0 of=/tmp/mbr bs=512 count=1
xxd</tmp/mbr|tail
sudo dd if=/dev/rdisk0s1 of=/tmp/pbr1 bs=512 count=1
xxd</tmp/pbr1|tail
sudo dd if=/dev/rdisk0s1 of=/tmp/pbr2 bs=512 count=2
xxd</tmp/pbr2|tail

All boot record output should end in 55aa.

- try to force your BIOS to boot to the HDD (use BIOS hotkey to select boot device)
- try creating a single small FAT32 partition in Disk Utility (this will give you a hybrid MBR/GPT)
- try setting the active partition to that FAT32 partition created above (two steps separately)
- try pure MBR partitioning (convert from GPT to MBR using gdisk [Linux])

what i tried :
- force bios with hotkey esc
- create a small fat2 partition in Disk Utility
- set to active the fat32

i didnt try
- gdisk... live ubuntu give me back command dont exist, and tryng with gparted i cant see the menu function to convert the partition

and

about the line command in the terminal, i tryed but not at all because i dont know if i have to write everything , line by line