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marinahov95
December 7th, 2013, 04:45 PM
I originally had a Windows 8 operating system from which I tried to switch to Linux via USB installation. My computer's hard-drive became completely wiped out and the only thing that it would boot from was the Ubuntu USB I had previously created. When I turn on my computer, it gives me the options of Installing Ubuntu or Trying Ubuntu. I Installed Ubuntu and restarted my computer. My computer works well until I shut it down or take out the USB. Then, my hard-drive is once again wiped out and the only thing I can do is plug in the USB and use it with the USB inside the computer, having to Try or Install ubuntu all over. I've attempted this several times, with different flash drives but nothing changes.

I'm using the Ubuntu 12.04 LTS 64 bit desktop

My computer Model is Samsung ativ book 9 Lite model NP915S3G

I've attempted to go through the steps the ubuntu help by the Boot Repair (https://help.ubuntu.com/community/Boot-Repair) then rebooted my computer. My computer still didn't boot to the OS but now, every time I follow those same steps and reboot my computer it brings me back to this same account.
The URL I receive from Boot-Repair is http://paste.ubuntu.com/6535423. It tells me to make BIOS boot on sda1/EFI/ubuntu/shimx64.efi but i don't really know how to do that.

Secure boot is disabled
The OS selection is on CSM and UEFI OS
AHCI mode control is manual
AHCI mode is disabled
Fast BIOS mode is off
PXE OPROM is off
My system has a Solid State Drive (SSD)

My BIOS Version is P03RBV but i can't seem to find the UEFI version
The only options i have for boot option priorities are UEFI:USB Flash MemoryPMAp and "disabled"

fantab
December 7th, 2013, 05:14 PM
What do you mean when you say, "Then, my hard-drive is once again wiped out"? I wonder how is that possible.
Do you have both HDD and SSD? or just SSD?

parted -l:

Model: ATA SAMSUNG MZMTD128 (scsi)
Disk /dev/sda: 128GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 1049kB 99.6MB 98.6MB fat32 boot
2 99.6MB 124GB 124GB ext4
3 124GB 128GB 3698MB linux-swap(v1)

As you can see in 'red' above, you have GPT partition table. Ubuntu can boot from GPT in 'Legacy/CSM' mode but you will need a 5Mb /boot partition.
You already have the FAT32 EFI partition, so it will be better if you enable UEFI boot in UEFI and disable 'Legacy/CSM'.
Also you will have to install Ubuntu in EFI mode only: See HERE (https://help.ubuntu.com/community/UEFI#Identifying_if_the_computer_boots_the_Ubuntu_ DVD_in_EFI_mode) to know the difference...

If AHCI is disabled then what mode is it set to? AHCI is what it should be. Set the mode to AHCI.

For now, change the boot mode to 'UEFI' or 'EFI' and Enable AHCI. Boot Ubuntu and tell us what happens...

oldfred
December 7th, 2013, 05:32 PM
When Boot-Repair dumps the UEFI memory it shows several boot orders, I do not know what all are. I guess one may be secure boot, UEFI , and CSM?
But you do show ubuntu as boot option.


BootOrder: 0001,0017,0018,0000
Boot0000* Windows Boot Manager Vendor(99e275e7-75a0-4b37-a2e6-c5385e6c00cb,)WINDOWS.........x...B.C.D.O.B.J.E.C. T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...0................
Boot0001* ubuntu HD(1,800,2f000,85f5b0a1-aa08-40d8-b339-954702b70031)File(EFIubuntushimx64.efi)
Boot0017* UEFI: USB Flash MemoryPMAP ACPI(a0341d0,0)PCI(10,0)USB(3,0)HD(1,2,e88d7e,000f 402e)..BO
Boot0018* USB Flash MemoryPMAP BIOS(5,0,00)..BO

UEFI remembers settings, so even though Windows is erased from efi partition it still is in UEFI memory.