Hi.
I found this thread through Google. I have a similar problem, but no data corruption (yet). Can someone confirm that the problem described below is the same one as discussed in this thread?
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I installed Windows 7, Ubuntu 12.10 and Arch Linux (in that order) on a WD 1TB HDD using UEFI (Gigabyte Z77 motherboard) and GPT for the HDD. Everything worked fine.
Now ... when I use the Samsung SSD 840 PRO Serie (lastest firmware DXM04B0Q is on) and start installing Windows 7, the installer shows already that Windows 7 can't be installed on that disk because no MBR ... (can't remember the exact phrasing). But then, when I continue the installation, all works fine. EFI partition (100 MB), msftres partition (128 MB) and the Windows 7 partition is installed. Later on I proceed with Ubuntu and Arch Linux ... all works just fine!
GParted shows that the device uses GPT ... so all good!
But ... when I reboot the system, the UEFI Boot Manager doesn't show the SSD to be able to start using UEFI. It only shows the BIOS type entry.
The actually shown UEFI Boot Manager BIOS start entry is: "P0: Samsung SSD 840 PRO Series"
The UEFI Boot Manager UEFI start entry should be: "UEFI: Samsung SSD 840 PRO Series"
The second one, I don't see.
For the previously, for testing purpose used HDD, I saw:
The shown UEFI Boot Manager BIOS start entry is: "P2: WDC WD1000FYPS-01ZKB"
The shown UEFI Boot Manager UEFI start entry is: "UEFI: WDC WD1000FYPS-01ZKB"
That's the way it should be and also what I expected for the SSD to see.
Honestly, I have no clue where to start to look for the error.
Is it the motherboard UEFI firmware which doesn't support Samsung SSD UEFI start?
Is it the Samsung firmware?
Is it something I forgot / didn't know to do prior installing the OSs?
Any ideas?
Many thanks!