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4hv.org :: Forums :: Computer Science
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Samsung UEFI problem

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Conundrum
Sun Feb 10 2013, 09:42AM Print
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Link2

Uh oh.
This is a big problem, apparently the fix is to reinstall Windows with UEFI disabled.
So if you have one of the machines where the restore image is on the HDD, you are well and truly stuffed.

Any ideas?

I have one of the machines with this "feature" frown
Lucky for me my hoarding fetish finally paid off, this is being typed on an HP DV6000 with no UEFI or other annoying features.
Also Windows Vista although slow and annoying can restore from a simple HDD image with Winhex, bootable DVD, bootable pendrive AND type-the-boot-imager-into-the-keyboard-like-a- ninja mode. smile

An interesting note, some Acer AOAxx0's (110,150 etc) had a similar problem where due to a rather stupid BIOS bug the machine would randomly exhibit the BlSOD on boot.
I fixed a few of these by reflashing over USB but one or two never worked again.
In retrospect it could have been a similar problem where something wrote to the NVRAM and affected the boot area.

My sister has a more recent AOA w7Basic machine where it has BSODd fatally on eight separate occasions, been back to Acer once and just did the same again.
Each time it refused to recover even in Safe Mode, had to do a full factory restore.
May be related to the Samsung bug as this has UEFI as well..



-A
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Carbon_Rod
Sun Feb 10 2013, 09:39PM
Carbon_Rod Registered Member #65 Joined: Thu Feb 09 2006, 06:43AM
Location:
Posts: 1155
In general, removing the UEFI boot partition is standard practice for installing Linux or BSD on a new laptop. As much as naive people trust Microsoft's new signed super-root-kit technology, it is not practical for some people.

1. Backup your stuff to external drives, and build a non-UEFI recovery disk for windows.
2. disable UEFI in bios, and boot from live linux CD
3. use "gdisk" expert mode to convert GPT tables into an MBR
4. use "testdisk" to rebuild a new MBR (no UEFI part), and set boot-able flag for Win OS partition.
5. use "gparted" to move windows to the beginning of the disk
(do NOT re-size or alter the partition in any way)
6. reboot, and use windows recovery disk to fix boot loader
(Note, on ASUS it appears to boot just fine so skip this step)
7. Boot into windows and use Drive manager to re-size your OS Partition
8. Boot from a Debian Live CD (Ubuntu Alternate CD), install, and learn about kvm...

Documented process:
Link2


Gates should "talk" with Ballmer about corporate karma... wink
Rod
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