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Another idea : Sometimes the problem is with the power supply. There are two cases : The secondary hard disk is connected to a power cable which is shared with another device. If the other device draws a varying amount of current, it might not let the disk start up fast enough to be counted as up and running by Windows. The allowed startup times vary ...


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Insufficient power on startup. Possible as ODD usually requires more power to work, but less or same while spinning up as HDD. But make sure - what is the nominal power consumption for the hdd in the caddy? Usual are 0.5 A/1.0 peak for hdd. Try disabling all devices - wifi for example. LAN, especially if configured wit network boot (PXE).. I would rule this ...


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UEFI is perfectly capable of booting BIOS-bootable operating systems, using the so called “Compatibility Support Module” (CSM), which emulates all the necessary stuff. And no, you cannot simply flash whatever you like. The firmware/BIOS is created specifically for your device. Unless the manufacturer provides a legacy BIOS firmware (he won’t), you’re stuck ...


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This is a known bug with Samsung's implementation of UEFI on certain notebooks. You can know more about this by googling "Samsung UEFI bug". It's been mentioned in several places like in this Ubuntu CD Image bug report and this Wikipedia article In his online journal, Matthew Garret explains the problem with Samsung's UEFI implementation: The problem ...


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Thanks to a friend, I discovered you can use gdisk from the GPT fdisk suite. For the benefit of others, use gdisk 0: (substitute the number of the affected drive). Type p to print the list of partitions. The EFI System Partition will have a type of EF00. Enter t to change the type, select the number of the partition, and then type the code for the standard ...


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After 1 year I came across the same problem again. Luckily this time I found a solution. In order to add an OsLoader in windows Boot-Manager which loads non-Windows UEFI images you need to manually edit BCD registry. In RegEdit there is a key named "HKEY_LOCAL_MACHINE\BCD00000000" - which is loaded from Windows EFI System-Partition and editing it's subkeys ...


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So, I know this is probably a bit too late, but I figured I would give the "real" answer to this question for the next poor schlub who came across this problem and had to try fixing it. The issue is simply that the T420's EFI boot manager has no idea what grub is doing and is looking for /boot/bootx64.efi, which is the default boot file. More information is ...


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You can put Windows 8.1 x86-x64 AIO on a USB stick and it will boot. You have the option of selecting between the 32 bit and the 64 bit Windows installation. If you select the 64 bit option it will try to install it, given that your device has a 64 bit processor, but since it has a 32 bit UEFI firmware, winload.efi will crack because it expects a 64 bit ...


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Boot sequence for UEFI is: firmware boot manager first boot candidate from NVRAM boot entries In NVRAM there is a variable "bootOrder" which holds an ordered list of NVRAM boot variables (analogue is Windows "displayorder"). Using firmware setup you can change order of boot variables in "bootOrder". Every OS installation (Windows, Linux, BSD etc.) ...


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I did a Google search and found a few similar problems mentioned here and here, the latter being the most similar to the issue faced by the OP. One solution proposed on Tom's Hardware by Luke Cool is to perform a minimum systems check by disconnecting everything (including RAM and HDD) other than the bare essentials needed to boot the computer to see if the ...


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Hmmm, only gone after starting up... I had a drive that would take a little too long to "start up" sometimes, and the computer would start without it, like the drive wasn't connected. Would have to go into BIOS & then soft reboot and then it would see the drive as usual. Maybe a longer delay when starting might help? Or when doing a "soft reboot" is the ...



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