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okay...here is what has happened... you have created a non-efi capable linux installation medium (your linuxu usb disk) and a windows installation medium so that's why it doesn't work on EFI mode ON (apparently your linux usb-disk is corrupted, you need to recreate it. please keep reading) so you have two choices leave EFI mode OFF and install both OSes ...


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It does not answer your question but may solve your problem. You can develop C# under Ubuntu using mono http://www.mono-project.com/ (it's cross platform)


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Common reasons for this: you hard disk is not detected and the boot order in BIOS skips it and then ends up picking network boot (PXE is related to network). This can happen if the cable in your system that is attached to the hard disk is faulty or is not connected firmly. If you open BIOS and the hard disk is detected this is NOT the cause. Your boot ...


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I got it. I guess my laptop has some kind of hybrid BIOS+UEFI/EFI sistem because it only accepts UEFI/EFI Ubuntu's installation. The cause of the problem was this Shim + SecureBoot bug. So I did this: 1) Disable FastBoot and Hibernation on Windows 8.1 2) Disabe QuickBoot on BIOS Then I still get the "booting in insecure mode" message, but only for 2 ...


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It is available in Ubuntu14.10 release notes that SecureBoot is disabled for UEFI system, You can refer the below release note An update to shim in 14.10 introduces a bug where, when booting on a UEFI system with SecureBoot disabled, the boot is delayed for two seconds and a message "Booting in insecure mode" is displayed on the screen. This message does ...


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It is possible after all - adding .efi boot loaders into Windows Boot Manager but at least on my motherboard is a very bad idea because the change is permanent - eg. after booting to Ubuntu from Windows Boot Manager you will always boot to Ubuntu because it directly edits the UEFI boot config. Also achieving this can be done only by manually editing the BCD ...


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This is Computer Science 101 material. You never can have full 4 GB of RAM available, because the system will cache some memory for peripherals , such as keyboard, monitor, touchpad, etc., and there has to be some cached for kernel. It doesn't matter which OS, it's more of the way computers are built. For instance I have 6 GB (one 2GB stick and 4 GB ), but ...


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Thanks for your input. I will get the data via our IT support and then the laptop can be re-installed. I was hoping to save me several trips to the office to get this done, but this is how it will be. My conclusion is that it is not possible to run Ubuntu without rebooting the PC with an installation device (CD, USB, ...). That would have saved me some ...


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My workaround (Ubuntu 14.04.1): unplug all hard drives except for the one that Ubuntu is being installed on. That stopped Ubuntu from installing on one disk and grub installing (well, failing to install) on another.


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Try repeatedly pressing F2 while starting the system up instead of just holding it. I'm pretty sure your on the right track with F2, but if you don't see that on screen please check your laptop manual.


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For Samsung NP300E4C .. from: Samsung NP300E5C User Manual > Page 75 Turn the computer on. Immediately press the F2 key several times. You may just have to keep trying. You don't need to change boot-order, as generally better results can be obtained by manually selecting boot device. More modern laptops, with Windows 8.1, do actively prevent you ...


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This question ultimately becomes not a matter of policy within the company you are employed by. You say this is a company laptop and the BIOS is not accessible (assuming administrative lockout), and the force boot to an encrypted hard drive. There are two problems you have here then: (1) The company went to some decent (and possibly expensive, if PGP ...


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It looks like this notebook does something software wise to hard disk encryption instead of BIOS, so it won't work that way to install Ubuntu. I did fixmbr first then removed encryption and installed 64-bit ubuntu from scratch. It does seem to run better as it is a slow but 64-bit cpu and xp pro was seen also during the setup process. I will likely end up ...


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It appears to me that I've answered my own question. After formatting the external drive and doing a clean install of 14.04 (as opposed to 14.10) I was still having the same problems. It would seem, after a great deal more reading on the subject, that either through my own sheer ignorance or mysterious dual UEFI Bios gremlins I managed to install a ...


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When top does not identify CPU usage or I/O wait as the source of the load average, then typically it is a task or tasks in uninterruptible sleep (one task in your case). Identify them with this command: ps -e -o state,pid,cmd | grep ^D vmstat can also be used, but only to give the number of tasks in uninterruptible sleep. Example: doug@doug-64:~$ vmstat ...


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That is a lot of lines in that grub.cfg, I use a real basic one for my multiboot USB's, pretty much a set timeout & set default & a few menuentry's... I tried cutting away all the graphics-related stuff, and functions too, and was left with what might work as a no-frills grub.cfg to try out (keep the original as a backup, though it is pasted to ...



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