I have installed two versions of Ubuntu on two hard drives in my Asus laptop, one running with Ubuntu 14.04 and the other with 15.10. Originally, both systems worked, however, today when booting up and selecting 14.04, it returned an "cannot enumerate usb devices" error, and then froze. 15.10 is starting fine however, this is from where I am writing now.  I made two bootable USB sticks (I tried it from both a Windows machine with Rufus and from Ubuntu 15.10 with unetbootin and the built-in startup disk creator), one with Ubuntu 16.04 and the other with the 64-bit version of Windows 10. All "versions" of the usb sticks return the same results:  Booting from the Windows stick freezes a second after the splash screen with the blue logo appears. Also leaving it for quite a long time (an hour), nothing happens.  Booting from the Ubuntu 16.04 stick shows the initial menu with "Try Ubuntu" and "Install Ubuntu", but it gets stuck at a black screen after selecting either.  The Windows stick is formatted in FAT32 with a GPT partition table, and I made sure it has the file needed for booting.  I have obviously tried changing the boot order, enabled and disabled UEFI boot option, along with several other things.  What could be the reason for this? My aim is the install a clean dual-boot system with Windows on one hard drive and Ubuntu 16.04 on the second.
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I am trying to boot Ubuntu on my computer.  When I boot Ubuntu, it boots to a black screen.  How can I fix this? Table of Contents:
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I was not aware of booting mode and installed ubuntu on my new x64,4 gb ram, Acer ES15 laptop in legacy mode. I read about the feature of uefi mode and would like to switch to uefi. When I boot on legacy mode, ubuntu loads up and system works fine, but when I change my bios setting to uefi it says no bootable device found. Should I install ubuntu again using uefi mode after erasing data? Will that work?.... Is there any other way to get to uefi mode or I need to format and then install ubuntu again using uefi bios mode? Please, help.
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I am trying to install Ubuntu 14.04 / 15.10 on my Dell XPS 13 9350 (November 2015).  I created a bootable USB disk which boots fine but the installer and the file manager do not detect the hard drive.  What is the problem? How can I solve it?
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I have made a BOOTABLE USB installation of Ubuntu 13.04 using . I also have Windows 8 on separate partition. After I finished installing Ubuntu 13.04 from the USB, it went straight to Windows 8 without Grub showing to ask me to select an operating system, how can i fix this ? I don't have UEFI or secure boot.
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Hi I want to try Ubuntu 20.04 without installing it due to some driver issues in my laptop. But I already have 2 OS ( Windows 10 and Ubuntu 20.04 [Dualboot] ), so will trying Ubuntu mess with the already installed Operating systems? And I know how to make live usb and booting from it but don't know how to exit it and then bring my laptop back to normal. Tried finding procedure on internet but reliable results are not found.
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Today I tried several times to install Ubuntu but I have some GPU problems.  I have a bootable stick. When I boot in UEFI mode all its normal but the installer isn't able to install the boot loader.  When I boot in leagacy mode I'm able to install Ubuntu but only when I unplug my GPU GTX 1070.  When I don't do that, I get an this initialization error from the installer:  3.021954] nouveau 0000:01:00.0: unknown chipset (134000a1)   I installed Ubuntu normally without the GPU. I installed the drivers, rebooted, shut down, pluggeed in the GPU and tried to boot but it got stuck at:  /dev/mapper/isw_bdifbbjbai_Raid0p3: clean, 191449/8855552 files, 1677252/34500448 blocks   What should I do? When I unplug the GPU I can boot easily, but I need my GPU! :D  My PC has a GTX 1070 GPU, i7 4790K CPU, and two hard drives:   250 GB M.2 SSD, which contains Windows 10 and its boot loader. 2 TB RAID-0 WD, with 1,85 TB for Windows 10 files and 150GB where I installed Ubuntu and its boot loader.
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I just installed a fresh copy of 12.04 on a new Lenovo ThinkCentere from a USB drive, and when I restarted after installation, the boot sequence didn't find the OS. Instead I got the 'no operating system found' error. When I started Ubuntu from the USB, I could see the HDD and that it had all the installed files. I just couldn't boot into it. It appeared that GRUB was not at the right place... or that there was something funky with the MBR. What is the simplest way to fix these sorts of errors?  Thank you,  EDIT: It appears the problem might have to do with UEFI and GRUB...
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I successfully followed instructions in   to make a bootable usb drive for ubuntu12.04 using the command 'gksudo usb-creator-gtk' in a terminal window - there were no error messages and the final pop message said I can now use the USB drive to successfully boot a system into the latest Ubuntu 12.04  However, on a brand new samsung laptop (NP-300E5Z-A0PIN - a i5 core machine), I get the following message: SYSLINUX 3.63 Debian-2008-07-15 EBIOS Copyright (c)1994-2008 H Peter Anvin Unknown keyword in configuration file Boot:  It hangs there...  Am I missing out any steps... how do I proceed with the installation... Many thanks in advance
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I installed windows 8.1 on my new laptop (which came with freedos), I later tried to dual boot the pc with ubuntu 14.04 (with legacy mode). I didn't get an option to install alongside windows 8 so I went with "something else" option. I created the root and swap partitions and then installed ubuntu. Everything went fine while installation. But after rebooting it directly boots into ubuntu, it does not show the GRUB menu for choosing between ubuntu and windows.   After using 'fixmbr' in the windows installation disc, I can now boot into windows but cannot boot to ubuntu. I deleted the linux partition and tried to the above again but I ended with the same problem.  So I was thinking if there was a solution like a command or something which could make GRUB identify the windows partition and give an option to boot to it.  (if it may help, my windows is installed in legacy mode(as in BIOS mode).. if I disable legacy mode the laptop does not boot into any os and it asks for an EFI file to boot from. Also my liveusb boots only through UEFI mode. When I boot it in normal/BIOS mode it shows a blinking '_' )  Please help guys.. I need both the OSes for my projects. And I need them fast.  Thanx in advance..
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When I was installing Ubuntu 11.10 64-bit on my new PC from a flash drive since the only computers I have do not have disk drives, I ran into a problem.  After the ASUS logo when switching on the PC, and pressing F8 to select the USB flash drive, there was the options thing as normal that allows me to select to either boot form the flash drive or install on the HDD, when I do either of these, there is a bunch of text on a black background, as I would expect, but after a few seconds the screen goes blank and the monitor says No signal.  I have previously installed Ubuntu with a flash drive to fix issues caused my Windows and ran into no problems.  Is it a problem with the pen drive I am using? Or maybe a problem with the system? I tried it in my USB 3.0 ports at the back and the USB 2.0 ones as well.  My Specs are:   &nbsp;&nbsp;AMD Phenom II x4 965BE &nbsp;&nbsp;ASUS AMD Radeon HD 6670 &nbsp;&nbsp;ASUS M5-L75 USB3 (typing this from memory, it's an AM3+ ASUS board with USB3.0 in the AMD700 chipet or something) &nbsp;&nbsp;Corsair XMS3 DDR3 4GB(2x2GB) 1333MHz RAM    I ran the memtest program on the flash drive as well, and it came out clean.
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I have HP G56 laptop and it originally came with Windows 7 which microsoft updated to windows 10 for free. I did clean install and so i don't have option to go back to windows 7.   I want to try Ubuntu as after upgrading to windows 10, my laptop runs slow. I have created bootable USB several times but can't make my laptop to boot. I saw tutorials and already setup bios to boot from USB first and also turnoff fast boot from power option. I can however use other USB for windows 10 that i have and that works but not from Ubuntu USB
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I have an ISO image of my backup solution's recovery cd. When I burn the image to a CD-ROM, I can boot from it in UEFI or normal mode without problems.   Unfortunately, this is no solution for my laptop, as it does not have an optical drive. Thus,  I tried to create a bootable USB stick that can also boot in UEFI mode, but so far I have not been successful (note that the laptop has UEFI and boots Windows 7 in UEFI mode).  So my question is, if anyone knows how I can get said ISO on my USB stick so that it boots as if I would use a CD-ROM?
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I installed windows 10 on my laptop in UEFI mode with HDD GPT disk format, then I installed Ubuntu 16.04LTS on another partition. So I have Ubuntu dualboot with Windows 10 now.  I also installed rEFInd (it's like GUI for you to choose between different OSs) because I don't wanna use Grub2 as the default bootloader. Now I want to have Windows 7 too, but when I boot from the USB stick, an error screen showed up saying something like  the windows boot manager is having problems due to a recent hardware change   My system is still working fine so I don't know if the problem came from my system or if the setup I want is impossible.
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I've tried several approaches and it still boots directly to Windows 10. It is a Toshiba  with Windows 10 the original OS.  I read and tried to follow all prerequisite steps in , and first tried Ubuntu 14.14 LTS, which installed but showed no dual boot menu.  Various answers and sources  have suggested I could then tell the UEFI to start with Grub 2, but I see no such option. This Toshiba's UEFI config menu has never shown anything but the hard drive and USB as boot sequence options. The only other relevant setting seems to be Safe Boot on/off, which has never seemed to have any effect on behavior at any point in the hours and hours (and more hours) of trying things I have done. There is no "boot mode" option  - I suppose it is UEFI-only (no legacy option)?  The info-packed answerer said 15.04 has always just worked for him, so although I would prefer LTS, I tried Ubuntu 15.04, telling it to replace the 14.14 installation, and it is installed, but is equally unbootable.  I saw the suggestion that Toshiba may be violating the UEFI standard and annoyingly testing for "windows" in the file name and that I could rename the Linux bootloader to windows... but I don't know how to access the EFI partition - I assume I'd need to know how to find and mount it in Linux? I didn't see complete enough directions for my familiarity level, so I didn't try that.  Following advice on , I tried using a EasyBCD and managed to wipe my BCD making Windows 10 unbootable .  The most recent thing I've tried is , which I ran in all its steps but it had no visible effect. Its docs say the final steps should be to show its output data to my favorite help source, so here I am, and .  Any suggestions?
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after a powr failure when upgrading to Ubuntu 12.10 I have a completely deficient system. It is read only and despite many attempts I failed to remount it read write, fsck and mount -o rmount, rw don't work, recovery mode does not work. I am not experienced with linux and under time pressure because have to write a paper until tomorrow and have only this computer.  Thus I thought it was best to reinstall. I have downloaded the iso on my usb stick on another computer. However, I can't us my startup disk creator as my usb stick is not being recognized as the filesystem is read only. I don't have a bootable usb or disk around (I know that's stupid) and I have no one using linux nearby who could help me create the stick. They all have windows.  Thus my question: Can I create a bootable usb on a windows system but to install on a computer which has Ubuntu on it? The wuby client you can download for windows on the ubuntu site is .exe so it would be no use on a computer that has only linux on it?
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I am running a 64bit laptop and i am trying to install ubuntu 11.04 from both a usb and cd.  However, when I click either install from disk or try ubuntu I get to a black screen with this: fixing recursive fault but reboot is needed  Any ideas?
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I want to install Ubuntu 14.04 alongside Windows 8.1. My computer works only with Legacy mode (can't boot Windows when switched to UEFI).   When I boot from usb with Ubuntu it says "This computer currently has no detected operating systems".  How should I proceed to install Ubuntu with Windows?