Triple boot: Windows 10, 7, and Ubuntu












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So my main HD is a windows 10 and I decided to install Ubuntu as a dual boot, and everything was fine. I could choose which one to boot to in the menu on start up, either windows 10 or ubuntu.



Today I have tried to install windows 7 aswell, to have a triple boot. The problem is now, my computer always boots up windows 7 and I don't have the option to choose any other OS. Could someone please help me? The internet on the windows 7 doesn't work either so I feel like I'm completely screwed over.



Thanks in advance for any help.










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    0















    So my main HD is a windows 10 and I decided to install Ubuntu as a dual boot, and everything was fine. I could choose which one to boot to in the menu on start up, either windows 10 or ubuntu.



    Today I have tried to install windows 7 aswell, to have a triple boot. The problem is now, my computer always boots up windows 7 and I don't have the option to choose any other OS. Could someone please help me? The internet on the windows 7 doesn't work either so I feel like I'm completely screwed over.



    Thanks in advance for any help.










    share|improve this question














    bumped to the homepage by Community 13 mins ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.


















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      So my main HD is a windows 10 and I decided to install Ubuntu as a dual boot, and everything was fine. I could choose which one to boot to in the menu on start up, either windows 10 or ubuntu.



      Today I have tried to install windows 7 aswell, to have a triple boot. The problem is now, my computer always boots up windows 7 and I don't have the option to choose any other OS. Could someone please help me? The internet on the windows 7 doesn't work either so I feel like I'm completely screwed over.



      Thanks in advance for any help.










      share|improve this question














      So my main HD is a windows 10 and I decided to install Ubuntu as a dual boot, and everything was fine. I could choose which one to boot to in the menu on start up, either windows 10 or ubuntu.



      Today I have tried to install windows 7 aswell, to have a triple boot. The problem is now, my computer always boots up windows 7 and I don't have the option to choose any other OS. Could someone please help me? The internet on the windows 7 doesn't work either so I feel like I'm completely screwed over.



      Thanks in advance for any help.







      dual-boot






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      asked Jun 11 '17 at 18:05









      OliverOliver

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      bumped to the homepage by Community 13 mins ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community 13 mins ago


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          The issue is bootloaders, where to write them, and how to keep "the one" from being over written.



          Personally I'd run Ubuntu as the only bare-metal OS and use Virtualbox for the Windows systems. Of course, you can do the same iwth Windows 10, and virtualize Win7 and Ubuntu.



          To get back your Ubuntu and Win10 bootloader download the Ubuntu ISO, boot it, open a terminal, mount your Ubuntu / partition, chroot to it, and re-run the grub-install.



          sudo mkdir /rescue-system
          sudo mount /dev/sda5 /rescue-system


          Note - change /dev/sda5 in the previous line to match whatever partition your / partition really is



          sudo mount --bind /dev/ /rescue-system/dev
          sudo chroot /rescue-system
          mount -t proc none /proc
          mount -t sysfs none /sys
          mount -t devpts none /dev/pts
          grub-install /dev/sda


          Then simply exit out of the chroot and reboot.






          share|improve this answer























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            The issue is bootloaders, where to write them, and how to keep "the one" from being over written.



            Personally I'd run Ubuntu as the only bare-metal OS and use Virtualbox for the Windows systems. Of course, you can do the same iwth Windows 10, and virtualize Win7 and Ubuntu.



            To get back your Ubuntu and Win10 bootloader download the Ubuntu ISO, boot it, open a terminal, mount your Ubuntu / partition, chroot to it, and re-run the grub-install.



            sudo mkdir /rescue-system
            sudo mount /dev/sda5 /rescue-system


            Note - change /dev/sda5 in the previous line to match whatever partition your / partition really is



            sudo mount --bind /dev/ /rescue-system/dev
            sudo chroot /rescue-system
            mount -t proc none /proc
            mount -t sysfs none /sys
            mount -t devpts none /dev/pts
            grub-install /dev/sda


            Then simply exit out of the chroot and reboot.






            share|improve this answer




























              0














              The issue is bootloaders, where to write them, and how to keep "the one" from being over written.



              Personally I'd run Ubuntu as the only bare-metal OS and use Virtualbox for the Windows systems. Of course, you can do the same iwth Windows 10, and virtualize Win7 and Ubuntu.



              To get back your Ubuntu and Win10 bootloader download the Ubuntu ISO, boot it, open a terminal, mount your Ubuntu / partition, chroot to it, and re-run the grub-install.



              sudo mkdir /rescue-system
              sudo mount /dev/sda5 /rescue-system


              Note - change /dev/sda5 in the previous line to match whatever partition your / partition really is



              sudo mount --bind /dev/ /rescue-system/dev
              sudo chroot /rescue-system
              mount -t proc none /proc
              mount -t sysfs none /sys
              mount -t devpts none /dev/pts
              grub-install /dev/sda


              Then simply exit out of the chroot and reboot.






              share|improve this answer


























                0












                0








                0







                The issue is bootloaders, where to write them, and how to keep "the one" from being over written.



                Personally I'd run Ubuntu as the only bare-metal OS and use Virtualbox for the Windows systems. Of course, you can do the same iwth Windows 10, and virtualize Win7 and Ubuntu.



                To get back your Ubuntu and Win10 bootloader download the Ubuntu ISO, boot it, open a terminal, mount your Ubuntu / partition, chroot to it, and re-run the grub-install.



                sudo mkdir /rescue-system
                sudo mount /dev/sda5 /rescue-system


                Note - change /dev/sda5 in the previous line to match whatever partition your / partition really is



                sudo mount --bind /dev/ /rescue-system/dev
                sudo chroot /rescue-system
                mount -t proc none /proc
                mount -t sysfs none /sys
                mount -t devpts none /dev/pts
                grub-install /dev/sda


                Then simply exit out of the chroot and reboot.






                share|improve this answer













                The issue is bootloaders, where to write them, and how to keep "the one" from being over written.



                Personally I'd run Ubuntu as the only bare-metal OS and use Virtualbox for the Windows systems. Of course, you can do the same iwth Windows 10, and virtualize Win7 and Ubuntu.



                To get back your Ubuntu and Win10 bootloader download the Ubuntu ISO, boot it, open a terminal, mount your Ubuntu / partition, chroot to it, and re-run the grub-install.



                sudo mkdir /rescue-system
                sudo mount /dev/sda5 /rescue-system


                Note - change /dev/sda5 in the previous line to match whatever partition your / partition really is



                sudo mount --bind /dev/ /rescue-system/dev
                sudo chroot /rescue-system
                mount -t proc none /proc
                mount -t sysfs none /sys
                mount -t devpts none /dev/pts
                grub-install /dev/sda


                Then simply exit out of the chroot and reboot.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jun 11 '17 at 18:32









                ivanivanivanivan

                3,6721414




                3,6721414






























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