I recently got a computer from school. It came with Windows 8.1 installed. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows 10. I then installed Ubuntu alongside both Windows 8 and 10.
June 7th, 2016, 07:17 PM
Hi folks,
i really need your help. ive been since 1 week now, registered to 4 forums.. no one could help . i will explain the situation in the shortest way : i often repair systems, laptop etc for friends. now i need a faster better workflow lets say - i want to do it that way. i run a windows 10 x64 machine with 4 hard drives. 1 of these hdds is a 160gb sata drive. its actually partitioned this way : X: NTFS, primary, 20gb, active. << i put an extracted windows 10 iso there Y: NTFS, primary, 20gb << i put an extracted windows 8 iso there Z: NTFS, primary, 20gb << i put an extracted windows 7 iso there i used cmd.exe as admin X: cd boot bootsect.exe /nt60 X: /force (this made partition X bootable) now i can put this internal sata drive into any pc and INSTALL windows 10 from it.. to any other installed mediums on that pc. fine. the problem : i need a bootmenue/bootloader like this : 1.) .install windows 10 (background bootloader operations : boot hd0,partition1 ((drive X) 2.) .install windows 8 (background bootloader operations : boot hd0,partition2 ((drive X) 3.) .install windows 7 (background bootloader operations : boot hd0,partition3 ((drive X) i thought, GRUB4DOS would easily be able to do this ? can anyone send me the correct menu.lst or code snippet, what it would look like ? i dont know, HOW to install grub4dos onto that internal HDD :( im really messed up at this point, dont know how to handle this :/ UPDATE : just needs MBR.. maybe UEFI later. thanks so much Kon Note that I made a separate 255MB ext2 partition for /boot. Now, when I boot the computer, I first see a GRUB prompt (I already un-hid the grub prompt 'cuz I like it that way) with Windows 8 and Ubuntu options. However, there is no Windows 10 option. If I select Ubuntu, the computer boots into Ubuntu. However, if I select the Windows 8 option, I then get sent to the Windows bootloader, where it then gives me options to boot either Windows 8 or Windows 10. (However, by this point, the computer has already loaded the kernel and all. Apparently Microsoft misunderstood the concept of a bootloader and decided that that meant 'boot practically the entire system before actually showing the bootloader'. Typical Microsoft.) How can I disable the Windows bootloader and add a Windows 10 option to GRUB?EDIT: Someone has answered telling me to disable the Windows bootloader. However, I still do not know how to add Windows to the GRUB OS list. Can anyone help with this? EDIT 2: After removing Windows 10 from the Windows bootloader with EasyBCD, it seemed that, after a few reboots, it would continually unhide itself and Windows 10 would reappear. However, I then later deleted Windows 10 from the list of OSes in msconfig, and it seems to have stayed deleted. However, I STILL have not managed to get Windows 10 to appear in GRUB. It's as if GRUB simply doesn't detect it. Also, I'll put this in the question so that people see it - I have tried using
Hitechcomputergeek
HitechcomputergeekHitechcomputergeek
6 AnswersUse: commands in terminal of Ubuntu, probably it will solve your problem. By this command system will automatically detect window installation and add them to grub list.
Neel ShahNeel Shah
Sometimes os-prober is wrong. Look at the UUID of your Windows 10 partition, for exemple: Then edit Don't forget to change the UUID. And finally update your grub config file:
norajnoraj
use this app EasyBCD for windows http://neosmart.net/EasyBCD/ download the free version and install it. when you open it you will see an entry for windows 8 and one for windows 10. delete the windows 8 entry and you'll be good to go. Update after doing the steps above go back to Ubuntu, open the terminal by pressing ctrl+alt+T Free software download softonic. then copy past this commands to it one after another, and by this you will install a tool called boot-repair. open boot repair from dash and you'll get this window choose the recommended repair and follow the steps. Note you have to be connected to the Internet when using boot-repair.
RonnieDroidRonnieDroid
This solution provides a proper entry in the grub2 menu and chainloads directly into Windows 10 without reference to the BIOS. It comes from https://ihaveabackup.net/article/grub2-entry-for-windows-10-uefi so I claim no credit. It was such a relief to find a working solution Ppsspp iso for android. Briefly, edit /etc/grub.d/40_custom and add: To find the UUID for the --set=root line (CC66-4B02 in the example) you use sudo fdisk -l to identify the EFI partition then sudo blkid /dev/sda1 (or whatever) to find the UUID of the EFI partition. Note it's not the Windows partition but the EFI one you need. Once you've saved the edit, run sudo update-grub to generate the /boot/grub/menu.cfg file and then restart to test.
peterthevicarpeterthevicar
As far as I understood your question you have two different Windows installations on one or more harddrives and you don't want the Windows loader to get in the way or managing both Windows installations. I remember that it was possible on legacy setups to directly boot the Windows kernel from Grub (I may be wrong here) but I haven't been able to do this on UEFI setups. Having two independent Windows bootloader configurations that can be called from Grub independently should be very close to what you are looking for. It came with Windows 8.1 installed. I'm going to assume that this is a UEFI capable computer.
N.B.: Your request was to be able to manage all OSes with Grub, however with UEFI, the traditional 'dualboot' term becomes almost a misnomer. UEFI allows coexistence of several bootloaders on the ESP and you can choose which one to boot (if they have been registered in the UEFI firmware and the manufacturers firmware doesn't do out of spec patronizing like only booting Windows). The sad thing here is that only very few people can think about installing more than one (independent) version of Windows, Linux or one release of Ubuntu onto one computer (or a harddrive that is used with several computers and boots a different installation of the same OS release on each computer). Most of this is already possible, but mechanisms in Windows and Ubuntu (Fedora,…) plainly choose to overwrite what is in their namespace under the false assumption that there can only be one. (I do boot Windows8/10, Ubuntu, Ubuntu LTS and Fedora on one computer and have tinkered a few times with UEFI booting under different requirements.)
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LiveWireBTLiveWireBT
Just login to your Ubuntu OS, open a terminal: reboot
NidhanNidhan
Not the answer you're looking for? Browse other questions tagged bootdual-bootgrub2 or ask your own question.I just downloaded the 64-bit Windows 10 ISO, and trying to create a pendrive installer (since my computer doesn't have an optical drive). The system I have available is Ubuntu 14.04, which is the same machine I'm trying to install Windows 10 to. I tried every method listed in an Ask Ubuntu question, however the result is consistent: the drive is formatted properly, all files including the When I restart the computer, press F8 during POST to select where to boot and pick the USB, the screen just flashes and goes back to the normal GRUB screen. Grub4dos Windows 10Context: I have a dual boot of Win7 + Ubuntu installed to different HDDs. The USB stick is a generic, 8GB USB 2.0. Specs: AMD FX-6300, ASUS M5A97, 8GB RAM, a 500GB HDD (Win7) and a 1TB HDD (2 partitions, 300GB Ubuntu, 700 generic/shared with Windows)
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KroltanKroltan
1 AnswerYou can install Windows 10 from Ubuntu without even making a bootable USB. If you have the Windows 10 Setup ISO, extract all its contents to a separate partition, and then add a grub boot entry to boot from there. First, Mount the ISO sudo mount -o loop [ISO_Path] [Mount_Point] Copy its content to any other partition. Remember don't extract it into a Folder, just put all in the root of the drive(like D: or E:). Windows can not see ext3/4 filesystem, so put it either in a NTFS or Fat16/32 partition. Now add a new menuentry in /boot/grub/grub.cfg Here (hdX,Y) is the source where you have extracted the ISO image. Now restart your computer and select Windows 10 from boot menu to continue installation. Watch This On Youtube ->https://www.youtube.com/watch?v=1Y4JXv9r5Ug
SumanSuman
Not the answer you're looking for? Browse other questions tagged ubuntubootusbwindows-10 or ask your own question.Comments are closed.
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