![]() I’ll list the relevant steps here and add a bit more explanation. This only works with the 64bit version of Windows! This describes how to install Windows 7 64bit onto a hard disk in UEFI mode. Installing Windows 7 using GPT partitions You’ll need a 64bit Windows DVD to install Windows.įor the Linux part you’ll need a USB key or CD/DVD with a UEFI-capable live Linux system, I used Grml full amd64 on a 512MB USB flash drive. Small(ish) SSD: /dev/ sdb, 250GB, Linux-only, so far two partitions (about 50GB System, rest for /home)Įnable UEFI boot in BIOS, but make sure to disable SecureBoot! To do that you may have to remove the keys first (if any).Īll that is done in the BIOS (On mine, press DEL on boot, in that flashy BIOS-like thingy press F7 to go to “Advanced Mode”, there it’s in the “Boot” section).Huge HDD: /dev/ sda, 3TB, planning Windows installation, Linux swap + data. ![]() I only use Windows for gaming, so I won’t spend precious SSD space for it, so I installed Linux (or rather copied an existing installation) to the SSD, using normal MBR partitions (probably GPT would have been a better choice for multiple reasons) and afterwards I wanted to install Windows 7 to the first 150GB of the HDD or so (with an additional bigger partition for Windows games later, the rest of the harddisk will be data on Linux and swap). So my situation was like this: I bought a new PC with one 250GB SSD (Samsung SSD 840 Evo Series), a 3TB hard disk and the aforementioned UEFI-capable Mainboard. I’ll describe how I got Windows to install using GPT partitions on a 3TB harddisk, how to make an existing Linux (Debian Wheezy) installation boot via EFI (using grub-efi) and how I got my Mainboard ( ASUS Z87-A) to boot this and GRUB to chainload (UEFI) Windows. To make things more challenging, Windows doesn’t offer creating a GPT partition table and partitions in the graphical installer (at least for Win7), so one has to use cmd.exe.īut don’t worry, the Linux part also sucks :-) ![]() The original article is kept here for now, but is not maintained in any way.īuy a 2TB for your Windows installation, you have to use GPT partitions (instead of the old MBR style which only supports 2TB with ugly hacks and can’t have a continuous partition from 2TB) – and Windows can only boot from GPT partitions in UEFI mode. ![]()
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