Bootloader: Difference between revisions
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Some laptops, mostly those based on Intel Atom (and first-gen 2006-2007 Intel Macs), have a very strange setup: x86_64 CPU, 2-4GB of RAM, and ia-32 bootloader. They usually come with 64-bit Windows 10, which is slow and jerky on such configurations. Installing Linux on these systems is trivial, because most of the time you can just install 32-bit versions, which come with 32-bit UEFI bootloader, and not lose practically anything as amount of RAM is small enough for 32 bits of address. This is not the case with NixOS, though, because by choosing a 32-bit version you lose the prebuilt packages from nixos cache. To install a full 64-bit system with 32-bit bootloader, you need to take the following steps: | Some laptops, mostly those based on Intel Atom (and first-gen 2006-2007 Intel Macs), have a very strange setup: x86_64 CPU, 2-4GB of RAM, and ia-32 bootloader. They usually come with 64-bit Windows 10, which is slow and jerky on such configurations. Installing Linux on these systems is trivial, because most of the time you can just install 32-bit versions, which come with 32-bit UEFI bootloader, and not lose practically anything as amount of RAM is small enough for 32 bits of address. This is not the case with NixOS, though, because by choosing a 32-bit version you lose the prebuilt packages from nixos cache. To install a full 64-bit system with 32-bit bootloader, you need to take the following steps: | ||
# Download both latest "Minimal installation CD, 32-bit Intel/AMD" and "Minimal installation CD, 64-bit Intel/AMD" from | # Download both latest "Minimal installation CD, 32-bit Intel/AMD" and "Minimal installation CD, 64-bit Intel/AMD" from httpshttps://nixos.org/download/#nixos-iso. | ||
# Flash 32-bit version on USB stick and boot it. If it does not boot, then you probably have a 64-bit bootloader and do not need to worry about this tutorial. | # Flash 32-bit version on USB stick and boot it. If it does not boot, then you probably have a 64-bit bootloader and do not need to worry about this tutorial. | ||
# Note: if your system hangs randomly when booted, you can try adding <nowiki>intel_idle.max_cstate=1</nowiki> to kernel parameters before booting (press e when you see systemd-boot prompt to enter editing mode). | # Note: if your system hangs randomly when booted, you can try adding <nowiki>intel_idle.max_cstate=1</nowiki> to kernel parameters before booting (press e when you see systemd-boot prompt to enter editing mode). | ||