Re: System installation from a USB stick

From: Ludovic Courtès Subject: Re: System installation from a USB stick Date: Mon, 30 Jun 2014 00:22:31 +0200 User-agent: Gnus/5.130009 (Ma Gnus v0.9) Emacs/24.3 (gnu/linux)

Hello! I’ve uploaded a USB installation image for x86_64 for testing: http://www.fdn.fr/~lcourtes/software/guix/gnu-usb-install-20140629.x86_64.xz SHA1: d36e70d25b81b734fa9558a5446fabb96489ec3b (100 MiB) It works like this: 1. Run ‘xz -d gnu-usb-install-20140629.x86_64.xz’. 2. Copy it as is to a USB stick that of 1GiB or more: dd if=gnu-usb-install-20140629.x86_64 of=/dev/sdX where sdX is the device corresponding to the USB stick. Then you can boot on the USB stick. There’s a bit of documentation on tty2, but it lacks what follows. ;-) To install the system, you would: 1. Configure the network, by running ‘dhclient eth0’ for instance. Normally udev automatically loads device drivers (e.g., my laptop uses e1000e for Ethernet), but since it’s a small config kernel, it may miss drivers for your system, in which case you’re screwed. 2. Partition, format etc. the target drive; the image includes Parted, fdisk, and e2fsprogs. 3. Write an OS configuration file, say, config.scm (the image only has GNU Zile as the editor.) A minimal config looks like this: (use-modules (gnu) (gnu system grub)) (operating-system (host-name "foo") (timezone "Europe/Paris") (locale "en_US.UTF-8") (bootloader (grub-configuration (device "/dev/sdX"))) (file-systems (list (file-system (device "/dev/sdX1") (mount-point "/") (type "ext4"))))) 4. Mount the target root file system as /mnt, say. 5. Run ‘guix system init config.scm /mnt’ (add ‘--no-grub’ if you don’t want to install GRUB.) 6. Unmount /mnt, reboot, and cross fingers. There are various limitations, so be indulgent. Notably, the kernel has few drivers. The image is insanely big due to <http://bugs.gnu.org/17853>. Swap partitions, dm-crypt’d devices aren’t supported yet. Still, I would very much like feedback about actual attempts to use that, about the general procedure, or anything else. The image was built with guix system disk-image gnu/system/install.scm --image-size=800MiB as of commit 1ddbd9f. Ludo’.

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