Hi! I installed GuixSD yesterday and found a bug this morning when trying to build a new system generation.
Here is the config file I use: (use-modules (gnu) (gnu system nss)) (use-service-modules networking) (use-package-modules certs xorg xdisorg fonts admin zsh) (operating-system (host-name "crocmou") (timezone "Europe/Paris") (locale "en_US.UTF-8") (bootloader (grub-configuration (device "/dev/sda"))) (initrd (lambda (file-systems . rest) (apply base-initrd file-systems #:extra-modules '("sata_nv") rest))) (file-systems (cons (file-system (title 'uuid) (device (uuid "a08e57ba-6275-4e22-90e5-1d9b34ae363d")) (mount-point "/") (type "ext4")) %base-file-systems)) (users (cons (user-account (name "kooda") (comment "The otter user") (group "users") (supplementary-groups '("wheel" "netdev" "audio" "video")) (home-directory "/home/kooda") (shell #~(string-append #$zsh "/bin/zsh"))) %base-user-accounts)) ;; This is where we specify system-wide packages. (packages (cons* nss-certs ;for HTTPS access xorg-server xf86-video-ati xf86-input-evdev xf86-video-vesa ;; rxvt-unicode font-terminus font-dejavu htop %base-packages)) (setuid-programs (cons* #~(string-append #$xorg-server "/bin/Xorg") %setuid-programs)) (services (cons* (console-keymap-service "fr-bepo") (dhcp-client-service) %base-services))) Running `guix system build /etc/config.scm` fails with the following error: Backtrace: In unknown file: ?: 19 [apply-smob/1 #<catch-closure 1a4e980>] In ice-9/boot-9.scm: 63: 18 [call-with-prompt prompt0 ...] In ice-9/eval.scm: 432: 17 [eval # #] In ice-9/boot-9.scm: 2401: 16 [save-module-excursion #<procedure 1a6b940 at ice-9/boot-9.scm:4045:3 ()>] 4050: 15 [#<procedure 1a6b940 at ice-9/boot-9.scm:4045:3 ()>] 1724: 14 [%start-stack load-stack ...] 1729: 13 [#<procedure 1a82ea0 ()>] In unknown file: ?: 12 [primitive-load "/gnu/store/vw26xsn24jmrijn939fjjk50m5i4hfq3-guix-0.10.0-0.e901/bin/.guix-real"] In guix/ui.scm: 1209: 11 [run-guix-command system "build" "/etc/config.scm"] In ice-9/boot-9.scm: 157: 10 [catch srfi-34 #<procedure 44f2140 at guix/ui.scm:425:2 ()> ...] 157: 9 [catch system-error ...] In guix/scripts/system.scm: 882: 8 [#<procedure 44f6f90 at guix/scripts/system.scm:874:2 ()>] 788: 7 [process-action build ("/etc/config.scm") ...] In guix/store.scm: 1182: 6 [run-with-store # ...] In guix/scripts/system.scm: 564: 5 [#<procedure 47c8fc0 at guix/scripts/system.scm:564:2 (state)> #] 575: 4 [#<procedure 6d062a0 at guix/scripts/system.scm:564:2 (grub)> #] In srfi/srfi-1.scm: 672: 3 [filter-map #<procedure system->grub-entry (system number time)> # # ...] In ice-9/boot-9.scm: 157: 2 [catch system-error ...] In guix/scripts/system.scm: 404: 1 [#<procedure 7a37d50 at guix/scripts/system.scm:390:4 ()>] In unknown file: ?: 0 [string-append "--root=" ...] ERROR: In procedure string-append: ERROR: In procedure string-append: Wrong type (expecting string): #vu8(160 142 87 186 98 117 78 34 144 229 29 155 52 174 54 61) The odd bytevector from the error seems to be the partition’s UUID, but I get the exact same error when trying to use a label instead of the UUID. I found that this same bytevector is what the current generation refers to as root device: kooda@crocmou:~$ guix system list-generations Generation 1 Jul 01 2016 02:17:52 (current) file name: /var/guix/profiles/system-1-link canonical file name: /gnu/store/94klzjkx49if12x0n9pig3f5xxk3y33a-system label: GNU with Linux-Libre 4.6.3 (beta) root device: #vu8(160 142 87 186 98 117 78 34 144 229 29 155 52 174 54 61) kernel: /gnu/store/alqjsslhc7rh1lskxg2xjh6cs37ms1kd-linux-libre-4.6.3 I also ran `guix pull` this morning so I have a recent version.