Guix is not possible to start swap device/dev/sda2. I noticed this: # guix system reconfigure /etc/config.scm ... guix system: error: exception caught while executing 'start' on service 'swap-/dev/sda2': In procedure swapon: "/dev/sda2": Invalid argument... # cat /etc/config.scm ... (operating-system (host-name "antelope") (timezone "Europe/Moscow") (locale "en_US.utf8")   (bootloader (bootloader-configuration                 (bootloader grub-bootloader)                 (target "/dev/sda")))   (file-systems (cons (file-system                         (device "/dev/sda1") (mount-point "/") (type "ext4"))                       %base-file-systems))   (swap-devices '("/dev/sda2"))   (users (cons* (user-account (name "bob") (group "users")...... I've read manual and I do not know what is wrong: https://git.savannah.gnu.org/cgit/guix.git/tree/doc/guix.texi?id=1c6c0ad067b558fcbebd87e8cb51d342d808163e#n6878 # free -m               total        used        free      shared  buff/cache   available Mem:           1880        1187          44         181         649         701 Swap:             0           0           0 Swap really did not worked ever in my Guix installation. Let me know what ought to be done?