And the postgres service has these environment variables:
HOME=/
TERM=linux
BOOT_IMAGE=/gnu/store/1w33nqlw4il84i4xr3pif45insmz82ln-linux-libre-4.7.2/bzImage
--root=dayas:/
--system=/gnu/store/v4za34zybd8743cvxyx9j73w492c7nca-system
--load=/gnu/store/v4za34zybd8743cvxyx9j73w492c7nca-system/boot
crashkernel=256M
root_trim=yes
PATH=/gnu/store/qfqdkv99yhjqlza4sz198vzx03pnsg8i-shadow-4.2.1/sbin
No locale stuff...
Also, crashkernel=256M and root_trim come from my (kernel-arguments
'("crashkernel=256M" "modprobe.blacklist=pcspkr,snd_pcsp" "quiet"
"acpi_osi=Linux" "clocksource=acpi_pm" "allow-discards" "root_trim=yes"))
