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| -rw-r--r-- | system/nix/README | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/system/nix/README b/system/nix/README index e59a68ec39..a741331aae 100644 --- a/system/nix/README +++ b/system/nix/README @@ -1,46 +1,48 @@ nix (functional package manager) -Nix is a purely functional package manager. This means that it treats packages -like values in purely functional programming languages such as Haskell -- they -are built by functions that don't have side-effects, and they never change -after they have been built. Nix stores packages in the Nix store, usually the -directory /nix/store, where each package has its own unique subdirectory such -as +Nix is a purely functional package manager. This means that it treats +packages like values in purely functional programming languages such as +Haskell -- they are built by functions that don't have side-effects, +and they never change after they have been built. Nix stores packages +in the Nix store, usually the directory /nix/store, where each package +has its own unique subdirectory such as - /nix/store/b6gvzjyb2pg0kjfwrjmg1vfhh54ad73z-firefox-33.1/ + /nix/store/b6gvzjyb2pg0kjfwrjmg1vfhh54ad73z-firefox-33.1/ where b6gvzjyb2pg0... is a unique identifier for the package that captures all its dependencies (it's a cryptographic hash of the package's build dependency graph). -Nix may be run in single or multi-user mode (which requires the nix-daemon). To -have the nix daemon start and stop with your host, add to /etc/rc.d/rc.local: +Nix may be run in single or multi-user mode (which requires the +nix-daemon). To have the nix daemon start and stop with your host, +add to /etc/rc.d/rc.local: - if [ -x /etc/rc.d/rc.nix ]; then - /etc/rc.d/rc.nix start - fi + if [ -x /etc/rc.d/rc.nix ]; then + /etc/rc.d/rc.nix start + fi and to /etc/rc.d/rc.local_shutdown (creating it if needed): - if [ -x /etc/rc.d/rc.nix ]; then - /etc/rc.d/rc.nix stop - fi + if [ -x /etc/rc.d/rc.nix ]; then + /etc/rc.d/rc.nix stop + fi -The daemon requires users for building the nix packages, which should be added -under the 'nixbld' group. +The daemon requires users for building the nix packages, which should +be added under the 'nixbld' group. - groupadd -g 314 nixbld - for n in $(seq 1 10); do useradd -c "Nix build user $n" \ - -d /var/empty -g nixbld -G nixbld -M -N -r -s "$(which nologin)" \ - nixbld$n; done + groupadd -g 314 nixbld + for n in $(seq 1 10); do useradd -c "Nix build user $n" \ + -d /var/empty -g nixbld -G nixbld -M -N -r -s "$(which nologin)" \ + nixbld$n; done -Restricting access to the daemon is acheived by setting file permissions for -the daemon's socket's folder. +Restricting access to the daemon is acheived by setting file permissions +for the daemon's socket's folder. - chgrp nix-users /nix/var/nix/daemon-socket - chmod ug=rwx,o= /nix/var/nix/daemon-socket + chgrp nix-users /nix/var/nix/daemon-socket + chmod ug=rwx,o= /nix/var/nix/daemon-socket -Correct permissions must also be set for the following profile directories to give users access. +Correct permissions must also be set for the following profile directories +to give users access. - /nix/var/nix/profiles - /var/nix/profiles + /nix/var/nix/profiles + /var/nix/profiles |