diff options
| author | Richard Marko <srk@48.io> | 2018-02-17 23:33:24 +0100 |
|---|---|---|
| committer | Richard Marko <srk@48.io> | 2020-02-05 10:35:59 +0100 |
| commit | 0c20feb231eb9a98bcf8b7ee3f2876302437e8ca (patch) | |
| tree | a51c9b8663fd8bc1e7c5187cf71f8d9882cc63ba /nixos | |
| parent | eacc771f72beeb77317c1661cb6ce8cc7aa99445 (diff) | |
use overlayfs by default for netboot and iso
Diffstat (limited to 'nixos')
| -rw-r--r-- | nixos/modules/installer/cd-dvd/iso-image.nix | 14 | ||||
| -rw-r--r-- | nixos/modules/installer/netboot/netboot.nix | 14 | ||||
| -rw-r--r-- | nixos/modules/system/boot/stage-1-init.sh | 13 |
3 files changed, 26 insertions, 15 deletions
diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix index 11319e5f4f823..4558b4dc95521 100644 --- a/nixos/modules/installer/cd-dvd/iso-image.nix +++ b/nixos/modules/installer/cd-dvd/iso-image.nix @@ -569,14 +569,18 @@ in }; fileSystems."/nix/store" = - { fsType = "unionfs-fuse"; - device = "unionfs"; - options = [ "allow_other" "cow" "nonempty" "chroot=/mnt-root" "max_files=32768" "hide_meta_files" "dirs=/nix/.rw-store=rw:/nix/.ro-store=ro" ]; + { fsType = "overlay"; + device = "overlay"; + options = [ + "lowerdir=/nix/.ro-store" + "upperdir=/nix/.rw-store/store" + "workdir=/nix/.rw-store/work" + ]; }; - boot.initrd.availableKernelModules = [ "squashfs" "iso9660" "uas" ]; + boot.initrd.availableKernelModules = [ "squashfs" "iso9660" "uas" "overlay" ]; - boot.initrd.kernelModules = [ "loop" ]; + boot.initrd.kernelModules = [ "loop" "overlay" ]; # Closures to be copied to the Nix store on the CD, namely the init # script and the top-level system configuration directory. diff --git a/nixos/modules/installer/netboot/netboot.nix b/nixos/modules/installer/netboot/netboot.nix index 5146858cccf5a..95eba86bcb654 100644 --- a/nixos/modules/installer/netboot/netboot.nix +++ b/nixos/modules/installer/netboot/netboot.nix @@ -50,14 +50,18 @@ with lib; }; fileSystems."/nix/store" = - { fsType = "unionfs-fuse"; - device = "unionfs"; - options = [ "allow_other" "cow" "nonempty" "chroot=/mnt-root" "max_files=32768" "hide_meta_files" "dirs=/nix/.rw-store=rw:/nix/.ro-store=ro" ]; + { fsType = "overlay"; + device = "overlay"; + options = [ + "lowerdir=/nix/.ro-store" + "upperdir=/nix/.rw-store/store" + "workdir=/nix/.rw-store/work" + ]; }; - boot.initrd.availableKernelModules = [ "squashfs" ]; + boot.initrd.availableKernelModules = [ "squashfs" "overlay" ]; - boot.initrd.kernelModules = [ "loop" ]; + boot.initrd.kernelModules = [ "loop" "overlay" ]; # Closures to be copied to the Nix store, namely the init # script and the top-level system configuration directory. diff --git a/nixos/modules/system/boot/stage-1-init.sh b/nixos/modules/system/boot/stage-1-init.sh index f520bf54ad1bd..8736613c3d256 100644 --- a/nixos/modules/system/boot/stage-1-init.sh +++ b/nixos/modules/system/boot/stage-1-init.sh @@ -334,8 +334,10 @@ mountFS() { # Filter out x- options, which busybox doesn't do yet. local optionsFiltered="$(IFS=,; for i in $options; do if [ "${i:0:2}" != "x-" ]; then echo -n $i,; fi; done)" + # Prefix (lower|upper|work)dir with /mnt-root (overlayfs) + local optionsPrefixed="$( echo "$optionsFiltered" | sed -E 's#\<(lowerdir|upperdir|workdir)=#\1=/mnt-root#g' )" - echo "$device /mnt-root$mountPoint $fsType $optionsFiltered" >> /etc/fstab + echo "$device /mnt-root$mountPoint $fsType $optionsPrefixed" >> /etc/fstab checkFS "$device" "$fsType" @@ -354,10 +356,11 @@ mountFS() { ;; esac - # Create backing directories for unionfs-fuse. - if [ "$fsType" = unionfs-fuse ]; then - for i in $(IFS=:; echo ${options##*,dirs=}); do - mkdir -m 0700 -p /mnt-root"${i%=*}" + # Create backing directories for overlayfs + if [ "$fsType" = overlay ]; then + for i in upper work; do + dir="$( echo "$optionsPrefixed" | grep -o "${i}dir=[^,]*" )" + mkdir -m 0700 -p "${dir##*=}" done fi |