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Add swapoff flag #454

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Add swapoff flag #454

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3e9baa8
Add swapoff flag
pmaterer Jan 14, 2025
da850f4
Update docs
pmaterer Jan 14, 2025
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2 changes: 2 additions & 0 deletions docs/cli.md
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Original file line number Diff line number Diff line change
Expand Up @@ -53,4 +53,6 @@ Options:
build the closure on the remote machine instead of locally and copy-closuring it
* --vm-test
build the system and test the disk configuration inside a VM without installing it to the target.
* --swapoff
turn off swap devices during reboot phase. Enable this if creating a ZFS swap device so it is exported.
```
10 changes: 9 additions & 1 deletion src/nixos-anywhere.sh
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Expand Up @@ -12,6 +12,7 @@ diskoMode="disko"
nixosSystem=""
extraFiles=""
vmTest="n"
swapoff="n"
nixOptions=(
--extra-experimental-features 'nix-command flakes'
"--no-write-lock-file"
Expand Down Expand Up @@ -117,6 +118,8 @@ Options:
* --generate-hardware-config nixos-facter|nixos-generate-config <path>
generate a hardware-configuration.nix file using the specified backend and write it to the specified path.
The backend can be either 'nixos-facter' or 'nixos-generate-config'.
* --swapoff
turn off swap devices during reboot phase. Enable this if creating a ZFS swap device so it is exported.
* --phases
comma separated list of phases to run. Default is: kexec,disko,install,reboot
kexec: kexec into the nixos installer
Expand Down Expand Up @@ -289,6 +292,9 @@ parseArgs() {
--vm-test)
vmTest=y
;;
--swapoff)
swapoff=y
;;
*)
if [[ -z ${sshConnection} ]]; then
sshConnection="$1"
Expand Down Expand Up @@ -619,7 +625,9 @@ if [[ ${phases[reboot]} == 1 ]]; then
if command -v zpool >/dev/null && [ "\$(zpool list)" != "no pools available" ]; then
# we always want to export the zfs pools so people can boot from it without force import
umount -Rv /mnt/
swapoff -a
if [[ ${swapoff} == "y" ]]; then
swapoff -a
fi
zpool export -a || true
fi
nohup sh -c 'sleep 6 && reboot' >/dev/null &
Expand Down
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