248 lines
7.5 KiB
Nix
248 lines
7.5 KiB
Nix
import ./make-test.nix ({ pkgs, ... }:
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with pkgs.lib;
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let
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ksExt = pkgs.writeText "ks-ext4" ''
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clearpart --all --initlabel --drives=vdb
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part /boot --recommended --label=boot --fstype=ext2 --ondisk=vdb
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part swap --recommended --label=swap --fstype=swap --ondisk=vdb
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part /nix --size=500 --label=nix --fstype=ext3 --ondisk=vdb
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part / --recommended --label=root --fstype=ext4 --ondisk=vdb
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'';
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ksBtrfs = pkgs.writeText "ks-btrfs" ''
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clearpart --all --initlabel --drives=vdb,vdc
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part swap1 --recommended --label=swap1 --fstype=swap --ondisk=vdb
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part swap2 --recommended --label=swap2 --fstype=swap --ondisk=vdc
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part btrfs.1 --grow --ondisk=vdb
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part btrfs.2 --grow --ondisk=vdc
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btrfs / --data=0 --metadata=1 --label=root btrfs.1 btrfs.2
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'';
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ksF2fs = pkgs.writeText "ks-f2fs" ''
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clearpart --all --initlabel --drives=vdb
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part swap --recommended --label=swap --fstype=swap --ondisk=vdb
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part /boot --recommended --label=boot --fstype=f2fs --ondisk=vdb
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part / --recommended --label=root --fstype=f2fs --ondisk=vdb
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'';
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ksRaid = pkgs.writeText "ks-raid" ''
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clearpart --all --initlabel --drives=vdb,vdc
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part raid.01 --size=200 --ondisk=vdb
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part raid.02 --size=200 --ondisk=vdc
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part swap1 --size=500 --label=swap1 --fstype=swap --ondisk=vdb
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part swap2 --size=500 --label=swap2 --fstype=swap --ondisk=vdc
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part raid.11 --grow --ondisk=vdb
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part raid.12 --grow --ondisk=vdc
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raid /boot --level=1 --fstype=ext3 --device=md0 raid.01 raid.02
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raid / --level=1 --fstype=xfs --device=md1 raid.11 raid.12
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'';
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ksRaidLvmCrypt = pkgs.writeText "ks-lvm-crypt" ''
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clearpart --all --initlabel --drives=vdb,vdc
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part raid.1 --grow --ondisk=vdb
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part raid.2 --grow --ondisk=vdc
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raid pv.0 --level=1 --encrypted --passphrase=x --device=md0 raid.1 raid.2
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volgroup nixos pv.0
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logvol /boot --size=200 --fstype=ext3 --name=boot --vgname=nixos
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logvol swap --size=500 --fstype=swap --name=swap --vgname=nixos
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logvol / --size=1000 --grow --fstype=ext4 --name=root --vgname=nixos
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'';
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in {
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name = "partitiion";
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machine = { pkgs, ... }: {
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environment.systemPackages = [
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pkgs.pythonPackages.nixpart0
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pkgs.file pkgs.btrfs-progs pkgs.xfsprogs pkgs.lvm2
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];
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virtualisation.emptyDiskImages = [ 4096 4096 ];
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};
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testScript = ''
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my $diskStart;
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my @mtab;
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sub getMtab {
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my $mounts = $machine->succeed("cat /proc/mounts");
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chomp $mounts;
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return map [split], split /\n/, $mounts;
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}
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sub parttest {
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my ($desc, $code) = @_;
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$machine->start;
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$machine->waitForUnit("default.target");
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# Gather mounts and superblock
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@mtab = getMtab;
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$diskStart = $machine->succeed("dd if=/dev/vda bs=512 count=1");
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subtest($desc, $code);
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$machine->shutdown;
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}
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sub ensureSanity {
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# Check whether the filesystem in /dev/vda is still intact
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my $newDiskStart = $machine->succeed("dd if=/dev/vda bs=512 count=1");
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if ($diskStart ne $newDiskStart) {
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$machine->log("Something went wrong, the partitioner wrote " .
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"something into the first 512 bytes of /dev/vda!");
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die;
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}
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# Check whether nixpart has unmounted anything
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my @currentMtab = getMtab;
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for my $mount (@mtab) {
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my $path = $mount->[1];
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unless (grep { $_->[1] eq $path } @currentMtab) {
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$machine->log("The partitioner seems to have unmounted $path.");
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die;
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}
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}
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}
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sub checkMount {
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my $mounts = $machine->succeed("cat /proc/mounts");
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}
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sub kickstart {
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$machine->copyFileFromHost($_[0], "/kickstart");
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$machine->succeed("nixpart -v /kickstart");
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ensureSanity;
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}
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sub ensurePartition {
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my ($name, $match) = @_;
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my $path = $name =~ /^\// ? $name : "/dev/disk/by-label/$name";
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my $out = $machine->succeed("file -Ls $path");
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my @matches = grep(/^$path: .*$match/i, $out);
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if (!@matches) {
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$machine->log("Partition on $path was expected to have a " .
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"file system that matches $match, but instead has: $out");
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die;
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}
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}
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sub ensureNoPartition {
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$machine->succeed("test ! -e /dev/$_[0]");
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}
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sub ensureMountPoint {
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$machine->succeed("mountpoint $_[0]");
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}
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sub remountAndCheck {
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$machine->nest("Remounting partitions:", sub {
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# XXX: "findmnt -ARunl -oTARGET /mnt" seems to NOT print all mounts!
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my $getmounts_cmd = "cat /proc/mounts | cut -d' ' -f2 | grep '^/mnt'";
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# Insert canaries first
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my $canaries = $machine->succeed($getmounts_cmd . " | while read p;" .
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" do touch \"\$p/canary\";" .
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" echo \"\$p/canary\"; done");
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# Now unmount manually
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$machine->succeed($getmounts_cmd . " | tac | xargs -r umount");
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# /mnt should be empty or non-existing
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my $found = $machine->succeed("find /mnt -mindepth 1");
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chomp $found;
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if ($found) {
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$machine->log("Cruft found in /mnt:\n$found");
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die;
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}
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# Try to remount with nixpart
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$machine->succeed("nixpart -vm /kickstart");
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ensureMountPoint("/mnt");
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# Check if our beloved canaries are dead
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chomp $canaries;
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$machine->nest("Checking canaries:", sub {
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for my $canary (split /\n/, $canaries) {
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$machine->succeed("test -e '$canary'");
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}
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});
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});
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}
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parttest "ext2, ext3 and ext4 filesystems", sub {
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kickstart("${ksExt}");
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ensurePartition("boot", "ext2");
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ensurePartition("swap", "swap");
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ensurePartition("nix", "ext3");
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ensurePartition("root", "ext4");
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ensurePartition("/dev/vdb4", "boot sector");
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ensureNoPartition("vdb6");
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ensureNoPartition("vdc1");
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remountAndCheck;
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ensureMountPoint("/mnt/boot");
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ensureMountPoint("/mnt/nix");
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};
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parttest "btrfs filesystem", sub {
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$machine->succeed("modprobe btrfs");
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kickstart("${ksBtrfs}");
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ensurePartition("swap1", "swap");
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ensurePartition("swap2", "swap");
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ensurePartition("/dev/vdb2", "btrfs");
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ensurePartition("/dev/vdc2", "btrfs");
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ensureNoPartition("vdb3");
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ensureNoPartition("vdc3");
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remountAndCheck;
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};
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parttest "f2fs filesystem", sub {
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$machine->succeed("modprobe f2fs");
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kickstart("${ksF2fs}");
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ensurePartition("swap", "swap");
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ensurePartition("boot", "f2fs");
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ensurePartition("root", "f2fs");
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remountAndCheck;
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ensureMountPoint("/mnt/boot", "f2fs");
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};
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parttest "RAID1 with XFS", sub {
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kickstart("${ksRaid}");
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ensurePartition("swap1", "swap");
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ensurePartition("swap2", "swap");
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ensurePartition("/dev/md0", "ext3");
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ensurePartition("/dev/md1", "xfs");
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ensureNoPartition("vdb4");
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ensureNoPartition("vdc4");
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ensureNoPartition("md2");
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remountAndCheck;
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ensureMountPoint("/mnt/boot");
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};
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parttest "RAID1 with LUKS and LVM", sub {
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kickstart("${ksRaidLvmCrypt}");
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ensurePartition("/dev/vdb1", "data");
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ensureNoPartition("vdb2");
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ensurePartition("/dev/vdc1", "data");
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ensureNoPartition("vdc2");
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ensurePartition("/dev/md0", "luks");
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ensureNoPartition("md1");
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ensurePartition("/dev/nixos/boot", "ext3");
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ensurePartition("/dev/nixos/swap", "swap");
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ensurePartition("/dev/nixos/root", "ext4");
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remountAndCheck;
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ensureMountPoint("/mnt/boot");
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};
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'';
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})
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