| Hi all, struggling though the docs _create zfs* options I eventually got the disko config to work. However, because I have used encrypted zfs root and /nix datasets (across different pools) I have encountered a dependency issue (I think) on boot.
`
zpool = {
zroot = {
type = "zpool";
mode = {
topology={
type = "topology";
vdev = [
{
members = [ "crucialMx500500g1" ];
}
];
};
};
options = {
# Workaround: cannot import 'zroot': I/O error in disko tests
cachefile = "none";
ashift = "12";
};
rootFsOptions = {
mountpoint = "none";
compression = "lz4";
acltype = "posixacl";
xattr = "sa";
atime = "off";
};
postCreateHook = "zfs list -t snapshot -H -o name | grep -E '^zroot@blank$' || zfs snapshot zroot@blank";
datasets = {
root = {
type = "zfs_fs";
mountpoint = "/";
options = {
encryption = "aes-256-gcm";
keyformat = "passphrase";
keylocation = "prompt";
};
};
};
};
# };
fast = {
type = "zpool";
mode = {
topology={
type = "topology";
vdev = [
{
mode = "mirror";
members = [ "samsung990Pro4t1" "samsung990Pro4t2" ];
}
];
};
};
mountpoint = "/mnt/fast";
options = {
ashift = "12";
};
rootFsOptions = {
mountpoint = "none";
atime = "off";
compression = "lz4";
encryption = "aes-256-gcm";
keyformat = "hex";
keylocation = "file:///etc/zfs/keys/fast.hex";
};
datasets = {
nix = {
type = "zfs_fs";
mountpoint = "/nix";
options = {
compression = "zstd";
};
};
game = {
type = "zfs_volume";
size = "1T";
options = {
volblocksize = "128K";
};
# content = {
# type = "filesystem";
# format = "ntfs";
# };
};
};
};
};
`
Based on the stage 1 boot messages, initrd/linux is loading the key zroot/root via a passphrase, then loading the fast pool key. It can't since the fast pool key is in the zroot/root pool. After failing to load the key it then mounts zroot/root which then now makes the key available.
I have found https://github.com/nix-community/disko/issues/141 but the linked https://github.com/nix-community/disko/pull/218/files only affects creation it seems. Any help would be appreciated.
| 
unmolded_can