iso: document iso cache / closures (speed!)
This commit is contained in:
parent
8e3777ff34
commit
faa8558240
@ -46,6 +46,18 @@ _Note: the [static link-local IPv6 address][staticLLA] and [MulticastDNS][mDNS]
|
||||
configured on the live installer. If you wish to enable [MulticastDNS][mDNS]
|
||||
for your environment, you ought to configure that in a regular [profile](../../profiles)._
|
||||
|
||||
## ISO image nix store & cache
|
||||
|
||||
The iso image holds the store to the live environment and _also_ acts as a binay cache
|
||||
to the installer. To considerably speed up things, the image already includes all flake
|
||||
`inputs` as well as the `devshell` closures.
|
||||
|
||||
While you _could_ provision any machine with a single stick, a bespoke iso maximises
|
||||
those local cache hits.
|
||||
|
||||
For hosts that don't differ too much, a common usb stick might be ok, whereas when
|
||||
there are bigger differences, a bespoke usb stick will be considerably faster.
|
||||
|
||||
## EUI-64 LLA & Host Identity
|
||||
|
||||
The iso's IPv6 Link Local Address (LLA) is configured with a static 64-bit Extended
|
||||
@ -97,11 +109,6 @@ $ flk install NixOS --impure # use same host as above
|
||||
|
||||
<!-- TODO: find out why --impure is necesary / PRs welcome! -->
|
||||
|
||||
_Note: You _could_ install another machine than the one your iso was built for,
|
||||
but the iso doesn't carry all the necesary build artifacts so the target would
|
||||
start to build the missing parts on demand instead of substituting them from
|
||||
the iso itself._
|
||||
|
||||
[manual]: https://nixos.org/manual/nixos/stable/index.html#sec-installation-partitioning
|
||||
[mDNS]: https://en.wikipedia.org/wiki/Multicast_DNS
|
||||
[NDP]: https://en.wikipedia.org/wiki/Neighbor_Discovery_Protocol
|
||||
|
Loading…
Reference in New Issue
Block a user