Commit Graph

2 Commits

Author SHA1 Message Date
Colin Walters
96c2d8998d daemon: Rewrite some core initramfs-overlay logic in Rust
We had a memory safety/UB bug in the C code; let's use
that as a good motivation to rewrite in Rust.  It's a nice
self contained bit.
2020-11-02 21:27:35 +01:00
Jonathan Lebon
4da10dc11e Add new ex initramfs-etc command
This command allows users to cheaply inject configuration files in the
initramfs stage without having to regenerate the whole initramfs (or
even a new OSTree commit). This will be useful for configuring services
involved in bringing up the root block device.

```
$ echo 'hello world' > /etc/foobar
$ rpm-ostree ex initramfs-etc --track /etc/foobar
Staging deployment... done
Run "systemctl reboot" to start a reboot
$ rpm-ostree status
State: idle
Deployments:
  ostree://fedora:fedora/x86_64/coreos/testing-devel
                   Version: 32.20200716.dev.1 (2020-07-16T02:47:29Z)
                    Commit: 9a817d75bef81b955179be6e602d1e6ae350645b6323231a62ba2ee6e5b9644b
              GPGSignature: (unsigned)
              InitramfsEtc: /etc/foobar

● ostree://fedora:fedora/x86_64/coreos/testing-devel
                   Version: 32.20200716.dev.1 (2020-07-16T02:47:29Z)
                    Commit: 9a817d75bef81b955179be6e602d1e6ae350645b6323231a62ba2ee6e5b9644b
              GPGSignature: (unsigned)
$ reboot
(boot into rd.break)
sh-5.0# cat /etc/foobar
hello world
```

See the libostree side of this at:
https://github.com/ostreedev/ostree/pull/2155

Lots more discussions in:
https://github.com/coreos/fedora-coreos-tracker/issues/94

Closes: #1930
2020-10-30 00:48:54 +01:00