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docs: suggest to erase /var/lib/systemd/credential.secret when preparing golden images

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Lennart Poettering 2022-04-22 15:00:48 +02:00 committed by Luca Boccassi
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docs/BUILDING_IMAGES.md
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@ -53,6 +53,15 @@ boot. For that it's essential to:
[`/etc/machine-info`](https://www.freedesktop.org/software/systemd/man/machine-info.html)
which carry additional identifying information about the OS image.
5. Remove `/var/lib/systemd/credential.secret` which is used for protecting
service credentials, see
[`systemd.exec(5)`](https://www.freedesktop.org/software/systemd/man/systemd.exec.html#Credentials)
and
[`systemd-creds(1)`](https://www.freedesktop.org/software/systemd/man/systemd-creds.html)
for details. Note that by removing this file access to previously encrypted
credentials from this image is lost. The file is automatically generated if
a new credential is encrypted and the file does not exist yet.
## Boot Menu Entry Identifiers
The