06cb8fbe61
vmspawn's positional arguments are extra kernel command line arguments
rather than a command to execute, so unlike nspawn or run it has nothing
to shield from the option parser: a kernel command line argument never
begins with a dash. Stopping at the first one only means an option that
follows one is silently taken for another kernel command line argument,
with no diagnostic:
systemd-vmspawn -i image.raw console=ttyS0 --set-credential=foo:bar
boots with "--set-credential=foo:bar" appended to the kernel command
line instead of setting a credential.
The stop was right when it was written. In 9de3cc1484, vmspawn's first
commit, the trailing arguments were appended to the QEMU command line
directly, so they really were options that had to reach QEMU unparsed.
4291f4461e turned them into extra kernel command line arguments passed
through SMBIOS three weeks later, and updated the man page to say so,
but left the "+" in the optstring behind; 4c778c51c0 and 5ff0ccaf8b then
carried it into the new option parser as
OPTION_PARSER_STOP_AT_FIRST_NONOPTION.
Use the default parser mode, which permutes options ahead of the
arguments; "--" still ends option parsing for an argument that does look
like an option. test-options gains the case this turns on, an option
after a positional argument in the default mode, beside the existing one
for the mode vmspawn no longer uses.
System and Service Manager
Details
Most documentation is available on systemd's website.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list, join our IRC channel #systemd on libera.chat or Matrix channel
Stable branches with backported patches are available in the stable repo.
We have a security bug bounty program sponsored by the Sovereign Tech Fund hosted on YesWeHack
Repositories with distribution packages built from git main are available on OBS, and also repositories with packages built from the latest stable release