Special characters in kernel command line arguments

[battamatt]

We would like to set a username and password in a proxy url that is passed as kernel command line argument. We tried to use a general bash approach to handle special characters like this:

talos.environment='http_proxy=\"http://user!@#$:pa:ss\[email protected]:8080\"'

This failed and the proxy was not enabled for the auth device flow procedure. What would be a safe way to handle this?

[smira]

Kernel command line doesn't need any special escape rules iirc.

[rothgar]

Have you tried quoting the value without escape characters?

talos.environment='http_proxy=http://user!@#$:pa:ss\[email protected]:8080'

Are you using any templating to create your installation media? If you have a template engine or process the files through bash there may be escaping required.

It would also help to know what version of Talos you're using and if you're using a system with UEFI or legacy BIOS because GRUB and systemd-boot may treat these arguments differently (although I don't think they do).