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Debug your stage-1 systemd with GDB and the NixOS test framework

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 Malka, Julien Lahfa, Ryan Heckemann, Linus

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Debug your stage-1 systemd with GDB and the NixOS test framework
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798
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CC Attribution 2.0 Belgium:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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GDB is an amazing tool to debug ELF programs, but some of them are more challenging to debug than others. Systemd can be used as an implementation of the initrd, and in that case is run as PID 1 even before your system is finished booting. This talk will describe the process of debugging a crashing systemd in initrd using gdbserver running as the init script, gdb and the NixOS test framework.