`pmbootstrap qemu` show pass-through ctrl+c

pmbootstrap qemu runs qemu and gives me a terminal connected to a serial terminal inside the VM.

When I press Ctrl+c on this terminal, pmbootstrap exits, instead of passing this through to the serial terminal.

Reproduction steps

Set up a VM: https://wiki.postmarketos.org/wiki/Category:QEMU#Usage
pmbootstrap qemu --image-size=6G
On the terminal (which is not connected to the VM's serial port AFAIK), press Ctrl+c

pmbootstrap exits (SIGINT) and kills the VM along the way

The escape sequence should be sent to the VM.

Edited a few times for clarity.

Edited Nov 20, 2024 by Hugo Barrera

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