bootloader/grub2: Don't do anything if we have static configs #3205
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This builds on top of coreos/bootupd@fa9924e (But in a very hacky way because we don't currently link to a JSON library) Basically, bootupd supports injecting static configs, and this is the currently least hacky way for us to detect this and understand that we shouldn't try to run `grub2-mkconfig`. A further patch I'd like to do here is also change the probing logic to gracefully no-op if `grub2-mkconfig` doesn't exist, but that has a bit more risk and involvement.
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This builds on top of coreos/bootupd@fa9924e (But in a very hacky way because we don't currently link to a JSON library)
Basically, bootupd supports injecting static configs, and this is the currently least hacky way for us to detect this and understand that we shouldn't try to run
grub2-mkconfig.A further patch I'd like to do here is also change the probing logic to gracefully no-op if
grub2-mkconfigdoesn't exist, but that has a bit more risk and involvement.