console-setup: only run when a framebuffer exists (skip serial/headless)#25
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…dless) On a headless or serial-only boot (no GPU, hence no /dev/fb0) setupcon's setfont cannot work and spams 'setfont: ERROR ioctl(KDFONTOP): Invalid argument' repeatedly in the journal. Gate the console-setup.service drop-in on ConditionPathExists=/dev/fb0 so it is skipped cleanly there; a normal graphical boot has /dev/fb0 and is unaffected. (AI-Assisted.)
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On a headless or serial-only boot (no GPU, hence no
/dev/fb0)setupcon'ssetfontcannot work and spamssetfont: ERROR ioctl(KDFONTOP): Invalid argumentrepeatedly in the journal. This gates the existing console-setup.service drop-in onConditionPathExists=/dev/fb0, so it is skipped cleanly there; a normal graphical boot has/dev/fb0and is unaffected.Found via
systemcheck --leak-testsheadless in qemu. Not yet runtime-validated on a rebuilt image.AI-Assisted.