yocto-public/5-troubleshooting/boot.md

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# Boot issues
## Not bootable
The flashed image must be built using [wic](../3-buildtest/wic.md). You should not flash images that are in `$POKY/build/tmp/deploy/images`.
This can also be due to a mis configured bootloader.
## Nothing on screen (happens randomly)
It is caused by the kernel boot command line options.
In the WKS file used to generate the final image, you must give the option `vga=current` (instead of `vga=0x318` or anything else).