Cannot boot up Gallium OS without going through bios

[BestWaifuAround]

When you boot up your Chromebook, it starts on the developer mode and you have to go through bios, is there anyway to fix it where it boots up on GalliumOS?

[goslackware]

you can try with UEFI (Full Rom), instead of RW_Legacy, which I believe will fix this. I believe the steps are:

• back up your important documents to somewhere else
• disable your write protect screw
• use https://mrchromebox.tech/#fwscript script to switch to "UEFI (Full Rom)": https://mrchromebox.tech/#bootmodes then reinstall Gallium OS. (The MrChromeBox firmware script will prompt you to backup your bios and settings, which is recommended if you need to go back to RW_Legacy (which might be needed if you ever want to go back to Chrome OS, or if you have UEFI issues). It's only 8MB.)

[crystalcommunication]

You cannot remove the developer mode screen or the requirement to press Ctrl+L to get into Linux without flashing custom firmware or changing GBB flags, both of which require removing the hardware write protection. The comment above describes the custom firmware method, flashing GBB flags can also be accomplished with MrChromebox's firmware script (https://mrchromebox.tech/#fwscript). The method for disabling the write protect varies from model to model. For older models that have a physical screw or jumper, you can find instructions for disassembling the device and removing the screw by doing an internet search for your model. If you have a more recent model with a CR50 chip, you'll need a special USB cable to disable it, information about that process is available here: https://wiki.mrchromebox.tech/Firmware_Write_Protect#Disabling_WP_on_CR50_Devices_via_CCD

[espoelstra]

You can set sudo crossystem dev_default_boot=legacy to go directly to Linux, but if your grub requires you to press a button instead of just waiting for a timeout that is part of your grub config.