Unable to boot operating system from internal disk with RW_LEGACY

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On my Chromebook, I booted into devmode, went into vt2, ran mrchromebox.tech’s RW legacy firmware script, then ran CRAP to resize the stateful partition. After that, I booted into a USB and tried to install openSUSE Leap to the internal disk. The bootloader picked up the USB, booted it, and the installation went fine, and succeeded….. and then I rebooted into my new OS…… nothing. The bootloader could not find any boot options except for the USB stick. Interesting. So I decided to try fedora 43, as that’s reccomended by the guide. Still nothing, the bootloader found nothing. I then tried formatting a custom partitioning scheme with a formatted 512M partition for EFI, a 1G for boot, and the rest for the system, then made the fedora installer use those mountpoints. Installation succeeded, bootloader showed no bootable devices, could only boot the USB. Keep in mind, all this time, chromeOS was still bootable (I exited devmode and that’s how I’m making this post.) Any ideas? My board is Nissa, my laptop is unkeyrolled on kv6 (unenrolled ofc, home Chromebook) and its an Acer Chromebook 512 spin.

Please ask for any more info!

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BOARD NAME!

also would be useful to know what type of storage the Fedora installer detects

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….I literally said my board was Nissa, like one line above that

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Screenshot 2026-02-07 9.27.42 AM
Screenshot 2026-02-07 9.27.42 AM494×565 115 KB
Oh and in case this is useful

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I mean, it was detecting and accessing and formatting the eMMC fine, and I have installed it on a different n4020 Chromebook with an eMMC (but that had full UEFI ROM, and that’s not what I’m troubleshooting)

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Nissa isn’t the board name, it’s the baseboard for all ADL-N Chromebooks (of which there are like 50).

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Ohhhhh okay my bad. The board name is CRAASK-HULX

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CRAASK doesn’t have eMMC detection issues with the Full ROM, which uses a slightly different/newer edk2 payload, but nothing should be different about the eMMC detection. Probably going to be easiest if I revert mine to stock and test vs trying to have you debug, but won’t have time for that anytime soon

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What would you recommend I do for the time being? Would buying an ultrafast micro SD or USB be a good idea?

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A USB attached SSD is going to give you the best performance