Worse it looks at the actual contents of EFI/Boot/boot圆4.efi for this. This is weird given that it will only boot if EFI/Microsoft/Boot/bootmgfw.efi exists, but it still does this. The ACPI 'Device (SDHB) node for the MMC controller connected to the SDIO wifi module contains:ĭepending on what OS the BIOS thinks it is booting it renames one of these 2 to _HID. Some more details on the OS detection mis feature. Last but not least it has one more nasty 'feature', it detect if the OS being booted is Windows, Android or unknown and it updates the ACPI DSDT based in this!.You must first set a BIOS admin password before you can disable secure-boot (which is necessary to boot home-build kernels without doing your own signing).It will only boot from an USB disk connected to its micro-USB connector, not from the USB-A connector on the keyboard-dock.But it will actually boot EFI/Boot/boot圆4.efi ! (wait what? yes really).It considers its eMMC unbootable unless its ESP contains an EFI/Microsoft/Boot/bootmgfw.efi file.The EFI firmware of this is bad in a number of ways:
Recently I acquired an Acer Aspire Switch 10 E SW3-016, this device was the main reason for writing my blog post about the shim boot loop.
