# GRUB2::booting notes

Starting from Linux Kernel 5.0, it is now possible to enable FrameBuffer.\
\
earlycon=efifb,mem\
\
grub\_cfg\
set grub\_mm\_debug=1\
insmod efi\_gop\
insmod efi\_uga\
\
More here - \
<https://forum.xda-developers.com/windows-8-rt/rt-development/wip-secure-boot-linux-surface-rt-t3653848/page13>

## EFISTUB

Booting for EFISTUB kernel currently fails. \
ERROR: Unable to allocate memory for uncompressed kernel\
\
&#x20;My thoughts are its not loading in the right memory area.  \
?TBD - We can try hard code the kernel extraction area.\
\
Other possibilities are that its not liking the signing?  although it should error out correctly if so.

![](https://569825932-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MJLRvYIRoqQ8RpdJUy4%2F-MJMR5OyzG2fWXokIgyx%2F-MJMRZRFRsCVRteL1JVU%2Fimage.png?alt=media\&token=47332567-1cfa-4d90-b123-c762cdb5cda9)
