trisquel grub makes the system unbootable

Project:Trisquel
Version:6.0
Component:Kernel/drivers
Category:bug report
Priority:normal
Assigned:Unassigned
Status:active
Description

i installed windows for gaming and with the debian bootloader everything works fine, but when i install trisquel with its bootloader, i get errors for windows, debian and trisquel.

i use ahci mode.
the grub loader seems to be the same like debians.
bootrepair doesnt work.