Re-installed P7 (after my BIOS update clanger) last night and experienced a few woes:
failed install: 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot
After a few choice...wtf...exclaimations..! I went old school and installed in Legacy mode, currently feeling decidedly anti M$***e and becoming allegetic to their B$.
The fresh install has taken 15 seconds of the "systemd-analyze time", once all the usual tricks were applied. Bonus...!
Startup finished in 2.575s (kernel) + 10.767s (userspace) = 13.342s
While installing extra software via cli, noticed this warning: "W Possible missing firmware for module i915_bpo when updating initramfs"
Had a root about the web and found the following sites:
2. Q: I am seeing the following error message, what do they mean and what should I do in response?
W:Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1.bin for module i915
A: This warning can be safely ignored. This list contains all the firmware for all platforms even if you are running in a non-supported platform.
However, before installing the missing firmware, use the table above to verify whether your platform is even supported.
For example, for a Skylake platform look for the 'skl' product code in the firmware name, like this: skl_guc_ver1.bin.
The intel-microcode in Synaptics is a 2015 model and I have the newer Intel Core i7-6700 & Intel Sky Lake Integrated Graphics.
Currently the computer boots up, graphics acceptable, no tears, video playback is nice and clean, ditto with sound, with no real concerns apart the slower than expected boot up time.
It would seem my worries were groundless, the learning curve continues, lol...!