[ SOLVED ] Install Mint 18.3 on new HP ProBook and no boot at all

[Chriske]

Hi,
Any ideas how to solve this.
Installing Mint went very smooth very fast. (Was a empty disk - I removed the Win10 disk)
When booting that laptop the only message I get is :

Selected boot image did not authenticate.
Please press enter to attempt boot to next device.

When I enter Bios I see that Linux is recognised, (in one of the BIOS screens I read 'Ubuntu')

Thanks in advance
Chris

[Laurent85]

Did you try to boot through the Boot menu ? Can't remember the function key to use at startup, Esc or Fn?

[Chriske]

Nope, there's no bootmenu at all just that message on a white screen
There's no dual boot either, just Mint 18.3 on that HD.

[Laurent85]

Did you try the Esc or F9 keys, press repeatedly each at startup.

[Chriske]

yep tried it and I get a menu choises, one of them is marked UEFI - UBUNTU. When hitting that it shows me again that message....

[Laurent85]

Check Secure Boot is disabled in the bios settings.

[Chriske]

In boot options SATA0 is first in line to boot

[Laurent85]

The device boot order is not the problem here. What about the Secure Boot setting, any option in the bios related to Secure Boot ?

[Chriske]

Check Secure Boot is disabled in the bios settings.

For some reason that setting can't be saved, never had this before.

[Laurent85]

An alternative would be to disable UEFI, the computer would boot in Legacy mode by default and reinstall in that mode. Secure Boot is an UEFI feature.

[Chriske]

I already did disabled UEFI to no avail

[Laurent85]

I already did disabled UEFI to no avail

Did you install LM with UEFI disabled in the first place ?

[Chriske]

No I didn't change a thing installing LM.
All my other HP's got installed without any problems.

[Laurent85]

Some HP computers have an UEFI that can't boot Ubuntu/LM by default.

You may reload the default bios settings > save > restart > re-enter bios settings and check you can disable Secure Boot > save > re-try the boot menu.

Since LM is the only OS on your computer and if the above does not work I suggest to disable UEFI and reinstall in Legacy mode.

[Chriske]

just started re-installing....

[Chriske]

Stil can't disable 'Secure boot' in BIOS.
Added BIOS password(found how to), still not able to disable SecureBoot. and again removed BIOS password, still nothing

[Chriske]

To be clear I can change that setting but after reboot nothing has changed..

[Laurent85]

Why not reinstalling in Legacy mode ? Your bios settings doesn't allow Legacy boot only, UEFI can't be disabled ?

[Chriske]

Will continue tomorrow, thanks...

[Chriske]

Laptop is back in the shop, technicians did not know how to handle this problem.
They contacted HP to ask how to disable 'Secure boot'.