Your Secure boot is set to Custom, Erase all secure boot settings and Restore Secure Boot to Factory Default to have this option
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I don't think it is possible without a reinstall and use the something else option. If you have a minimum of 8 Gb of RAM and your hard drive is an SSD then you won't need a swap area.
As you only have 100 Gb of space available, you only need to create 1 primary partition, formatted to Ext4 and labelled '/' without the quote marks and name it 'root'.
What I am not sure to advise on is where to put GRUB on such a setup.
Additionally, be advided not to write files from Zorin to the Windows partition as they can be corrupted. If you had a separate data partition such as D:\ then you can write to and from that.
Do I restart after I "Erase all secure boot settings" or can I both "Erase these settings" and then return to "Factory defaults" before I restart?
I changed Secure Boot from Custom to Standard but still have the same two options. There is no 'EFI trusted file' option.
is it in the Boot tab rather than the Security tab?
and if UEFI is not set maybe the option is not there ?
No, only the list of boot devices.
The option does not appear to be available at all.
My Boot Mode has always been on UEFI. I think that there are differences between ACER BIOS options. Mine appears to have no EFI trusted file option.
We may be barking up the wrong tree at this point and getting distracted.
What you have shown so far:
- The Shim \EFI\ubuntu\shimx64.efi exists
- It is in the proper location and partition
- It is visible to the system
- You reset Secure boot - and you have tried with it disabled and enabled.
Everything above says that Zorin OS is installed and bootable. But clearly you must be experiencing an inability to boot...
At this point: Can you clarify what the Current Symptom is?
If you look at his GParted screenshot / is 'missing'. It needs a fresh install using 'something else'.
Thank and other Forum members you very much for the help you are giving me.I appreciate it a great deal as I know very little about Linux systems (or indeed about any computer systems). I have learnt a lot already.
The main symptom now is that on booting only Windows boots and Zorin does not.
To use Zorin from the USB I have to add "acpi=off" each time to the launch commands which is no problem at all.
"As you only have 100 Gb of space available, you only need to create 1 primary partition, formatted to Ext4 and labelled '/' without the quote marks and name it 'root'."
I am not sure where and how I make these changes.
Also, I tried to mount the two partitions (Zorin and EFI) but without success.
I have just spent ten minutes scrolling up and down this thread, looking at the efibootmgr output and your Boot Tab in EFI settings.
We see that you clearly and definitely have installed EFI entries for Zorin OS. They are there.
In your boot order, these entries are entirely absent.
I also looked closely and noticed something else:
Acer InsydeH20 Setup Utility.
Huh Boy. Well, thar's yer problem.
This has come up a few times on this forum. Some manufacturers include firmware that Explicitly Favors Windows OS and blocks any GnuLinux entries.
If you change the boot order to the GnuLinux (As you did), the firmware recognizes, it, refuses, reverts it to Windows as First Order Priority - and boots Windows.
This is common enough that Artyom and Kyrill included a guide in the Zorin Installation Help section for this exact issue:
Which, as you browse that guide you see is also what we tried to do in this thread.
Except...
Your EFI settings do not allow you to set an EFI file as trusted. It blocks that, too.
Where it gets interesting, though - it does this through non-volatile RAM (nvRAM) entries.
We usually see it as "nvRAM locked."
To boot - the user often must Bypass nvRAM.
This is done by booting the USB stick / LiveUSB
Mounting and accessing the hard drive... Then copying EFI/ubuntu/shimx64.efi into the directory EFI/Boot/. Then rename that copied file to bootx64.efi
The automatic fallback for nvRAM failure is \EFI\Boot\bootx64.efi so you are creating that entry as your Zorin OS entry.
Zorin OS Grub will give the option of booting into Windows OS.
EDIT: Oh, one more thing I see in your screenshots: Despite the valid EFI entries - your firmware is listing them as "Unknown" - that also tells me that nvRAM is locked and it is rejecting the valid entries.
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I attempted to mount my hard drive and received the following responses. As I said before I am a novice at Linux and had to look up Google to find out how to do this.
I obviously did something wrong - or was is the laptop?
From your screenshot, it appears that you need to mount the actual drive ID. THe instructions may have put a placeholder like "mydrive" - which the user must replace with the drive ID.
To find the drive ID, we use the command
lsblk
(which is short for LiSt BlocK)
Don't let yourself feel like you are wandering alone. This forum exists for you to take advantage of.
At a moment of hesitation, or seeking confirmation - make use of us here to stop and check, ask or clarify - Learning Alone Is Ten Times Harder.
Once you have the output for lsblk, we can then look over the mount commands.
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The sdb entries are your external drives.
So, this looks to me like sda3 is your Zorin OS partition. I am basing this on a screenshot - you are the End User - Can you confirm that 832gig size matches your Zorin OS Partition size?
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