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Help! Installed on Win 8 and no grub on startup

Posted: Thu Aug 17, 2017 2:13 pm
by Palladini921
I installed Linux Mint 18.2 Cinnamon on a Windows 8 computer and on restart it goes right to Windows. I have disable secure boot in the Bios. I did before I installed Linux. I am at loss here on what can be done.

Re: Help! Installed on Win 8 and no grub on startup

Posted: Thu Aug 17, 2017 4:02 pm
by michael louwe
@ Palladini921, .......

For some guidance, please refer to .......
viewtopic.php?f=42&t=163126 (dual-booting UEFI computers)
https://sites.google.com/site/easylinux ... ct/windows
https://sites.google.com/site/easylinux ... nt-install
https://www.tecmint.com/install-linux-m ... uefi-mode/ (note step 17 & 18)
viewtopic.php?f=42&t=122276 (manual partitioning Tutorial)

Ensure that Secure Boot, Fast Boot and CSM are disabled in BIOS setup, Fast Startup is disabled in Win 10/8.1, the Live LM media(DVD or USB-stick) is booted in UEFI mode in BIOS setup and the "Device for boot loader installation" is the Windows EFI System Partition(= ESP = fat32/about 104MB) which is usually dev/sda1, or if unsuccessful select the whole disk, ie /sda.

To dual-boot, you only need to pre-shrink the Windows partition with the Windows Disk Management Tool or GParted if you intend to use the manual "Something else" install method.
....... No need to pre-shrink if using the automatic "install LM alongside Windows Boot Manager" method, which will be followed by the LM Installer auto-partitioning the disk and auto-installing the Linux Grub bootloader onto the Windows ESP. Only a root / and swap partition will be auto-created with a total default size of about 20GB. The user will be given the option to increase this default size by moving a slider on the colored Partition table, subject to the maximum available free space in the Windows partition.

P S - Certain OEM computers, eg Acer, Asus and HP, have a BIOS setting for "select an UEFI file as trusted for executing", .......
viewtopic.php?t=201836

Re: Help! Installed on Win 8 and no grub on startup

Posted: Thu Aug 17, 2017 5:10 pm
by Palladini921
At this Moment I am cleaning her windows OS out, ran Superantispyware and it found 7488 spyware things., so after I am done cleaning this out, a few more cleaners to run I will go in and shut those other things down and see how it works.
I thank you for the quick response.

Re: Help! Installed on Win 8 and no grub on startup

Posted: Thu Aug 17, 2017 7:00 pm
by Palladini921
I have made a Video, uploaded to Youtube of the Boot section of the BIOS on the Computer. It is a HP laptop, HP BIOS, in the video you can see what is disabled and such
Here is the Video - https://youtu.be/LWiG-UOCxh8

Would I be able to download Grub2 on the windows side and run it and see what happens?

Re: Help! Installed on Win 8 and no grub on startup

Posted: Thu Aug 17, 2017 9:36 pm
by syg00
Doesn't look like a valid Mint install completed successfully - you should have a "ubuntu" entry in that UEFI boot list. Did you get any failure messages during the Mint install ?.
Boot the Mint DVD in liveCD mode and open a terminal (think DOS/cmd session in Windows-speak).If you don't know how, do this:
- hit the "Windows" key and typeterminal
- click the button that returns
- run these commands and post the output (highlight with mouse and copy/paste using the menu at top). My comments in brackets, don't enter any of that, or the brackets () either.

Code: Select all

sudo lsblk -fl (look for vfat - should be sda1 or sda2 - use whichever - sda1 or sda2 in the next command))
sudo mount /dev/sda2 /mnt  (change to sda1 or whatever in need)
ls /mnt/EFI
ls /mnt/EFI/ubuntu  (that one may fail - that's ok, but let us know if it does.)
sudo apt-get install efibootmgr  (wait till it installs itself)
sudo efibootmgr
You need to connect to your network for the last 2 commands.

Re: Help! Installed on Win 8 and no grub on startup

Posted: Thu Aug 17, 2017 11:02 pm
by syg00
After all that, I went and checked a HP netbooky-thing we have. I get the same display as you. And Mint boots fine on this system. During power-on, when the screen goes blank, hit the F9 key - you should get a boot list, else your timing was out. Select Ubuntu from there. Run the last 2 commands from a terminal in the real Mint and post here.