[SOLVED] After Install Mint boots directly into windows 10 without showing GRUB Menu on ACER laptop

[naveenbp]

Hello All,
I have an issue immediately post install - unable to boot into Mint after install as i cannot see GRUB menu. I have installed Mint 20 on Acer laptop
I have checked that Windows is in UEFI prior to install of Mint. In addition, i have disabled secure boot & fast startup in windows prior to install.

As suggested in https://www.lifewire.com/change-the-efi ... gr-4028027 I have edited the boot order, but this did not help. Here is the output.

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mint@mint:~$ sudo efibootmgr
BootCurrent: 0003
Timeout: 0 seconds
BootOrder: 2002,0000,2001,2003
Boot0000* Windows Boot Manager
Boot0001* Unknown Device: 
Boot0002* Unknown Device: 
Boot0003* ATAPI CDROM: Slimtype DVD A  DA8A6SH
Boot0004* ubuntu
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot2003* EFI Network

I changed this with

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sudo efibootmgr -o 0004,0003,2002,2001,0000
BootCurrent: 0003
Timeout: 0 seconds
BootOrder: 0004,0003,2002,2001,0000
Boot0000* Windows Boot Manager
Boot0001* Unknown Device: 
Boot0002* Unknown Device: 
Boot0003* ATAPI CDROM: Slimtype DVD A  DA8A6SH
Boot0004* ubuntu
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot2003* EFI Network

As this did not work, I need help.

This is output for GRUB

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cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

This is output for inxi - Fxz

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System:
  Kernel: 5.4.0-58-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: Cinnamon 4.8.5 Distro: Linux Mint 20.1 Ulyssa 
  base: Ubuntu 20.04 focal 
Machine:
  Type: Laptop System: Acer product: Aspire E5-573 v: V3.72 serial: <filter> 
  Mobo: Acer model: ZORO_BH v: Type2 - A01 Board Version serial: <filter> 
  UEFI: Insyde v: 1.37 date: 02/16/2016 
Battery:
  ID-1: BAT1 charge: 18.9 Wh condition: 32.6/37.0 Wh (88%) 
  model: SANYO AL15A32 status: Discharging 
CPU:
  Topology: Dual Core model: Intel Core i3-5005U bits: 64 type: MT MCP 
  arch: Broadwell rev: 4 L2 cache: 3072 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 15964 
  Speed: 799 MHz min/max: 500/1900 MHz Core speeds (MHz): 1: 799 2: 799 
  3: 798 4: 798 
Graphics:
  Device-1: Intel HD Graphics 5500 vendor: Acer Incorporated ALI 
  driver: i915 v: kernel bus ID: 00:02.0 
  Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa 
  resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa Intel HD Graphics 5500 (BDW GT2) v: 4.6 Mesa 20.0.8 
  direct render: Yes 
Audio:
  Device-1: Intel Broadwell-U Audio vendor: Acer Incorporated ALI 
  driver: snd_hda_intel v: kernel bus ID: 00:03.0 
  Device-2: Intel Wildcat Point-LP High Definition Audio 
  vendor: Acer Incorporated ALI driver: snd_hda_intel v: kernel 
  bus ID: 00:1b.0 
  Sound Server: ALSA v: k5.4.0-58-generic 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Acer Incorporated ALI driver: r8169 v: kernel port: 3000 
  bus ID: 02:00.0 
  IF: enp2s0 state: down mac: <filter> 
  Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  vendor: Lite-On driver: ath10k_pci v: kernel port: 3000 bus ID: 03:00.0 
  IF: wlp3s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 931.51 GiB used: 146.0 MiB (0.0%) 
  ID-1: /dev/sda vendor: Western Digital model: WD10JPVX-22JC3T0 
  size: 931.51 GiB temp: 31 C 
Partition:
  ID-1: / size: 1.88 GiB used: 146.0 MiB (7.6%) fs: overlay source: ERR-102 
  ID-2: swap-1 size: 4.39 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda6 
Sensors:
  System Temperatures: cpu: 40.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 197 Uptime: 48m Memory: 3.76 GiB used: 1.57 GiB (41.8%) 
  Init: systemd runlevel: 5 Compilers: gcc: 9.3.0 Shell: bash v: 5.0.17 
  inxi: 3.0.38

Kindly guide me please. Thanks in Advance

[senjoz]

Some Acer notebooks need special trust settings in UEFI for boot files. See for instance https://ubuntuforums.org/showthread.php ... st13341757. Maybe your Aspire E5-573 needs these settings.

Regards, Jože

[naveenbp]

Hi senjoz, thanks for the reply, I tried out what you said and I got a GRUB Menu with no need to press F12 in case i need to go to windows. The menu shows it all. However, I encountered few (changes / problems) which I will enumerate below so that it helps others.
Please note my laptop is ACER E 15 [ACER E5-573-36RP]
PLEASE REFER TO PREVIOUS POST AND ALSO READ THIS BEFORE EXECUTING THIS.

1. I had disabled secure boot, now i had to enable it to do the changes as suggested & I am getting GRUB Menu with Secure boot ON

2. I could find only one HDD0, in this I could find the list <EFI>

3. When i clicked on ubuntu, I got this list (in this order):
<.>
<..>
grubx64.efi
shimx64.efi
mmx64.efi [i did not get MokManager.efi and i dont know what the first two symbols are for in this list]

4. I proceeded to rename as suggested; I added a prefix mintgrubx64efi, mintshimx64.efi and mintmmx64.efi

5. I exited and returned to boot page as suggested, here i moved these efi in the following boot priority order:
mintgrubx64efi
mintshimx64efi
mintmmx64.efi

I kept windows boot loader to the end in the boot priority order
I saved and exited [removed the admin password also as suggested]
I got an error message after restart: Signature not valid, first kernel has to be loaded

5. Then i changed this order to
mintshimx64efi
mintgrubx64efi
mintmmx64efi

Saved and exit
Voila on restart, everything was perfect - I got a GRUB menu with both choices ubuntu and windows - ubuntu at the top
This documentation is for anyone else with a similar issue on ACER laptop Aspire E15. Thanks a lot senjoz