boot Mint + Windows 10. I wanted to have Ubuntu instead of Mint. The computer is a HP-EliteBook-Folio-1040-G1 - so new and it seems to have UEFI, not sure though.
I started the Ubuntu installation. Mint was installed in 1 partition, no swap, etc. There were 3 partitions. 2 ntfs, and 1 ext4.
I removed the ext4 partition, selected free space, create a new mountpoint / and started the installation.
The installation could not be started because of the error No EFI System Partition was found.
So I create also a swap partition and a 700MB EFI partition ot of that free spaced from the old Mint. The NTFS partitions are intact.
Now the installation was good.
Problem: after restarting the PC it is running immediately Ubuntu. Grub is not appearing.
I would like to have the GRUB loader appear and give the possibility to choose Ubuntu or Windows.
This is the situation:
sudo fsblk
[sudo] password for username:
sudo: fsblk: command not found
sudo df -h
Filesystem Size Used Avail Use% Mounted on
udev 1,9G 0 1,9G 0% /dev
tmpfs 384M 1,8M 382M 1% /run
/dev/sda6 29G 6,2G 21G 23% /
tmpfs 1,9G 25M 1,9G 2% /dev/shm
tmpfs 5,0M 4,0K 5,0M 1% /run/lock
tmpfs 1,9G 0 1,9G 0% /sys/fs/cgroup
/dev/loop1 63M 63M 0 100% /snap/gtk-common-themes/1506
/dev/loop0 256M 256M 0 100% /snap/gnome-3-34-1804/36
/dev/loop2 50M 50M 0 100% /snap/snap-store/467
/dev/loop3 30M 30M 0 100% /snap/snapd/8542
/dev/loop4 55M 55M 0 100% /snap/core18/1880
/dev/sda3 667M 7,8M 659M 2% /boot/efi
tmpfs 384M 68K 384M 1% /run/user/1000
sudo cat /etc/default/grub
[sudo] password for sodhreeqmonique:
# 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
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
The ntfs partitions are in sda1 and sda2
EDIT:
To answer the comments:
If I press Esc during boot this screen appears:

When I select F9, the following appears:

When I click Os boot manager I get:

EDIT 2 I also tried the following:
Both these two choices start Ubuntu, but not Grub appears
And should it help, here is the bios:

Can anybody please help?





