mint@mint:~$ sudo efibootmgr
BootCurrent: 0002
Timeout: 0 seconds
No BootOrder is set; firmware will attempt recovery
Boot0000* Network Adapter (IPv4 UEFI)
Boot0001* Network Adapter (IPv6 UEFI)
Boot0002* USB Hard Drive (UEFI) - SanDisk (SanDisk)
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot3001* Internal Hard Disk or Solid State Disk

Even after clean install in my internal HDD EFI fails to load and cant see any installed OS. Can anyone help me out?
Thank you

What is your system? I had a asus a while back that would do this, efibootmgr would not work with the system bios, I would have to go into bios by using esc/f-key to get into system bios settings and change the boot order.
Open a terminal and post the output of

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Sir, since i had BIOS and because of that my EFI partition was not bootable i suppose,so just switched the EFI partition to BIOS /boot in mint-installation. The system booted though, after running sudo apt update and sudo apt upgrade the system now is stuck in "log in" , when i enter password and error prompts ": unable to launch 'cinnamon-session-cinnamon' X session --- 'cinnamon-session-cinnamon' not found; falling back to default session."
Back to log in session
Can't find way to GRUB to force boot with vmlinuz, initrid.img ...
Or is there any other way??

to get the grub menu hold down the shift key when you first boot, and should be able to select different kernel.
to get to a terminal at the grub menu press e for edit and add text to end of line that begins with Linux or after booting into system alt-ctrl-f1 should give you a terminal.

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Are you trying to boot from a USB device?

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Booted into system and tried login, then ctrl+alt+f6 got my terminal.
Yes sir i booted through my usb stick and installed Linux-mint 19.

Attached Thumbnails

   

boot into the mint terminal,

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Thank you Sir, was thinking of resetting my userid and repos.but running install mint-meta-cinnamon worked.
however, i got this error:

Unpacking ubuntu-minimal (1.417.3) over (1.417.2) ...
Setting up grub-efi-amd64-signed (1.93.14+2.02-2ubuntu8.13) ...
Installing for x86_64-efi platform.
Could not prepare Boot variable: No space left on device
grub-install: error: efibootmgr failed to register the boot entry: Input/output error.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
Setting up ubuntu-minimal (1.417.3) ...
dpkg: dependency problems prevent configuration of shim-signed:
shim-signed depends on grub-efi-amd64-signed; however:
Package grub-efi-amd64-signed is not configured yet.

dpkg: error processing package shim-signed (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
grub-efi-amd64-signed
shim-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)

Quite annoying since everything seems well but such error is inevitable. Any suggestion or two?

This is your problem, what is the output of df

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lones0ner@lonest0ner:~$ df
Filesystem 1K-blocks Used Available Use% Mounted on
udev 1930852 0 1930852 0% /dev
tmpfs 398900 1376 397524 1% /run
/dev/sda3 48951972 13492048 32943548 30% /
tmpfs 1994484 57596 1936888 3% /dev/shm
tmpfs 5120 4 5116 1% /run/lock
tmpfs 1994484 0 1994484 0% /sys/fs/cgroup
/dev/sda1 4989400 6232 4983168 1% /boot/efi
/dev/sda4 900339432 267804 854267160 1% /home
tmpfs 398896 24 398872 1% /run/user/1000

such is the output, guess there is plenty of space
is my /dev/sda2 fragmented into these tmpfs?? cause i dont see the partition.

/dev/sda2 is swap partition

that may have something to do with your bios settings on your system.

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In your Bios, make sure Secure Boot is disabled.

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secure boot, legacy boot were set to disable before the installation.
Well everything seems to run smoothly for now , just:grub-efi-amd64-signed
shim-signed
are not bring updated.

lones0ner@lonest0ner:~$mokutil --sb-state
SecureBoot disabled
Platform is in Setup Mode