disabling secure boot [solved]

[sunil992]

i cant see grub menu after installation mint is the only installation i have and live boot doest show menu give a black screen ? its a lenovo g400s laptop and applying nvidia graphics give a black screen any experience user please help with these issues ?

Code: Select all

[code]
System:    Kernel: 5.4.0-88-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Xfce 4.16.0 
           tk: Gtk 3.24.20 wm: xfwm4 dm: LightDM Distro: Linux Mint 20.2 Uma 
           base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: LENOVO product: 20262 v: Lenovo G400s Touch serial: <filter> 
           Chassis: type: 10 v: Lenovo G400s Touch serial: <filter> 
           Mobo: LENOVO model: INVALID v: 31900004Std serial: <filter> UEFI: LENOVO 
           v: 7BCN38WW(V2.04) date: 12/10/2013 
Battery:   ID-1: BAT1 charge: 9.1 Wh condition: 9.1/37.5 Wh (24%) volts: 16.7/14.9 
           model: LENOVO PABAS0241231 serial: <filter> status: Full 
CPU:       Topology: Dual Core model: Intel Core i5-3230M bits: 64 type: MT MCP arch: Ivy Bridge 
           rev: 9 L2 cache: 3072 KiB 
           flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 20753 
           Speed: 3178 MHz min/max: 1200/3200 MHz Core speeds (MHz): 1: 3178 2: 3056 3: 2994 
           4: 2993 
Graphics:  Device-1: Intel 3rd Gen Core processor Graphics vendor: Lenovo driver: i915 v: kernel 
           bus ID: 00:02.0 chip ID: 8086:0166 
           Device-2: NVIDIA GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] 
           vendor: Lenovo driver: nouveau v: kernel bus ID: 01:00.0 chip ID: 10de:1140 
           Display: x11 server: X.Org 1.20.11 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1366x768~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2) v: 4.2 Mesa 21.0.3 
           compat-v: 3.0 direct render: Yes 
Audio:     Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Lenovo 
           driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:1e20 
           Sound Server: ALSA v: k5.4.0-88-generic 
Network:   Device-1: Qualcomm Atheros QCA8172 Fast Ethernet vendor: Lenovo driver: alx v: kernel 
           port: 2000 bus ID: 02:00.0 chip ID: 1969:10a0 
           IF: enp2s0 state: down mac: <filter> 
           Device-2: Intel Centrino Wireless-N 135 driver: iwlwifi v: kernel port: 2000 
           bus ID: 03:00.0 chip ID: 8086:0893 
           IF: wlp3s0 state: up mac: <filter> 
Drives:    Local Storage: total: 465.76 GiB used: 8.54 GiB (1.8%) 
           ID-1: /dev/sda vendor: Western Digital model: WD5000LPVT-24G33T1 size: 465.76 GiB 
           speed: 3.0 Gb/s serial: <filter> 
Partition: ID-1: / size: 410.60 GiB used: 8.53 GiB (2.1%) fs: ext4 dev: /dev/sda2 
USB:       Hub: 1-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 chip ID: 1d6b:0002 
           Hub: 1-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0 
           chip ID: 8087:0024 
           Device-1: 1-1.3:3 info: Intel type: Bluetooth driver: btusb rev: 2.0 chip ID: 8087:07da 
           Device-2: 1-1.4:4 info: Realtek RTS5129 Card Reader Controller type: <vendor specific> 
           driver: rtsx_usb,rtsx_usb_ms,rtsx_usb_sdmmc rev: 2.0 chip ID: 0bda:0129 
           Hub: 2-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 chip ID: 1d6b:0002 
           Hub: 2-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0 
           chip ID: 8087:0024 
           Hub: 3-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0 chip ID: 1d6b:0002 
           Device-3: 3-3:2 info: Elan Micro Touchscreen type: HID driver: hid-multitouch,usbhid 
           rev: 2.0 chip ID: 04f3:016d 
           Device-4: 3-4:3 info: Realtek Lenovo EasyCamera type: Video driver: uvcvideo rev: 2.0 
           chip ID: 0bda:5728 
           Hub: 4-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.0 chip ID: 1d6b:0003 
Sensors:   System Temperatures: cpu: 60.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http: //packages.linuxmint.com uma main upstream import backport
           2: deb http: //ubuntu-archive.mirrors.estointernet.in focal main restricted universe multiverse
           3: deb http: //ubuntu-archive.mirrors.estointernet.in focal-updates main restricted universe multiverse
           4: deb http: //ubuntu-archive.mirrors.estointernet.in focal-backports main restricted universe multiverse
           5: deb http: //security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb http: //archive.canonical.com/ubuntu/ focal partner
Info:      Processes: 190 Uptime: 9m Memory: 3.74 GiB used: 1.06 GiB (28.4%) Init: systemd v: 245 
           runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Client: Unknown python3.8 client inxi: 3.0.38 

[/code]

in lenovo laptop to disable the secure boot status in pic i have to rest the setup mode which changes secure boot mode to custom as shown in the first pic .
after doing that when i try to boot live to flash drive i get a blank screen i had to install mint enabling the secure boot mode but then i cant install the nvidia driver when i disable it again in bios i cant boot live in flash drive to reinstall again as the nvidia driver is not working and in my ufi list there shows 2 ubuntu installation for some reasons

[Grayfox]

To disable secure boot you will need to enter the UEFI.

Tap the F1 key during the POST Screen(Lenovo Screen)
Navigate to the Security Tab by using the right arrow key
Once Security Tab is selected press the down arrow key until you've highlighted Secure Boot then hit Enter
You will now be in a new window, select Secure Boot" again and hit enter
Now press the down key to select disable, hit enter
Press F10 to "Save and Exit"
Secure Boot should now be disabled.

[sunil992]

i have disabled it but why its i am getting a black screen on live boot ?

[rene]

You first of all don't need to disable secure boot to install Mint or Ubuntu (although you should of course feel free to). When you boot the Live system you should be getting an initial menu from where you can boot in "compatibility mode". Post-install, see https://linuxmint.com/rel_uma_cinnamon.php, "Solving freezes during the boot sequence".

[sunil992]

i was trying to install the nvidia driver so i had to disable it and its still not working gives me a black screen only and when i am trying to boot form live boot mode from flash drive i am getting a blank screen i dont know why but i think i am doing something wrong in bios setting or installation

[rene]

It's hard to understand what you are saying. If you haven't installed Linux mint due to not being able to boot the Live/Installer system then where/how are you "trying to install the nvidia driver" and/or what/where do you aim to "disable" on what?

If you boot the Live system you should be getting that mentioned "Compatibility Mode" choice. Do you? If yes, use it and use the post-install advise as from the linked release notes. If not it's likely your downloaded ISO and/or DVD/USB is corrupt.

[sunil992]

i have installed mint but when i try to live boot mint again i dont see the grub menu of live boot instead i get a blank screen ? sorry if i havent been able to explain it clearly i am trying my best

[Grayfox]

When you installed Linux, did you do anything with the bootloader?
What kind of partitioning scheme did you set up?
Did you assign some partitions or did you tell Mint to do it automatically?

[sunil992]

When you installed Linux, did you do anything with the bootloader?
What kind of partitioning scheme did you set up?
Did you assign some partitions or did you tell Mint to do it automatically?

i edited the opening post please check i had previously windows 8 and i did the partition myself creating a efi of 560 mb the root of 449gb and installing mint on root

[rene]

i have installed mint but when i try to live boot mint again i dont see the grub menu of live boot instead i get a blank screen ?

"The Grub menu of live boot" is the thing that confuses; "a live boot" would in the context be to say a boot into the Live system, i.e., a boot again into the Live-system USB/DVD --- but I take it you mean that on a boot into the installed system after installation you don't get the Grub menu where you could add that "nomodeset" parameter as per the linked instructions from the release notes.

Yes, you only get the Grub menu automatically if dual-booting; if you have a single Linux system you need to tap Esc at the point where the boot starts loading from disk (or hold down Left-Shift on older legacy systems or maybe when booting in CSM mode --- never mind). Rereading it seems the release notes should in fact say that yet do not.

[sunil992]

I meant that the nvidia drivier was messing up again so I wanted to reinstall mint using the bootable flash drive when I try to run linux from flash drive it doesn't show any embu to install linux or to boot into compatibility mode like it always do when you make a bootable flash drive, it gives a black screen

[sunil992]

And I don't understand how the link help I am using xfce

[rene]

Cinnamon or Xfce doesn't matter at that level. But OK then, you are saying that you can't boot the Live system, not even in compatibility mode, since you get an immediate black screen, not that menu from which you can pick Compatibility Mode.

That was the first thing I asked and advised on: if you don't even get as far as that menu there's little opportunity for anything other than a bad download or "burn". From an existing Linux Mint system you can use the standard Mint USB Image Writer to create the USB; is that what you did?

In any case note that I jumped in basically only to point out that your subject line is a red herring; the standard Mint Live system boots fine both with secure boot enabled and disabled. Something else is wrong.

[sunil992]

Thank you for the help tho I have previously installed mint on other system it went smooth somenhoe I am messing up the urfi system and on top of that nvidia driver doesn't work it makes my screen goes blank . I will try Google or use it as it is. Ia m running out of patience of installing and re installing os

[Grayfox]

When the laptop is at the POST screen(lenovo screen).
Tap F12.
It will list detected EFI boot loaders.
The UEFI still may be set to boot to windows rather than Linux.

[sunil992]

When the laptop is at the POST screen(lenovo screen).
Tap F12.
It will list detected EFI boot loaders.
The UEFI still may be set to boot to windows rather than Linux.

It's showing the same data as above I posted in the op post of the boot manager

[mikaelrask]

Hey for NVIDIA open up the driver manger in linux mint and install the latest version of NVIDIA should be 470 reboot the system. for secure boot it can sometimes be need to enter a password during boot after disable it in the bios, its usually set in the bios when changing settings in the bios (master password). On some bios.

[sunil992]

it was showing 340 tho but its solved now but the scrolling looks choppy