[SOLVED] PC doesn't boot after installation

[DRickraft]

I installed Linux Mint on dual boot alongside Windows 7 by following a tutorial I found on YouTube... After the installation I rebooted as it said and now I can't get past the "This is not a bootable disk..." screen.

My laptop is an ASUS K50IN, found nothing about UEFI on its BIOS, it's really empty with literally 4 boot options.

Can't even get back to Win 7, did I somehow break my PC?

Thanks

[ricardogroetaers]

My laptop is an ASUS K50IN, .....

- Boot from the installation media
- Post a picture of gparted showing the laptop hard drive.
. don't forget to click on the "view" menu (from Gparted) and enable "show device info".
. The contents of all columns in Gparted should be visible.
- Optionally, post the output of the command:
sudo parted -l
- Manuals for your machine (in several languages):
https://www.asus.com/br/supportonly/k50 ... sk_manual/

Translated with www.DeepL.com/Translator (free version)

[DRickraft]

Thanks for the help, I'll try those when I get home.
I presume you're telling me to install GPARTER on the bootable USB flash, right?

I'm still learning, sorry

[AndyMH]

gparted is on your installation stick, no need to install. It is the standard linux partition editor. This is what my system drive looks like:

If you have more than one drive in the system, the drive selector is top right.

To upload a screenshot to the forum - Alt + PrtScn will take a screenshot of the active window. You will get a pop-up asking where to save it, the default is in Pictures. To upload it to the forum, below the reply window is an attachments tab:

Click on the Add files button, you will get a dialogue asking for the file to upload, when it is uploaded you get the place inline button, click that and it will insert the code for the image at your cursor in the reply window. Check it has done what you want with the preview button.

In addition to a gparted screenshot, open a terminal post the output from efibootmgr, this tells us how your computer is booting (legacy or UEFI mode) and the output from inxi -Fxxxrz, this gives us information about your system. This shows you how to post terminal output in the post so that it is more readable:
viewtopic.php?p=2119362&hilit=terminal#p2119362

[DRickraft]

Thanks again for helping, added the screenshot of GParted on main post and here's the output:
Also, forgot to say that I installed Mint on a 50GB unallocated partition, I found some BIOS updates for my motherboard (I've never installed any before), but I'm not sure if they would damage the pc even worse.

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mint@mint:~$ efibootmgr
EFI variables are not supported on this system.

mint@mint:~$ inxi -Fxxxrz
System:
  Kernel: 5.15.0-56-generic x86_64 bits: 64 compiler: gcc v: 11.3.0
    Desktop: Cinnamon 5.6.5 tk: GTK 3.24.33 wm: muffin vt: 7 dm: LightDM 1.30.0
    Distro: Linux Mint 21.1 Vera base: Ubuntu 22.04 jammy
Machine:
  Type: Laptop System: ASUSTeK product: K50IN v: 1.0
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: ASUSTeK model: K50IN v: 1.0 serial: <superuser required>
    BIOS: American Megatrends v: 218 date: 09/21/2009
CPU:
  Info: dual core model: Pentium T4300 bits: 64 type: MCP smt: <unsupported>
    arch: Core Yorkfield rev: A cache: L1: 128 KiB L2: 1024 KiB
  Speed (MHz): avg: 1905 high: 2032 min/max: 1200/2100 cores: 1: 1779
    2: 2032 bogomips: 8399
  Flags: ht lm nx pae sse sse2 sse3 ssse3
Graphics:
  Device-1: NVIDIA C79 [GeForce G102M] vendor: ASUSTeK driver: nouveau
    v: kernel ports: active: LVDS-1 empty: VGA-1 bus-ID: 02:00.0
    chip-ID: 10de:0873 class-ID: 0300
  Device-2: Chicony 2.0M UVC Webcam / CNF7129 type: USB driver: uvcvideo
    bus-ID: 1-5:4 chip-ID: 04f2:b071 class-ID: 0e02 serial: <filter>
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: modesetting
    unloaded: fbdev,vesa gpu: nouveau display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.2x8.0")
    s-diag: 414mm (16.3")
  Monitor-1: LVDS-1 model: LG res: 1366x768 hz: 60 dpi: 101
    size: 344x194mm (13.5x7.6") diag: 395mm (15.5") modes: max: 1366x768
    min: 640x350
  OpenGL: renderer: NVAC v: 3.3 Mesa 22.0.5 direct render: Yes
Audio:
  Device-1: NVIDIA MCP79 High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel bus-ID: 00:08.0 chip-ID: 10de:0ac0
    class-ID: 0403
  Sound Server-1: ALSA v: k5.15.0-56-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: ASUSTeK U6V/U31J laptop driver: r8169 v: kernel pcie:
    speed: 2.5 GT/s lanes: 1 port: e800 bus-ID: 03:00.0 chip-ID: 10ec:8168
    class-ID: 0200
  IF: enp3s0 state: down mac: <filter>
  Device-2: Qualcomm Atheros AR9285 Wireless Network Adapter
    vendor: AzureWave AW-NE785 / AW-NE785H 802.11bgn driver: ath9k v: kernel
    pcie: speed: 2.5 GT/s lanes: 1 bus-ID: 04:00.0 chip-ID: 168c:002b
    class-ID: 0280
  IF: wlp4s0 state: up mac: <filter>
Drives:
  Local Storage: total: 312.41 GiB used: 2.3 MiB (0.0%)
  ID-1: /dev/sda vendor: Hitachi model: HTS543232L9A300 size: 298.09 GiB
    speed: 3.0 Gb/s type: HDD rpm: 5400 serial: <filter> rev: C40C scheme: MBR
  ID-2: /dev/sdb type: USB vendor: SanDisk model: Ultra USB 3.0
    size: 14.32 GiB speed: 3.0 Gb/s type: N/A serial: <filter> rev: 1.00
    scheme: GPT
Partition:
  ID-1: / size: 1.92 GiB used: 130.5 MiB (6.7%) fs: overlay source: ERR-102
  ID-2: /var/log size: 11.54 GiB used: 2.3 MiB (0.0%) fs: ext4
    dev: /dev/sdb3
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 65.0 C mobo: N/A gpu: nouveau temp: 67.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: apt: 2087
  Active apt repos in: /etc/apt/sources.list
    1: deb cdrom:[Linux Mint 21.1 _Vera_ - Release amd64 20221217]/ jammy main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http://packages.linuxmint.com vera main upstream import backport
    2: deb http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
Info:
  Processes: 203 Uptime: 3h 17m wakeups: 1 Memory: 3.83 GiB
  used: 1.52 GiB (39.6%) Init: systemd v: 249 runlevel: 5 Compilers:
  gcc: 11.3.0 alt: 11 Shell: Bash v: 5.1.16 running-in: gnome-terminal
  inxi: 3.3.13
  

[Jo-con-Ël]

I would remove EFI partition you don't need with Gparted (select sda4>Click on dustbin icon and click on Apply button).

Close Gparted when done, open a terminal and copy and paste following codes (one line each time and press enter) to reinstall grub (see here Linux Live or chroot methods for BIOS)

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sudo mount /dev/sda6 /mnt
for i in /dev /dev/pts /proc /sys; do sudo mount -B $i /mnt$i; done
sudo chroot /mnt
grub-install --recheck /dev/sda
update-grub
exit

You will need to remove efi line on fstab so run

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sudoedit /mnt/etc/fstab

Remove or comment (write # at the line beginning)

#EFI partition was on /dev/sda4 on installing
#UUID=XXXX-XXXX /boot/efi vfat umask=0077 0 1

Press Ctrl+O to save (press Enter to confirm) and press Ctrl+X to close editor. Then unmount

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sudo umount -R /mnt

Reboot to select that Hitachi disk on computer's boot menu (F8). Be sure you get GRUB menu and there is a Windows option on GRUB menu.

If it is not, on a working Linux Mint session open a terminal, run and post back following codes results.

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sudo update-grub

[DRickraft]

THANK YOU SO MUCH!!!
Everything is working as it should now.
You're a life saver!!