What works is to reboot using Ctrl+Alt+Del, then pressing F12 repeatedly until the normal GRUB menu appears. Using this technique, it always loads the menu. Rebooting without pressing F12 always reboots in command line mode.
How do I start Ubuntu in command line mode?
Start Ubuntu from a virtual console
At the login: prompt type your username and press Enter . At the Password: prompt type your user password and press Enter . Now you are logged in to a text-only console, and you can run terminal commands from the console. To reboot the system run the command: sudo reboot .
How do I open terminal from grub command line?
When GRUB 2 is fully functional, the GRUB 2 terminal is accessed by pressing c. If the menu is not displayed during boot, hold down the SHIFT key until it appears. If it still does not appear, try pressing the ESC key repeatedly. From a GRUB 2 terminal with the grub> prompt, a wide variety of commands are available.
How do I install Ubuntu from grub command line?
via Partition Files Copy
- Boot to the LiveCD Desktop.
- Mount the partition with your Ubuntu installation. …
- Open a terminal by selecting Applications, Accessories, Terminal from the menu bar.
- Run the grub-setup -d command as described below. …
- Reboot.
- Refresh the GRUB 2 menu with sudo update-grub.
How do I open a grub file in Ubuntu?
Open the file with gksudo gedit /etc/default/grub (graphical interface) or sudo nano /etc/default/grub (command-line). Any other plaintext editor (Vim, Emacs, Kate, Leafpad) is fine too. Find the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add reboot=bios to the end.
How do I start Ubuntu in normal mode?
Use Recovery Mode If You Can Access GRUB
Use the arrow keys to select the “Ubuntu … (recovery mode)” option in the submenu and press Enter. GRUB will boot your Ubuntu system in a very minimal recovery mode menu, skipping the majority of the system services and all the graphical applications that load.
How do I use GRUB command line?
With BIOS, quickly press and hold the Shift key, which will bring up the GNU GRUB menu. (If you see the Ubuntu logo, you’ve missed the point where you can enter the GRUB menu.) With UEFI press (perhaps several times) the Escape key to get grub menu. Select the line which starts with “Advanced options”.
How do I edit a GRUB command line?
1 Answer. There is no way to edit a file from the Grub prompt. But you don’t need to do that. As htor and Christopher already suggested, you should be able to switch to a text mode console by pressing Ctrl + Alt + F2 and log in there and edit the file.
How do I boot to command prompt in Linux?
Find the kernel line and add either single or init=/bin/sh to the end of it then press Ctrl + X to boot. Alternatively have you tried pressing Ctrl + Alt + F1 to get to a terminal? ya, if grub doesn’t show a menu, hold [shift] when it’s starting. Go to your Ubuntu version’s menu item, and press ‘e’ to edit.
How do I get to the command line in Linux?
Linux: You can open Terminal by directly pressing [ctrl+alt+T] or you can search it up by clicking the “Dash” icon, typing in “terminal” in the search box, and opening the Terminal application. Again, this should open up an app with a black background.
How do I manually install GRUB?
Installing GRUB2 on a BIOS system
- Create a configuration file for GRUB2. # grub2-mkconfig -o /boot/grub2/grub.cfg.
- List block devices available on the system. $ lsblk.
- Identify the primary hard disk. …
- Install GRUB2 in the MBR of the primary hard disk. …
- Reboot your computer to boot with the newly installed bootloader.
How do you recover GRUB in Linux?
Steps to recover deleted GRUB bootloader in Linux:
- Boot into Linux using Live CD or USB Drive.
- Get into Live CD mode if available. …
- Launch Terminal. …
- Find Linux partition with working GRUB configuration. …
- Create temporary directory to mount Linux partition. …
- Mount Linux partition to the newly created temporary directory.
What is a GRUB in Linux?
GRUB stands for GRand Unified Bootloader. Its function is to take over from BIOS at boot time, load itself, load the Linux kernel into memory, and then turn over execution to the kernel. … GRUB supports multiple Linux kernels and allows the user to select between them at boot time using a menu.
How do I change grub settings in Ubuntu?
It’s automatically created by running the update-grub command as root — in other words, by running sudo update-grub on Ubuntu. Your own GRUB settings are stored in the /etc/default/grub file. Edit this file to change GRUB2’s settings. Scripts are also located in the /etc/grub.
How do I check my grub settings?
Press your up or down arrow keys to scroll up and down the file, use your ‘q’ key to quit and return to your regular terminal prompt. The grub-mkconfig program runs other scripts and programs such as grub-mkdevice. map and grub-probe and then generates a new grub. cfg file.