If you install Pop OS, install grub and run stub update-grub then config files should be found in /boot somewhere. Probably entries might remain on the EFI partition. Initrd /boot/initrd.img – specifies an initial RAM disk. in your Ubuntu you would have something similar thus when you wipe your Ubuntu your grub config files etc will be wiped also. The /etc/default/grub file is used by the grub2-mkconfig tool, which is used by anaconda when creating grub.cfg during the installation process, and can be used in the event of a system failure, for example if the boot loader configurations need to be recreated. Linux /boot/vmlinuz – specifies a file that contains the Linux kernel. Menuentry “OS Name” – sets the name of the menu entry. After you boot you can edit /boot/grub/grub. Arrow down to the line that starts with 'linux' and delete the 'dio1'. That will display the boot configuration. #!/bin/sh -e – use the bash shell to execute the script.Įcho “String” – sets the string that you will see when running update-grub.Ĭat << EOF – defines the start of the actual boot entry. When you see the Grub menu, select your Mint menu item but do not press Enter. Here is a brief description of each line in the script: If you want the new entry to be placed above others, use lower numbers, if you want it to be placed below others, use higher numbers.įor example, 12_NAME will be placed after the default entries by the operating system, whereas 07_NAME will be placed before the 10_linux entries. To add a new boot option, you need to create a new file that has the XX_ prefix in the name (where XX is a sequence of numbers) in the /etc/grub.d directory. This means that sda1 is hd0,1 and NOT hd0,0, as with GRUB Legacy. In GRUB 2, partitions are numbered starting from 1 rather than from 0. 40_custom – a template that you can use to create additional entries to be added to the boot menu.30_os-prober – scans the hard disks for other operating systems and adds them to the boot menu.20_memtest86+ – loads the memtest utility.20_linux_xen – loads the Xen hypervisor.No point doing that, though, until you solve the other problem. If that doesnt work, uninstall it and try the other. 10_linux – loads the menu entries for the installed distribution. Go into Synaptic and search for grub2-theme-mint. /etc /etc/default /etc/default/grub.d /etc/default/grub.d/init-select.cfg /etc/grub.d /etc/grub.d/00header /etc/grub.d/05debiantheme /etc/grub.d/10linux.05_debian_theme – defines the background, colors and themes.00_header – the script that loads GRUB settings from the /etc/default/grub file.Here is a brief description of each script: Here is the content of this directory in Ubuntu: Another scenario is when you have multiple Linux distributions installed on the same system. Your changes won’t take into effect unless you update the grub. Suppose you changed the grub config file (/etc/default/grub) to change the default boot order or reduce the default boot time. The main GRUB 2 scripts are located inside the /etc/grub.d directory. There could be a number of scenarios when you need to update grub. You can select which OS will be loaded by default, background image, timeout, etc. Here is an example /etc/default/grub file:Īs you can see from the picture above, this file contains the GRUB 2 menu settings. After making changes, you must explicitly rebuild the grub.cfg file by typing the update-grub command. You should modify or add to those files to configure GRUB 2. Grub.cfg is generated automatically from the content of the /etc/default/grub file and the /etc/grub.d directory. The GRUB 2 configuration file is located at /boot/grub/grub.cfg (some distributions place this file in /boot/grub2 to enable both GRUB Legacy and GRUB 2). # from /etc/grub.GRUB version 2 is the default boot loader for Fedora and Ubuntu. # It is automatically generated by grub-mkconfig using templates
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