Because of the automatic changes induced by update-grub however, manual edits are subject to being overwritten by the system. If grub. It is possible to "freeze" the current grub. The versatility of GRUB 2 probably makes this option the least desirable. The parts of grub.
The user can make one or more of those scripts non-executable and substitute a custom entry or edit the actual script. Either method allows menu customization while still permitting the system to update GRUB 2. This configuration file contains information formerly contained in the upper section of GRUB Legacy's menu.
While the most common settings are present in the default file, additional environmental settings are available for inclusion in this file. These include items such as backgrounds and themes.
The placement of the menu items in the grub. Files with a leading numeral are executed first, beginning with the lowest number. If files with alphabetic names exist, they are run after the numerically-named files.
Only executable files generate output to grub. Users normally do not need to make changes to this file. In the absence of a splash image, this file sets a monochromatic theme for the initial menu display.
This includes the associated recovery mode option if enabled. In GRUB 1. Note: For earlier versions of GRUB 2, all kernels residing in the boot folder are included on the main menu.
There is currently no line option to remove this entry from the menu. Users familiar with basic scripting can alter these variables to change the format of the displayed menu entries. Removing the executable bit from the file will also prevent it from searching for other operating systems. By default os-prober ignores any disks that possess "dmraid" signatures, which can be listed via sudo dmraid -r -c if installed.
If not found, the script will construct a menuentry from the actual boot information it locates. The file can be renamed or copied. The file must be executable to be incorporated into the GRUB 2 menu. As mentioned in the introduction of this section, the name of the file determines the location of its contents in the GRUB 2 menu. These files contain no menuentries and thus will not interfere with a menuentry from a custom script with a lower priority. Options include the time the menu is displayed, the default OS to boot, etc.
The default options included in file upon installation are only a small number of the variables which GRUB 2 can recognize. The file is a simple text file and can be edited by any text editor. In Ubuntu the default text mode editor is nano and the graphical mode editor is gedit , and the file can be edited with one of the following commands. The first "menuentry" in grub. Note: Grub 1.
For a menu item in a submenu, the entry becomes a two-digit entry. How to make kernel 2. According to your menu. Normally if you installed originally a release of Ubuntu prior to 9.
I also notice that your menu. Did you manually install grub-legacy with a livecd? During the reinstall step, you should be presented with a menu with a blue background asking you to check off which drives grub should be installed to. Make sure your boot drive is selected.
If you don't get that screen, then you can force it by running sudo dpkg-reconfigure grub-pc. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Default kernel is missing from grub 1 menu Ask Question.
Asked 10 years, 1 month ago. Active 4 years, 4 months ago. Viewed 2k times. I used command uname -r. It says current running version is 2. Thread: Grub Broken.
May 8th, 1. Grub Broken Hi there, I upgraded to Booted using this: Code:. Adv Reply. May 8th, 2. Boot info script. May 8th, 3. Re: Grub Broken. Are you using Grub Legacy? May 8th, 4. Re: Grub Broken Thanks for the replies Looking at the package list, I have grub legacy version and grub-common.
Here's the output: Code:.
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