![]() ![]() ![]() When GRUB 2 is fully functional, the GRUB 2 terminal is accessed by pressing c. Tab completion and using the up arrow to repeat commands work the same as in a normal terminal. Type help x to view help commands beginning with the letter "x". Type help to view a list of all the commands. Set pager=1 To prevent text from scrolling off the screen, type set pager=1. Typing a few additional characters and pressing TAB again may allow tab completion to finish the entry. At any point, pressing the TAB key may complete an entry, if the element is unique, or display available options. "black" as the second entry retains the menu's transparency and should be avoided as a selection if the user wants to work with a solid background color. Press c at the GRUB 2 menu to get to the command line and then type: set color_normal=white/blue or the color combination you wish to use. This may make viewing the terminal easier. Here are some useful tips and features for use with the GRUB 2 terminal: This ensures compatability of any modules and configuration files that may be loaded while attempting to repair the system. If using an Ubuntu LiveCD, it is recommended, but not always necessary, to use the same version CD as the system you are trying to repair. Additionally, there are compatible 3rd party bootable "rescue" CD/USB options which may also work. GRUB 2 allows pre-boot editing of its menu and the user may restore functionality by adding and/or removing kernel options in a menuentry before booting.Įach of the GRUB 2 failure modes can normally be corrected either from the GRUB 2 terminal or by using an Ubuntu LiveCD. While these failures are not of GRUB 2's making, it may still be able to help. Possible causes include an incorrect UUID or root= designation in the 'linux' line or a corrupted kernel.įrozen splash screen, blinking cursor with no grub> or grub rescue prompt.
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