cat<\/strong><\/td>\n| Write the contents of a file to standard output.<\/td>\n | cat (hd0,1)\/boot\/grub\/grub.cfg<\/strong><\/td>\n<\/tr>\n\nconfigfile<\/strong><\/td>\n| Load a configuration file.<\/td>\n | configfile (hd0,1)\/boot\/grub\/grub.cfg<\/strong><\/td>\n<\/tr>\n\ninitrd<\/strong><\/td>\n| Load the initrd.img file.<\/td>\n | initrd (hd0,1)\/initrd.img<\/strong><\/td>\n<\/tr>\n\ninsmod<\/strong><\/td>\n| Load a module.<\/td>\n | insmod (hd0,1)\/boot\/grub\/normal.mod<\/strong><\/td>\n<\/tr>\n\nloopback<\/strong><\/td>\n| Mount an image file as a device.<\/td>\n | loopback loop0 (hd0,1)\/iso\/image.iso<\/strong><\/td>\n<\/tr>\n\nls<\/strong><\/td>\n| Display the contents of a directory or partition.<\/td>\n | ls (hd0,1)<\/strong><\/td>\n<\/tr>\n\nlsmod<\/strong><\/td>\n| Display a list of loaded modules.<\/td>\n | The command is issued without arguments.<\/td>\n<\/tr>\n | \nnormal<\/strong><\/td>\n| Activate the normal module.<\/td>\n | The command is issued without arguments.<\/td>\n<\/tr>\n | \nsearch<\/strong><\/td>\nSearch for devices. Option\u00a0–file<\/strong>\u00a0searches for files,\u00a0–label<\/strong>\u00a0searches for labels,\u00a0–fs-uuid<\/strong>\u00a0searches for filesystem UUID.<\/td>\nsearch -file [filename]<\/strong><\/td>\n<\/tr>\n\nset<\/strong><\/td>\n| Set an environment variable. If issued with no arguments, the command prints the list of all environment variables and their values.<\/td>\n | set [variable-name]=[value]<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span>Repairing Boot Error<\/strong><\/span><\/h2>\nThe GRUB Rescue prompt<\/strong> and the Boot Repair tool are the two methods covered in this tutorial for fixing GRUB boot problems.<\/p>\n<\/span>1: Thru Grub Terminal<\/strong><\/span><\/h3>\n1: To display the environment variables, use the set command without any arguments:<\/u><\/p>\n\nset<\/code><\/li>\n<\/ul>\nAccording to the example output, GRUB is configured to start from the (hd0, msdos3) partition:<\/u><\/p>\n 2: The ls programme displays a list of the disk’s accessible partitions.<\/u><\/p>\n\nls<\/code><\/li>\n<\/ul>\nThe partition list appears in the output.<\/p>\n To locate the partition holding the boot directory, use the ls command.<\/p>\n \nthe partition named ls<\/code><\/li>\n<\/ul>\nThe (hd0, msdos1) partition’s boot directory is displayed in the example.<\/p>\n 3: Change the root variable’s value to the boot partition. The illustration employs the division titled (hd0, msdos1).<\/u><\/p>\n\nplace root= (hd0, msdos1)<\/code><\/li>\n<\/ul>\n4: Launch the standard boot mode.<\/u><\/p>\n\ninsmod default<\/code><\/li>\n<\/ul>\n5: Launch the standard boot mode.<\/u><\/p>\n\nnormal<\/code><\/li>\n<\/ul>\nYou can provide more intricate commands in the usual mode.<\/p>\n 6: Use the Linux command to load the Linux kernel.<\/u><\/p>\n\nroot=\/dev\/sda1 ro Linux \/boot\/vmlinuz-4.2.0-16-generic<\/code><\/li>\n<\/ul>\n7: Execute the command boot.<\/u><\/p>\n\nboot<\/code><\/li>\n<\/ul>\nNow, the computer boots correctly.<\/p>\n <\/span>2: Via Live picture<\/strong><\/span><\/h3>\nUsing a Linux live image to boot from an external device is another option to resolve your GRUB boot problems.<\/p>\n 1: Get a live Linux installation first. The ISO image of Ubuntu 20.04 is used in this example.<\/u><\/p>\n | | | | | | | | | | | | | | | | | |