On the DVD
32- or 64-bit
As you probably know, GRUB2 is the most common bootloader for Linux. By editing GRUB2, you can start a system in a different operating system or using a different kernel. By using Super GRUB2 Disk from a live external drive, you can dual boot different Linux distributions, BSD, macOS, and Windows on common form factors.
With Super GRUB2 Disk, you can edit GRUB in a number of ways. The most common uses include listing available bootable drives and adding or deleting a Linux distribution or an operating system. You can also use Super GRUB2 Disk to detect or recover GRUB2 configuration files, as well as enable LVM, PATA, and RAID support. In addition, experimental support is available for booting an external drive. All these options and more are documented on the Super GRUB2 Disk website (https://www.supergrubdisk.org/wiki/SuperGRUB2Disk).
You should keep Super GRUB2 Disk on hand in case of emergencies. However, you may also find it the most convenient way to edit GRUB2 under any circumstances.
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