Boot-Repair vs GNU GRUB

Boot-Repair is free Linux software for restoring access to operating systems after boot failures. It addresses common GRUB problems and situations where Ubuntu or Windows no longer starts after another operating system is installed. Its Recommended Repair can reinstall GRUB and recover access to previously installed systems. Advanced options provide partition-table and boot-sector backups, GRUB setting changes, restoration of a Windows-compatible MBR, and filesystem repair. Boot-Repair can produce a Boot-Info diagnosis for sharing with helpers by email or on a forum. You choose whether to upload that report to Pastebin or keep it local; uploaded reports are described as expiring after some days. Boot-Repair-Disk starts the tool automatically and also includes OS-Uninstaller and Boot-Info. It can also run from Ubuntu, Debian, and derivative live environments. The project describes automatic backups and says the software is distributed without warranty.

GNU GRUB has no write-up on Specifiction yet; its figures are above.