When comparing Grub2 vs BURG, the Slant community recommends Grub2 for most people. In the question“What are the best Linux bootloaders?” Grub2 is ranked 2nd while BURG is ranked 4th. The most important reason people chose Grub2 is:
Only requires 2 commands most of the time (i.e. grub-install ... and grub-mkconfig ...).
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Pros
Pro Easy to install and setup
Only requires 2 commands most of the time (i.e. grub-install ... and grub-mkconfig ...).
Pro Support for a large number of Operating Systems
Grub can load a large number of operating systems, not just Linux.
Pro Easily locates a kernel file
Grub is very file-system aware. This way, it can easily locate a kernel file which is residing in the file system without having to specify a logical-sector.
Pro Has an interactive CLI
Grub has an interactive command line interface which can be very helpful at times if anything goes wrong during the boot process, especially after a fresh install or after a kernel update.
Pro Supports BIOS
Has BIOS support unlike other bootloaders which only support efi or uefi.
Pro Graphical
A big con is that it can show graphical menu to select your OS and there are numerous built-in themes to choose from. Also you can easily install others.
Pro Based on GRUB
Since it's based on GRUB, it can handle everything GRUB can, which means it's pretty full-featured.
Cons
Con Slower boot times
Grub has slower boot times than most other bootloaders.
Con Fully-featured also means harder to wrap your head around
Grub has a lot of features that other boot loaders may not have. But this also means more time spent on the documentation if you want to know the ins and outs of it.
Con No more updates
The project seems dead and haven't had any updated since 2013.