Diskprobe Deb Info
Learning how a bootloader (GRUB, LILO) writes to the first sectors is fascinating. You can compare a sector before and after installing GRUB.
After installing the .deb, you cannot simply click an icon and edit /dev/sda. Linux requires elevated privileges for raw disk access. diskprobe deb
Sometimes the package name is case-sensitive or slightly different. Perform a search: Learning how a bootloader (GRUB, LILO) writes to
apt-cache search diskprobe
If nothing appears, try a broader search: If nothing appears, try a broader search: apt-cache
apt-cache search sector editor
apt-cache search forensics