Linux partition is recognized by Boot-US as non-bootable
Boot-US considers a Linux partition as non-bootable when
the Linux partition does not have a valid boot sector.
Such a partition is indicated as non-bootable by Boot-US. Boot-US requires a
valid boot sector to boot that partition.
Contrary to Windows partitions there are several ways to boot a Linux partition.
A missing boot sector is therefore nothing special for a Linux partition.
This problem of a missing boot sector can be easily repaired.
It is only required to install the Linux boot loader, for example Grub2, onto this partition
(for example sda2).
In the previous Linux tip 1 you can find a short introduction for installing