Using Solus along with Void.Grub is with Void.Suddenly grub entered to rescue mode.I manage to boot into grub and Solus.Void is showing as unknown operating system in grub menu and can not be booted.I installed grub with Solus.
# grub-install `/dev/sdb`
Installing for i386-pc platform.
Installation finished. No error reported.
# update-grub
Generating grub configuration file ...
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
done.
When I restart Solus it enters to grub rescue again.I also formated Void partition. Thanks for your help.