ReaR - Relax and Recover - how to check if system will boot normally

hi guys,

tried to use rear-recover. the mkrescue was created by another person.
when I tried to use rear-recover, it has this final message:

Finished recovering your system. You can explore it under '/mnt/local'

However, when I browse /mnt/loca/ there is no etc directory, i don't see any grub config on /boot

so, how to check if the system will boot normally?

is there some sort of a command, like: test -check if system will boot ok?

Thanks.