no boot linux

[mahesh]

hi there,
first time here so here goes, not able to boot into my Linux at all, have re-installed grub but to no avail, I have tried boot repair and can see the report, it failed to repair the boot, I have a black screen that flashes 7 times then just stays black, how do I upload the report to get help from the community, many thanks and kind regards to you all...