Hey guys, I’m not the most knowledgeable person about macOS recovery and software issues, so I thought I’d seek help here. I attempted to install High Sierra on my 2011 MBP, running an HDD. My install failed, the installer saying the proper file system checks on the hard drive could not be completed. I restarted and attempted the install again; this time, it said the software package was damaged or missing. I’ve tried quitting the installer, shutting down, what have you. Even opened up disk utility, though I don’t exactly know how to utilize it. Luckily my important content is backed up to multiple places, but I have no backup software image for Sierra or High Sierra. I’m at an impasse. Could anybody recommend a way to proceed? I’d love to get things working again. Also, apologies if this has been posted in other threads - just trying to reach out before hitting the hay. Thanks!