Stopped booting

My Proxmox box has been running fine for months, and then all of sudden crashes and won't boot. I am not the most savvy linux admin but I usually can scrape by with little web search. I'm not figuring out how to get the box to boot again. Anyone have any clues for me? Here is a picture of the screen. I think the most significant line is
run-init: can't execute '/sbin/init': input/output error

2024-10-08 16.50.22 (Small).jpg
Again this was working fine then just crashed. What am I dealing with here? Disk failure? Bad block? Bad update?
 
Thanks, that gave me a bunch of inode errors. So I booted to live USB and ran fsck, looks like the boot disk is toast. Thanks for that link it really helped a lot.

Thanks too, glad it helped straight away. Please leave a like/comment on the linked "tutorial" as well, as it will make obvious how many people needed to resort to it. I literally made it last night because you were the second person asking within a few hours. :)

You may also want to change your own thread flagged as [SOLVED] (it's in edit title).