Operating system cannot be found, Cannot boot from any device w510

[aioy]

Before this problem I was stuck in a grub rescue screen after trying to install puppy linux, and to fix it I used a boot rescue disc, but after using the boot rescue disc I restarted my computer and it says no operating system found, then this screen appears https://ibb.co/iAHe86 and I have no idea what to do from here. I thought the boot repair disc erased puppy linux after I installed it, so I put in a lubuntu disc and tried installing that, but while I was trying to install it, it said puppy linux was still on my computer, but I don't know how because its not booting. Does anyone know how I can get puppy linux to boot from here?

I'm using a thinkpad w510 and I don't think anything is wrong with my hardware since I can still boot into another operating system like I did in lubuntu, I just want to boot into puppy linux though. And Does anyone know how much a computer shop will charge to fix a problem like this? I will appreciate any help.

EDIT: /viewtopic.php?t=63779
This guy has the same problem as me, but the responses suggest his hardware is faulty, but since I can still boot other operating systems I don't think my hardware is faulty, I just want to know how to boot puppy linux.

[bit_twiddler]

It could be a lot of things. In particular, it sounds like you have puppy linux installed on a hard drive,
so booting off a dvd or cdrom doesn't indicate that your hard drive is O.K.

One place to start would be to do some form of hard drive diagnostics on your hard drive.

If your drive checks out, I'd try getting a drive caddy, and some extra hard drives, setting the BIOS to boot from the drive bay,
and do your installs from an external USB 2.0 dvd reader. This assures that different operating systems
are not going to clobber each other during an install or update.

[jaspen-meyer]

That picture is saying, "you don't have grub installed on your hard drive."

Years ago I tried using puppy linux as my daily operating system, which is to say not as just a live CD, and the main file, one big squash file with the entire os and data, got corrupted after an unclean shutdown. Perhaps they've fixed that issue, but it was far too unreliable for me and I've never reconsidered using it as anything more than a rescue disk since.

I'm not sure how to install grub from puppy, in version 3.x and 4.x it had something called 'installed MBR'. On debian, or a derivate, you can install grub to a device with:
grub-install /dev/sdX
update-grub

To recover your system, perhaps you can boot into puppy and ask it to search all media for the squash file.