Hola,

Good to here with you.

Recently, I was deleted KVM Virtual Machine around 250GB File size. It has S4HANA Database. I tried to restore by using following tools (Photorec, foremost, extundelete).

By Using Photorec, ".cow" file is restored. But, i am getting an grub error when i create a new VM with this file.

By Using foremost, I got so many .qcow2 files. But all are below 100MB Size.

By Using extundelete, I am getting to run a command.

Can you suggest any other tools and procedure or any other solution. Please help me to solve my problem. This VM is very important to me and my team. It will gives more benefit to us.


Thanks in advance.

I know this is after the fact but backups prevent this problem. I can't help with recovery but in the future you should always backup your data, vm or bare metal doesn't matter. Always backup everything you can't afford to lose from now on.

Not important enough for you to have a backup apparently. why is it so valuable now ?.

If photorec found the image, it should be usable - does it contain your data ?. If so, do you have any means to ensure it is actually valid - i.e. not corrupted ?. Grub not booting is the least of your worries - you should be able to mount the image as nbd in the host, or try booting the guest from a liveCD iso and take a look around. In need you can probably chroot into the image to fix grub. Do some research online.

I might be tempted to pull plug, boot to a live media that has testdisk/photorec and see what you can get.

As jefro suggested, the very first step with such oopsies is to STOP USING THE AFFECTED FILESYSTEM IMMEDIATELY.
Then you might get lucky with extundelete or photorec (in that order).

And yes, you probably want to restore ALL files related to that vm.