First of all yes I was that stupid.
It is a very common issue that I see is present since the times Grub was introduced.
I guess you already suspect it.
I was naive to believe that boot loader is placed somewhere in the installation directory of Linux and using partitioning software on Windows I formated Linux partitions.
Now I am stuck with Grub rescue > thing.
There is a lot information about the trouble, but mine differs that I can;t load any CD or dvd. regardless of bios settings, it is just ignored. I can boot only from one specifix USB key, all others doens;t boot either. The nice Linux I erased was based on Ubuntu, since I decided to go back to OpenSuse (I am partially migrating to Linux anyway and form my experimentations OpenSuse is the most solid one) And while I had important rendering process going on I decided to use that 30 mins and format the partitions.
The most interesting thing is that no other Linux OS except OpenSuse will boot. I fallowed the steps of creating Live USB related to the Linux I erased, no boot, I tired other Linux OS - no boot, only openSuse will work. Unfortunately what ever I do, even after successful installation of OpenSuse I get the Grub rescue >
it won;t accept any commands except Set.
I no longer have any other OS except OpenSuse because I tried to do a master level formating, erased all partitions merged all into one and created one prime partition to which I installed Opensuse.Still nothing has changed.
The only way I can boot to live OS is to use the only one and no other USB key and it will work with OpenSuse Only.
But I need to install windows because i have a job project that I need to accomplish using software available only for Windows and MAc OS X.
Is there any tool to wipe out grub and set booting to default one using openSuse Live USB?
Seeing how many times and for how many years people are getting into similar situations, Grub devs should have addressed it and make grub load to second or third OS available on HDD if the prime one is missing.
Could anyone help me please?
I will try to boot Kubuntu and see if it can override grub, but from 6 different Linux boot attempts it looks like only OpenSuse can boot and only on the precise USB key, the other one I have is ignored too, but it works fine on another pc and boots everything.
Thank you very much in advanced for your help!