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Hope this is the right place to post this regarding Debian/Unbuntu simularities. I've installed OPM via a USB key onto another USB key which I'm now booting from. However, each time I turn the machine on from cold (not a reboot) I get the following error: Error 1962: No operating system found. Boot sequence will automatically repeat. If I CtrlAltDel 3 times at this screen, it will eventually boot into Grub and I can run OMV.

I can't work out why this is happening and it doesn't simply boot into grub first time? From searching I'm aware that this seems like an issue with Lenovo boards/bios. However because I'm a total newbie at linux I'm having difficulty finding out if there's an actual fix? People are mentioning possible partition issues, mounting them differently, UEFI? My background is windows based so I don't know how I'd go about acting on those subjects within Debian?

My bios startup settings are that I've removed all other devices from it except the USB which is holding the OS (USB HDD 1) and the USB Key setting itself. I've CSM enabled, Boot Mode set to 'Auto' and Boot Priority set to 'UEFI First'.

Could anyone point me in the right direction as to how to solve this problem? One from a beginners perspective? Any help greatly appreciated.

Jim
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I had this same error when installing Linux Mint to a 2012 Lenovo ThinkCentre desktop.

Certainly there are many things that can trigger this error - problems with the grub configuration or BIOS settings, for example. But none of that was working for me.

Check that your BIOS is up-to-date, especially if it's an older computer. That was the problem in my case. I will not speculate on why this fixed the problem, but BIOS updates exist for a reason and are often needed to extend the useful life of a computer.

If you can boot to a live disk but not the newly installed OS, and if the installed OS boots just fine when connected to a newer machine, updating the BIOS can sometimes fix your problems. But be careful when updating the BIOS, make sure you back up your data first; if something goes wrong you can brick your computer.