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Missing Operating System error when trying to boot from CD

1823alex
By 1823alex
in Troubleshooting
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I just got an HP DL360 G5 from eBay and installed the wrong Server 2012, and I needed to clear the raid config, so that's what I did, but now when I try to boot from the correct OS disk. Server 2012 Essentials, it just says "Attemting to boot from CD or DVD..... Missing Operating System" and then it won't boot at all since there is no OS. I haven't reset the ROM thing (Not sure what it's called it's like a backup ROM or something? Should I reset that? It's in the correct boot order and all. Just keep getting this error. 

Gaming Rig - Excalibur - CPU: i5 6600k @ 4.1GHz, CPU Cooler: Hyper 212 Evo, Mobo: MSI Gaming M3 RAM: 16GB Corsair @2400MHz, GPU: EVGA 1060, Case: NZXT Phantom Full Tower (Red)

My Virtualization Server - Dell R710: 2x X5570s @ 2.93GHz with 32GB DDR3 RAM [Web Server, OSX, Plex, Reverse Proxy]

I love computers, gaming, coding, and photography! Be sure to quote me so I can respond to your post!

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I just got an HP DL360 G5 from eBay and installed the wrong Server 2012, and I needed to clear the raid config, so that's what I did, but now when I try to boot from the correct OS disk. Server 2012 Essentials, it just says "Attemting to boot from CD or DVD..... Missing Operating System" and then it won't boot at all since there is no OS. I haven't reset the ROM thing (Not sure what it's called it's like a backup ROM or something? Should I reset that? It's in the correct boot order and all. Just keep getting this error.

Well I that maybe the best person to help you out is someone like @WoodenMarker. ;)

ON A 7 MONTH BREAK FROM THESE LTT FORUMS. WILL BE BACK ON NOVEMBER 5th.


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Can you list the current boot order?

Do you have any removable media that the system might be trying to boot from?

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
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Can you list the current boot order?

Do you have any removable media that the system might be trying to boot from?

I've fixed and feel REALLY dumb I didn't reset the server back to rsbu or something with those letter in it settings and now it's working.

Gaming Rig - Excalibur - CPU: i5 6600k @ 4.1GHz, CPU Cooler: Hyper 212 Evo, Mobo: MSI Gaming M3 RAM: 16GB Corsair @2400MHz, GPU: EVGA 1060, Case: NZXT Phantom Full Tower (Red)

My Virtualization Server - Dell R710: 2x X5570s @ 2.93GHz with 32GB DDR3 RAM [Web Server, OSX, Plex, Reverse Proxy]

I love computers, gaming, coding, and photography! Be sure to quote me so I can respond to your post!

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