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My IBM server is running RHEL 6, and it cannot boot up. The BIOS seems to be OK (since I was able to go in to change the boot order), and during boot-up, it will stop at a black screen with a picture of a diskette, and arrows pointing to what seems like the F1 key. I'm not sure what this means, and multiple restarts gave me the same problem.

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What model computer is it? What's the make/model of the BIOS? Have you checked all the connections? Have there been any recent changes to or incidents involving this system? – Iszi Jun 13 '11 at 6:33
It's a x3650. Nothing was changed to the server, but it wasn't accessed for about 2 months and when I tried to access it, I saw this error. – Rayne Jun 13 '11 at 8:43

You have problem in boot sector. If you have a partition table backup, restore it, otherwise there are applications to fix it. Some partition table editors can do it.

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How do I restore the partition table backup? Sorry, but I'm not familiar with partitions. – Rayne Jun 13 '11 at 8:43
You should backup it before. If you did not, then your choice is fixing MBR (master boot record) which seems to be overwritten incorrectly. – Xaqron Jun 13 '11 at 21:11

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