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I created a Centos Live 5.4 Bootable USB drive. I used this to install Centos on a HP Netbook.

When the system goes to write the Grub boot loader to disk, it wants to write the boot loader to the usb drive (/dev/sda), not the hard disk (/dev/hda). I do have the option of writing the boot loader to /dev/hda, (not to the mbr!) but when I reboot I get an load error and the Grub prompt.

How can I get Centos booting from the hard disk instead of using the USB key.

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  • Maybe by asking this question on the appropriate forum of superuser.com
    – Chopper3
    Apr 15, 2010 at 10:01
  • @chopper3 - When did you score a diamond?
    – MDMarra
    Aug 28, 2010 at 0:19
  • about 2 months or so ago, it was on the SO blog, there was a vote etc.
    – Chopper3
    Aug 28, 2010 at 7:32
  • @Chopper3 - Ah, shows how much I pay attention. Congrats!
    – MDMarra
    Aug 28, 2010 at 17:17

2 Answers 2

Reset to default
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If you used whole hard disk for centOS, it might be possible to fix your grub.

From shell prompt, try this command below

#grub-install --recheck /dev/hda

After that exit to reboot.

If grub-install does not work for you, you can try to fix it manually from grub prompt. From grub prompt

grub> root (hd0,0)

Assumed that you've installed your boot on your first partition. Otherwise replace the last '0' with appropriate number. After that

grub> setup (hd0)

Then exit and reboot.

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Did you check the partitions on the hard disk first? Last time I worked on a netbook, it had a hidden partition for system recovery. You may need to wipe this out first.

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