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Old 07-17-2013, 07:56 AM   #1
faisal59
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Registered: Jul 2013
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Booting Problem. Windows and ubuntu on internal hdd. Centos on External USB hdd


I have Windows 7 and Ubuntu 12.04 on internal hard disk of my Dell n5010 and Centos 6.4 on an external usb hard disk.
I am having problem booting from both the internal and the external hdd.

After installation of Centos 6.4 on external hdd, i was unable to boot into my internal hdd if I remove my external hdd.

then I repaired Windows boot manager using EASY BCD. After that, my external USB hdd won't boot and the system would directly boot into windows boot loader even if i have usb hdd connected.

Please give me a solution so that I can boot into the external hdd when it is connected and boot into the internal hdd if external hdd is not connected.
 
Old 07-17-2013, 08:19 AM   #2
colorpurple21859
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Distribution: slackware64-current, puppy, ubuntu
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Looks like you need to use the ubuntu dvd/cd to reinstall grub to the internal harddrive. Then before booting into Ubuntu plug in the external hardrive and run update-grub in Ubuntu.
 
  


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