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How to enforce a boot from harddisk when the system is booted via a RHEL DVD?

Posted on 2012-04-12
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Last Modified: 2013-12-06
Hello experts,

I have  Linux server which is booted via RHEL DVD and it gives me the REDHAT Linux installation screen with 'Boot:' prompt, I want to know the command to proceed with normal boot instead of RHEL Installation at 'Boot:' prompt.

Please take look the snapshot.
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Question by:sudhirgoogle
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Author Comment

by:sudhirgoogle
ID: 37836354
I don't want to remove the DVD and reboot the server. I am curious to know the alternate way of doing it.
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Expert Comment

by:Michael W
ID: 37840647
If you want to customize the boot options for a particular option, press the Tab key. To access the boot: prompt at which you can specify custom boot options, press the Esc key.

The only alternative would be to have the BIOS changed to look at the hard disk first before the CD/DVD player.
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Author Comment

by:sudhirgoogle
ID: 37850580
I want to know the Boot: prompt command to boot directly from harddrive, not via altering the BOIS. Please help me with the command.
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Expert Comment

by:TobiasHolm
ID: 37865573
I've checked the Anaconda manual and I can't find a command for booting from the local hard drive so I'd say the only way is to remove the DVD and reboot the server, or change boot order in the BIOS.

Regards, Tobias
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Accepted Solution

by:
Gerwin Jansen, EE MVE earned 500 total points
ID: 37866207
Only way I can think of is creating a custom RHEL DVD that has a modified boot menu. Same as modifying the boot menu on a harddisk based installation. Since you have the standard RHEL DVD there is no possible way to boot from harddisk as the original DVD is meant for setup or recovery, it will not boot automatically...
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Author Comment

by:sudhirgoogle
ID: 37869262
Thanks gerwinjansen, can you please provide detials about modifying the boot menu that will have the command to boot from hdd.
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Expert Comment

by:Gerwin Jansen, EE MVE
ID: 37874838
Hi, as I don't own a RHEL DVD, I went along with a Fedora DVD, modified the boot menu but upon starting I got an isolinux checksum problem. I have to do some further investigation on that. What I did was mount the .iso image of the DVD using magiciso and modifying isolinux.cfg (menu default).
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Expert Comment

by:Infrastructure
ID: 37922231
F11?

You could install multiboot on a thumb drive and configure multiboot menu to boot either hte local HD/cdrom or iso on the usb stick.

--JMS
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Author Comment

by:sudhirgoogle
ID: 37935853
hello JMS,

you want me to try pressing F11 key??

how do i configure to boot from hte local HD/cdrom or iso on the usb stick.
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Expert Comment

by:Gerwin Jansen, EE MVE
ID: 37938116
Pressing the BIOS F11 key will not work as the system is booted from DVD already.
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Author Closing Comment

by:sudhirgoogle
ID: 38658909
thanks for your solution
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