IT Answers » Cisco CallManager upgrades http://itknowledgeexchange.techtarget.com/itanswers Mon, 20 May 2013 07:09:50 +0000 en-US hourly 1 Cisco CallManager upgrade from 4.X to 6.1 http://itknowledgeexchange.techtarget.com/itanswers/call-manager-upgrade-from-4x-to-61/ http://itknowledgeexchange.techtarget.com/itanswers/call-manager-upgrade-from-4x-to-61/#comments Sun, 21 Dec 2008 10:18:32 +0000 Ipttrc I want to upgrade my Cisco Callmanager version from 4.1 to 6.1.My server is HP Compaq Proliant GL320 G2.I upgraded my server 2*80GB HDD and 2GB RAM.Buy I have error

Grub Loading Stage 1.5
Grub Loading please wait….
Error 21

when I installed 6.1 DVD.

Can you help me for this problem.

Thanks,

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