adding a managed account to sharepoint farm

if you receive following error

“The installation was unable to find any managed accounts on the farm.Please confirm you have at least one managed account setup in central adminitration.Please create one and re-launch the installer.”

you may use the following links to

http://technet.microsoft.com/en-us/library/ff607831.aspx

http://blogs.technet.com/b/wbaer/archive/2010/04/11/managed-accounts.aspx