He told BBC Radio Leeds: "This is probably the only club I would come to at this stage of the season. I just want to get going now."
Two Brian McDermotts...
The new manager of Leeds United has the same name as the head coach of Leeds Rhinos. The Rhinos coach has won two Grand Finals and one World Club Challenge in his two seasons at Headingley. In addition, both clubs have a winger called Ryan Hall.
A slow start to the 2011-12 season saw the Royals sitting in 16th position at the start of November, but McDermott oversaw an upturn in form as Reading picked up 46 points from a possible 51 and ended up as league champions.
However, they failed to pick up where they left off after their promotion to the Premier League and did not record their first win of 2012-13 until a 2-1 success over Everton on 17 November.
Permanent Leeds managers since 2004
- June 2004 to September 2006
- October 2006 to January 2008
- January 2008 to December 2008
- December 2008 to February 2012
- February 2012 to April 2013
Despite recording four consecutive wins in January, they were unable to sustain their good form and by the time McDermott left were four points adrift of safety.
He will be assisted at Elland Road by Nigel Gibbs, 47, who held the same position under him at Reading.
McDermott becomes Leeds' sixth permanent manager since they were relegated from the top flight in 2004.
Warnock told BBC Radio 5 live that he is confident his successor will do well at Leeds.
"I am pleased. He is a really nice bloke and he deserves another good crack and it is a cracking club - a big club and I think this could be a marriage made in heaven," he said.
"They have new owners and I think they will give Brian investment to sign two or three players we needed really."
David Haigh, deputy chief executive of Leeds United owners GFH Capital, said: "He is a man with a proven track record of success and shares our vision.
"Obviously the immediate aim is a return as soon as possible to the Premier League. Brian's success in taking Reading to the Premier League last year was a key factor in our decision to hire him."
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