At the same court, another man admitted driving to the hotel in a pick-up truck laden with debris for rioters to hurl at police.
Jake Turton was filmed arriving at the scene in a Ford Ranger with wood and other scrap items on the back.
Rioters then used the wood to throw at officers and to fuel fires around the hotel that were blocking asylum seekers and staff inside.
Turton, 38, of Darfield, Barnsley, pleaded guilty to violent disorder and will be sentenced on 6 November.
Turton’s defence barrister said the rioters “helped themselves” to the wood and that the defendant did not actively participate in the violence.
However, Judge Sarah Wright said a custodial sentence was “inevitable”.
Turton denied another charge of taking a vehicle without consent and was found not guilty.
He was also remanded into custody.
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