Shu was not overthrown by Geb, but by the forces of Apep, and gave up his rule in favor of his son Geb. This event was said to be celebrated by the gods.
Geb did not overthrow his father Shu, Shu became tired after fighting against the forces of Apep and gave Geb his throne - in turn, Geb gave his throne to Osiris.
Shu god of the air is the father of Geb god of the earth and the goddess of magic Isis is the daughter of Geb.
Geb was the son of Shu and Tefnut, the brother-husband of Nut, and the father of Osiris, Isis, Set, Horus the Elder, and Nephthys.
Ra is the father of Shu who is father of Geb; who is father of Isis and Osiris whose son Horus is the wife of Hathor; and Hathor became Sekhmet as the vengeful/protective Eye of Ra.
Horus's mother was Isis, and his father was Osiris; his grandparents were Nut and Geb, his great grandparents Tefnut and Shu; Tefnut and Shu being the children of Atum/Ra.
Shu, god of air had a consort (or 'sister-wife') in Tefnut, goddess of moisture. Their children were Nut, the sky goddess and Geb, the god of the earth. Shu held aloft Nut from Geb; his grandchildren by Nut and Geb are Osiris, Set, Isis, Nephthysand Horus the Elder.
Ra, also known as Atum, is her father. She didn't have a mother. Her twin brother Shu is the one she maried and they had two children together. Geb and Nut were their offspring and Shu has separated them forever. Geb is forever sent to stay in the Earth and Nut is forever sent to stay in the sky. Geb and Nut had five children that were born during the demon days and they were Horus, Osiris, Set, Isis, and Nephyts.
Where Horus is the son of Osiris and Iris, his grandfather is Geb, the Earth; where he is the son of Geb and Nut and brother to Iris and Osiris, his grandfather is Shu.
Ra Osiris Horus Hapi Sobek Anubis Shu Geb
The god of the Earth is Geb; the goddess of the sky is Nut. Their parents are Shu a god of air; Tefnut a goddess of moisture, moist air, dew and rain in Ancient Egyptian religion. Nut is held apart from her brother-consort Geb by Shu.
Ra is the father of Shu and Tefnut, whose children Geb and Nut had Osiris and Nephthys who were the parents of Anubis. Or the parents of Anubis are Ra and Nephthys or Set. Bast and Heset are also called mothers of Anubis.
As the God of the earth, Geb was one of the most important of ancient Egypt's gods. According to the Heliopolis doctrine, he came from a line of important gods. His parents were Shu, the god of air, and Tefnut, the goddess of moisture, who were in turn the children of Atum.