Liu, L. Alves, M.B. Arroyo, F.C. Citadini, J.F. Farias, R.H.A. Franco, J.G.R.S. Junqueira Leão, R. Marques, S.R. Neuenschwander, R.T. Oliveira, A.C.S. Resende, X.R. Rodrigues, A.R.D. Rodrigues, C. Rodrigues, F. Seraphim, R.M. de Sá, F.H. JACoW Publishing Geneva, Switzerland 2673-5490 978-3-95450-213-4 10.18429/JACoW-IPAC2020-MOVIR06 English 11-15 storage-ring MMI injection booster dipole Contribution to a conference proceedings 2020 2020-06 https://doi.org/10.18429/JACoW-IPAC2020-MOVIR06 https://jacow.org/ipac2020/papers/movir06.pdf Sirius is a 4th generation 3 GeV low emittance electron storage ring that is in final commissioning phase at the Brazilian Centre for Research in Energy and Materials (CNPEM) campus in Campinas, Brazil. Presently (April 2020) we have accumulated 15 mA of current, limited by vacuum, using a nonlinear kicker for injection. In this paper we report on the Sirius main commissioning results and main subsystems issues during installation and commissioning.