i had installed ubuntu 21.10 and burned the iso to my hard disk using balena etcher, now i want to format the hard disk but I don't know how to plz help.
i downloaded the ubuntu 21.10 and saved in my laptops hard drive later burned it using balena etcher to my external 1tb hard drive. then I boot my laptop through the external hard drive and went with install ubuntu instead of try ubuntu, and at the end was stuck with a error ubi partman crashed...