deanxxczx said:
Ive installed BootMii, Homebrew Channel and DVDx thing.
Can i now delete the stuff that was on the SD card? so i can put homebrew apps on?
yes you can but a better idea would be make a folder on your computer and copy everything off the mem card into the folder for later re use if you have a problem then bootmii config is all set to go by copying it back!
first thing to do is make a NAND backup if you installed bootmii to your boot2
this is where if you only have one SD card it gets tricky make sure you have made a copy of your install files as mentioned above to your computer then proceed with the NAND backup it may prompt to wipe your mem card to back the nand up to the current SD card when using the bootmii interface to do the backup
once you have a backup copy this to the computer too off the sd card then your free to format the mem card as you ..
a) have a nand backup just in case and b) your bootmii config is also safe