Hacking NAND Backup not moving

[HomebrewEnthusiast109876]

It's been a few hours and it hasn't moved from that spot, should I be concerned?

 

[szczuru]

Do a low level format of SD card or use another SD card. And make sure you have ~550MB of free space.

 

[Arras]

You can just hold the power if it hangs while creating a backup, worst case scenario is your SD becomes corrupt. (writing a backup to the Wii, on the other hand...) It sort of looks like you don't have enough free space, you need quite a bit.

 

[icebrg5]

It's been a few hours and it hasn't moved from that spot, should I be concerned?

After googling " bootmii short write to block" it seems the errors is caused by the sd card and bootmii not liking it.
Try another card or reformat the current card and try again.

You can google it for yourself and see responses people had.