I backed up my switch on 4.1.0 many months ago and it compressed to about 10GB. I was attempting to shrink it by using HacDiscMount (following a similar route to Raj's updating without burning fuses guide) to delete my user content and system. I realized that I had to wipe each partition as well since the data does not get zero'd out (leading to good compression). I have tried using windows format (slow, not quick format) and used HxD to examine the USER and SYSTEM partition, they both seem fully zero'd out except the headers that windows adds for formatting. Doing a compression at this point was even worse than before, I could not finish the actual compression since I ran out of hard drive space but it was way larger than expected since it should be fully wiped, (expecting 500mb from other reports). When I examine the whole rawnand.bin with HxD, it is filled with data and only a small portion of it is zero'd out which is odd since USER is the biggest partition and it was confirmed to be zero when it was mounted. What am I doing wrong?
Last edited by cleeezzz,