"fsgetmountsource failed" After trying to boot into homebrew.

Tell me, what format is your SD card right now?

EDIT: Right-click on the SD card and select "Properties", then look at "File System".

 

You don't have the files in the right place.

 

Possibly. Doesn't have to mean that, though.

 

Ahhhh. Good ole fsgetmount source... My foe also.. So heres my experience. I self host my exploit. First time I set everything up no issues. Everything was fine. One day I decided that I was afraid of my WiiU accidentally updating, so I created a new small network with a WiFi router I had laying around. ( did not connect it to my internet WAN connection just local only) and connected the same PC that I had already been using (to load the exploit) for a month.
Turned on the WiiU went to the new book mark I had set up and then I start getting FSGETMOUNTSOURCE FAILED... WTF.. I figured OK my SD card must have just happened to take a crap. Put all my files on a new SD card and same thing, then a different SD card same thing again. So now 3 different SD cards and no luck. I switched my WiiU back over to its old Wifi router, put in the original SD card and Viola... IT WORKS AGAIN... What I found was every-time I would use my D-Link router the WiiU would Fail with this error... I had an extra Linksys router set that up and that one worked fine also.. There had to be some kind of setting with the D-Link router the WiiU doesn't like.
Also If the WiiU has trouble seeing your TABLET(weak signal too far from the console) or it has low battery you will get that error everytime.
For me it never ended up being the SD card or the Files On it... Have you tried a different website that hosts the exploit? IT MAY HELP

— Posts automatically merged - Please don't double post! —

Logan is right.. Sometimes this is just random

 

Try using a different SD card, or if you have a micro SD card try a different adapter. Also make sure you have all the files in the correct place.

 

You can also get that error if some dirt or dust gets into the sd card slot on the WiiU try blowing into the slot before you insert the sd card. It worked for me when I had that error.

 

i had the same error 3 days ago - blowing/ clenaning sd didn't work.
error occur after adding some games to sd and having 100 mb free space. i decided to free some more spac and it worked like a charm.

so imo you have not enough free space - delete some and it will be ok.

 

Like @Marko76 says give your wiiu's hole a good blowing, it might even get a nice thrill while your doing it and thank you for it, it usually works or try pushing your sd card in and out the slot a few times and then boot homebrew or as mentioned above you have something on your sd card that should not be there or something is in the wrong place. I advice if this may be the case then start again cause if your running anything 64GB and above then it can get very confusing as to where the culprete is especially if you have lots of VC games on there. Or it could just be down to the fact you have a very cheap nasty made sd card, no offence! if it was bought of ebay or Amazon or that nasty mymemory site, it probably is.

 

I also figured out if you don't have connected your gamepad to your Wii U, you get this error as well.

 

The reason it does that is because the console thinks you're running Mii Maker, which requires the Gamepad.

 

WOW! Moving closer to the console with the gamepad (I was at my computer desk) ACTUALLY WORKED! haha thanks!

 

I think this problem OP has is somewhat random. I got it with 3 different cards over the span of 6 months. It just..comes and goes.

 

Have had this issue all times i used an SDXC card (64gb / 128gb).
Used an SDHC (32gb) for the exploit and worked fine.