Hacking Cannot set archive bit to split NSP on Mac OSX

[jebediah]

After splitting a large NSP with splitNSP.py successfully, I tried the following chflags commands:

sudo chflags -R arch splitnspfolder.nsp
sudo chflags -R noarch splitnspfolder.nsp
sudo chflags arch splitnspfolder.nsp
sudo chflags noarch splitnspfolder.nsp

However, the folder is still not recognised as archive/file by Tinfoil and I am unable to install. Booting into Windows confirms the archive bit was not set.

I installed mtools to use mattrib, but I get the following error:

sudo mattrib +a SPLITFOLDER.nsp
Drive 'A:' not supported
Cannot initialize 'A:'

For the life of me I don't want to boot into Windows every time I split a large NSP, and I can't understand why we can't do that on OSX.