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relan / exfat

Free exFAT file system implementation
GNU General Public License v2.0
789 stars 179 forks source link

Mac to mount exFAT drives with custom block sizes? #144

Closed rivertim closed 4 years ago

rivertim commented 4 years ago

Mac OSX refuses to see/mount any volume that has been formatted with block/allocation sizes over 2mb. Will your project allow mounting of volumes with block sizes up o 32Mb? Thanks!

relan commented 4 years ago

Are you trying to create an FS with mkexfatfs from here and mount it with the macOS built-in driver? What errors does it report?

rivertim commented 4 years ago

Hey! I am creating exFat SD & CF cards for use with high-data rate raw video cameras. I format them in mac terminal like this: sudo newfs_exfat -b 4194304 -v NameIt /dev/disk3s3 The cards record fine in the camera. But Mac OSX cannot mount them in disk utility or command line. The maximum block size it will mount is 1048576 bytes - which is not big enough. Can your app help me?

relan commented 4 years ago

fuse-exfat supports clusters up to 32 MB. Try it.

rivertim commented 4 years ago

Oh great!! Many thanks – will do! :)

rivertim commented 4 years ago

Installed per instructions on Mac osx 10.14.4 Should disks now mount automatically? I tried

sudo mount.exfat-fuse /dev/disk3s1 ~/Desktop/folder

I get

-bash: mount.exfat-fuse: command not found

Drive remains unmounted. Have I done something wrong?

relan commented 4 years ago

Try to run mount.exfat-fuse from the source tree directory, where you ran make:

sudo ./fuse/mount.exfat-fuse /dev/disk3s1 ~/Desktop/folder
rivertim commented 4 years ago

No luck. I did this command: sudo ./fuse/mount.exfat-fuse /dev/disk3s1 ~/Desktop/folder gets: ./fuse/mount.exfat-fuse: command not found

If I just do cd ./fuse I get -bash: cd: ./fuse: No such file or directory ? :( I see I have the exfat folder in my home directory. Maybe it hasn't compiled?

relan commented 4 years ago

Please post the instructions you followed and the output they produced.

rivertim commented 4 years ago

Me being dumb. Sorry. I had to do the following to get into root user mode on terminal:

sudo -s

Then re-installed (perhaps not necessary) Ran:

./fuse/mount.exfat-fuse /dev/disk3 /Users/Me/Desktop/folder

The drive mounts!! This is seriously good. I've been searching the web for an answer to this for days!

Thank you so much for your app – and your patience! :)

relan commented 4 years ago

Are you able to read your files from the exFAT volume?

Automounting is not expected to work, I never figured out how it's implemented in macOS.

rivertim commented 4 years ago

Files copy to and from the mount with ease! :) Many thanks!