asked 2014-09-25 01:10:40 +0300
I have a 64-bit SDXC card that is formatted to exFAT. When I got to reformat through Windows, the only option open to me is NTFS or exFAT, both of which I understand to be no good. I have tried to format the card through the phone itself with the following command.
mkfs.ext4 /dev/mmcblk1p1
Unfortunately I get this error.
permission denied while trying to determine filesystem size
Can someone help?
answered 2014-09-25 09:06:51 +0300
Your best bet to format it to fat32 would be this little software for windows http://en.softonic.com/s/gui-format-fat32-download
answered 2014-09-25 11:44:03 +0300
You can format the card as FAT32 still on Windows but only from the command prompt.
This article at wikihow explains... http://m.wikihow.com/Format-FAT32
Apart from the 4GB maximum file size FAT32 has the advantage of working pretty much anywhere.
answered 2015-06-20 07:31:08 +0300
exFAT FUSE drivers are now available on the openrepos (and thus through WareHouse) :
And I have myself compiled ntfs-3g
in my repo
answered 2015-06-20 08:33:28 +0300
Fuse is slow, fat doesn't support files >4gb. So your best bet is to use ext4 or btrfs. The command you used is good but permission denied means you tried it as nemo. Next time use devel-su to get root rights. :)
Asked: 2014-09-25 01:10:40 +0300
Seen: 982 times
Last updated: Jun 20 '15
Become root via
devel-sufirst, before issuing an mkfs command!See also "[How-to] Creating partitions on SD-card, optionally encrypted" for a comprehensive guide.
olf ( 2018-03-05 17:15:09 +0300 )edit