Date: Thu, 26 Jun 2014 16:28:57 +0200 From: Mathias Picker <Mathias.Picker@virtual-earth.de> To: Kevin Oberman <rkoberman@gmail.com> Cc: questions@freebsd.org Subject: Re: Cannot create files on exfat card / 10-stable Message-ID: <1403792937.2308.16.camel@marcopolo.fritz.box> In-Reply-To: <CAN6yY1sHvy0BM2XuSRroSPPXjGV4nR1w60sOg==Sbic72Tw4pQ@mail.gmail.com> References: <CAN6yY1sHvy0BM2XuSRroSPPXjGV4nR1w60sOg==Sbic72Tw4pQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Am Mittwoch, den 25.06.2014, 13:48 -0700 schrieb Kevin Oberman: > > Hi all, > > > > I just got my first exfat formatted sdxc card. > > > > If I mount it with (as root) mount.exfat /dev/da2s1 /mnt I can read the > > content, create *directories*, but *not files*??? > > > > > > root@marcopolo:/mnt # touch test1 > > touch: test1: Invalid argument > > root@marcopolo:/mnt # mkdir test1 > > root@marcopolo:/mnt # touch test1/test > > touch: test1/test: Invalid argument > > root@marcopolo:/mnt # ll -d test1 > > drwxr-xr-x 1 root wheel 131072 16 Feb 19:46 test1/ > > root@marcopolo:/mnt # ll test1 > > total 0 > > > > > > > > Shouldn't this work? > > > > I rebuilt fusefs-lib and fusefs-exfat with gcc48, same result... > > > > This is on a recent stable: > > marcopolo% uname -a > > FreeBSD marcopolo 10.0-STABLE FreeBSD 10.0-STABLE #14 r261827: Thu Feb > > 13 13:13:01 CET 2014 mathiasp@marcopolo:/usr/obj/usr/src/sys/GENERIC > > amd64 > > > > The card is a Sandisk Extreme MicroSDXC 64Gb. Works fine in my phone. > > > > Any tips, hints, experiences? > > > > Thanks, Mathias > > I have no answer as I found this message in the archive while > researching the root cause of the problem. > Thanks, first feedback, now I finally know it's not just me... > > Workaround: After writing to the device on FreeBSD, put the card into > a Windows system. (It will also be usable to write to the device.) > Open an explorer (not Internet Explorer) window > Right click on the ExFAT device > Select "Properties" > In the Properties window, select the "Tools" tab > > In the tools window click "Check now" > > In the disk check window click start > > No errors should be found, but the disk will now be writable on > Windows. Note that the directories you appeared to be creating on > FreeBSD will be gone. > > Eject the media and mount it on the FreeBSD system I t will be > writable until it is re-mounted. :) Interesting approach, I switched to FAT for now, works well enough for me... > > > I believe the problem is that unmounting the file system fails to mark > the fs as clean. You might notice that a message that the device was > not cleanly dismounted is printed to the console and messages when the > device is re-mounted on FreeBSD. There is no fsck for ExFAT, so I need > to use Windows to do the same job. > > > It looks like all that is needed is to clear the second bit of byte > 106 of the VBR (block 0). I will try this some day when I am feeling > brave. > > > I'd love to see this fixed Me too! But way over my head. Again, thanks for the feedback! Mathias > > -- > R. Kevin Oberman, Network Engineer, Retired > E-mail: rkoberman@gmail.com >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1403792937.2308.16.camel>