On 03/04/2016 12:44 PM, Rick Stevens wrote:
On 03/04/2016 11:28 AM, Tim wrote:
Allegedly, on or about 03 March 2016, jd1008 sent:
I have a 4tb hfsplus partition.
Mounting and writing to it present no problems.
However
1. sync command hangs
Educated guess... file system fault? Is there a file system check
program for that particular filing system.
Hanging sync sounds like it's not finishing updating the filesystem (the
original write seemed to work, because it didn't actually write and
complete when you thought it did, it's gone into cache, you're returned
to carry on doing other things, and syncing would be the next step in
the background (though it would try to do it, some time after the write,
before you tried manually syncing).
Though, another thought is - would there be anything else with a grip on
the mount point, that's not letting go?
2. umount of any hfsplus partion, hangs.
3. reboot hangs (it never reboots, forcing me to use the hard reset)
4. shutdown now hangs requires hard reset.
5. using the gui system -> shutdown ->
[shutdown|restart|suspend|hibernate]
hang forever, thus also requiring hard reset.
All of those would be failing for the same reason - trying to sync a
file system before it shuts down, and it'll wait until the sync
finished, or perhaps for a lengthy timeout.
I'd agree with this. HFS+ is a journaled filesystem. Support for the
journaling is fairly new to Linux and there may be some oopsies. In the
past it wasn't even writable under Linux--you had to disable journaling
on the filesystem on a Mac, then you could mount it RW on Linux. That's
not the case now.
I'd suggest running fuser or lsof and see if there's something using
that drive before you try a shutdown or unmount.
Update:
I just inserted the drive (connected it to usb port) and got this in dmesg:
[10915.296084] hfsplus: Filesystem was not cleanly unmounted, running
fsck.hfsplus is recommended. mounting read-only.
The above message is due to yesterday's failure to umount.
I unmounted it (strange that it did not run fsck automagically), and ran
fsck.hfsplus and remounted, copied
some files to it, executed sync and all is now well.
So, I now must have totally overlooked the message in dmesg after
connecting the drive,
and proceeded to write to it without first unmounting it and running
fsck, and remounting it.
I wish that the user would get a visible banner about this. I did not
see it yesterday, as I assumed all was well.
Thanx to all who replied.
Cheers,
JD
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