BitJam wrote:@namida12, the hidden .fuse file is a copy of a file you deleted/moved while another process still had it open. This will happen with file systems mounted via fuse (filesystem in userspace), most likely NTFS. I imagine the other process that had the file open was tumbler. For more about this problem with tumber see
this thread.
I am trying to move files from sda1 to /media/backup-2013 (a USB 2.0 external drive), and it has continued to lock up/freeze with 400 Gigs free on the external drive.
This symptom would occur if you were mistakenly moving a lot of data to the LiveCD/USB root file system. All changes to that file system are stored in RAM so when you copy too much information into it, you run out of RAM and the system freezes up. When you reboot then all signs of this are gone. I'm not sure that is what happened but it is a simple explanation. This could also happen if you copied a bunch of files to a file system that is mounted as tmpfs (which stores the entire filesystem in RAM).
In the future you can run the following in a terminal window:
where $DIRECTORY is where you plan to copy files. This will tell you what the underlying file system is for that directory. If it tells you the underlying filesystem is "/live/aufs" then you don't want to fill it with files.
Also, you can monitor how much RAM is being used for the root file system with either one of these commands:
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$ df -h /live/aufs-ram
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.2G 1.7M 1.2G 1% /live/aufs-ram
This shows you how much RAM is being used by the file system and how much is theoretically available although you may run out of RAM before that limit is reached.
The other command is simply
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$ free -m
total used free shared buffers cached
Mem: 1516 144 1371 0 0 47
-/+ buffers/cache: 96 1419
Swap: 0 0 0
With the -m flag all sizes are in megabytes. The number you are interested is in the "cached" column. Among other things, this number includes all of the RAM used by the LiveCD/USB root file system and all tmpfs file systems. Most programs that monitor memory usages *ignore* the RAM that is used as cache assuming the system can reclaim that memory when it is needed. On a LiveCD/USB (or any system that stores a significant amount of data on tmpfs) this is a very bad assumption. So if you copy a bunch of files to the root file system of a LiveCD/USB you may end up running out of memory with little warning. The 47 meg in the "free" command output is larger than the 1.7M in the "df" output because the "free" output includes all other forms of cached data.
Quote: "This symptom would occur if you were mistakenly moving a lot of data to the LiveCD/USB root file system."
Would this be correct?
I was trying to copy files from a hard drive 130 gig sda1 formatted as ext3, and only holding data to a 1 Gig external hard drive " /media/backup-2013 formatted as ect4" not to a usb flash drive. Not a NTFS formatted hard drive.
All the problems started when the .fuse file appeared. I could not delete, copy or move the .fuse hidden file, but after renaming the file, I then copied it to the external drive and once there I was able to delete it easily in both drives. But could not shut down the system, I ended up shutting down the computer holding the power button for 5 seconds, walked away for a few minutes with system powered down. Later restarted the live media, and then was able to continue copying the files, to the external hard drive, once the hidden fuse file was deleted on both hard drives.
Maybe this was another instance of the tumber bug. But i do not have a record of what happened, and do not want to try and recreate the problem. The 120 Gig hard drive was recycled using dban to make certain it was not easily read, and that drive is powering another AntiX operating system as a replacement for a malware infected WinXP owner, that has been converted to Linux. She is delighted, and she was playing a Facebook game when i left her on her own.
One machine at a time, as WinXP get closer to its end of life... I was hesitant to use MX-14, and decided on AntiX, but really think MX-14 is going to be a good O/S for winXP users.
JR