I just came home from a 3-week trip to find no programs in the recorded programs library. This caused some concern as I had a good number of programs when I left that should not have expired. My initial investigation showed that both the / and /myth partitions were full. I followed the instructions to clean out the mysql and mythtv logs to free up space on / but still no programs in the listing even though /myth is full. I tried repairing the database to no avail. Looking in the /myth/tv directory I see many "nuv" files corresponding to my program thumbnails but no associated "mpg" with the actual program. Performing "ls -l *.mpg" shows one 218GB file (the size of my /myth partition).

So, it seems like all my programs have been combined into one big mpg file. Is there any way to recover them or have I lost everything? I've searched this forum and Google but either no one has had this problem or I'm not using the right search terms. Help please!

I've had issues in the past with my disks being full and have just bitten the bullet.

being unable to log into the xwindow system because of too little disk space I've gone into the /myth/tv directory and removed files with the command line.

rm pornmovie.nuv pornmovie.mpg etc.

If you really want to try and salvage it, which I did once, you can hook up another drive, move the big file to it, delete it from /myth/tv then reboot and see what you get.

From there you have your 218G file on another drive you can mess with to try to recover the programs.

Just my two cents.

.nuv files are the old wrapper for .mpg files. Thumbnails end in .mpg.png.

Your likely culprit for / is in /var/log. However, start with a terminal and delete anything in /tmp if it's big (find out with "du -sh /tmp"). Then type "ls -lSrh /var/log". This lists all log files in order of size. You can also change the ls options to -lSrhR, which lists recursively. My disk fills frequently due to the many frontend errors, in /var/log/myth/mythfrontend.log. When you delete stuff in /tmp, you should restart the box (you'll have deleted some necessary files)

/myth will be your tv shows, of course. Go in and list by reverse file size (-lSrh) or reverse time (-lrth) and get rid of things manually. Your database is now broken, incidentally. You can prevent further damage by replacing the removed file with an empty placeholder, so that when the database is back up, it doesn't have a fit when it tries to delete a file that isn't there. You can do this by touching the filename you're deleting. E.G. "rm 1001_20070721180000.mpg && touch 1001_20070721180000.mpg". This will delete the actual file then create a blank replacement.

The database will need to be fixed after / has been brought down. Try a restart and it will tell you what tables failed and will give a hint on how to fix it (I can't remember offhand - I moved the log file to another filesystem to stop this problem). Nothing will work until you delete stuff.

The biggest problem is caused by / filling up. It screws up the database which is the centre of your system.

Good luck

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LinHES 7.4
Australian Dragon
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can you just delete the logs and touch to replace them with blanks, reboot and everything be fine??

yep, except you lose your log files.

Mike

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LinHES 7.4
Australian Dragon
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cool...thanks. I rarely use them because, in theory, things keep working unless I "improve" them

I didn't mean thumbnails precisely--since nuv files continue to be created long after I switched to recording entirely in mpg, I've always assumed the nuv files were the little preview videos shown when a program was selected in the media library.

I'm not having trouble figuring out which file is taking up space in /myth/tv either. It's the single 218GB mpg file that appeared there in place of my 218GB of individual shows. I'm just wondering how such a file came to be and if there's any hope of recovering my individual programming or if it's lost for good.

Anyone else have any ideas?

That's weird about the nuv files.

A single 218GB file sounds like trouble. If you don't know what it is and can't play it, I would be deleting it. I think it's more likely that your other shows were force-expired due to a 'rogue' tuner recording endlessly. The 218GB file is probably a recording and your recording would be gone.

Good luck.

Mike

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LinHES 7.4
Australian Dragon
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Dang, that seems to be the problem. It started recording a 30-minute program 5 days ago and never stopped, so we lost everything. Oh well, now I can convert the filesystem like I wanted without worrying about erasing everything

If you are not using a straight WinTV type card, .nuv files may be created if you are doing some kind of transcode after recording, do you have some kind of job set to run automatically?

Bruce S.

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I'm using a PVR 250 recording in MPEG mode and not running any transcode jobs after recording--just commercial flagging. As of yesterday I'm starting with a completely clean /myth partition and for every .mpg there's a corresponding small (35-50 bytes) .nuv. I'm not 100% sure but they seem to be created for live TV watching as well. I'll have to dig into the settings and be sure I have everything right.

They're there for compatibility with older utilities. They simply refer to the .mpg file and should get cleaned up with it.

I've posted a script to get rid of any orphans left behind, searching for cleanup_orphans.sh should find both that and the previous discussion of this topic.

Thanks, I'll take a look for it. That was really a secondary issue anyway...now I need to find out why my tuner went "rogue" and recorded 100 hours of a 30-minute program.

Hi,

What version of A series? Is there a specific reason to stay with the .nuv files? If not, may I suggest moving forward to at least R5C7, one tweak and it is very solid.

I had a fill up not long ago, kids fired up to watch tv but I didn't have any rf attached. After several hours of recording snow, /myth was full and that of course triggers /var/log/mythtv/mythtvbackend.log to be filled to any remaining space in the root partition. I simply echo " " > to the two overgrown files and continued on, no reboot required

It has been a "testing" of durability against a bunch of rug rats... so far KM has not been buckled under altho I did have to close up ~12 - 14 copies of tux-paint, 3 copies of kmahjonng, 1 copy of xmms & one xterm. I can't think of a better system for them to learn with

Mike