Regarding: Moving Data_Dir on Linux Ubuntu 10.04 v BOINC 6.10.58
http://boinc.berkeley.edu/dev/forum_thread.php?id=6144

I'm on 10.04 and 6.12.33 and I'm speaking of /var/lib/boinc-client of course.
With all the traffic BOINC and the applications are producing I thought setting checkpoints should do the trick. But it does nothing. So I thought it would be common sense to move it to an HDD. Since I found so little information I don't know if it really is important. I wanted to do it anyway but I have my problems with it:

The hints from Sekerob didn't work at all for me. Changes to

/etc/boinc-client/cc_config.xml (<data_dir></data_dir> in options)
/etc/default/boinc-client (BOINC_DIR="")
/etc/init.d/boinc-client (BOINC_DIR=)

did nothing but a broken connection with boinc-manager. Reinstalling BOINC it still saved the data in /var/lib/boinc-client ...

To whynot's guide:
If I'd known that a simple 'cp -a' is mightier than a 'rsync -whtsname' I would have saved me some time ...
Since there is already a '--bind' I thought it wouldn't hurt to mount the directory in another directory.

mount --bind /media/Harddisk/boinc-client /var/lib/boinc-client

After some problems I got BOINC connected to its client, but SETI now says "Download failed" while Rosetta gives me a "Computation error".
My LTD is -4.11 possibly cause I'm producing so much junk ...

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My reasons to participate in grid computing:
1. I'm using true renewable energy (German accreditation; no certificate purchasing)
2. Production and disposal (will) amount to about 95% of the energy "used" during the lifetime of my PC
3. Helping

I couldn't complete it successfully with a version installed from the packet manager.
I could only get it to work with a manual install:

sh ./boinc_...-pc-linux-gnu.sh

in an own partition and an edit in /etc/default/boinc-client.

(German guide)

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My reasons to participate in grid computing:
1. I'm using true renewable energy (German accreditation; no certificate purchasing)
2. Production and disposal (will) amount to about 95% of the energy "used" during the lifetime of my PC
3. Helping