KDiskFree gets it wrong with Logical Volumes

GTrax · 10-17-2007, 04:57 PM

Hi All
I recently added a new 500GB SATA drive. I tried LVM on Debian for the first time, creating a volume group called "system" All went well, exactly as in the manuals, and now I have part of the space as my first logical volume /dev/system/lv1.
Then I created /mnt/lv1, and I added the line to /etc/fstab ..

Code:

/dev/system/lv1  /mnt/lv1  ext3  noauto,noatime,users,exec  0  0

(Yes - there may be better/wiser ways-do tell!)
After making its owner and group me, the user, it works! It shows up in Konqueror file manager, and I can copy stuff into it in the normal way, BUT ..
KDiskFree, the storage space viewing utility that comes with KDE does display the new (lv1), but lists both the 'Size' and the 'Full %' as 'N/A', and the amount 'Free' as '0B'

Did I miss something - or is it just that KDiskFree cannot handle logical volumes?

JZL240I-U · 11-09-2007, 03:22 AM

Sorry for answering this late, but...

Well. On my system it says:

Code:

...
name                    type  size   mountpoint  free
/dev/mapper/system-home   ?  4,9 GB      /home   4,2
...
/dev/system/home         ext3  N/A       /home   0 B
...

So the information is there but there are two entries for each volume.

Look into "settings" of KDiskFree and make sure that all "visible" buttons are checked. Please post any result here.

GTrax · 11-09-2007, 03:34 PM

My thanks for your reply.
First I see..

Code:

  Device           Type   Size   Mount Point  Free  Full%   Usage
/dev/system/lv1    ext3   N/A   /mnt/lv1      0B    N/A   [green bar]

Then, after right-click -> Mount Device, an new Konqueror window opens with it mounted. Its just like yours. I just had not noticed a completely new green bar appears, because it chooses to arrive several lines above, right in the middle of of the plethora of other partitions I wanted to 'clean up' by adopting LVM in the first place.

Leaving out the others, I also end up with two lines, like this ..

Code:

  Device                 Type   Size      Mount Point   Free     Full%    Usage
/dev/system/lv1          ext3   N/A       /mnt/lv1       0B      N/A     [green bar]
/dev/mapper/system-lv1    ?     246.1GB   /mnt/lv1      43.1GB   82.5%   [green bar]

I created a volume group called 'system'.
I don't remember anything about 'mapper', but I see it appears in yours as well.

Thats OK - Now that I know what it does, I can live it.

JZL240I-U · 11-12-2007, 01:10 AM

Umm, didn't try it myself but found it just the other minute in this thread:
http://www.linuxquestions.org/questi...tition-598217/

Code:

man dmsetup

I'm not sure but I think KDiskFree can't see unmounted devices (like floppy and CD). Btw. did you try the settings menu of KDiskFree to make sure everything is enabled?