This weekend, I installed Debian Squeeze on my server. I've formatted all the hard disks to EXT4, and I'm using kernel version 2.6.32-686-bigmem.
When I tried to install the program saidar, it surprised me why it does not show my hard drives under 'mountpoint' (http://peecee.dk/upload/view/291851 <-- Saidar screenshot) as I could when I ran with Debian Lenny with the same kernel, but where the hard drives were formatted in EXT3. My laptop which has Ubuntu 10.04 as OS and the hard drive is formatted in EXT4 can easily show the hard drive in saidar.
I also tried to install PHP SysInfo on the Debian computer, but it does not bother to show anything on the hard disks

I tried to check fstab file and I can see that Debian uses UUID to identify the hard drives, but I've tried to change it to something with /dev/sdx, but it did not help either. http://pastebin.com/wZJ9WGn9 (fstab file)

I know that Debian squeeze is very new, but it would be nice if something could give me a hint what might be wrong, because I am a little tired of all time to use 'du-hs' command To find out how much space is spent on the various drives, since the command is a little slow, since hard disks are well filled

Are all drives mounted?

What does "df -h" show?

I got this output when I ran the command as non-root user (screenshot in the attached file):

Filsystem Size Used Avail Use% Monteret på
/dev/sda1 908G 330G 533G 39% /
tmpfs 2,0G 0 2,0G 0% /lib/init/rw
udev 2,0G 168K 2,0G 1% /dev
tmpfs 2,0G 0 2,0G 0% /dev/shm
/dev/sdb1 917G 392G 479G 45% /media/data1
/dev/sdd1 1,8T 857G 884G 50% /media/data2
/dev/sdc1 1,8T 1,2T 587G 67% /media/data3

HDDtemp and "fdisk -l" can see the hard drives ( see attached file ) so I wonder why I can not see the free space

Attached Thumbnails

 

So your problem is that saidar is not showing all your disks' space usage?

What version saidar is installed? And what version on the Ubuntu machine?

I use version 0.16-0.1 but the php-based phpsysinfo Nor will show used and available space on hard disks (see attached file).

I only used the conky in Ubuntu, but now I've tried installing saidar on Ubuntu computer, and it can not prove anything. It is just conky in Ubuntu, which could see the vacant space

This means that both saidar on Ubuntu and Debian, it is wrong with. Conky in Ubuntu works.

It is guaranteed a saidar only problem, but I do not understand why PHPsysinfo Nor will show the free and used space.

Attached Thumbnails

 

It was a problem related to Saidar. Other people has the with Saidar too.
I installed Discus which can provide information about disk space.