From: nospam@needed.invalid   
      
   On Sun, 10/5/2025 5:45 PM, RobH wrote:   
      
   >   
   > Running df -h shows sda3 on the 250GB disk, as using 175Gb   
   > How can I find out why it is using so much space   
   >   
   > Thanks   
      
      [Picture]  Use "Download Original" for full resolution picture   
      
       https://i.postimg.cc/fL7MC8vT/Linux-Slash-qdirstat.gif   
      
   The picture shows two qdirstat sessions.   
      
   1) For the first part of the analysis, you only want your   
      slash partition mounted. Then when you do a   
      
      sudo apt install qdirstat   
      
      sudo qdirstat /   
      
      you are mostly scanning slash and not /media/mint/MYDATA   
      which is an optional partition I can mount (later).   
      
   2) In the second picture, I mount the MYDATA partition, then use   
      
      sudo qdirstat /media/mint/MYDATA   
      
      and the analysis is limited to my right-most partition only.   
      
   In the first picture at the top, the analysis of slash, shows silly me,   
   I left a 29GB kernel build in my home directory.   
      
   In the second picture, purely for illustration purposes,   
   my Linux kernel build is transferred to MYDATA (just to make an illustrative   
   mess).   
      
   In the second picture, you can see a rather large tar file,   
   which attracts my attention as a big green rectangle in the   
   display, and since the tar is a duplicate of the entire kernel   
   tree, I can just delete the file   
      
      rm /media/mint/MYDATA/tar.tar.gz    # Name, not all that original   
      
   The kernel build, has some fractional gigabyte files in it,   
   and they might be the next thing I would delete or compress.   
      
      Paul   
      
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