Root filesystem clean up procedure

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Root filesystem clean up procedure

Derived from a Fermin's message to the list 1

This is a description of the general procedure carried out to clean up a root_fs after upgrading/installing new packages.

In order to clean the filesystem two steps should be performed, in sequence:

  1. Start a virtual machine that uses the filesystem in direct mode (that is, using the directive <fylesystem type="direct"> with connection to Internet. Alternatively, you can mount it and chroot from host:
    • Clean the APT cache (after apt-get update, install, upgrade, etc. or whatever other APT operation)
    • apt-get clean
      
    • It is not exactly a clean up operation, but if the /lib/tls directory exists (it seems to be created sometimes during the upgrading of some packages) rename it to /lib/tls.disabled (removing previous existing /lib/tls.disabled directory) (*)
    • It is not exactly a clean up operation, but you should also edit and change the /etc/root_fs_tutorial-version file (*)
  2. "Outside" filesystem, supposing is mounted in /mnt/loop

  3.   cd /mnt/loop/var/cache/apt
      rm -f pkgcache.bin srcpkgcache.bin (**)
      cd /mnt/loop/tmp
      rm -rf *
      rm -f /mnt/loop/root/.bash_history
      cd /mnt
      umount /mnt/loop
    

(*) This step also can be done from "outside" filesystem

(**) And, in general, any other file, except the archive/ directory




test stuff to delete:

  1. "Inside" filesystem (I mean, using a running virtual machine that uses this filesystem as <fylesystem type="direct"> or mounting it and chrooting from host):
    • Clean the APT cache (after apt-get update, install, upgrade, etc. or whatever other APT operation)
apt-get clean
    • It is not exactly a clean up operation, but if the /lib/tls directory exists (it seems to be created sometimes during the upgrading of some packages) rename it to /lib/tls.disabled (removing previous existing /lib/tls.disabled directory) (*)
    • It is not exactly a clean up operation, but you should also edit and change the /etc/root_fs_tutorial-version file (*)
  1. "Outside" filesystem, supposing is mounted in /mnt/loop
  cd /mnt/loop/var/cache/apt
  rm -f pkgcache.bin srcpkgcache.bin (**)
  cd /mnt/loop/tmp
  rm -rf *
  rm -f /mnt/loop/root/.bash_history
  cd /mnt
  umount /mnt/loop



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