Root filesystem clean up procedure

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. "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 (*)
2. "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

(*) 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

1. • 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

  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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