[Bug 1046163] Re: Add config option for listing non-erasable packages

[Elan Ruusamäe]

echo rpm >> /etc/rpm/sysinfo/Requirename
echo poldek >> /etc/rpm/sysinfo/Requirename

works fine:

12:17:31 root[load: 0.01]@ppc rpm/sysinfo# chroot /pld  
12:17:56 root[]@ppc /# echo rpm >> /etc/rpm/sysinfo/Requirename
12:17:59 root[]@ppc /# echo poldek >> /etc/rpm/sysinfo/Requirename
12:18:00 root[]@ppc /# poldek -e rpm
mark rpm-4.5-56
Processing dependencies...
rpm-4.5-56 marks rpm-javaprov-4.5-56 (req rpm = 4.5-56)
rpm-4.5-56 marks rpm-utils-4.5-56 (req rpm = 4.5-56)
  rpm-utils-4.5-56 marks rpm-build-4.5-56 (req rpm-utils = 4.5-56)
    rpm-build-4.5-56 marks pld-builder-chroot-0.5.20120521-1 (req rpm-build)
    rpm-build-4.5-56 marks rpm-build-tools-4.5-6 (req rpm-build)
rpm-4.5-56 marks poldek-0.30-1.rc3.2 (req rpm >= 4.5-49)
rpm-4.5-56 marks rpm-perlprov-4.5-56 (req rpm = 4.5-56)
rpm-4.5-56 marks rpm-php-pearprov-4.5-56 (req rpm = 4.5-56)
rpm-4.5-56 marks rpm-pythonprov-4.5-56 (req rpm = 4.5-56)
There are 10 packages to remove (9 marked by dependencies):
R rpm-4.5-56
D pld-builder-chroot-0.5.20120521-1  poldek-0.30-1.rc3.2  rpm-build-4.5-56  rpm-build-tools-4.5-6  rpm-javaprov-4.5-56  
D rpm-perlprov-4.5-56  rpm-php-pearprov-4.5-56  rpm-pythonprov-4.5-56  rpm-utils-4.5-56
This operation will free 1.8MB of disk space.
Proceed? [N/y] y
Running rpm --erase --root / --noorder...
error: Failed dependencies:
        poldek is needed by transaction dependencies
        rpm is needed by transaction dependencies
12:18:11 root[]@ppc /#

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https://bugs.launchpad.net/bugs/1046163

Title:
  Add config option for listing non-erasable packages

Status in poldek:
  New
Status in PLD Linux Distribution:
  New

Bug description:
  I just shoot myself in the foot twice today while uninstalling some libraries on PLD builders.
  Poldek happily allowed and carried out uninstalation of rpm and itself.
  Please add an option for listing essential, non-erasable packages - something like "hold" for upgrades.

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