Re: What is the best way to manage 3rd party debs?
- From: Aniruddha <mailing_list@xxxxxxxxx>
- Date: Tue, 12 Aug 2008 19:28:25 +0200
On Tue, 2008-08-12 at 12:52 -0400, Steve C. Lamb wrote:
On Tue, Aug 12, 2008 at 06:46:51PM +0200, Aniruddha wrote:
They can overwrite existing (core) system files and possibly cause other
harm.
No, they can't. Not without your expressed consent...
{grey@igbuntu:~} dpkg --force-help
dpkg forcing options - control behaviour when problems found:
warn but continue: --force-<thing>,<thing>,...
stop with error: --refuse-<thing>,<thing>,... | --no-force-<thing>,...
Forcing things:
all [!] Set all force options
downgrade [*] Replace a package with a lower version
configure-any Configure any package which may help this one
hold Process incidental packages even when on hold
bad-path PATH is missing important programs, problems likely
not-root Try to (de)install things even when not root
overwrite Overwrite a file from one package with another
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...if they could there would be no reason for dpkg to have
--force-overwrite.
Well, that's another discussion altogether. To give you an idea why I am
asking this here's an excerpt from "Debian system concepts and
techniques" from Martin Krafft:
checkinstall is limited in what it can do. To be precise, the packages it creates
can only install files, and checkinstall does not care where it installs them. You
can overwrite files in home directories with checkinstall, among other things. The
generated packages cannot modify files. If the installation routine modifies existing
files, they will be part of the generated package in their entirety. A horror scenario
occurs when an installation routine adds a user by modification of /etc/passwd,
which is subsequently included in the package. Installation of the package causes
/etc/passwd to be completely replaced, and the deinstallation of the package re-
moves the file, breaking the system in half.
Therefor I can imagine that debs not created by Debian devs can contain possible disastrous changes.
--
Regards,
Aniruddha
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- From: Aniruddha
- Re: What is the best way to manage 3rd party debs?
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