Debian Bug report logs - #463905
PHP scripts fail after install of php5-common 5.2.5-2

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Cam Ellison <cam@ellisonpsychology.ca>

To: submit@bugs.debian.org

Subject: PHP scripts fail after install of php5-common 5.2.5-2

Date: Sun, 3 Feb 2008 20:35:26 -0800

Package: php5-common
Version: 5.2.5-2

After installation of php5-common_5.2.5-2_i386.deb, apache2 does not 
appear to recognize php scripts.  Browser pops up request to specify an 
application to open it.  Downgrading to php5-common_5.2.4-2+b1_i386.deb 
resolved the problem.  I have not tested php5-common_5.2.5-1_i386.deb - 
this is a production website, and it's in use at the moment.

This machine runs combined lenny/sid, kernel 2.6.23, and 
apache2-mpm-prefork version 2.2.8


-- 
Cam Ellison  Ph.D.  R.Psych. #01417

Cam Ellison & Associates Ltd.
Management Psychology

3446 Beach Avenue
Roberts Creek  BC  V0N 2W2

Phone: 604.885.4806
Fax:   604.885.4809
Cell:  604.989.0635

Message #10 received at 463905@bugs.debian.org (full text, mbox, reply):

From: Steve Langasek <vorlon@debian.org>

To: cam@ellisonpsychology.ca, 463905@bugs.debian.org

Subject: Re: [php-maint] Bug#463905: PHP scripts fail after install of php5-common 5.2.5-2

Date: Sun, 3 Feb 2008 20:44:06 -0800

On Sun, Feb 03, 2008 at 08:35:26PM -0800, Cam Ellison wrote:
> Package: php5-common
> Version: 5.2.5-2

> After installation of php5-common_5.2.5-2_i386.deb, apache2 does not 
> appear to recognize php scripts.  Browser pops up request to specify an 
> application to open it.  Downgrading to php5-common_5.2.4-2+b1_i386.deb 
> resolved the problem.  I have not tested php5-common_5.2.5-1_i386.deb - 
> this is a production website, and it's in use at the moment.

> This machine runs combined lenny/sid, kernel 2.6.23, and 
> apache2-mpm-prefork version 2.2.8

The php5-common package has nothing to do with apache2.  Which version of
libapache2-mod-php5 is available according to 'apt-cache policy
libapache2-mod-php5'?

If you're pulling from an out-of-date mirror, then installing the newest
php5-common could leave libapache2-mod-php5 uninstallable.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek@ubuntu.com                                     vorlon@debian.org

Message #15 received at 463905@bugs.debian.org (full text, mbox, reply):

From: Steve Langasek <vorlon@debian.org>

To: Cam Ellison <cam@ellisonpsychology.ca>, 463905@bugs.debian.org

Subject: Re: [php-maint] Bug#463905: PHP scripts fail after install of php5-common 5.2.5-2

Date: Sun, 3 Feb 2008 22:27:39 -0800

reassign 463905 libapache2-mod-php5
forcemerge 463905 463906
thanks

Please keep the bug number cc:ed on replies.

On Sun, Feb 03, 2008 at 09:22:29PM -0800, Cam Ellison wrote:
> > The php5-common package has nothing to do with apache2.  Which
> > version of libapache2-mod-php5 is available according to 'apt-cache
> > policy libapache2-mod-php5'?

> This:
> libapache2-mod-php5:
>   Installed: 5.2.5-1
>   Candidate: 5.2.5-2

Er, then that's a problem since you said you did *not* try php5-common
5.2.5-1, and libapache2-mod-php5 depends on php5-common of the same version.
You seem to be doing something quite unsupported with the packages.

And this would explain why php5 was not enabled in apache2, because
libapache2-mod-php5 cannot be in an installed state if there's a version
mismatch between libapache2-mod-php5 and php5-common; and before it's in
state "installed", the module is not enabled for apache2's use (this is done
in the libapache2-mod-php5 postinst).

> I just filed a bug report against libapache2-mod-php5 version 5.2.5-2, 
> erroneously as it turns out - it should have been against 5.2.5-1.  It 
> does not seem to install php5.conf nor php5.load 
> into /etc/apache2/mods-available.  It does install libphp5.so.

I think these two bug reports should be merged.  There is at most one bug
here - and more likely zero bugs.

> What do you suggest?  Should I try to install libapach2-mod-php5 version 
> 5.2.5-2 via dpkg and see what that does?  I'm hesitant to try that 
> while I have someone trying to use the system.

You should probably stick to using apt-get/aptitude for installing the
packages, since that will check things like the versioned package
dependencies ahead of time and guard against things like accidentally
deconfiguring libapache2-mod-php5 when installing php5-common, which is what
it looks like happened here.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek@ubuntu.com                                     vorlon@debian.org

Message #24 received at 463905@bugs.debian.org (full text, mbox, reply):

From: Steve Langasek <vorlon@debian.org>

To: Cam Ellison <cam@ellisonpsychology.ca>, 463905@bugs.debian.org

Subject: Re: [php-maint] Bug#463905: PHP scripts fail after install of php5-common 5.2.5-2

Date: Mon, 4 Feb 2008 23:09:17 -0800

On Mon, Feb 04, 2008 at 07:36:37AM -0800, Cam Ellison wrote:

> > Er, then that's a problem since you said you did *not* try
> > php5-common 5.2.5-1, and libapache2-mod-php5 depends on php5-common
> > of the same version. You seem to be doing something quite unsupported
> > with the packages.

> Actually, using apt-get there was php5-common version 5.2.5-2 and 
> libapache2-mod-php5 version 5.2.5-1.  I ran apt-get install with other 
> packages after installing this version of php5-common, with no errors.  
> I ran apt-get install with selected packages instead of apt-get upgrade 
> in order to avoid those packages with bugs.

I would like to see an apt log of this (/var/log/apt/term.log).  apt should
never behave this way, it should honor the dependencies declared by the
packages; and clearly dpkg *did* honor them, or else the libapache2-mod-php5
package would have been (wrongly) configured and you wouldn't have had any
problems.

> > And this would explain why php5 was not enabled in apache2, because
> > libapache2-mod-php5 cannot be in an installed state if there's a
> > version mismatch between libapache2-mod-php5 and php5-common; and
> > before it's in state "installed", the module is not enabled for
> > apache2's use (this is done in the libapache2-mod-php5 postinst).

> I understand this, but why would there not be a warning and refusal to 
> continue, or inclusion of libapache2-mod-php5 version 5.2.5-2 in the 
> install process?  It was only after the error came up and I went 
> searching for reasons that I discovered the .conf and .load files were 
> missing.

I don't know.  The apt log should show this.

> What I didn't include with the previous message was this attempt, which 
> I made after I found that php5 wasn't working, and before I discovered 
> that php5.conf and php5.load were not present:

>  $ dpkg -i libapache2-mod-php5_5.2.5-1_i386.deb
> dpkg - warning: downgrading libapache2-mod-php5 from 5.2.5-2 to 5.2.5-1.
> (Reading database ... 202474 files and directories currently installed.)
> Preparing to replace libapache2-mod-php5 5.2.5-2 (using 
> libapache2-mod-php5_5.2.5-1_i386.deb) ...
> Unpacking replacement libapache2-mod-php5 ...
> dpkg: dependency problems prevent configuration of libapache2-mod-php5:
>  libapache2-mod-php5 depends on php5-common (= 5.2.5-1); however:
>   Version of php5-common on system is 5.2.5-2.
> dpkg: error processing libapache2-mod-php5 (--install):
>  dependency problems - leaving unconfigured
> Errors were encountered while processing:
>  libapache2-mod-php5

> Would the existing php5.conf and php5.load have been removed by dpkg, 
> even though it was refusing to configure?  

No, the conffiles in /etc/apache2/mods-available/ would remain intact.  The
symlinks under /etc/apache2/mods-*enabled*/, however, *would* be removed
during the upgrade, and would only be restorted once libapache2-mod-php5 is
configured.

> Regardless, this does not explain why php5 was not working with version 
> 5.2.5-2 of php5-common, but does work with the earlier version.

If there was a warning message you overlooked indicating that
libapache2-mod-php5 was going to be auto-deconfigured, or if apt had failed
to display this warning, that would explain all of your symptoms.

I can't reproduce any of these problems here, though, short of forcing
libapache2-mod-php5 into a state of broken dependencies.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek@ubuntu.com                                     vorlon@debian.org

Message #31 received at 463905-done@bugs.debian.org (full text, mbox, reply):

From: Ondřej Surý <ondrej@sury.org>

To: 463905-done@bugs.debian.org

Subject: #463905: PHP scripts fail after install of php5-common 5.2.5-2

Date: Tue, 12 Jan 2010 08:46:12 +0100

Version: 5.2.6.dfsg.1-1+lenny3

Looks more like a messing with apt/dpkg than bug in php5.
Marking as fixed in current stable.

-- 
Ondřej Surý <ondrej@sury.org>
http://blog.rfc1925.org/

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