Jochen Schulz wrote:
Andrei Popescu:
at depends on mail-transport-agent provided by courier-mta. Just pick
your favorite and install it along with at like:
aptitude install at postfix
Or to get a list of all packages providing mail-transport-agent:
$ aptitude search ~Pmail-transport-agent
p bongoproject-mta - Integrated mail and calendar
p citadel-mta - complete and feature-rich
p courier-mta - Courier mail server - ESMTP
p esmtp-run - User configurable relay-only
p exim - An obsolete MTA (Mail
p exim4-daemon-heavy - Exim MTA (v4) daemon with
p exim4-daemon-light - lightweight Exim MTA (v4)
p masqmail - A mailer for hosts without
p msmtp-mta - light SMTP client with support
p nbsmtp - Simple MTA to send your mails
p nullmailer - simple relay-only mail
i postfix - High-performance mail
p sendmail-bin - powerful, efficient, and
p smail - Electronic mail transport
p ssmtp - extremely simple MTA to get
p xmail - advanced, fast and reliable
(The list might look slightly different on your system.)
J.
Joost Witteveen wrote:
> On 28/03/2008, Brian <[EMAIL PROTECTED]> wrote:
>> Hi,
>> I am running an NSLU2 Slug, Debian Etch. Kernel=2.6.18-4-ixp4xx. I
>> installed AT and was very surprised to see that APT requires that
>> Courier Mail MTA is a prereq of AT.
>
> Me too.
> I've got at installed, and no courier:
> [EMAIL PROTECTED]:/tmp$ dpkg -l at
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
> ||/ Name Version Description
>
+++-==============-==============-============================================
> ii at 3.1.10 Delayed job execution and batch
processing
> [EMAIL PROTECTED]:/tmp$ dpkg -l courier\*
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
> ||/ Name Version Description
>
+++-==============-==============-============================================
> un courier-mta <none> (no description available)
>
>
>
>> I can understand that I will need an
>> MTA if I want AT to mail me infos about what it has done etc.
>> I am surprised that it requires a specific MTA.
>
> How did you find out it requires a specific MTA? I suppose it just
> piced one (why courier I don't know).
>
>> On the NSLU2 RAM is at a premium and I would prefer not to have all
>> these useless (for me ) processes hanging around all the time.
>
> Well, you don't have to actually run the MTA:). You can disable it in
> /etc/rc*.d/
> Or, I'm sure you can choose a different MTA.
>
>> How can I find out if and why courier MTA is really required?
>
> $ dpkg -s at
> will show you the dependencies of at, as will
> $ apt-cache showpkg at
>
> at depends on mail-transport-agent. To see what packages provide
> mail-transport-agent:
> $ mail-transport-agent
> (and look for the Reverse Provides:)
>
>> Would there be any danger in just overriding this prereq somehow to
>> allow the AT install without Courier?
>
> well, for the sanity of your system it'll be better to just install a
> different MTA, if you don't like courier, but do want at:
>
> # aptitude install at exim4-daemon-light
>
Joost, and all the others that answered:
Hi, thanks for the answers. I guess I need to dig deeper into apt and
dpkg. I deinstalled at and the courier packages then did (sorry that
some of it is in German, but you can see the packet names):
# apt-get install at
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut... Fertig
Die folgenden zusätzlichen Pakete werden installiert:
courier-authdaemon courier-authlib courier-authlib-userdb
courier-base courier-mta
So I installed what it suggested.
But, looking into the package I can see that it needs just an MTA, as
was described to me:
# apt-cache showpkg at
Package: at
Versions:
3.1.10(/var/lib/apt/lists/ftp.hosteurope.de_pub_linux_debian_dists_etch_main_binary-arm_Packages)(/var/lib/dpkg/status)
Reverse Depends:
mirror,at
lsb-core,at
gnome-schedule,at
gato,at
devscripts,at
Dependencies:
3.1.10 - libc6 (2 2.3.5-1) libpam0g (2 0.76) mail-transport-agent (0
(null)) lsb-base (2 3.0-10)
Provides:
3.1.10 -
Reverse Provides:
As suggested I tried the following:
# apt-get install at exim4-daemon-light
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut... Fertig
Die folgenden zusätzlichen Pakete werden installiert:
courier-authdaemon courier-authlib courier-authlib-userdb
courier-base exim4-base exim4-config
Vorgeschlagene Pakete:
eximon4 exim4-doc-html exim4-doc-info gnutls-bin openssl
libmail-spf-query-perl
Die folgenden NEUEN Pakete werden installiert:
at courier-authdaemon courier-authlib courier-authlib-userdb
courier-base exim4-base exim4-config exim4-daemon-light
So apt-get wanted to install courier and exim4!
Then tried:
aptitude install at exim4-daemon-light
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut... Fertig
Lese erweiterte Statusinformationen
Initialisiere Paketstatus... Fertig
Lese Task-Beschreibungen... Fertig
Erzeuge Tag-Datenbank... Fertig
Die folgenden NEUEN Pakete werden zusätzlich automatisch installiert:
exim4-base exim4-config
That seemed to work, but with errors as exim etc. needs some
configuration. But that has solved the dependency problem as far as I
can see.
So thanks very much for the tips.
Cheers Brian
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