...

I have a mail server (Qmail) and just tried to install mdadm to monitor the raid arrays via Yum and it tried to install exim. Is this correct? I guess that it is looking for an MTA so why is it not finding Qmail (linked to /usr/lib/sendmail). One possibility is that I used yum to actually uninstall sendmail, but installed qmail from source as it needed patching.

It won't find qmail because qmail isn't in the rpm database, so yes... mdadm is doing the right thing by trying to install a mailer. It's linked as a dependency to notify admins if an array has issues.

...

Any way out of this apart from installing mdadm from an rpm with no deps/

a bit late on the reply, but to solve this kind of thing you can build your own RPM that does not contain any files but does resolve the dependency.

I've attached a spec file that i did for this that satisfies the dependency "java". You should be able to modify it for your needs.

danno -- Dan Pritts, System Administrator Internet2 office: +1-734-352-4953 | mobile: +1-734-834-7224