[Bug 653362] Re: package mail-stack-delivery 1:1.2.12-1ubuntu7 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

[Clint Byrum]

Hello Col., Thank you for taking the time to file this bug report and
help us make Ubuntu better.

The error messages in DpkgTerminalLog.txt that show this failure are
here:

Selecting previously deselected package mail-stack-delivery.
Unpacking mail-stack-delivery (from .../mail-stack-delivery_1%3a1.2.12-1ubuntu7_all.deb) ...
/var/lib/dpkg/tmp.ci/preinst: 74: /etc/dovecot/conf.d/01-dovecot-postfix.conf: Permission denied
/var/lib/dpkg/tmp.ci/preinst: 74: /etc/dovecot/conf.d/01-dovecot-postfix.conf: Permission denied
/var/lib/dpkg/tmp.ci/preinst: 74: /etc/dovecot/auth.d/01-dovecot-postfix.auth: Permission denied
/var/lib/dpkg/tmp.ci/preinst: 74: /etc/dovecot/auth.d/01-dovecot-postfix.auth: Permission denied
rmdir: failed to remove `/var/backups/dovecot-postfix/': Directory not empty
dpkg: error processing /var/cache/apt/archives/mail-stack-delivery_1%3a1.2.12-1ubuntu7_all.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1

This file attempts to rename these files from dovecot-postfix to mail-
stack-delivery if they exist.

Is it possible that you have changed the permissions on the directory or
files that would cause these errors? Maybe /etc is mounted readonly? The
permission denied is odd because these scripts run as root.

I just tested upgrading Lucid -> Maverick with dovecot-postifx
installed, and it renamed the file without any errors.

Col, if you could please post the result of

ls -lR /etc/dovecot

That would help us determine whether or not the permissions have been
locally modified in a way that breaks the install script, or whether the
install scripts need to be changed.

Marking Incomplete pending respond from Col. Sood.

** Changed in: dovecot (Ubuntu)
       Status: New => Incomplete

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package mail-stack-delivery 1:1.2.12-1ubuntu7 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
https://bugs.launchpad.net/bugs/653362
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