[Bug 656251] Re: package postfix (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

[James Page]

Error message from DpkgTerminalLog:

debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by
another process: Resource temporarily unavailable

dpkg: error processing /var/cache/apt/archives/postfix_2.7.0-1_amd64.deb
(--unpack):

 subprocess new pre-installation script returned error exit status 1

-- 
package postfix (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
https://bugs.launchpad.net/bugs/656251
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