dpkg -i running in background after install

Question

My own dpkg not installing correctly. I run:

:~# dpkg -i foo-2.1-2.deb

when my package is done installing.

:~# ps aux | grep foo | grep -v grep

root      1718  2.2  1.4  10080  7308 ttyS0    S    11:59   0:03 dpkg -i foo-2.1-2.deb
root      1731  0.0  0.0   1720   496 ttyS0    S    11:59   0:00 /bin/sh /var/lib/dpkg/info/foo-2.1-2.postinst configure 2.1-2

I think my postinst script is not terminating correctly,

I'm missing something but don't know what.

Answer 1

I finally figured it out. One of my scripts called by postinst called /bin/bash which started a new shell that caused dpkg to run in the background and never finish.