Re: ssh deb not installing correctly

[Matthew Sayler <mpsayler@thewalrus.org>]

I remember back in '00 when Daniel Free wrote:
> I Just reinstalled my machine at home with debian 2.2 (potato) and started
> apt-get installing all the things i likeon my system, but when i got to ssh
> it returned the error below.
> 
> #### Begin Console Dump ####
> 
> 1 packages not fully installed or removed.
> Need to get 0B of archives. After unpacking 0B will be used.
> Setting up ssh (1.2.3-5) ...
> dpkg: error processing ssh (--configure):
>  subprocess post-installation script returned error exit status 10
> Errors were encountered while processing:
>  ssh
> E: Sub-process /usr/bin/dpkg returned an error code (1)
> 
> #### End Console Dump ####
> 
> the program itself has installed correctly and works however whenever i use
> apt-get it finishes with the above error.
> 
> any suggestions ??

I had the same problem installing ssh on one of my stripped down machines
that hadn't been updated for a few months.  There are a couple of problems
that my unexpert eyes found in the /var/lib/dpkg/info/ssh.postinst
script...

1) Apparently it tries to grab values from debconf that aren't defined
and this results in your error 10 being propgated up in the script

2) at the end there is db_stop command that just doesn't seem exist.
In another thread someone mentioned that this needs to be wrapped in
some sort of test..  I just hacked the script around to get it to stop
complaining. 

I attached the script that at least allowed me to get past the annoying
error.  As far as I can tell what I did is make ssh emulate the behavior
when debconf isn't installed.  It may format your drive or send a copy
of all your emails to fbi.gov for all I know..

Hope this helps?

Matt

-- 
/* Matt Sayler || sayler@thewalrus.org || http://www.thewalrus.org
   "RFC 882 put the dot in .com" -- Christian Bauernfeind */

#!/bin/sh -e

action="$1"
oldversion="$2"

if [ "$action" = configure ]
then
  if [ -f /etc/ssh/ssh_host_key ]
  then
    #check for old host_key files using IDEA, which openssh does not support
    ssh-keygen -p -N '' -f /etc/ssh/ssh_host_key 2>&1 | \
      grep -q 'unknown cipher' && {
      mv /etc/ssh/ssh_host_key /etc/ssh/ssh_host_key.old
      mv /etc/ssh/ssh_host_key.pub /etc/ssh/ssh_host_key.pub.old
    }
  fi

  [ -f /etc/ssh/ssh_host_key ] || (
    umask 022
    ssh-keygen -b 1024 -f /etc/ssh/ssh_host_key -N ''  >/dev/null
  )

  # get rid of mistaken rsh diversion (circa 1.2.27-1)
  if test -L /usr/bin/rsh &&
     dpkg-divert --list '/usr/bin/rsh.real/rsh' | grep -q ' ssh$'
  then
    test -L /usr/bin/rlogin && rm /usr/bin/rlogin
    dpkg-divert --package ssh --remove --rename \
        --divert /usr/bin/rsh.real/rlogin /usr/bin/rlogin
    test -L /usr/bin/rsh && rm /usr/bin/rsh
    dpkg-divert --package ssh --remove --rename \
        --divert /usr/bin/rsh.real/rsh /usr/bin/rsh
    test -L /usr/bin/rcp && rm /usr/bin/rcp
    dpkg-divert --package ssh --remove --rename \
        --divert /usr/bin/rsh.real/rcp /usr/bin/rcp
    test -L /usr/man/man1/rlogin.1.gz && rm /usr/man/man1/rlogin.1.gz
    dpkg-divert --package ssh --remove --rename \
        --divert  /usr/man/man1/rlogin.real.1.gz /usr/man/man1/rlogin.1.gz
    test -L /usr/man/man1/rsh.1.gz && rm /usr/man/man1/rsh.1.gz
    dpkg-divert --package ssh --remove --rename \
        --divert /usr/man/man1/rsh.real.1.gz /usr/man/man1/rsh.1.gz
    test -L /usr/man/man1/rcp.1.gz && rm /usr/man/man1/rcp.1.gz
    dpkg-divert --package ssh --remove --rename \
        --divert /usr/man/man1/rcp.real.1.gz /usr/man/man1/rcp.1.gz
    rmdir /usr/bin/rsh.real
  fi
fi

# sort out whether we're installing ssh suid
RET=false
# mps comment to get around debconf bug??
#test -e /usr/share/debconf/confmodule && {
  #. /usr/share/debconf/confmodule
  #db_version 2.0
  #db_get ssh/SUID_client
#}
if [ "$RET" = "true" ]; then
  ssh_mod=04755
else
  ssh_mod=0755
fi

RET=true
#test -e /usr/share/debconf/confmodule && {
  #db_get ssh/run_sshd
#}
if [ "$RET" = "true" ]; then
  test -f /etc/ssh/sshd_not_to_be_run && rm -f /etc/ssh/sshd_not_to_be_run
else
  touch /etc/ssh/sshd_not_to_be_run
fi

if command -v suidregister >/dev/null 2>&1 && [ -e /etc/suid.conf ]; then
        suidregister -s ssh /usr/bin/ssh root root $ssh_mod
elif [ -e /usr/bin/ssh ]; then
        chown root.root /usr/bin/ssh
        chmod $ssh_mod /usr/bin/ssh
fi

# Automatically added by dh_installdocs
if [ "$1" = "configure" ]; then
	if [ -d /usr/doc -a ! -e /usr/doc/ssh -a -d /usr/share/doc/ssh ]; then
		ln -sf ../share/doc/ssh /usr/doc/ssh
	fi
fi
# End automatically added section
# Automatically added by dh_installinit
update-rc.d ssh defaults >/dev/null
/etc/init.d/ssh start
# End automatically added section


#db_stop