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Full Discussion: Iso - remaster script trying to start chroot run commands then exit but host system gets messed up
Top Forums UNIX for Beginners Questions & Answers Iso - remaster script trying to start chroot run commands then exit but host system gets messed up Post 303039788 by Corona688 on Tuesday 15th of October 2019 01:19:42 PM
Old 10-15-2019
Sorry, my morning coffee hadn't kicked in.

Your chroot commands get things ready for a chroot, but don't actually run chroot, so nothing ends up happening inside the chroot.

If you call chroot the way I show it
Code:
chroot /path/to/folder /path/to/shell < inputfile

...it ought to finish by itself when it hits end-of-file. Interactive commands may foul this up.

So,
Code:
chrootbeg
chroot /path/to/folder /path/to/shell < /path/to/inside-chroot-script
chrootend

 

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LEARN ABOUT DEBIAN

postfix-nochroot

postfix-nochroot(8)					      System Manager's Manual					       postfix-nochroot(8)

NAME

       postfix-nochroot - change /etc/postfix/master.cf to not use chroot

SYNOPSIS

       postfix-nochroot

DESCRIPTION

       Renames /etc/postfix/master.cf to /etc/postfix/master.cf.bak and creates a new /etc/postfix/master.cf file with every service configured to
       not use chroot.	Every modified line is commented.  It also restarts Postfix (to apply the change) and rmoves the unused chroot directories
       /var/spool/postfix/{etc,lib,usr} .

       Using a chroot environment makes upgrades more difficult and gets in the way when running SE Linux (without actually providing any security
       benefit in a SE Linux system).

SEE ALSO

       selinux(8),  sestatus(8),   selinuxenabled(1),	check-selinux-installation(8),	 selinux-config-enforcing(8),	selinux-policy-upgrade(8),
       http://wiki.debian.org/SELinux  - More about SELinux Debian install, http://etbe.coker.com.au/tag/selinux/ - Russell's SE Linux blog posts,
       http://etbe.coker.com.au/2008/08/02/postfix-and-chroot/ - post about this script.

AUTHOR

       This program and it's man page was written by Russell Coker <russell@coker.com.au> for the Debian system (but may be used by others).  Per-
       mission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-3.

															       postfix-nochroot(8)
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