[lmi-commits] [lmi] master 0221ad7 5/5: Add a script to install a centos chroot on a debian host

[Greg Chicares]

branch: master
commit 0221ad72c2f24c3a4e121eefa0451b6f5041ab04
Author: Gregory W. Chicares <address@hidden>
Commit: Gregory W. Chicares <address@hidden>

    Add a script to install a centos chroot on a debian host
    
    See:
      https://lists.nongnu.org/archive/html/lmi/2019-09/msg00021.html
      www.tt-solutions.com/en/articles/install_centos_in_debian_chroot
---
 install_centos.sh | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)

diff --git a/install_centos.sh b/install_centos.sh
new file mode 100755
index 0000000..c987660
--- /dev/null
+++ b/install_centos.sh
@@ -0,0 +1,89 @@
+#!/bin/sh
+
+# Create a chroot for centos-7.
+#
+# Copyright (C) 2019 Gregory W. Chicares.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+#
+# http://savannah.nongnu.org/projects/lmi
+# email: <address@hidden>
+# snail: Chicares, 186 Belle Woods Drive, Glastonbury CT 06033, USA
+
+set -evx
+
+stamp0=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+echo "Started: $stamp0"
+
+cat >/etc/schroot/chroot.d/centos7.conf <<EOF
+[centos7]
+description=centos-7.7
+directory=/srv/chroot/centos7
+users=greg
+groups=greg
+root-groups=root
+type=plain
+EOF
+
+apt-get update
+apt-get --assume-yes install schroot rinse
+rinse --arch amd64 --distribution centos-7 \
+  --directory /srv/chroot/centos7 \
+  --mirror http://mirror.net.cen.ct.gov/centos/7.7.1908/os/x86_64/Packages \
+
+cat >/srv/chroot/centos7/tmp/setup0.sh <<EOF
+#!/bin/sh
+set -evx
+
+# A _normal_ file /dev/null seems to be created automatically:
+#   -rw-r--r-- 1 root root    0 Oct  1 15:44 /dev/null
+# so it needs to be removed to create the pseudo-device.
+
+[ -c /dev/null ] || ( rm /dev/null; mknod /dev/null c 1 3)
+chmod 666 /dev/null
+[ -c /dev/ptmx ] || mknod /dev/ptmx c 5 2
+chmod 666 /dev/ptmx
+[ -d /dev/pts  ] || mkdir /dev/pts
+
+getent group greg || groupadd --gid=1000 greg
+getent passwd greg || useradd --gid=1000 --groups=greg --uid=1000 \
+  --create-home --shell=/bin/zsh \
+  --password="$(openssl passwd -1 expired)" greg
+
+mountpoint /dev/pts || mount -t devpts -o rw,nosuid,noexec,relatime,mode=600 
devpts /dev/pts
+mountpoint /proc    || mount -t proc -o rw,nosuid,nodev,noexec,relatime proc 
/proc
+
+yum --assumeyes install ncurses-term zsh
+chsh -s /bin/zsh greg
+
+yum --assumeyes install centos-release-scl
+yum-config-manager --enable rhel-server-rhscl-7-rpms
+yum --assumeyes install devtoolset-8 rh-git218
+
+# In order to use the tools on the three preceding lines, do:
+#   scl enable devtoolset-8 rh-git218 $SHELL
+# and then they'll be available in that environment.
+EOF
+
+chmod +x /srv/chroot/centos7/tmp/setup0.sh
+schroot --chroot=centos7 --user=root --directory=/tmp ./setup0.sh
+
+cp -a ~/.zshrc /srv/chroot/centos7/home/greg/.zshrc
+
+stamp1=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+echo "Finished: $stamp1"
+
+seconds=$(($(date '+%s' -d "$stamp1") - $(date '+%s' -d "$stamp0")))
+elapsed=$(date -u -d @"$seconds" +'%H:%M:%S')
+echo "Elapsed: $elapsed"