sudo mkdir /var/tmp/zzol9

 

sudo rpm --root=/var/tmp/zzol9/ --import -D '_db_backend sqlite' /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle

#tree zzol9/

 

// do the business install a minimal install, enough to run the dnf installer

sudo dnf --releasever=9 --installroot=/var/tmp/zzol9 install oraclelinux-release-el9 dnf rpm nano dnf-plugins-core glibc-langpack-en --nogpgcheck \

 --nodocs --setopt=module_platform_id=platform:el9 --repofrompath=mga8rel,https://yum.oracle.com/repo/OracleLinux/OL9/baseos/latest/x86_64/  \

  --disablerepo=* --enablerepo=mga8rel --exclude=gnome*

 

cd

mkdir tmpstrap && cd $_

 

cat >> schroot.sh<<EOL

#!/bin/sh

 

PATH=$PATH:/sbin:/usr/sbin

 

# /var/cache/pbuilder

RT=/var/tmp/${1-"zzol9"}

 

echo "rt=$RT"

 

# below for partitioned block device

#mount $VM $RT -o offset=1048576

## --------- end control -------

 

# bindmount

#BM=home/mockbuild/pbdeps

 

for i in dev dev/pts proc sys run ; do

        mount -o bind /$i $RT/$i

        echo "mount $i"

done

 

LC_ALL=C chroot $RT /bin/bash

 

for i in run dev/pts dev proc sys ; do

        umount $RT/$i

        echo "umount $i"

done

 

EOL

 

chmod +x schroot.sh

 

// enter chroot, add a nameserver to /etc/resolv.conf, clean all

sudo ./schroot.sh

 

cd /var/tmp/zzol9/

sudo tar -Ipzstd -cf ~/ol9-min.tar.zst ./