proceed manually –or– this is otherwise automated with the slackpost.bash script

cd /data/guests/
wget https://pub.nethence.com/bin/slack/slackpost.bash.txt
mv slackpost.bash.txt slackpost.bash
chmod +x slackpost.bash

define/tune accordingly

vi /root/mirror.conf

mirror=YOUR-CLOSEST-MIRROR/slackware64-15.0/
zone=Europe/Moscow

# FILE-SYSTEM
#fs=reiser4
#fs=btrfs
fs=f2fs

# VMM
vpartition=/dev/xvda1
serial=hvc0
#vpartition=/dev/vda1
#serial=ttyS0

and proceed

cd /data/guests/$guest/
../slackpost.bash $guest lala/

beware to start this one from rc.inet1 or install and enable rc.inet2

    ls -lF lala/etc/rc.d/rc.inet2 # no exist unless you did full install

    # REC but forcibly installed by slackstrap/minimal
    ls -lF lala/etc/rc.d/rc.sshd # already enabled
grep sshd lala/etc/rc.d/rc.inet1
grep sshd lala/etc/rc.d/rc.local

no kernel what-so-ever for XEN

ls -lF lala/var/log/packages/kernel*

update package cache

echo $dns1
echo $dns2

ls -lF lala/etc/resolv.conf # no exist
cat > lala/etc/resolv.conf <<-EOF
nameserver $dns1
nameserver $dns2
EOF

mount -o bind /dev lala/dev
mount -o bind /dev/pts lala/dev/pts
mount -o bind /proc lala/proc
mount -o bind /sys lala/sys
chroot lala/ bash

ping -c1 opendns.com
cat /etc/slackpkg/mirrors
slackpkg update
history -c

^D
rm -f lala/root/.bash

kvm-only

fix the xen guest serial console, see syslinux

xen-only

deploy and enable TMEM

    mkdir lala/lib/modules/
    tar xzf /data/kernels/5.2.21.domureiser4.modules.tar.gz -C lala/lib/modules/
    echo /sbin/modprobe tmem >> lala/etc/rc.d/rc.modules.local
    ls -lF lala/etc/rc.d/rc.modules.local # enabled already

shared

finish-up — be it for a template or not (see below)

    ls -ldF lala/installpkg-*/ # no exist
    #rm -rf lala/installpkg-*/

    du -sh lala/

    # mklost+found ...
    umount -R lala/
    rmdir lala/