HashBackup setup

• Start Linuxulator
• # pkg install linux_base-rl9
• Download hb from https://www.hashbackup.com/hashbackup/download.html to /root/bin/hb
• # chown root:wheel /root/bin/hb
• # chmod 700 /root/bin/hb
• # hb init -c /hashbackup
• Create /compat/linux/hashbackup/dest.conf

destname fbsd
type s3
host example.com
location loc
accesskey ...
secretkey ...
bucket fbsd
class ia
secure

• # chmod 400 /var/hashbackup/dest.conf

• Customize /compat/linux/hashbackup/inex.conf

ex /hb/boot/

ex /hb/home/*/.sh_history
ex /hb/home/*/.bash_history
ex /hb/home/*/.cache
ex /hb/home/*/.gvfs

ex /hb/root/.sh_history
ex /hb/root/.bash_history
ex /hb/root/.cache
ex /hb/root/.gvfs
...
/usr/local/mysqlbackups/backup

• Set configuration options:

hb config cache-size-limit ...
hb config dedup-mem ...GB
hb config copy-executable True
hb config no-backup-tag .nobackup,CACHEDIR.TAG
hb config pack-age-days 0
hb config pack-download-limit 10TB
hb config pack-percent-free 10

• Crontab:

m h * * * /usr/bin/touch /root/npbin/.hb-daily-marker

• /usr/local/etc/profile

export HASHBACKUP_DIR=/hashbackup

• /root/npbin/hb.sh, to be added to cron

#!/bin/sh

set -e

if zfs list -H -t snapshot -o name | grep -q "@hashbackup"; then
  printf "%s\n" "The snapshots @hashbackup exist:"
  zfs list -H -t snapshot -o name | grep "@hashbackup"
  exit 1
fi

export HASHBACKUP_DIR=/hashbackup

hb="/root/bin/hb"
marker=/root/npbin/.hb-daily-marker

zfs snapshot zroot/ROOT/default@hashbackup
zfs snapshot -r zroot/home@hashbackup

if [ -f $marker ]; then
  n=$($hb upgrade 2>&1 >/dev/null)
  if [ -n "$n" ]; then
    echo "$n" | /usr/bin/mail -s "$(echo "$n" | tail -n 1)" root
    chown root:wheel "$hb"
    chmod 700 "$hb"
  fi
fi

DIRS="/boot /etc /root /usr/local/etc /usr/local/www /var/cron"
DIRSh="/home /home/alik"
DIRShop="/home/alik /home"

for d in ${DIRS}; do
  mkdir -p /compat/linux/hb"${d}"
  mount_nullfs -o ro /.zfs/snapshot/hashbackup"${d}" /compat/linux/hb"${d}"
done
mkdir -p /compat/linux/hb/home
for d in ${DIRSh}; do
  mount_nullfs -o ro "${d}"/.zfs/snapshot/hashbackup /compat/linux/hb"${d}"
done

err=0

if [ -f /compat/linux/hb/etc/rc.conf ] \
  && [ -d /compat/linux/hb/home/alik/.config ]; then
  $hb backup -X /hb/boot/loader.conf /hb || err=1
  $hb retain -t 10d -s safe -x 3m || err=1
  $hb retain -x 2d /usr/local/mysqlbackups || err=1
else
  printf "%s\n" "/compat/linux/hb is not ready"
  err=1
fi

if [ -f $marker ]; then
  $hb tune
  $hb selftest
  $hb dest verify
  rm $marker
fi

for d in ${DIRS} ${DIRShop}; do
  umount -f -t nullfs /compat/linux/hb"${d}"
done

zfs destroy zroot/ROOT/default@hashbackup
zfs destroy -r zroot/home@hashbackup

exit "$err"