Difference between revisions of "Laptop Backup"

Revision as of 20:20, 1 June 2016

Project: Laptop Backup
360x360px
Name	Laptop Backup
Initiator	fridgefire
Status	In progress, not working yet
Skills	Bash magic
Summary	A way to backup a laptop

Information

Laptop is Debian based.
Backup to a NFS share at 192.168.12.75
The NFS share is mounted at /mnt/nas/michiel/
Backup only when eth0 or eth1 is connected and the laptop can ping to the NFS share.

Before running...

Make sure the directory "backup" exist on the NFS share.
Make sure screen is installed

Run the following command at the root of the NFS share.

printf "Welcome01" | shasum -a 512 > .password

Backup

/etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
 
auto eth0
iface eth0 inet dhcp
post-up /etc/network/backup
 
auto eth1
iface eth1 inet dhcp
post-up /etc/network/backup

/etc/network/backup (chmod +x /etc/network/backup after creating file)

#!/bin/sh
: Check if script is not started before last boot.
FLAGFILE=/var/run/backup-is-started
 
case "$IFACE" in
    lo)
        # The loopback interface does not count.
        # only run when some other interface comes up
        exit 0
        ;;
    *)
        ;;
esac
 
if [ -e $FLAGFILE ]; then
    exit 0
else
    touch $FLAGFILE
fi
 
: Start backup
screen -S backup '/etc/network/backupscreen'

/etc/network/backupscreen (chmod +x /etc/network/backupscreen after creating file)

#!/bin/sh
echo "start backup"
: check if we can ping 192.168.12.75
ping -q -c5 192.168.12.75 > /dev/null
if [ $? -eq 0 ] ; then
    echo "ping is succeeded"
else
    echo "Can not ping to server"
    exit 0
fi
 
: Mount NFS share at /mnt/nas/michiel
mount 192.168.12.75:/shares/michiel /mnt/nas/michiel
 
: Check password in /mnt/nas/michiel/.password to make sure you are connected to the right NFS share.
if [ "$(printf "Welcome01" | shasum -a 512)" = "$(cat "/mnt/nas/michiel/.password")" ] ; then
  echo "password accepted"
  exit
else
  echo "Backup script: Wrong password at NFS share"
  exit 0
fi
 
 
: Rsync the whole system except some directories.
echo "Backup script: Rsync is running"
rsync -aAXH --delete --info=progress2 --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/run/*","/mnt/*","/media/*","/lost+found","/home/*/.thumbnails/*","/home/*/.cache/*","/home/*/.local/share/Trash/*","/home/*/.gvfs","/home/*/Downloads"} / /mnt/nas/michiel/backup
 
echo "Backup script: Yeey, backup is finished"

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