Comment on Where to start with backups?

irmadlad@lemmy.world ⁨3⁩ ⁨days⁩ ago

• Cyber@feddit.uk ⁨2⁩ ⁨days⁩ ago

  Interesting.

  Yep, I agree there’s 2 types of backups:

  • data
  • OS image

  Out of curiosity, how are you doing the drive imaging?

  source

  • irmadlad@lemmy.world ⁨2⁩ ⁨days⁩ ago

    Out of curiosity, how are you doing the drive imaging?

    I wrote a script that is fired by a cron job once a month:

    sudo nano /usr/local/bin/backup_drive.sh

    spoiler

    # Directory to store backups BACKUP_DIR=“/mnt/myhdd” # Drive to backup DRIVE=“/dev/sdX” # Create a timestamp TIMESTAMP=$(date +“%Y%m%d”) # Filename for the new image NEW_IMAGE=“$BACKUP_DIR/my_drive_image_$TIMESTAMP.img” # Create the image sudo dd if=$DRIVE of=$NEW_IMAGE bs=4M status=progress # Keep the last 3 images ls -tp $BACKUP_DIR/my_drive_image_*.img | grep -v ‘/$’ | tail -n +4 | xargs -I {} rm – {}

    Make the script executable:

    sudo chmod +x /usr/local/bin/backup_drive.sh

    Create Cron:

    sudo crontab -e

    0 3 1 * * /usr/local/bin/backup_drive.sh

    Verify cron:

    sudo crontab -l

    I’m sure it could be written differently or that there is a better way to do the imaging, but that is the extent of my notes, and it works for me.

    source

    • Cyber@feddit.uk ⁨1⁩ ⁨day⁩ ago

      Ah, good old dd

      When you have some spare time, take a look at partclone - clonezilla uses it because it only backs up used blocks, not free space, so more efficient.

      source

      • irmadlad@lemmy.world ⁨1⁩ ⁨day⁩ ago

        Thanks for the tip. I’ll definitely check it out

        source