Erstellen eines komplettes Backups der gesamten SD-Karte eines Raspberry Pis.
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385 lines
12 KiB
385 lines
12 KiB
#!/bin/bash
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# by strobelstefan.org
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# 2021-06-01
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# Version: 3.0
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# https://strobelstefan.org/2019/10/21/raspberry-pi-sd-karte-im-livebetrieb-klonen-neue-version/
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#
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# This script creates a full clone of your Raspberry Pi´s SD card.
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#
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###################################
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# Define Variables
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###################################
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# Storage device as defined in your /etc/fstab
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mountpoint='/mnt/usbbackup/'
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# Path were the image of your SD card should be saved to
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STORAGEPATH="/mnt/usbbackup/nextcloud/images"
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# Location of Nextcloud Installation
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NEXTCLOUDINSTALLATION="/var/www/html/nextcloud"
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# Location of PiShrink script pishrink.sh
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PISHRINK="/etc/scripts/PiShrink"
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# Location of imagebackup
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IMAGEBACKUP="/etc/scripts/imagebackup"
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# Location of image backup script
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IMAGESCRIPT="/etc/scripts/imagebackup/imagebackup.sh"
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# Image name
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IMAGENAME="nextcloud"
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# E-Mail Address For Messages
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EMAIL="mail@e-mail.de"
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# E-Mail Address for sending out backup script
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EMAILIMAGESCRIPT="mail@e-mail.de"
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#Log File location and name
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LOGFILE="/var/log/imagebackup.log"
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###################################
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# This removes your old log file
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###################################
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# This removes your old log file and creates a new one
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rm -f ${LOGFILE}
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touch ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Created New Log File ${LOGFILE}" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Update imagebackup script
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###################################
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# This update functions only work, when you use your own Git repository!
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# If you use the official imagebackup repository your defined variables will be over written
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# every time you update the repo and you have to adjust the manuals manually
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# cd ${IMAGEBACKUP}
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# sudo git clone
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# Set the correct permissions for the script
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# sudo chown root:root imagebackup.sh
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# sudo chmod 0600 imagebackup.sh
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# sudo chmod +x imagebackup.sh
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# echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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# echo $(date +%Y-%m-%d_%H-%M-%S) " - Check for imagebackup Updates" >> ${LOGFILE}
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#cd ${IMAGEBACKUP} >> ${LOGFILE}
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#sudo git pull >> ${LOGFILE}
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# echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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# echo >> ${LOGFILE}
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# echo >> ${LOGFILE}
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###################################
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# Update PiShrink script
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###################################
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# This update functions only works, when you have cloned the GitHub repository on your Raspberry Pi
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# cd ${PISHRINK}
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# sudo git clone https://github.com/Drewsif/PiShrink.git
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# Set the correct permissions for the script
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# sudo chown root:root pishrink.sh
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# sudo chmod 0600 pishrink.sh
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# sudo chmod +x pishrink.sh
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Check for PiShrink Updates" >> ${LOGFILE}
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###################################
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# Update PiShrink Git Repo via git pull
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###################################
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cd ${PISHRINK} >> ${LOGFILE}
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sudo git pull >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# MOUNTPOINT Section - Check Mount point Availability
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###################################
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# It checks if your mount point is accessible by your RPi.
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# This is a crucial step, if the storage is not available the clone process of the SD card cannot conducted.
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# Process
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# 1. Check if mount point is accessible
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# 2. If YES go to DELETION Section
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# 3.1 If NO, try to mount storage device as defined in /etc/fstab
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# 3.2 If mount is again not successful exit script, no further action will be conducted
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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if [ "$(findmnt ${mountpoint})" ] ;
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Mount point accessible by your "$HOSTNAME >> ${LOGFILE}
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else
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Mount point was not accessible, try to mount it now as defined in your /etc/fstab" >> ${LOGFILE}
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#This command mounts all storages defined in /etc/fstab
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mount -a
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Mount of storage in first try successfully completed" >> ${LOGFILE}
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sleep 5
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mount -a
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Backup FAILED! Was not able to mount your storage device. Stop backup process. You have to check it manually." >> ${LOGFILE}
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echo "Sent backup status via e-mail" | mutt ${EMAIL} -a ${LOGFILE} -s $HOSTNAME" - Backup FAILED" >> ${LOGFILE}
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exit
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fi
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fi
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fi
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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##################################################################
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# DELETION Section - Remove old Images from Storage Device
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##################################################################
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# Use this command with CAUTION!
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# This will help you to automatically remove old images from your storage device to avoid that your
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# storage will run out of disk space
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Start to delete files older than defined time " >> ${LOGFILE}
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# Uncomment if the files should be identified by days, file > 30 days than it gets deleted
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#find ${STORAGEPATH}/*.* -mtime +30 -exec rm -r {} \;
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# Uncomment if you would like to use minutes file > 10080 minutes than it gets deleted
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find ${STORAGEPATH}/*.* -type f -mmin +14400 -exec rm {} \;
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Deletion of old image files successfully completed" >> ${LOGFILE}
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Was not able to delete old image files. You have to check it manually." >> ${LOGFILE}
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break
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fi
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fi
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Nextcloud Maintenance Mode ON
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###################################
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# Activates Maintenance mode for Nextcloud
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# ATTENTION:
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# When Maintenance mode ist active! No user can login to the system!
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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# Change directory
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cd ${NEXTCLOUDINSTALLATION} >> ${LOGFILE}
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sudo -u www-data php occ maintenance:mode --on >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Nextcloud maintenance mode ON" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# CLONE Section - Clone SD Card Image
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###################################
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# This line creates a full copy of the SD card and writes it as an image file to the defined patch
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Started to clone image" >> ${LOGFILE}
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# Saves a plain img file on your storage device
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sudo dd if=/dev/mmcblk0 of=${STORAGEPATH}/${IMAGENAME}_$(date +%Y-%m-%d).img bs=1MB
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Finished to clone image" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Nextcloud Maintenance Mode OFF
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###################################
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# Deactivates Maintenance mode for Nextcloud
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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# Change directory
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cd ${NEXTCLOUDINSTALLATION} >> ${LOGFILE}
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sudo -u www-data php occ maintenance:mode --off >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Nextcloud maintenance mode OFF" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Resize Image
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###################################
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# Resize image with PiShrink
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# Please see https://github.com/Drewsif/PiShrink for further details
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Started to resize image" >> ${LOGFILE}
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sudo /bin/bash ${PISHRINKSCRIPT}/pishrink.sh -d ${STORAGEPATH}/${IMAGENAME}_$(date +%Y-%m-%d).img ${STORAGEPATH}/${IMAGENAME}_$(date +%Y-%m-%d)-small.img >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Finished to resize big image" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Delete big image file
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###################################
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Started to delete big image" >> ${LOGFILE}
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sudo rm ${STORAGEPATH}/${IMAGENAME}_$(date +%Y-%m-%d).img >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Finished to delete big image" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Creates a compressed file of the resized image
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###################################
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# This command will create a compressed gz archive of the small image file.
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# The small file will get deleted during the process if you would like to keep
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# the small image file use the command gzip -k ${STORAGEPATH}/${IMAGENAME}_$(date +%Y-%m-%d)-small.img
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# Before you change the compression process check your disk space size
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Started to compress small image" >> ${LOGFILE}
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gzip -q ${STORAGEPATH}/${IMAGENAME}_$(date +%Y-%m-%d)-small.img >> ${LOGFILE}
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Finished to compress small image" >> ${LOGFILE}
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Image file created" >> ${LOGFILE}
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Was not able to create your image file. You have to check it manually." >> ${LOGFILE}
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break
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fi
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fi
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Finished to delete big image" >> ${LOGFILE}
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Umount Storage Device
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###################################
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# This command umounts the defined storage device.
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# In the first try it will gently try to umount,
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# if the device is busy the command will force the umount.
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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if [ "$(umount ${mountpoint})" ] ;
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Umounted your storage device" >> ${LOGFILE}
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else
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Umount of storage device was not possible in first run, wait for 30 seconds" >> ${LOGFILE}
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sleep 30
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Umount was successful!" >> ${LOGFILE}
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sleep 5
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umount ${mountpoint}
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if [ $? != 0 ]
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then
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Umount successful!" >> ${LOGFILE}
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exit
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fi
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fi
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fi
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echo "++++++++++++++++++++++++++" >> ${LOGFILE}
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echo >> ${LOGFILE}
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echo >> ${LOGFILE}
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###################################
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# Script Finished
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###################################
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Mission Accomplished!!! System is going for a reboot." >> ${LOGFILE}
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###################################
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# Sends Backup Script To defined E-Mail Address
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###################################
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echo $(date +%Y-%m-%d_%H-%M-%S) " - Sent Backup Script to ${EMAILIMAGESCRIPT}" | mutt ${EMAILIMAGESCRIPT} -a ${IMAGESCRIPT} -s "NEXTCLOUD Pi - Image Backup Script" >> ${LOGFILE}
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###################################
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# Sends Log File To Defined E-Mail Address
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###################################
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echo "Sent backup status via e-mail" | mutt ${EMAIL} -a ${LOGFILE} pishrink.log -s $HOSTNAME" - Backup SUCCESSFULL" >> ${LOGFILE}
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###################################
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# System Reboot
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###################################
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sudo reboot
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