====== Ubuntu - Backups - Backup using tar ======

<WRAP alert>
**ALERT:** Double check that all paths are written correctly!!!

  * If not, then this may result in an unrecoverable system and data loss.
</WRAP>

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===== Backup =====

<code bash>
# tar.gz
tar cvpzf os_backup.tar.gz / --exclude=/proc --exclude=/lost+found --exclude=/os_backup.tar.gz --exclude=/mnt --exclude=/sys

# tar.bz2
tar cvpjf os_backup.tar.bz2 / --exclude=/proc --exclude=/lost+found --exclude=/os_backup.tar.bz2 --exclude=/mnt --exclude=/sys
</code>

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===== Restore =====

<code bash>
cd /

# Copy the os_backup.tar.gz or os_backup.tar.bz2 to the root directory.
</code>

then

<code bash>
# For tar.gz
tar xvpfz system_backup.tar.gz -C /

or

# For tar.bz2
tar xvpfj system_backup.tar.bz2 -C /
</code>

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===== Create directories that were not backed up =====

<code bash>
mkdir proc
mkdir lost+found
mkdir mnt
mkdir sys
</code>

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===== Modify directory permission =====

<code bash>
chown -R root:root /proc/
chown -R root:root /lost+found/
chown -R root:root /mnt/
chown -R root:root /sys/
chmod -R 555 /proc/
chmod -R 700 /lost+found/

or

chmod -R 755 /lost+found/
chmod -R 755 /mnt/
chmod -R 755 /sys/
</code>

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