cPanel Crash Drive Recovery

Hi,

I hope this topic will be helpful for all of you..

You have a server whose disk is crashed for some reason and you have been provided with a new disk with OS and cPanel installed on it (SDA). The old drive is attached to the disk and this will be the second disk on the server (SDB)

Check what partition contained the data through below command:

# fdisk -l

Once you find the partition, you can mount it to /old_drive

# mkdir /old_drive

# mount /dev/hdb3 /old_drive

Verify the home directory is present:

# ls /old_drive/home

Begin the recovery using below commands:

# rsync -vrplogDtH /old_drive/usr/local/apache/conf /usr/local/apache

# rsync -vrplogDtH /old_drive/var/named /var

# rsync -vrplogDtH /old_drive/usr/local/cpanel /usr/local

# rsync -vrplogDtH /old_drive/var/cpanel /var

# rsync -vrplogDtH /old_drive/usr/share/ssl /usr/share

# rsync -vrplogDtH /old_drive/var/ssl /var

# rsync -vrplogDtH /old_drive/usr/local/cpanel/3rdparty/mailman /usr/local/cpanel/3rdparty

# rsync -vrplogDtH /old_drive/var/log/bandwidth /var/log

# rsync -vrplogDtH /old_drive/usr/local/frontpage /usr/local

# rsync -vrplogDtH /old_drive/var/spool/cron /var/spool

# rsync -vrplogDtH /old_drive/root/.my.cnf /root

# rsync -vrplogDtH /old_drive/etc/httpd/conf/httpd.conf /etc/httpd/conf

Make sure to copy the apache configuration files as per your built based on EA3 or EA4.. This is really important..

Copy the MySQL data and then home data.. These are usually large in size, so my preferred choice is to do that in the last:

# rsync -vrplogDtH /old_drive/var/lib/mysql /var/lib

# rsync -vrplogDtH /old_drive/home/* /home

Now, here is the small but main part, i.e., copying the system configuration:

# cd /old_drive/etc

# rsync -vrplogDtH secondarymx domainalias valiases vfilters exim* proftpd* pure-ftpd* passwd* group* *domain* *named* wwwacct.conf cpupdate.conf quota.conf shadow* *rndc* ips* ipaddrpool* ssl hosts /etc

Change the root password immediately, as the password file is also been changed with the above command:

# passwd root

Now, when all data is moved, you can update the cPanel built using below command:

# /scripts/upcp

Recheck the EasyApache configuration and rebuild it too to match the modules and PHP versions..

Once this is complete, the recovery is done. At this time, a reboot may not be required, but if there is any kernel update, please do install it and reboot the machine once.

I hope that has been informative for you and I would like to thank you for viewing it.