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:

[FONT=georgia][SIZE=16px][FONT=comic sans ms][FONT=comic sans ms]# fdisk -l[/FONT][/FONT][/SIZE][/FONT]

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

[FONT=comic sans ms][SIZE=16px]# mkdir /old_drive

# mount /dev/hdb3 /old_drive[/SIZE][/FONT]

Verify the home directory is present:

[FONT=comic sans ms][SIZE=16px]# ls /old_drive/home[/SIZE][/FONT]

Begin the recovery using below commands:

[FONT=comic sans ms][SIZE=16px]# 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[/SIZE][/FONT]

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:

[FONT=comic sans ms][SIZE=16px]# rsync -vrplogDtH /old_drive/var/lib/mysql /var/lib

# rsync -vrplogDtH /old_drive/home/* /home[/SIZE][/FONT]

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

[FONT=comic sans ms][SIZE=16px]# 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[/SIZE][/FONT]

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

[FONT=comic sans ms][SIZE=16px]# passwd root[/SIZE][/FONT]

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

[FONT=comic sans ms][SIZE=16px]# /scripts/upcp[/SIZE][/FONT]

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.