how to move my website from ubuntu 10.10 to 12.04 LTS?

[Tyler J. Wagner]

On 2013-01-29 00:25, Rajeev Prasad wrote:
> I have a huge website running on LAMPerl  ubuntu desktop 10.10 32bit
> 
> I have to now move it over to ubuntu server 12.04 LTS 64bit.

Make a dump of your current package list first:

dpkg -l > dpkg.maverick

You may want to refer to it later for those "Oh crap, what package did I
forget?! moments.

In particular, make a list of all packages related to apache2, mysql, perl.
Here's a one-liner you can later paste after "apt-get install":

dpkg -l \*mysql\* \*apache\* \*perl\* | grep ^i | cut -f 3 -d ' ' | tr '\n'
' ' ; echo

Copy /var/www, of course. I'm not sure why Nagy advised you not to copy
/var/lib/mysql; that should work just fine. When mysqld starts it will
upgrade them. But just in case, before upgrading, use mysqldump to dump all
databases.

Do not upgrade via do-release-upgrade or dist-upgrade. Reinstall from
scratch. If you were using 10.10 64-bit, this would be fine, but changing
architectures requires a reinstall. I've upgraded from maverick through
natty and oneric to precise on one LAMP server without incident using
do-release-upgrade.

Finally, do take a complete backup. Something as simple as the following
will save you a lot of trouble later:

rsync -av /bin /boot /etc /home /initrd* /lib* /opt /root /sbin /srv /usr
/var /vmlinu* /media/mounted_usb_disk

Regards,
Tyler

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