[Drupal] How long would it take to upgrade from Drupal 6 to Drupal 7?
https://www.zyxware.com/sites/default/files/styles/user_image/public/default_images/index.png?itok=2YmREnrP
BY Anoop John
6 years ago
Drupal
0 comments comment

With Drupal 8 in the works a lot of Drupal 6 sites are currently upgrading to Drupal 7. We get quite a few queries on Drupal upgrades and almost everybody asks for a fixed price estimate for the process. In theory Drupal 6 to Drupal 7 upgrade process is an automated process (except for the upgrade of theme and custom modules) and all you have to do is to take the site through a set of standard steps for the upgrade. However upgrades don't always work like that.

There are quite a few factors that affect the duration of a Drupal upgrade process. Most of the factors are the same as those that affect Drupal updates as well. Here are some of the key factors.

  1. Whether safe practices are followed - backups, trial, testing
  2. Whether upgrade is done right on the production server or on a development server
  3. Whether there is a development server for the site
  4. Whether code is already under revision control
  5. Whether SSH access is available on the servers
  6. Whether there are a lot of custom patches applied in core or contributed modules
  7. Whether there is documentation of the patches applied
  8. Whether there is a lot of custom code that uses functionalities from contributed modules directly (not via an API)
  9. Whether there is documentation about critical functionalities that should be tested after each update
  10. Whether there are a lot of custom modules
  11. Whether there are a lot of contributed modules
  12. Whether all the contributed modules have D7 versions
  13. Whether all the contributed modules have upgrade paths from D6 versions to D7 versions
  14. Whether there are a lot of template files / theme functions
  15. Whether custom code is heavily API driven or whether they are more or less standalone systems

To commit to a fixed price estimate for the update process each of these aspects will have to be evaluated in detail and this might actually take longer than the full upgrade if the upgrade did not run into any issues. So our general practice is to give a ballpark figure of 80 hours and then bill on the actuals based on an Time & Materials (T&M) billing model.

Also note that all custom code including modules and themes that were created for D6 will have to be manually converted to the D7 API and this would take additional time as well. The time for this will have to be custom estimated for based on the number of template files and the lines of code in the custom modules.

Get in touch with us if you are looking to upgrade your Drupal 6 site to Drupal 7.


RELATED ARTICLE

/themes/custom/zyxpro_light/images/placeholder.png
close

on 01st January 2008 / by webmaster
We have added a few new modules to our site recently. Open Source Web Development Drupal Blogging Free Software Drupalgive Leave a reply Your email address will not be published. Required fields are marked * Sean (not verified) access_time 12 Nov 2019 - 21:39 Hi there, I uploaded the files, enabled the modules to use SU, and now I see the link, but there is no icon... How can I fix this? Thanks, Sean webmaster access_time 12 Nov 2019 - 21:39 In reply to Icon doesn't show by Sean (not verified) What do you see when you view the source? Search for stumblethis_button and you should be able to see the code for the image and the URL. Then you should be able to troubleshoot from there. Juicy Couture Addict (not verified) access_time 12 Nov 2019 - 21:39 thanks for the post. would love to hear more of you. by the way, drupal's really popular nowadays as it has easy and fast features. you agree with me? thanks. Add new comment
/themes/custom/zyxpro_light/images/placeholder.png
more_horiz
close

on 16th January 2008 / by webmaster
Most webmasters do not realize this, but a lot of the content on lot of websites can be accessed from multiple URLs. A simple example would be where www.example.com and example.com leads to the same page. This is a fatal mistake in Search Engine Optimization and search engines penalize you for duplicate content. The correct configuration would be where the above two urls will lead you to the same page but example.com will redirect you to www.example.com with a 301 (Moved permanently) status which will not result in search engines penalizing the page. It is very easy to configure 301 redirects using Apache .htaccess file and the process is the same for a Drupal installation also. Web Development Drupal SEO Drupal Planet Leave a reply Your email address will not be published. Required fields are marked * Anonymous (not verified) access_time 12 Nov 2019 - 21:39 Hello. I'm trying to make example.com show as www.example.com, and I'm running into difficulties. I'm on Apache 2.0 and using the following lines in my httpd.conf file: RewriteEngine on RewriteCond %{HTTP_HOST} ^xxxxxxxxxx\.com$ [NC] RewriteRule ^(.*)$ http://www.xxxxxxxxxx.com/$1 [L,R=301] When I go to http://xxxxxxxxxx.com, I get http://www.xxxxxxxxxx.com (as expected). However, when I go to http://xxxxxxxxxx.com/node/1 (it's a Drupal site), I get a 404 thrown and the URL changes to xxxxxxxxxx.com/var/www/drupal/node/1. Same thing with www.xxxxxxxxxx.com/node/1. Any suggestions? I want to run without Drupal's .htaccess file (instead incorporating these calls into my httpd.conf file). webmaster access_time 12 Nov 2019 - 21:39 In reply to Rewrite including filesystem path by Anonymous (not verified) I think the problem is with the base path which results in the redirection to /var/www/ part. The best approach I would think is to start with drupal htaccess and then strip out parts and move to httpd SNVC (not verified) access_time 12 Nov 2019 - 21:39 This is definitely a good guide. Thanks for this. wellyson access_time 12 Nov 2019 - 21:39 This is really nice and helpful. Add new comment
/themes/custom/zyxpro_light/images/placeholder.png
close

on 07th January 2008 / by webmaster
We have volunteered to take up the maintenance of a very useful Drupal module - Search404. As of today we are the official maintainers of this very useful Drupal module. We know that this is going to be a challenge for us, being a young company and with a young team. But we do feel that it is our responsibility to give back to the Drupal community at least some part of what it has given us. Open Source Web Development Drupal Leave a reply Your email address will not be published. Required fields are marked * ian douglas (not verified) access_time 12 Nov 2019 - 21:39 I notice your updates on the Drupal modules page has some patch files, but they are patches for an older version of the 5.x branch of search404. Do you have any expectation on when a version for Drupal 6 will be ready? webmaster access_time 12 Nov 2019 - 21:39 In reply to when will search404 for drupal 6 be ready? by ian douglas (not verified) Hi Ian, We are currently working on moving Search404 to Drupal 6. The port has already been done and we should have a release up on drupal.org by tomorrow or worst case by monday. Cheers Anoop John Team Zyxware Dejan (not verified) access_time 12 Nov 2019 - 21:39 In reply to when will search404 for drupal 6 be ready? by ian douglas (not verified) I think that's been up for a while... did you check the download page? Add new comment
Leave a reply
Your email address will not be published. Required fields are marked *

Filtered HTML

  • Web page addresses and email addresses turn into links automatically.
  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type='1 A I'> <li> <dl> <dt> <dd> <h2 id='jump-*'> <h3 id> <h4 id> <h5 id> <h6 id>
  • Lines and paragraphs break automatically.
The content of this field is kept private and will not be shown publicly.
CAPTCHA This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.