WordPress MU is a multi user or multi blog version of WordPress that is used to run sites like WordPress.com.
WordPress MU 2.8.3 is a security and bugfix release based on the fixes in WordPress 2.8.3 but also contains many other changes.
It’s a required upgrade for security reasons but also fixes a number of annoying bugs, especially #1067 and #1076.
Unfortunately the automatic upgrader in MU 2.8.2 is broken but it’s simple to fix:
- Before upgrading, edit wp-admin/includes/class-wp-upgrader.php and look for line 697.
if ( !$wp_filesystem->copy($working_dir . ‘/wordpress/wp-admin/includes/update-core.php’, $wp_dir . ‘wp-admin/includes/update-core.php’, true) ) {
- See the “/wordpress/wp-admin/includes” bit? Change that to “/wordpress-mu/wp-admin/includes”:
if ( !$wp_filesystem->copy($working_dir . ‘/wordpress-mu/wp-admin/includes/update-core.php’, $wp_dir . ‘wp-admin/includes/update-core.php’, true) ) {
- Save the file and auto upgrade. I upgraded this afternoon without a hitch after making that change. It’s fixed in 2.8.3 so it’s the last time you’ll have to do it.
Do not copy and paste the line above as WordPress will have changed the quotes to “smart quotes”. Actually go in and type “-mu” after “wordpress”. No copy and pasting please!
If auto upgrading still doesn’t work, don’t sweat it. Download the new release from the download page and upgrade manually, overwriting your current install with the new files.
39 Comments
WordSkill (11 comments.) on August 7, 2009 at 10:12 pm.
Good stuff, thanks Donncha.
Looking forward to next week’s 2.8.4
mwaterous (9 comments.) on August 8, 2009 at 12:21 am.
Not too far off of what I was thinking myself.
They need to make this an aptitude package so I can just upgrade it through cron.
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Dewey on August 8, 2009 at 12:54 am.
Thank you, sir! That promptly ended my hour long mission trying to figure out it kept failing.
Jeremy (5 comments.) on August 8, 2009 at 2:59 am.
In your blog, why not wrap the above code in <code> tags? That will stop it from doing smart quotes.
Robert (7 comments.) on August 8, 2009 at 3:07 am.
Glad i checked your blog before I hit the upgrade button
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Adam W. Warner (1 comments.) on August 8, 2009 at 12:59 pm.
Thanks as always sir, worked like a charm:)
Seth (1 comments.) on August 8, 2009 at 3:53 pm.
Thanks for the posting the wp-class-upgrader.php fix!
Jom (1 comments.) on August 8, 2009 at 4:33 pm.
Thanks a bunch. I was able to upgrade my wordpress MU with no sweat.
Sanjeeva on August 8, 2009 at 4:54 pm.
Great tip. Saved me from lots of trouble. Thanks.
Mehmet GÃœNDOÄžDU (1 comments.) on August 8, 2009 at 6:17 pm.
Thank you
now waiting 2.8.4
Engelbert on August 8, 2009 at 6:21 pm.
Great help! Thanks for that.
ZKWC (1 comments.) on August 9, 2009 at 1:43 am.
Thanks for the helpful info! Had no idea why it wasn’t unpacking.
That little fix works.
swingJazz (1 comments.) on August 9, 2009 at 1:51 am.
Thank you very much Donncha.
ray on August 9, 2009 at 6:56 pm.
little reminder to all code pasters: always remember to check code snippets you are pasting from a website into an editor for tick marks, inverted commas, single quotation marks – because ’ is not ‘ , even when it looks like it on this page.
besides that: the update went through fine, so i must acknowledge that this was a really big mu-ing step!
Angelo (4 comments.) on August 9, 2009 at 7:32 pm.
I use subversion to upgrade, but the repository at http://svn.automattic.com/wordpress-mu/ doesn’t contain a tag for 2.8.3 now… can you create one or let us know which revision number to use?
Jeremy (5 comments.) on August 10, 2009 at 12:50 am.
Angelo, the branch at http://svn.automattic.com/wordpress-mu/branches/2.8/ (use
svn switchto switch to the branch) will be equivalent for now.Angelo (4 comments.) on August 10, 2009 at 1:39 am.
I don’t want to end up with the latest commit on 2.8, I just want releases. Does stuff get commited to the branches in between releases?
Angelo (4 comments.) on August 10, 2009 at 2:35 am.
Ok, it looks like 2.8.3 is revision 1929 in trac, and looks like the branch isn’t updated yet… so I guess I’ll do that. But I’ll have to remember not to do any updates until the next release.
Donncha (1707 comments.) on August 10, 2009 at 1:12 pm.
I just tagged 2.8.3 so you can update from that if you like.
Jeremy (5 comments.) on August 10, 2009 at 1:13 pm.
Yay, thanks!
Mat_ (1 comments.) on August 10, 2009 at 8:18 am.
Thanks for the tip
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Wabber (1 comments.) on August 10, 2009 at 7:04 pm.
Hi.. thanks for the tip.. worked perfectly
Saved me trying to figure out which files to upload manually.. thanks!
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Mark on August 11, 2009 at 2:22 pm.
Hi,
thanks for the workaround. I just tried it, but I got a warning message saying, that I am trying to download the en-us-Version which doesn’t match with my language version.
So what to do?
Kind Regards
Mark
kunal on August 12, 2009 at 5:43 am.
Sorry for the newbie question, but I would not see this problem if I was upgrading directly from a version prior to 2.8.2 would I? I am still running 2.7.1
Also, is 2.8.4 expected soon? If so, I might just wait a bit and upgrade directly to that.
Thanks!
Mark on August 12, 2009 at 9:40 am.
Just found this today:
http://wordpress.org/development/2009/08/2-8-4-security-release/
So we are right now running from update to update …
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Jason Friesen (1 comments.) on August 14, 2009 at 2:00 am.
Perfect—worked a treat. Thanks for the instructions.
Gaetan on August 14, 2009 at 11:50 am.
Thanks a lot Donncha!
Mark de Scande (1 comments.) on August 14, 2009 at 9:15 pm.
Thx for the help now to update 24 MU Sites
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