Atp's external memory

yum problems

Not an obvious solution

So, going back and fixing up auth on our few remaining older systems (centos 5, not internet facing) came across the error below. Solution was beautifully non obvious, so it goes here in the external memory pack.

yum --enablerepo=my-repo-x86_64  list updates
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: a.centos.mirror
 * epel: another.centos.mirror
 * extras: and.a.further.centos.mirror
 * updates:
my-repo-x86_64                                                                                                                                                       | 2.9 kB     00:00     
my-repo-x86_64/primary_db                                                                                                                                            | 7.1 kB     00:00     
58ed1e791dae601b1b0be13ea8af523761fbabd-primary.sqlite.bz2: [Errno -3] \
Error performing checksum
Trying other mirror.
my-repo-x86_64/primary_db                                                                                                                                            | 7.1 kB     00:00     
Error: failure: repodata/7d1016c9fcac64ee6c0fe9b5b58ed1e791dae601b1b0be13ea8af5\
23761fbabd-primary.sqlite.bz2 from my-repo-x86_64: [Errno 256] \
No more mirrors to try.

Do not pass go. Do not collect your new sssd binaries.

Written by atp

Monday 29 September 2014 at 5:37 pm

Posted in Annoyances, Linux

php annoyance multiple file uploads with $_FILES

This caused me to waste 1/2 an hour or so this morning. It also needed some quite precise google-fu to uncover the solution. I'm bound to forget this and am likely to need it again so it's going here. I'm not sure how most of the zillions of "upload multiple files with php" tutorials out there work, because none of them seem to mention this.

I was doing multiple file uploads in php, and finding that although you submit multiple files with a multipart/form-data encoding type (and can see multiple files being submitted in chrome devtools), php was only reporting the last one in the list of uploaded files in $_FILES. Very annoying.

Written by atp

Monday 08 September 2014 at 12:09 pm

Posted in Annoyances, Linux

Intel i915 ironlake graphics

Annoying waste of an hour

If you have an HP 6550b and its using the intel ironlake mobile graphics adaptor, you may find that ubuntu 10.04 and 10.10 don't handle the graphics properly. You'll get a black screen or a failure to start X.

The only way to boot seemed to be to use the VESA driver.

Typical errors in Xorg.0.log are;  no kernel modesetting driver detected



into /etc/default/grub (Kernel Command Line)  and add to your current kernel boot command line in /boot/grub/grub.cfg.

UPDATE: It seems as though something has changed. I had a similar problem on a far more recent laptop (a sandybridge based dell 6420) and kernel, and it seems that the kernel parameter is now;


So, if one doesn't work, try the other!

Written by atp

Friday 13 May 2011 at 11:56 am

Posted in Annoyances