Holger's Blog

Still online…

Holger — Tue, 31 Jan 2012 22:48:07 +0000

It's done. Starting at 7pm my phone and network infrastructure moved to a new location and now it's finished - 11pm.

Yes it was only a new room in the same house, but DSL and splitter moved as well as my gateway.

And I had to learn, that your whole connectivity depends on just two wires and DSL works on just one of them.

CynogenMod 7.1.5 on my Milestone

Holger — Sun, 22 Jan 2012 01:43:02 +0000

It was time for another update from https://github.com/nadlabak/android/downloads.

It's so easy with OpenRecovery G.O.T.:

Download
Copy to OpenRecovery/updates using the USB connection.
Reboot into Recovery, if you already have CyanogenMod.
Run the update from Misc menu.
Reboot

“bestfit” is back

Holger — Thu, 19 Jan 2012 20:26:54 +0000

I recently recycled an old script I wrote several years ago to automatically generate an ISO image from selected subfolders. The idea is, that these folders are written to an archive CD/DVD if the total capacity passes the media's limit.
The script calls bestfit (release 0.2.0 by Oskar Liljeblad) and that tool was no longer installed on my current workstation. But now it's back...

Please visit http://nerdbynature.de/bits/bestfit/ for a 32 Bit Debian package or an archive of the sources (tar.gz).
I used the sources to build an AMD64 package just by a call to

fakeroot debian/rules binary

within the source folder.

Usage of bestfit was simple in my case:

bestfit --quiet --invert --space="$((700*1024*1024/2048))" candidates/*

That will give me a list of folders I have to move away from the parent folder candidates, so the remaining folders will fit perfectly on the 700MBs of a Data CD.

Open-iSCSI Interface by libvirt

Holger — Wed, 18 Jan 2012 23:25:40 +0000

While I was introducing an iSCSI pool to libvirt/kvm, a new interface was introduced to Open-iSCSI called libvirt-iface-*, with the effect that LUNs were no longer detected after target login.

It took nearly an hour to detect the reason for this failure, but since the initiator ID changed and the default CHAP login was not set for this interface, the iSCSI LUNs failed.

The following steps solved the problem on each KVM host:

Remove the interface definition from /etc/iscsi.
Remove all node and target definitions containing the libvirt device name from /etc/iscsi.
Reboot
Introduce the iSCSI targets before binding them to a pool in libvirt.

WordPress with non-MD5 Passwords

Holger — Sat, 14 Jan 2012 23:09:41 +0000

Yes, WordPress is using phpass for users's passwords, but you better change the second parameter to the call of PasswordHash from TRUE to FALSE in the file wp-includes/pluggable.php to get non-MD5/improved hash algorithms.

The algorithm is referenced in the hash stored in the database, so you should be able to change this parameter in every direction while leaving the logins active.

If you change the call to PasswordHash, you also need to set a new password, to propagate the chanes.