BlueScripts » CentOS

Lighttpd + mod_magnet on CentOS (64 bit)

Josh — Tue, 18 Aug 2009 15:20:17 +0000

After about an hour of tinkering around on google and in the terminal here is what you need to do:

wget http://www.lua.org/ftp/lua-5.1.2.tar.gz
tar xfz lua-5.1.2.tar.gz
cd lua-5.1.2
nano src/Makefile

Replace:

 CFLAGS= -O2 -Wall $(MYCFLAGS)

With:

 CFLAGS= -O2 -Wall -fPIC $(MYCFLAGS)

make linux install

wget http://luaforge.net/frs/download.php/2384/md5-1.0.2.tar.gz
tar xfz md5-1.0.2.tar.gz
cd md5-1.0.2
make
make install
cd ..
wget http://luaforge.net/frs/download.php/1678/luazlib-0.0.1.rar

wget wget http://www.rarlab.com/rar/unrar-3.7.7-centos.gz
gunzip unrar-3.7.7-centos.gz
chmod +x unrar-3.7.7-centos
./unrar-3.7.7-centos x luazlib-0.0.1.rar
cd luazlib-0.0.1
make
make install

export LUA_CFLAGS="-I/usr/local/include"
export LUA_LIBS="-L/usr/local/lib -llua"

cd LIGHTTPD_DIRECTORY
./configure -with-lua
make
make install

All done!

Thanks to:
http://gadelkareem.com/2007/09/17/dynamic-content-caching-using-lighty-mod_magnet-lua/ && http://www.verlihub-project.org/doku.phpid=howto_install_lua_library_on_64_bit

Interesting Loopback Device issue on CentOS

Josh — Mon, 03 Aug 2009 23:03:17 +0000

Was playing around with using the loopback devices to mount some OS images on CentOS and following the losetup followed by a mount command would indeed mount the image, but umount wouldn’t unmount it and would leave it stagnant, leaving me with this error:

ioctl: LOOP_CLR_FD: Device or resource busy

Interestingly enough though the lomount command

lomount -diskimage OS.img -partition 1  /MOUNTFOLDER

and then using umount to unmount the mountfolder would unmount the loopback device properly and free it for re-use.

Hope this helps someone!

CentOS w/out Yum

Josh — Fri, 05 Sep 2008 15:34:26 +0000

Took me about 20 minutes to figure out why this wasn’t working when installing yum:

After you follow the instructions at� http://wiki.centos.org/TipsAndTricks/BrokenVserver
You get to the part where your trying to install rpm-python. This doesn’t work quite as you’d hoped.�

Error:

# rpm -Uvh rpm-python-4.4.2-48.el5.i386.rpm

warning: rpm-python-4.4.2-48.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID e8562897

error: Failed dependencies:

� �  �  �  � rpm = 4.4.2-48.el5 is needed by rpm-python-4.4.2-48.el5.i386

So clear all the other RPM’s you installed, download these three from the repository (varies if your using 64 bit or i386)

rpm-4.4.2-48.el5.i386.rpm � � � rpm-python-4.4.2-48.el5.i386.rpm

rpm-libs-4.4.2-48.el5.i386.rpm �

Make sure all these are present then run:

rpm -Uvh *.rpm

� This will install the libs and the RPM update at the same time so the error isn’t thrown.