samedi, janvier 28, 2012

Installing Samsung ML-2950 series printer drivers on FreeBSD

I've just replaced my inkjet printer with a laser one (Samsung ML-2955ND: Netword and Duplex).
Samsung provide drivers for lot's of OS (HP-UX, IBM AIX, GNU/Linux, MacOSX, etc…) but nothing for FreeBSD :-(

Hopefully the GNU/Linux drivers is CUPS based and use standard PPD file… But with a binary only cups-filter.
I didn't know if it was possible to use the Linux emulation layer of FreeBSD for using this cups-filter, but a previous experience was successful, then I try it too.

The major idea is to:

  1. Install print/cups
  2. Enable and install the FreeBSD Linux binary compatibility
  3. Getting the Samsung Unified drivers for the ML-2950 series
  4. Extracting the PPD file and the i386 binary cups-filter used by the PPD
  5. Fixing the missing dependency needed by the samsung cups-filter

I will not explain the steps 1,2 and 3.

Extract the Unified Linux Drivers:
$ tar zxvf ULD_Linux_V1.00.06.tar.gz

Then check the filter used by the PPD file:

$ grep cupsFilter uld/noarch/share/ppd/Samsung_ML-2950_Series.ppd
*cupsFilter:  "application/vnd.cups-raster 0 rastertospl"

=> This PPD file use the "rastertospl" filter.

Now copy the PPD and the Samsung cups-filter to the local cups directories:
$ mkdir /usr/local/share/cups/model/samsung
$ cp uld/noarch/share/ppd/Samsung_ML-2950_Series.ppd/usr/local/share/cups/model/samsung/
$ cp uld/i386/rastertospl /usr/local/libexec/cups/filter/

Once copied, you can execute rastertosamsungspl from a CLI for displaying the missing Linux libs:

# /usr/local/libexec/cups/filter/rastertospl
/usr/local/libexec/cups/filter/rastertosamsungspl: error while loading shared libraries: cannot open shared object file: No such file or directory

There are two method here:

The first and easiest is simply to install print/linux-f10-cups-libs. It should install all dependency needed by the crappy Samsung binary filter (Thanks Patrick for this tips!)

The second, a lot's more complex, and that add lot's of file not managed by the FreeBSD package manager is to check for missing libs one by one: You need to install the missing libs, running a ldconfig and re-execute rastertosamsungspl for discovering that another libs is missing.
Here is the list of all libs that I've installed:
# cd /tmp
# fetch
# fetch
# fetch
# fetch
# fetch
# cd /compat/linux
# rpm2cpio /tmp/cups-libs-1.3.9-2.fc10.i386.rpm | tar -zxf -
# rpm2cpio /tmp/gnutls-2.4.2-2.fc10.i386.rpm | tar -zxf -
# rpm2cpio /tmp/libtasn1-1.5-1.fc10.i386.rpm | tar -zxf -
# rpm2cpio /tmp/libgcrypt-1.4.3-2.fc10.i386.rpm | tar -zxf -
# rpm2cpio /tmp/libgpg-error-1.6-2.i386.rpm | tar -zxf -

Once all dependencies are installed, you should have this message when executing rastertosamsungspl:

# /usr/local/libexec/cups/filter/rastertosamsungspl 
INFO: Usage: rastertosamsungspl job-id user title copies options [file]
ERROR: Wrong number of arguments

Now you can add your printer from the CUPS admin panel and use it :-)

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