[Debburn-devel] Minor problems with cdrkit-1.1.0

[scdbackup at gmx.net]

Hi,

wearing my scdbackup hat (not the cdrskin one)
i explore wodim and genisoimage from
  http://debburn.alioth.debian.org/cdrkit-1.1.0.tar.gz

My oldfashioned system is a vanilla SuSE 9.0 :
  $ uname -a
  Linux * 2.4.21-215-athlon #1 Tue Apr 27 00:53:38 UTC 2004
  i686 athlon i386 GNU/Linux

Infamous YaST2 sysadmin tool found no cmake on its media.
So i got one from www.cmake.org :
  cmake-2.4.5-Linux-i386.tar.gz
Very user friendly because i could make it work without
becoming superuser by
  PATH="$PATH:../cmake-2.4.5-Linux-i386/bin"

I'm unsure wether this earned me the following trouble:

  $ make
  ...
  /home/stacker/cdrkit_dir/cdrkit-1.1.0/genisoimage/apple.c:
    2410: error: `MAGIC_ERROR' undeclared (first use in this function)
  ...
  make[3]: *** [genisoimage/CMakeFiles/genisoimage.dir/apple.o] Error 1

I disabled USE_MAGIC in genisoimage/apple.c 
  /* ts A61206 : complaints about symbol MAGIC_ERROR */
  #ifdef USE_MAGIC
  #undef USE_MAGIC
  #endif

and make produced these two binaries

  -rwxr-xr-x    1 * *  603639 Dec  6 15:26 ./build/genisoimage/genisoimage
  -rwxr-xr-x    1 * *  461213 Dec  6 15:27 ./build/wodim/wodim

(... now i plan to learn how to keep cmake from issuing
colored texts.)


Next i applied wodim -scanbus to my quite unusual device file
collection which simulates a busy (or ill behaving) drive by
linking /dev/sg7 to /dev/sg1.
  Error trying to open /dev/sg7 exclusively (Device or resource busy)...
  retrying in 1 second.
  [...]
  Error trying to open /dev/sg7 exclusively (Device or resource busy)...
  giving up.
  wodim: Device or resource busy. 

Neither cdrecord nor cdrskin stumble over that setting.
(cdrskin ignores busy drives, cdrecord can live with it
even with the new automatic bus scan.)

After removing /dev/sg7,  -scanbus found my two ide-scsi burners.
  0,0,0     0) '_NEC    ' 'DVD_RW ND-4570A ' '1.02' Removable CD-ROM
  0,1,0     1) 'HL-DT-ST' 'DVDRAM GSA-4082B' 'A201' Removable CD-ROM

Re-installing /dev/sg7 as ill link sabotages -scanbus again.
But usage of dev=0,0,0 or dev=0,1,0 is still possible.


Of course i like wodim's ability to burn a CD without the
need for being superuser. rw permission for /dev/sgN is enough.

I will now test wodim and genisoimage with my backup tool.
Then i will try to implement a fair and suitable choice of burn
programs within scdbackup's configuration scripts. (I.e. detect the
set of available programs, evaluate their revision and help-text
capabilities, choose one of them.)

 
Have a nice day :)

Thomas