Bug#731806: debian-installer: FTBFS on sparc: genisoimage errors

["Thomas Schmitt" <scdbackup@gmx.net>]

Hi,

sorry for mis-posting the first reply for bug 746254 to this bug 731806.

Meanwhile it turned out that the SIGBUS vanishes if i do not
compile with -O2 or if i replace "a->u =" by memcpy().

So it seems worth to check whether genisoimage resp. strcmp() work
properly if not compiled with -O2.

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A test with Sebastiens genisoimage options succeeded without error.

  /home/thomas/xorriso-1.3.7/xorriso/xorriso -as mkisofs \
      -r -J -o test.iso -G ~/boot/isofs.b -B ... tmp-iso/miniiso/cd_tree

It looks ok, SPARC-boot-wise.

  SUN SPARC disklabel: CD-ROM Disc with Sun sparc boot created by libisofs
  SUN SPARC secs/head: 640
  SUN SPARC heads/cyl: 1
  SUN SPARC partmap  : N   IdTag   Perms    StartCyl   NumBlocks
  SUN SPARC partition: 1  0x0004  0x0010           0       16940
  SUN SPARC partition: 2  0x0002  0x0010           0       16940
  ...
  SUN SPARC partition: 8  0x0002  0x0010           0       16940

An additional option --md5 enabled confirmation that the ISO stream
of libisofs was written flawlessly by libburn into the file test.iso.

  /home/thomas/xorriso-1.3.7/xorriso/xorriso \
      -for_backup -indev test.iso -check_media --

xorriso is willing to load the ISO metadata and to compare it with
the hard disk tree.

  /home/thomas/xorriso-1.3.7/xorriso/xorriso \
      -indev test.iso -compare_r tmp-iso/miniiso/cd_tree /

It only detects the consequences of option -r with directories
(see man genisoimage / mkisofs):
Permissions are set to "r-xr-xr-x", owned by 0, group is 0.

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Have a nice day :)

Thomas