GitLab

entries for all pc types, even if are no nodes with those types in the
testbed. This is very useful for preloading images and the mappings at
the begginning of time, when loading the initial descriptors.

Basically, we cannot create an image descriptor without any types
defined, and we cannot create any types without a default image
descriptor. I broke the circle by adding a stub pc type into the
database fill file so that all Emulabs start with a predefined type.
Then you can load the descriptor file, create your actual types, and
then go back and edit the image descriptors to set the types those
images run on (you always had to do this).

process, to add the base descriptors.

image.

 * when creating an image from a node, make sure the new image
   gets the MBR version used by the existing image
 * when loading a single-partition image that requires a different
   MBR, invalidate all other existing partition ("invalidate" in the
   sense that we remove any partitions table entries, we don't do anything
   to the disk)

I'm sure there was a reason for this at one time, but I don't recall it...

Fix Ticket #211 by reporting all the unacceptable node types at once.

creating a whole disk image with the "Easy" form.

     www/newimageid_ez.php3 - The reworked PHP page.  Calls Image::NewImageId with ez=1.
     www/newimageid.php3 - Call Image::NewImageId with ez=0.
     www/imageid_defs.php - Re-use the Image::NewImageId class method, adding an 'ez' arg.
     backend/{newimageid_ez,GNUmakefile}.in configure configure.in - New backend script.
         After checks, calls OSinfo->Create and Image->Create with the same XML args array.
     db/Image.pm.in - Re-use the Image->Create method, adding an imageid over-ride arg.
     db/OSinfo.pm.in - Filter out extraneous db slot args from XML in the Create method.
     db/libdb.pm.in - Add TB_{OS,IMAGE}ID_* constants from dbdefs.php3 .
     sql/database-fill.sql - Add OS entries to the table_regex 'images' pattern set.

     www/newimageid.php3 - The reworked PHP page.
     www/imageid_defs.php - Add an Image::NewImageId class method
                            bridging to the script via XML.
     backend/{newimageid,GNUmakefile}.in configure configure.in - New backend script.
     db/Image.pm.in - Add a Create class method for script arg checking.
     sql/database-fill.sql - Add to the table_regex 'images' checking patterns.