Just in case you didn't find it yet ... there are directions on building 
Geronimo here:

http://cwiki.apache.org/GMOxDEV/building-apache-geronimo.html

Also, please consider using branches/2.1 
(https://svn.apache.org/repos/asf/geronimo/server/branches/2.1) rather 
than branches/2.1.2 for local builds.  The 2.1.2 release is currently 
under vote and if approved the branch for 2.1.2 will be moved to a tag. 
  Any future code contributions would have to be made using trunk ( 
https://svn.apache.org/repos/asf/geronimo/server/trunk) or branches/2.1 
rather than 2.1.2.

Joe



tommy wrote:
> thanks all
>     i resolved this prob , i put globle repository in local setting.xml
> file.
> 
>    thanks again
> 
>    tommy!  
> On Fri, 2008-08-01 at 18:17 +0700, Jason Dillon wrote:
>> Its a local network issue, as the file does exist here:
>>
>>      http://repo1.maven.org/maven2/org/apache/geronimo/genesis/config/project-config/1.3/project-config-1.3.pom
>>
>> --jason
>>
>>
>> On Aug 1, 2008, at 5:47 PM, tommy wrote:
>>
>>> hi all:
>>>   I want to build geronimo-2.1.2,but faild with following error
>>> tommy@debian:~/geronimo/server$ ls
>>> assemblies    buildsupport    framework    NOTICE.txt  pom.xml
>>> RELEASE_NOTES-2.1.2.txt  src        testsupport
>>> BUILDING.txt  DISCLAIMER.txt  LICENSE.txt  plugins     README.txt
>>> repository               testsuite
>>> tommy@debian:~/geronimo/server$ mvn install
>>> [INFO] Scanning for projects...
>>> Downloading:
>>> http://download.java.net/maven/1//org.apache.geronimo.genesis.config/poms/project-config-1.3.pom
>>> Downloading:
>>> http://repo1.maven.org/maven2/org/apache/geronimo/genesis/config/project-config/1.3/project-config-1.3.pom
>>> [INFO]
>>> ------------------------------------------------------------------------
>>> [ERROR] FATAL ERROR
>>> [INFO]
>>> ------------------------------------------------------------------------
>>> [INFO] Failed to resolve artifact.
>>>
>>> GroupId: org.apache.geronimo.genesis.config
>>> ArtifactId: project-config
>>> Version: 1.3
>>>
>>> Reason: Unable to download the artifact from any repository
>>>
>>>  org.apache.geronimo.genesis.config:project-config:pom:1.3
>>>
>>> from the specified remote repositories:
>>>  central (http://repo1.maven.org/maven2),
>>>  java.net (http://download.java.net/maven/1/),
>>>  apache-snapshots
>>> (http://people.apache.org/repo/m2-snapshot-repository)
>>>
>>>
>>> [INFO]
>>> ------------------------------------------------------------------------
>>> [INFO] Trace
>>> org.apache.maven.reactor.MavenExecutionException: Cannot find parent:
>>> org.apache.geronimo.genesis.config:project-config for project:
>>> org.apache.geronimo:geronimo:pom:2.1.2 for project
>>> org.apache.geronimo:geronimo:pom:2.1.2
>>>        at
>>> org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:378)
>>>        at
>>> org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:292)
>>>        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
>>>        at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
>>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>        at
>>> sun
>>> .reflect
>>> .NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>        at
>>> sun
>>> .reflect
>>> .DelegatingMethodAccessorImpl
>>> .invoke(DelegatingMethodAccessorImpl.java:25)
>>>        at java.lang.reflect.Method.invoke(Method.java:585)
>>>        at
>>> org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>>>        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>>>        at
>>> org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>>>        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
>>> Caused by: org.apache.maven.project.ProjectBuildingException: Cannot
>>> find parent: org.apache.geronimo.genesis.config:project-config for
>>> project: org.apache.geronimo:geronimo:pom:2.1.2 for project
>>> org.apache.geronimo:geronimo:pom:2.1.2
>>>        at
>>> org
>>> .apache
>>> .maven
>>> .project
>>> .DefaultMavenProjectBuilder
>>> .assembleLineage(DefaultMavenProjectBuilder.java:1370)
>>>        at
>>> org
>>> .apache
>>> .maven
>>> .project
>>> .DefaultMavenProjectBuilder
>>> .buildInternal(DefaultMavenProjectBuilder.java:821)
>>>        at
>>> org
>>> .apache
>>> .maven
>>> .project
>>> .DefaultMavenProjectBuilder
>>> .buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506)
>>>        at
>>> org
>>> .apache
>>> .maven
>>> .project
>>> .DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:198)
>>>        at
>>> org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:583)
>>>        at
>>> org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:461)
>>>        at
>>> org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:365)
>>>        ... 11 more
>>> Caused by: org.apache.maven.project.ProjectBuildingException: POM
>>> 'org.apache.geronimo.genesis.config:project-config' not found in
>>> repository: Unable to download the artifact from any repository
>>>
>>>  org.apache.geronimo.genesis.config:project-config:pom:1.3
>>>
>>> from the specified remote repositories:
>>>  central (http://repo1.maven.org/maven2),
>>>  java.net (http://download.java.net/maven/1/),
>>>  apache-snapshots
>>> (http://people.apache.org/repo/m2-snapshot-repository)
>>> for project org.apache.geronimo.genesis.config:project-config
>>>        at
>>> org
>>> .apache
>>> .maven
>>> .project
>>> .DefaultMavenProjectBuilder
>>> .findModelFromRepository(DefaultMavenProjectBuilder.java:603)
>>>        at
>>> org
>>> .apache
>>> .maven
>>> .project
>>> .DefaultMavenProjectBuilder
>>> .assembleLineage(DefaultMavenProjectBuilder.java:1366)
>>>        ... 17 more
>>> Caused by:  
>>> org.apache.maven.artifact.resolver.ArtifactNotFoundException:
>>> Unable to download the artifact from any repository
>>>
>>>  org.apache.geronimo.genesis.config:project-config:pom:1.3
>>>
>>> from the specified remote repositories:
>>>  central (http://repo1.maven.org/maven2),
>>>  java.net (http://download.java.net/maven/1/),
>>>  apache-snapshots
>>> (http://people.apache.org/repo/m2-snapshot-repository)
>>>
>>>        at
>>> org 
>>> .apache 
>>> .maven 
>>> .artifact 
>>> .resolver 
>>> .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:212)
>>>        at
>>> org 
>>> .apache 
>>> .maven 
>>> .artifact 
>>> .resolver 
>>> .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:74)
>>>        at
>>> org 
>>> .apache 
>>> .maven 
>>> .project 
>>> .DefaultMavenProjectBuilder 
>>> .findModelFromRepository(DefaultMavenProjectBuilder.java:556)
>>>        ... 18 more
>>> Caused by: org.apache.maven.wagon.ResourceDoesNotExistException:  
>>> Unable
>>> to download the artifact from any repository
>>>        at
>>> org 
>>> .apache 
>>> .maven 
>>> .artifact 
>>> .manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java:331)
>>>        at
>>> org 
>>> .apache 
>>> .maven 
>>> .artifact 
>>> .resolver 
>>> .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:200)
>>>        ... 20 more
>>> [INFO]
>>> ------------------------------------------------------------------------
>>> [INFO] Total time: 1 second
>>> [INFO] Finished at: Fri Aug 01 18:44:36 CST 2008
>>> [INFO] Final Memory: 1M/13M
>>> [INFO]
>>> ------------------------------------------------------------------------
>>> tommy@debian:~/geronimo/server$
>>>
>>> please  help me.
>>>
>>> thanks
>>> tommy
>>>
> 
>