Did you build your own perl, or is this the 64-bit ubuntu perl? What does perl -V show? FWIW, I have no problems installing modules on 64-bit ubuntu: 
cpan[1]> test List::MoreUtils
CPAN: Storable loaded ok (v2.15)
Going to read /home/ysth/.cpan/Metadata
  Database was generated on Wed, 11 Jun 2008 15:06:57 GMT
CPAN: LWP::UserAgent loaded ok (v2.036)
CPAN: Time::HiRes loaded ok (v1.86)

I would like to connect to one of the following sites to get 'authors/
+01mailrc.txt.gz':

 http://www.perl.org/CPAN/
 ftp://ftp.perl.org/pub/CPAN/

Is it OK to try to connect to the Internet? [yes] 
Fetching with LWP:
  http://www.perl.org/CPAN/authors/01mailrc.txt.gz
CPAN: YAML loaded ok (v0.62)
Going to read /home/ysth/.cpan/sources/authors/01mailrc.txt.gz
......................................................................
+......DONE
Fetching with LWP:
  http://www.perl.org/CPAN/modules/02packages.details.txt.gz
Going to read /home/ysth/.cpan/sources/modules/02packages.details.txt.
+gz
  Database was generated on Sun, 03 Aug 2008 19:02:47 GMT
......................................................................
+......DONE
Fetching with LWP:
  http://www.perl.org/CPAN/modules/03modlist.data.gz
Going to read /home/ysth/.cpan/sources/modules/03modlist.data.gz
......................................................................
+......DONE
Going to write /home/ysth/.cpan/Metadata
Running test for module 'List::MoreUtils'
Running make for V/VP/VPARSEVAL/List-MoreUtils-0.22.tar.gz
Fetching with LWP:
  http://www.perl.org/CPAN/authors/id/V/VP/VPARSEVAL/List-MoreUtils-0.
+22.tar.gz

  CPAN: checksum security checks disabled because Digest::SHA not inst
+alled.
  Please consider installing the Digest::SHA module.

Scanning cache /home/ysth/.cpan/build for sizes
.....................................................................-
+------DONE
DEL(1/1): /home/ysth/.cpan/build/Test-Harness-3.10 
List-MoreUtils-0.22/
List-MoreUtils-0.22/Changes
List-MoreUtils-0.22/dhash.h
List-MoreUtils-0.22/lib/
List-MoreUtils-0.22/lib/List/
List-MoreUtils-0.22/lib/List/MoreUtils.pm
List-MoreUtils-0.22/Makefile.PL
List-MoreUtils-0.22/MANIFEST
List-MoreUtils-0.22/META.yml
List-MoreUtils-0.22/MoreUtils.xs
List-MoreUtils-0.22/multicall.h
List-MoreUtils-0.22/README
List-MoreUtils-0.22/t/
List-MoreUtils-0.22/t/0_pod.t
List-MoreUtils-0.22/t/0_pod_coverage.t
List-MoreUtils-0.22/t/List-MoreUtils-pp.t
List-MoreUtils-0.22/t/List-MoreUtils.t
CPAN: File::Temp loaded ok (v0.20)

  CPAN.pm: Going to build V/VP/VPARSEVAL/List-MoreUtils-0.22.tar.gz

Checking if your kit is complete...
Looks good
Writing Makefile for List::MoreUtils
Testing if you have a C compiler
cc -c   -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-s
+trict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE
+_OFFSET_BITS=64 -O2   -DVERSION=\"0.22\" -DXS_VERSION=\"0.22\" -fPIC 
+"-I/usr/lib/perl/5.8/CORE"  -DPERL_EXT test.c
cp lib/List/MoreUtils.pm blib/lib/List/MoreUtils.pm
/usr/bin/perl /usr/share/perl5/ExtUtils/xsubpp  -typemap /usr/share/pe
+rl/5.8/ExtUtils/typemap  MoreUtils.xs > MoreUtils.xsc && mv MoreUtils
+.xsc MoreUtils.c
cc -c   -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-s
+trict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE
+_OFFSET_BITS=64 -O2   -DVERSION=\"0.22\" -DXS_VERSION=\"0.22\" -fPIC 
+"-I/usr/lib/perl/5.8/CORE"  -DPERL_EXT MoreUtils.c
Running Mkbootstrap for List::MoreUtils ()
chmod 644 MoreUtils.bs
rm -f blib/arch/auto/List/MoreUtils/MoreUtils.so
cc  -shared -L/usr/local/lib MoreUtils.o  -o blib/arch/auto/List/MoreU
+tils/MoreUtils.so     \
             \
      
chmod 755 blib/arch/auto/List/MoreUtils/MoreUtils.so
cp MoreUtils.bs blib/arch/auto/List/MoreUtils/MoreUtils.bs
chmod 644 blib/arch/auto/List/MoreUtils/MoreUtils.bs
Manifying blib/man3/List::MoreUtils.3pm
  VPARSEVAL/List-MoreUtils-0.22.tar.gz
  /usr/bin/make -- OK
Running make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_h
+arness(0, 'blib/lib', 'blib/arch')" t/*.t
t/0_pod..................ok   
t/0_pod_coverage.........ok   
t/List-MoreUtils-pp......ok       
t/List-MoreUtils.........ok       
All tests successful.
Files=4, Tests=264,  1 wallclock secs ( 0.04 usr  0.01 sys +  0.90 cus
+r  0.15 csys =  1.10 CPU)
Result: PASS
  VPARSEVAL/List-MoreUtils-0.22.tar.gz
  /usr/bin/make test -- OK

[download]
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In reply to Re: Cannot install CPAN modules by ysth
in thread [SOLVED] Cannot install CPAN modules by azredwing

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