[Bug 964077] [NEW] can not update from bodhi (ubuntu 10.10 remix) to ubuntu

[jamz3243]

Public bug reported:

just as the title says when I try to convert bodhi linux (ubuntu remix)
into ubuntu,it says as following:

sudo do-release-upgrade
Checking for a new ubuntu release
Done Upgrade tool signature
Done Upgrade tool
Done downloading            
authenticate 'maverick.tar.gz' against 'maverick.tar.gz.gpg' 
extracting 'maverick.tar.gz'
tar: Removing leading `/' from member names

Reading cache

Checking package manager
Reading package lists... Done
Building dependency tree        
Reading state information... Done
Building data structures... Done 
Reading package lists... Done    
Building dependency tree          
Reading state information... Done
Building data structures... Done 

Updating repository information
WARNING: Failed to read mirror file

Third party sources disabled

Some third party entries in your sources.list were disabled. You can 
re-enable them after the upgrade with the 'software-properties' tool 
or your package manager. 

95% [Working] 
Checking package manager
Reading package lists... Done    
Building dependency tree          
Reading state information... Done
Building data structures... Done 

Calculating the changes

Calculating the changes

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade: 
The package 'update-manager-core' is marked for removal but it is in 
the removal blacklist. 

This can be caused by: 
* Upgrading to a pre-release version of Ubuntu 
* Running the current pre-release version of Ubuntu 
* Unofficial software packages not provided by Ubuntu 

If none of this applies, then please report this bug against the 
'update-manager' package and include the files in 
/var/log/dist-upgrade/ in the bug report. 


Restoring original system state

Aborting
Reading package lists... Done    
Building dependency tree          
Reading state information... Done
Building data structures... Done

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: update-manager 1:0.134.12.1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
Architecture: i386
Date: Sat Mar 24 15:06:52 2012
GConfNonDefault:
 /apps/update-manager/check_new_release_ignore=
 /apps/update-manager/show_details=false
 /apps/update-manager/show_versions=false
InstallationMedia: Bodhi Linux - Release i386
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
VarLogDistupgradeTermlog:

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug dist-upgrade i386 lucid

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https://bugs.launchpad.net/bugs/964077

Title:
  can not update from bodhi (ubuntu 10.10 remix) to ubuntu

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  just as the title says when I try to convert bodhi linux (ubuntu
  remix) into ubuntu,it says as following:

  sudo do-release-upgrade
  Checking for a new ubuntu release
  Done Upgrade tool signature
  Done Upgrade tool
  Done downloading            
  authenticate 'maverick.tar.gz' against 'maverick.tar.gz.gpg' 
  extracting 'maverick.tar.gz'
  tar: Removing leading `/' from member names

  Reading cache

  Checking package manager
  Reading package lists... Done
  Building dependency tree        
  Reading state information... Done
  Building data structures... Done 
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 

  Updating repository information
  WARNING: Failed to read mirror file

  Third party sources disabled

  Some third party entries in your sources.list were disabled. You can 
  re-enable them after the upgrade with the 'software-properties' tool 
  or your package manager. 

  95% [Working] 
  Checking package manager
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 

  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade: 
  The package 'update-manager-core' is marked for removal but it is in 
  the removal blacklist. 

  This can be caused by: 
  * Upgrading to a pre-release version of Ubuntu 
  * Running the current pre-release version of Ubuntu 
  * Unofficial software packages not provided by Ubuntu 

  If none of this applies, then please report this bug against the 
  'update-manager' package and include the files in 
  /var/log/dist-upgrade/ in the bug report. 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: update-manager 1:0.134.12.1
  ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  Architecture: i386
  Date: Sat Mar 24 15:06:52 2012
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=
   /apps/update-manager/show_details=false
   /apps/update-manager/show_versions=false
  InstallationMedia: Bodhi Linux - Release i386
  PackageArchitecture: all
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  VarLogDistupgradeTermlog:

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