[Bug 240662] Re: no migration docu i386->amd64

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: installation-guide (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/240662

Title:
  no migration docu i386->amd64

Status in “installation-guide” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: installation-guide-amd64

  Hi,

  I just replaced the mainboard of a computer with ubuntu hardy, put in
  a brandnew board with an AMD X2 CPU and 4 GByte RAM.

  Unfortunately, the standard ubuntu kernel (*-generic) detects only 3
  of the 4 GByte RAM.


  I therefore tried to migrate to a 64 bit kernel. On my other system (Debian) this was easy: I just installed the *-amd64 kernel and a new libc, 
  and voila, 4G RAM available. 

  Under ubuntu, in contrast, the 64 bit kernel seems to be available in the amd64 distribution only, and not accessible from x plain 
  x86 installation. 

  
  Therefore, the docu should tell how to cross-upgrade a system from x86 to amd64 without a complete re-installation. Would be a hell of work to reinstall all those things running on that system.

  regards

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