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Re: Going to 64bit

I asked a similar question a few months ago, and based on the responses that I got came to the conclusion that a "nuke and pave" would be the only way to be sure. I haven't done it yet, but I will likely install to a different drive and preserve my old install.

Someone recommended a web page for a marginally dodgy method for trying to pull this off, but I decided to just start over.

Now just to find the time to do it. :)


On Wed, Dec 14, 2011 at 10:42 AM, Sven Joachim <svenjoac@gmx.de> wrote:
On 2011-12-14 15:04 +0100, David Baron wrote:

> I have a 64-bit Intel CPU but have been gleefully running my 32-bit Sid on it.
> Can one install the 64-bit kernel and upgrade other packages piecemeal or must
> one do it all in one go?

You have to install from scratch.  If you want to minimize downtime,
create your new installation with debootstrap.  Crossgrading is not
supported, for instance installing the amd64 libc6 over the i386 one
will remove /lib/ld-linux.so.2.

> In other words: Will all/most/some/none 32-bit
> programs work with it?

32-bit programs continue to work if you install the ia32-libs package or
use an i386 chroot for them.

> (Has the new multiarch organization made this easier?)

It will spare you the ugly ia32-libs package, but crossgrading is still
not possible.  Yours truly attempted it, and dpkg refused to replace the
i386 libc-bin with the amd64 version¹.


¹ http://lists.debian.org/debian-dpkg/2011/12/msg00023.html

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