> On 26 Nov 2020, at 13:02, Gregory Nowak <greg@???> wrote:
>
> On Wed, Nov 25, 2020 at 05:34:16PM -0700, Fred wrote:
>> I think Debian Jessie is 32 bit. To upgrade to Beowulf I just followed
>> instructions that didn't say anything about 32 or 64. I just assumed
>> Beowulf was 64 bit.
>
> Debian jessie was available in i386 and amd64 as far as I recall.
>
>>
>> My CPU appears to be able to do 64 so how do I change over?
>
> Probably the easiest way is to do a fresh 64 bit install of
> Beowulf. There might be a way to do a migration through dpkg
> --add-architecture, but I'm not sure about that.
>
> Greg

The debian wiki has an article on doing this transition.
https://wiki.debian.org/CrossGrading

It also mentions a new package debian-crossgrading from google summer of code 2020 that appears to automate some of this.
https://salsa.debian.org/crossgrading-team/debian-crossgrading