Convert FC27.i686 (existing) to FC27.x86_64(new).

[Ger van Dijck]

Hi All ,


Is there a possibility to convert an existing FC27.i686 to FC27.x86_64 OS ?

I installed long agoo the i686 architexture on elder machines and did  
proceed doing so on 64 Bits and PAE capabel machines .

Now I intent to switch from i686 to x86_64 : So the question is , can I do  
so only by a fresh install ,
or is there an "easier" way ?


Regards ,

Ger van Dijck.
-- 
Gemaakt met Opera's e-mailprogramma: http://www.opera.com/mail/

[Roger Heflin]

I don't believe there really is an easier way.

You can download a kernel.org kernel or the fedora kernel source and
built it to be 64-bit and boot that on a 32-bit userspace and that
will get you around some kernel memory/resource limits, I did that
previously on one of my machines for 6-12 months before doing a clean
reinstall to 64-bit.

I dont know if you can convince dnf to install a 64-bit fedora kernel
on 32-bit userspace, if you can and it boots and it has the right
settings compiled in the kernel by default then that kernel will work
with a complete 32-bit userspace.

On Thu, Dec 14, 2017 at 9:16 AM, Ger van Dijck <ger.vandijck(a)dommel.be&gt; wrote:
>
> Hi All ,
>
>
> Is there a possibility to convert an existing FC27.i686 to FC27.x86_64 OS ?
>
> I installed long agoo the i686 architexture on elder machines and did
> proceed doing so on 64 Bits and PAE capabel machines .
>
> Now I intent to switch from i686 to x86_64 : So the question is , can I do
> so only by a fresh install ,
> or is there an "easier" way ?
>
>
> Regards ,
>
> Ger van Dijck.
> --
> Gemaakt met Opera's e-mailprogramma: http://www.opera.com/mail/
> _______________________________________________
> users mailing list -- users(a)lists.fedoraproject.org
> To unsubscribe send an email to users-leave(a)lists.fedoraproject.org

[Roberto Ragusa]

On 12/14/2017 04:28 PM, Roger Heflin wrote:
>  I don't believe there really is an easier way.
>  
>  You can download a kernel.org kernel or the fedora kernel source and
>  built it to be 64-bit and boot that on a 32-bit userspace and that
>  will get you around some kernel memory/resource limits, I did that
>  previously on one of my machines for 6-12 months before doing a clean
>  reinstall to 64-bit.
>  
>  I dont know if you can convince dnf to install a 64-bit fedora kernel
>  on 32-bit userspace, if you can and it boots and it has the right
>  settings compiled in the kernel by default then that kernel will work
>  with a complete 32-bit userspace. 
Why not just using a Fedora 64 bit kernel? You
can hammer rpm enough
to let you install that, and you get the 64 bit kernel + 32 bit userspace;
I did that years ago.
Then, after a while I converted some packages to 64 bit by replacing
some rpms with 64 bit versions. Then, my definition of "some" got expanded
to the entire distribution, and I got a fully 64 bit system out of what was
originally 32 bit. Not easy but possible. (anyway, the original post
asked for an easier way than a reinstall, so I don't advice doing this)

-- 
   Roberto Ragusa    mail at robertoragusa.it

[Rick Stevens]

On 12/15/2017 08:18 AM, Roberto Ragusa wrote:
>  On 12/14/2017 04:28 PM, Roger Heflin wrote:
> > I don't believe there really is an easier way.
> >
> > You can download a kernel.org kernel or the fedora kernel source and
> > built it to be 64-bit and boot that on a 32-bit userspace and that
> > will get you around some kernel memory/resource limits, I did that
> > previously on one of my machines for 6-12 months before doing a clean
> > reinstall to 64-bit.
> >
> > I dont know if you can convince dnf to install a 64-bit fedora kernel
> > on 32-bit userspace, if you can and it boots and it has the right
> > settings compiled in the kernel by default then that kernel will work
> > with a complete 32-bit userspace.
>  Why not just using a Fedora 64 bit kernel? You can hammer rpm enough
>  to let you install that, and you get the 64 bit kernel + 32 bit userspace;
>  I did that years ago.
>  Then, after a while I converted some packages to 64 bit by replacing
>  some rpms with 64 bit versions. Then, my definition of "some" got expanded
>  to the entire distribution, and I got a fully 64 bit system out of what was
>  originally 32 bit. Not easy but possible. (anyway, the original post
>  asked for an easier way than a reinstall, so I don't advice doing this) 
I tend to agree. Can you convert a 32-bit system to 64? Yes. Is it easy?
Nope. Invariably there's some cruft left over from the 32-bit
environment that will cause problems and confusion down the road.

I'd back up your /home stuff to external media, do a full 64-bit install
and restore what you need from the external media. As Kari from the old
MythBusters used to say, "It's safer that way."
----------------------------------------------------------------------
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- AIM/Skype: therps2        ICQ: 22643734            Yahoo: origrps2 -
-                                                                    -
-   Let us think the unthinkable. Let us do the undoable. Let us     -
-   prepare to grapple with the ineffable itself, and see if we may  -
-                      not eff it up after all.                      -
-                                                 -- Douglas Adams   -
----------------------------------------------------------------------

[JD]

On 12/15/2017 11:08 AM, Rick Stevens wrote:
>  On 12/15/2017 08:18 AM, Roberto Ragusa wrote:
> > On 12/14/2017 04:28 PM, Roger Heflin wrote:
> >> I don't believe there really is an easier way.
> >>
> >> You can download a kernel.org kernel or the fedora kernel source and
> >> built it to be 64-bit and boot that on a 32-bit userspace and that
> >> will get you around some kernel memory/resource limits, I did that
> >> previously on one of my machines for 6-12 months before doing a clean
> >> reinstall to 64-bit.
> >>
> >> I dont know if you can convince dnf to install a 64-bit fedora kernel
> >> on 32-bit userspace, if you can and it boots and it has the right
> >> settings compiled in the kernel by default then that kernel will work
> >> with a complete 32-bit userspace.
> > Why not just using a Fedora 64 bit kernel? You can hammer rpm enough
> > to let you install that, and you get the 64 bit kernel + 32 bit userspace;
> > I did that years ago.
> > Then, after a while I converted some packages to 64 bit by replacing
> > some rpms with 64 bit versions. Then, my definition of "some" got expanded
> > to the entire distribution, and I got a fully 64 bit system out of what was
> > originally 32 bit. Not easy but possible. (anyway, the original post
> > asked for an easier way than a reinstall, so I don't advice doing this)
>  I tend to agree. Can you convert a 32-bit system to 64? Yes. Is it easy?
>  Nope. Invariably there's some cruft left over from the 32-bit
>  environment that will cause problems and confusion down the road.
>
>  I'd back up your /home stuff to external media, do a full 64-bit install
>  and restore what you need from the external media. As Kari from the old
>  MythBusters used to say, "It's safer that way." 
I would also back up
configuration files in /etc to external media,
and restore them after installing the 64 bit OS,
including any files/dirs in /etc/default/

Good luck to the OP.

[Frank Elsner]

On Thu, 14 Dec 2017 16:16:53 +0100 Ger van Dijck wrote:
>  
>  Hi All ,
>  
>  
>  Is there a possibility to convert an existing FC27.i686 to FC27.x86_64 OS ?
>  
>  I installed long agoo the i686 architexture on elder machines and did  
>  proceed doing so on 64 Bits and PAE capabel machines .
>  
>  Now I intent to switch from i686 to x86_64 : So the question is , can I do  
>  so only by a fresh install ,
>  or is there an "easier" way ? 
Same here. My strategy (not yet done, still thinking about):

- Get a list of all installed packages to a save place
- Save all modified configs (maybe complete /etc)
- Do a fresh install of the x86_64
- Install all in the save package list
- Restore configs (from saved)

Can a guru tell us if this will result in the same system in 64bit architecture.

Cheers, 
         Frank