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Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/09 14:25:25
by spitchai
Hi,

Thanks again for the responses.

The processor used is IntelĀ® EP80579 Integrated Processor Tolapai SoC. To add, later version of Intel processor's(64bit enabled) are also used in our architecture, however our legacy core applications/interfaces are developed in 32bit. Hence we would like to know if there is a CentOS 8 32bit availability.

Thanks,
Sundar.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/09 15:09:00
by avij
A common misconception is that you need to use the 32bit version of CentOS to run 32bit applications. The truth is that you can run those 32bit apps on regular x86_64 CentOS if you have the 32bit libraries installed, ie. glibc.i686.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/09 15:15:54
by spitchai
Hi,
I completely agree 32 bit applications can be executed on 64bit systems. But in our scenario the applications/(complex)legacy interface layer(includes modules) are 32bit , which need to have a migration/adaptation.
Thanks,
Sundar.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/09 15:43:18
by TrevorH
As said, the current plan is that there will not be a 32 bit Intel architecture CentOS 8.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/09 15:47:40
by spitchai
Hi TrevorH,
Thank you very much for the confirmation.
In the meantime I will keep following CentOS 8 community, to know if there MAY be a change in plan.
Thanks,
Sundar.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/09 16:00:40
by hughesjr
We are not planing to release i386 for CentOS-8. There will be 32-bit multilib packages but not an i386 release. At least that is the plan and will be what happens at the beginning.

As with anything else .. if enough people need this arch and if we can make it work, it could be possible in the future. But, even Fedora is stopping i386 releases .. when that happens, none of our upstream source code will be done with anything other than multilib in mind.

So, something unexpected would need to happen for i386 to be released.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2019/07/11 12:43:05
by spitchai
Thank you very much hughesjr/TrevorH for the response.

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2020/01/23 19:39:31
by harrywangca
Hi hughesjr,

Yes, you are right. I have tried loading 64 bit CentOS 7 with multilib package which has 32-bit libraries onto my 64-bit hardware. After that I can run any 32-bit application based on it. In the future if CentOS 8 does the same way, that will be really great!!

Thanks,
Harry

Re: CentOS 8 AltArch (32-bit Intel)

Posted: 2020/01/24 10:27:36
by jlehtone
The x86_64 CentOS 8 is already here and does have 32-bit multilibs:

Code: Select all

# dnf -q list glibc
Installed Packages
glibc.x86_64                          2.28-72.el8                          @BaseOS   
Available Packages
glibc.i686                            2.28-72.el8                          BaseOS
Back in the day, when 64-bit was still new, Red Hat-based x86_64 install did include the i386 multilibs by default. Plenty of applications did not have x86_64-version/port yet, so support for 32-bit was a must.

I remember that, because I used to wipe those multilibs out to get "pure 64" system. Cannot recall which major release changed the default to leave multilibs uninstalled (had confidence that most things are 64-bit).

Alas, there are still third party applications, for example with 32-bit installer even though app itself is 64-bit ... :roll: