CentOS Linux 7 32-bit x86 (i386) Architecture Released

Tuesday , 13, October 2015 Johnny Hughes altarch, announcement, distro, i686 27 Comments

The Alternative Architecture Special Interest Group (AltArch SIG) is happy to announce the release the x86 32-bit version of CentOS Linux 7. This architecture is also known as i386 or i686. You can get this version of CentOS from the INFO page.

This version of CentOS Linux 7 is for PAE capable 32 bit machines, including x86 based IOT boards similar to the Intel Edison. It joins the 64-bit ARMv8 (aarch64) architecture as a fully released AltArch version.

Work within the AltArch SIG currently continues on the 32-bit ARMv7, 64-bit PPC little-endian, and 64-bit PPC big-endian architectures.

27 thoughts on “ : CentOS Linux 7 32-bit x86 (i386) Architecture Released”

Zdenek Sedlak says:

October 14, 2015 at 8:19 am

Guys, you made my day brighter! Now I can update my 32b machines running C6.

A really really good job, appreciated!

//Z

a1 says:

October 14, 2015 at 4:32 pm

What about epel-7-i386?

Johnny Hughes says:

October 14, 2015 at 9:22 pm

Hopefully Fedora will start building EPEL for CentOS-7 i386 .. but that is not something that the CentOS Project controls.

Reply
- Eric says:
  
  August 5, 2016 at 3:04 am
  
  Anybody know if epel-7-i386 is available anywhere? Tried to install 64-bit epel 7 and 32-bit epel 6 and they both failed for different reasons.
  
  Reply
  - stduolc says:
    
    January 30, 2017 at 2:58 pm
    
    hi, do you find it now? It's 2017.
    
    Reply

Abr4cks says:

October 19, 2015 at 12:04 pm

Congratulations for the work

Fredy says:

October 30, 2015 at 8:58 pm

Thanks, trying to install on VMWare Workstation 12 (both minimal and full) but no network card appears 🙁

Akemi Yagi says:

November 6, 2015 at 5:44 pm

Which network driver is provided for 32-bit guests? You may want to use one of the support venues (forums, mailing list, etc) to get help.

Reply

gardenair says:

November 7, 2015 at 2:20 am

I am happy to know that there is CentOS 7 for 32 bit machines. I want to know that can we use this version on a production environment ?

Dennis Leiterman says:

November 11, 2015 at 12:09 pm

Great!!! Thanks to everyone that made this happen. I am stuck with 32 bit visualization on a few machines and was forced to stay at Centos 6.7. This is very great news. Just built my first 32 bit Centos 7 virtual machine and it works great...thanks again!!!!

makarspb says:

November 17, 2015 at 8:32 pm

Thank you!

Wade Hampton says:

November 20, 2015 at 3:08 pm

Thanks. This gives us a simpler upgrade path to CentOS 7! I also look forward to using it with embedded systems.

Vitaliy says:

November 23, 2015 at 4:30 pm

How about repos for this architecture?

Karsten Harder says:

December 1, 2015 at 2:11 pm

I'm having trouble downloading and burning the ISO files. And the sha256 values don't add up. Please help. How about a torrent option?

Nishith says:

December 2, 2015 at 1:56 pm

Reinstalling...

RockyS says:

December 11, 2015 at 11:41 am

Thank you very much guys!!! 🙂

Chris says:

December 25, 2015 at 6:48 am

Thank You very very much guys!! Just made my life easier

papitshen says:

January 25, 2016 at 12:09 am

please help just done installing unfortunately i cannot see my interfaces please helpppppp

digitalfredy says:

March 19, 2016 at 6:00 pm

No ath5k wi-fi support, neither standard or plus kernel:

[root@nb100-lan ~]# uname -r
3.10.0-327.10.1.el7.centos.plus.i686
[root@nb100-lan ~]# modprobe ath5k
modprobe: FATAL: Module ath5k not found.

And please put the repo in the i386 installer, I waste my time using standard repos syntax

Huaqing Zhan says:

May 19, 2016 at 6:19 pm

I installed the CentOS-7-i386-Everything-1511, but when I reboot the system, it is only showing one CPU, the machine is a HP ProLiant DL380 Gen9 server, which has a Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz processor, and has 8 cores, and hyper-threading is enabled in the BIOS, so the OS should see total of 16 CPUs, but it is only showing one CPU. The following messages are from the /var/log/messages file:
May 19 11:33:12 swcentos7-rte kernel: Linux version 3.10.0-327.el7.i686 (mockbuild@worker1.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC) ) #1 SMP Fri Dec 4 17:52:05 UTC 2015
May 19 11:33:12 swcentos7-rte kernel: smpboot: CPU0: Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz (fam: 06, model: 3f, stepping:
May 19 11:33:12 swcentos7-rte kernel: Hierarchical RCU implementation.
May 19 11:33:12 swcentos7-rte kernel: #011RCU restricting CPUs from NR_CPUS=32 to nr_cpu_ids=1.
May 19 11:33:12 swcentos7-rte kernel: #011Offload RCU callbacks from all CPUs
May 19 11:33:12 swcentos7-rte kernel: #011Offload RCU callbacks from CPUs: 0-31.
May 19 11:33:12 swcentos7-rte kernel: smpboot: Total of 1 processors activated (5193.97 BogoMIPS)
May 19 11:33:12 swcentos7-rte kernel: NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 1/0x1 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 2/0x2 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 3/0x3 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 4/0x4 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 5/0x5 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 6/0x6 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 7/0x7 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 8/0x8 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 9/0x9 ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 10/0xa ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 11/0xb ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 12/0xc ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 13/0xd ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 14/0xe ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number
May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached. Processor 15/0xf ignored.
May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number

Akemi Yagi says:

August 28, 2018 at 6:11 pm

For those who got here through search, there is a fix in the following CentOS bug tracker entry:

https://bugs.centos.org/view.php?id=10892

Reply

Alexandr says:

December 25, 2016 at 9:06 am

Tell me please where we can see what program minimum version 7 and in others?

Benhaddi Abderrahman says:

October 11, 2017 at 10:58 pm

I downloaded "CentOS-7-i386-Everything-1611.iso" three times and eatch time the verification with winmd5 answer: "Not Matched" I don't know how to obtain a valid one.
Please help me.

Anssi Johansson says:

October 24, 2017 at 7:00 pm

Although I don't know the program, the name "winmd5" suggests it uses MD5 hashes for checking the image. The published hashes are SHA256.

Here are all the hashes:
CentOS-7-i386-Everything-1611.iso
MD5: 574d863fc4ed0e6a5441d88495a293f7
SHA1: ab849b047459dc3ea2bfeb065cafb01a5d3b9ceb
SHA256: 578a475248ecef427269357b7ff22b973a007f534988f39f365b8dded43fad72

CentOS-7-i386-Everything-1708.iso
MD5: 54df90d489072f3a2561a764f050b69e
SHA1: d7a8f713d60bc934dca22f3525d09034e4af3c16
SHA256: e118987646ca5e916a1cdc89e916ea64bd06e1c09564721a13ad90b0caffd4b2

Although I'd suggest using the DVD image instead of Everything (both will work just fine, but Everything is extra download):
CentOS-7-i386-DVD-1708.iso
MD5: 481acc50cb8f271f40f57d3f75dca942
SHA1: 08326c9d1704bc875f517b6806715ffc4ceef745
SHA256: 36df0a7d687e058ec11708ccace7981fe2faf1040d4efd796a4ffab67863eace

Reply