Reference from: How to identify correct Oracle Database software to install on Linux platform (Doc ID 787705.1)
Linux x86: (32-bit OS) $ uname-a
If Linux Kernel architecture contains "i386 or i686 or x86", then this platform would be referred as "Linux x86". Please ensure so downloading/installing the Oracle Database Software Installation Kit that is released for "Linu X x86 ".
Linux x86_64: (64-bit OS) $ uname-a
IF Linux kernel architecture is "x86_64" and then your platform would be referred as "Linux x86_64" (or Linux AMD64 or Linux E M64T or Linux amd64/em64t or Linux x86_64 (AMD64/EM64T)). Please ensure so downloading/installing the Oracle Database Software Installation Kit that is released for "Linu X x86_64 ".
Note for 11gR2: ' Oracle Database Client 11gR2 released for Linux x86 ' is supported on ' Linux x86_64 '. Refer Point Innote 884232.1.
Linux Itanium: (64-bit OS) $ uname-a
IF Linux kernel architecture is "ia64" and then your platform would be referred as "Linux Itanium". Please ensure so downloading/installing the Oracle Database Software Installation Kit that is released for "Linu X Itanium ".
IBM Power Based Linux: (64-bit OS) $ uname-a linux stuze22 2.6.9-34.0.1.0.11.el #1 SMP Mon Dec 4 16:10:42 PST 2006 pp C64 PPC64 PPC64 Gnu/linux
IF Linux kernel architecture is "PPC64" and then your platform would be referred as "' IBM Power Based linux ' or ' Linux on Pow Er ' ". Please ensure so downloading/installing the Oracle Database Software Installation Kit that is released for "IBM Power Based Linux "or" Linux on Power ".
IBM zSeries Based Linux: (64-bit OS) $ uname-a linux pazxxt12 2.6.16.46-0.12-default #1 SMP Thu may 14:00:09 UTC 2 007 s390x s390x s390x Gnu/linux
If Linux kernel architecture is "s390x" and then your platform would be referred as "IBM zSeries based Linux" or "Zlinux". Please ensure so downloading/installing the Oracle Database Software Installation Kit that is released for "IBM ZSeries based Linux "or" Zlinux ".
IBM s/390 Based Linux (31-bit): (31-bit OS) $ uname-a linux pazxxt10 2.4.21-50.el #1 SMP Tue May 8 17:10:38 EDT 2007 s390 s390 s390 Gnu/linux
If Linux kernel architecture is ' s390 ' (but not s390x), then your platform would be referred as "IBM s/390 based Linux (31 -bit) ". Please ensure so downloading/installing the Oracle Database Software Installation Kit that is released for "IBM s/390 based Linux (31-bit) ". 10GR1 (10.1.0.x) is the last/terminal Oracle Database release for this platform
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