Can a 32 bit daemon be run on 64 bit linux

Question

A simple question (maybe) can a daemon coded and compiled as 32-bit be run on a 64-bit linux distro? I haven't seen the info anywhere where it can't be.

Your major problem will be that the distro will probably only have a very minimal set of 32-bit libraries available. — millimoose, Jun 26 '13 at 21:08

score 4 · Answer 1 · answered Jun 26 '13 at 21:07

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Yes, you can run 32-bit processes on a 64-bit Linux system. There's nothing special about daemons.

answered Jun 26 '13 at 21:07

Carl Norum

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score 0 · Answer 2 · answered Jun 26 '13 at 21:44

It depends both on architecture support (i.e. executing both 64-bit and 32-bit code) and on specific linux support (providing system calls to both 64-bit and 32-bit code). For amd64 linux, both are true. See, for example:

https://help.ubuntu.com/community/MultiArch

Similarly, ARMv8 supports both 32-bit and 64-bit modes:

https://en.wikipedia.org/wiki/ARMv8#ARMv8_and_64-bit http://www.arm.com/files/downloads/ARMv8_Architecture.pdf

score 0 · Answer 3 · edited Jul 07 '13 at 20:42

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As long as the shared libraries are available in 32-bit, then a 32-bit daemon will run on a 64-bit Linux.

edited Jul 07 '13 at 20:42

Flexo

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answered Jul 07 '13 at 20:01

Rayson Ho

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Can a 32 bit daemon be run on 64 bit linux

3 Answers3