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By that metric, it will be Android. The total install base of Macbooks is a rounding error compared to the number of Android phones. (>3 billion)

Wowfunhappy 4y ago
I don't think Android is an officially licensed version of UNIX though? (I wouldn't normally nitpick, but I assumed that's what was meant by "commercial UNIX".)
- lenkite 4y ago
  I don't get it. Isn't Darwin open source ?
  - agarren 4y ago
    macOS as of Leopard is “certified UNIX” (Single Unix Specv3). Darwin is the “Unix core” that macOS is built on, but it hasn’t been certified by itself[0]. [0] https://en.wikipedia.org/wiki/Darwin_(operating_system) https://en.wikipedia.org/wiki/Darwin_(operating_system)
  - sharikous 4y ago
    Darwin is just a bunch of source code dumps at this point. Gone are the days when Apple provided an actual bootable ISO.
    - mechanical_bear 4y ago
      Did they ever?
      - sharikous 4y ago
        yes, approximately until 10.4 Tiger: https://web.archive.org/web/20100303160410/http://www.opensource.apple.com/static/iso/ https://web.archive.org/web/20100303160410/http://www.openso... (importantly those links still work, even outside of the Wayback machine)
        mechanical_bear 4y ago
        Thanks for that!
- mrweasel 4y ago
  Neither is Solaris at this point. Oracle no longer renew their Unix certification for Solaris. Apple still has macOS certified though. https://www.opengroup.org/openbrand/register/ https://www.opengroup.org/openbrand/register/
  - Conan_Kudo 4y ago
    Ten years ago, Solaris was still a certified "UNIX" system.
georgyo 4y ago
Android is Linux, not Unix. Linux shares no code with Unixs. Solaris, BSD, Darwin all share code. Linux is POSIX compatible and userspace is similar, but the kernel is distinct.
- p_l 4y ago
  Darwin possibly shares still the few files identified from infamous Unix wars lawsuits, but it doesn't really share code with Solaris (which is System V)
- garren 4y ago
  It’s POSIX conforming but nobody, no distribution, has ponied up the money or taken the time to do the conformance testing necessary to get branded as UNIX. Additionally, it sounds like this testing would have to happen with every new release. Why spend all that money and time when Linux has so dominated the certified Unices for some time?
  - vbezhenar 4y ago
    Huawei EulerOS is a UNIX-certified Linux distribution.
    - KronisLV 4y ago
      > Huawei EulerOS is a UNIX-certified Linux distribution. Looked it up, here's the page for the OS: https://developer.huaweicloud.com/ict/en/site-euleros/euleros https://developer.huaweicloud.com/ict/en/site-euleros/eulero... And here's a news post about the certification: https://www.huawei.com/en/news/2016/9/huawei-kunlun-euleros-unix-certification https://www.huawei.com/en/news/2016/9/huawei-kunlun-euleros-... > [Shanghai, China, September 9, 2016] Today Huawei announced that its EulerOS 2.0 operating system for its KunLun mission critical servers has earned UNIX 03 certification from The Open Group. This means that Huawei EulerOS 2.0 has been officially certified as a UNIX system.
- msla 4y ago
  Linux is a kernel, so it can't be a Unix. Inspur K-UX, on the other hand, is a Linux distribution which is a Unix https://en.wikipedia.org/wiki/Inspur_K-UX https://en.wikipedia.org/wiki/Inspur_K-UX > Inspur K-UX 2.0 and 3.0 for x86-64 were officially certified as UNIX systems by The Open Group. [snip] > Inspur K-UX 2.0 was one of six commercial operating systems that have versions certified to The Open Group UNIX 03 standard (the others being macOS, Solaris, IBM AIX, HP-UX, and EulerOS). More: https://en.wikipedia.org/wiki/Unix https://en.wikipedia.org/wiki/Unix > Systems that have been licensed to use the UNIX trademark include AIX,[35] EulerOS,[36] HP-UX,[37] Inspur K-UX,[38] IRIX,[39] macOS,[40] Solaris,[41] Tru64 UNIX (formerly "Digital UNIX", or OSF/1),[42] and z/OS.[43] Notably, EulerOS and Inspur K-UX are Linux distributions certified as UNIX 03 compliant.[44][45] None of the Open Source BSDs are on that list.
garren 4y ago
Isn’t android a fork of the Linux kernel wrapped in a whole lot of Java? It unquestionably dominates its market, smart phones and it’s-a-laptop-and-definitely-not-a-netbook kind of devices, but even as a Linux variant, it seems very much in its own little world. Not the most popular commercial Unix implementation so much as the most popular OS ever, that also happens to be more Linux-like rather than Unix-like.
- okanat 4y ago
  Its primary interface with user/developer is indeed JVM based languages. However, Android is more than that. It is a capability-based microkernel-like OS implementation on top of Linux. Everything in Android goes through IPC. Every process is heavily isolated using SELinux and permissions including drivers.
pjmlp 4y ago
Nope, Android userspace has zero traces of UNIX, and its use of the Linux kernel is an implementation detail.
- mjg59 4y ago
  Zero? Bionic is derived from BSD libc, which surely has continuity back to Unix.
  - pjmlp 4y ago
    Only the ISO C standard library is part of the public API for Android apps, use anything else at the peril of having the app crash across devices or being killed by Android security measures that prevent access to private APIs. EDIT: To make it more explicit, given that people keep mistaking Android for Linux, "NDK C library" https://developer.android.com/ndk/guides/stable_apis#c_library https://developer.android.com/ndk/guides/stable_apis#c_libra... "Improving Stability with Private C/C++ Symbol Restrictions in Android N" https://android-developers.googleblog.com/2016/06/improving-stability-with-private-cc.html https://android-developers.googleblog.com/2016/06/improving-... "Android changes for NDK developers" https://android-developers.googleblog.com/2016/06/android-changes-for-ndk-developers.html https://android-developers.googleblog.com/2016/06/android-ch...
    - mjg59 4y ago
      The Android ISO C standard library is derived from the BSD libc, which is derived from the UNIX libc, so there's clear evidence of UNIX in Android userland.
blooalien 4y ago
Android isn't Unix. It's Linux. Linux is "Unix-like" but it's not Unix.
rainbowzootsuit 4y ago
"GNU's Not Unix!"
snotrockets 4y ago
Android isn't unix. It has a Linux kernel (which may or may not be unix, a combustible discussion I'd rather avoid), but the user space is definitely not.

Wowfunhappy 4y ago

I don't think Android is an officially licensed version of UNIX though? (I wouldn't normally nitpick, but I assumed that's what was meant by "commercial UNIX".)

lenkite 4y ago
I don't get it. Isn't Darwin open source ?
- agarren 4y ago
  macOS as of Leopard is “certified UNIX” (Single Unix Specv3). Darwin is the “Unix core” that macOS is built on, but it hasn’t been certified by itself[0]. [0] https://en.wikipedia.org/wiki/Darwin_(operating_system) https://en.wikipedia.org/wiki/Darwin_(operating_system)
- sharikous 4y ago
  Darwin is just a bunch of source code dumps at this point. Gone are the days when Apple provided an actual bootable ISO.
  - mechanical_bear 4y ago
    Did they ever?
    - sharikous 4y ago
      yes, approximately until 10.4 Tiger: https://web.archive.org/web/20100303160410/http://www.opensource.apple.com/static/iso/ https://web.archive.org/web/20100303160410/http://www.openso... (importantly those links still work, even outside of the Wayback machine)
      - mechanical_bear 4y ago
        Thanks for that!
mrweasel 4y ago
Neither is Solaris at this point. Oracle no longer renew their Unix certification for Solaris. Apple still has macOS certified though. https://www.opengroup.org/openbrand/register/ https://www.opengroup.org/openbrand/register/
- Conan_Kudo 4y ago
  Ten years ago, Solaris was still a certified "UNIX" system.

georgyo 4y ago

Android is Linux, not Unix. Linux shares no code with Unixs. Solaris, BSD, Darwin all share code. Linux is POSIX compatible and userspace is similar, but the kernel is distinct.

p_l 4y ago
Darwin possibly shares still the few files identified from infamous Unix wars lawsuits, but it doesn't really share code with Solaris (which is System V)
garren 4y ago
It’s POSIX conforming but nobody, no distribution, has ponied up the money or taken the time to do the conformance testing necessary to get branded as UNIX. Additionally, it sounds like this testing would have to happen with every new release. Why spend all that money and time when Linux has so dominated the certified Unices for some time?
- vbezhenar 4y ago
  Huawei EulerOS is a UNIX-certified Linux distribution.
  - KronisLV 4y ago
    > Huawei EulerOS is a UNIX-certified Linux distribution. Looked it up, here's the page for the OS: https://developer.huaweicloud.com/ict/en/site-euleros/euleros https://developer.huaweicloud.com/ict/en/site-euleros/eulero... And here's a news post about the certification: https://www.huawei.com/en/news/2016/9/huawei-kunlun-euleros-unix-certification https://www.huawei.com/en/news/2016/9/huawei-kunlun-euleros-... > [Shanghai, China, September 9, 2016] Today Huawei announced that its EulerOS 2.0 operating system for its KunLun mission critical servers has earned UNIX 03 certification from The Open Group. This means that Huawei EulerOS 2.0 has been officially certified as a UNIX system.
msla 4y ago
Linux is a kernel, so it can't be a Unix. Inspur K-UX, on the other hand, is a Linux distribution which is a Unix https://en.wikipedia.org/wiki/Inspur_K-UX https://en.wikipedia.org/wiki/Inspur_K-UX > Inspur K-UX 2.0 and 3.0 for x86-64 were officially certified as UNIX systems by The Open Group. [snip] > Inspur K-UX 2.0 was one of six commercial operating systems that have versions certified to The Open Group UNIX 03 standard (the others being macOS, Solaris, IBM AIX, HP-UX, and EulerOS). More: https://en.wikipedia.org/wiki/Unix https://en.wikipedia.org/wiki/Unix > Systems that have been licensed to use the UNIX trademark include AIX,[35] EulerOS,[36] HP-UX,[37] Inspur K-UX,[38] IRIX,[39] macOS,[40] Solaris,[41] Tru64 UNIX (formerly "Digital UNIX", or OSF/1),[42] and z/OS.[43] Notably, EulerOS and Inspur K-UX are Linux distributions certified as UNIX 03 compliant.[44][45] None of the Open Source BSDs are on that list.

garren 4y ago

Isn’t android a fork of the Linux kernel wrapped in a whole lot of Java? It unquestionably dominates its market, smart phones and it’s-a-laptop-and-definitely-not-a-netbook kind of devices, but even as a Linux variant, it seems very much in its own little world. Not the most popular commercial Unix implementation so much as the most popular OS ever, that also happens to be more Linux-like rather than Unix-like.

okanat 4y ago
Its primary interface with user/developer is indeed JVM based languages. However, Android is more than that. It is a capability-based microkernel-like OS implementation on top of Linux. Everything in Android goes through IPC. Every process is heavily isolated using SELinux and permissions including drivers.

pjmlp 4y ago

Nope, Android userspace has zero traces of UNIX, and its use of the Linux kernel is an implementation detail.

mjg59 4y ago
Zero? Bionic is derived from BSD libc, which surely has continuity back to Unix.
- pjmlp 4y ago
  Only the ISO C standard library is part of the public API for Android apps, use anything else at the peril of having the app crash across devices or being killed by Android security measures that prevent access to private APIs. EDIT: To make it more explicit, given that people keep mistaking Android for Linux, "NDK C library" https://developer.android.com/ndk/guides/stable_apis#c_library https://developer.android.com/ndk/guides/stable_apis#c_libra... "Improving Stability with Private C/C++ Symbol Restrictions in Android N" https://android-developers.googleblog.com/2016/06/improving-stability-with-private-cc.html https://android-developers.googleblog.com/2016/06/improving-... "Android changes for NDK developers" https://android-developers.googleblog.com/2016/06/android-changes-for-ndk-developers.html https://android-developers.googleblog.com/2016/06/android-ch...
  - mjg59 4y ago
    The Android ISO C standard library is derived from the BSD libc, which is derived from the UNIX libc, so there's clear evidence of UNIX in Android userland.

blooalien 4y ago

Android isn't Unix. It's Linux. Linux is "Unix-like" but it's not Unix.

rainbowzootsuit 4y ago

"GNU's Not Unix!"

snotrockets 4y ago

Android isn't unix. It has a Linux kernel (which may or may not be unix, a combustible discussion I'd rather avoid), but the user space is definitely not.