Update (07-09-2025): The customized bootable ISO media has been enhanced with MultiMedia and TCP/IP 2.x (with corresponding UN64092 update) installation options.

As seen in the byte size of the kernel illustrated in the first picture above, this is the real kernel for OS/2 SMP v2.11 supporting up to 16 CPU/CORES; the second picture shows, side-by-side comparison, likely the last updated kernels for OS/2 SMP v2.11 supporting up to 16 and 8 CPU/CORES, each, contained in individual virtual diskettes as seen under larger resolution in Warp 3.

You will not find these OS/2 SMP v2.11 kernels in some of the Compaq CD media sets still being sold around with OS/2 for SMP v2.11.

The ensuing images, 3, 4, etc., show the OS/2 for SMP v2.11 installation from an HPFS386 crafted Bootable ISO media into an Oracle VirtualBox type 2 hypervisor which is supported in multiple operating systems. Personally, I build VirtualBox from source in my Linux Debian environment.

Notice that this Bootable OS/2 for SMP ISO image has additionally been hacked with HPFS386 which is -- optionally -- added after the successful installation of the OS/2. Caveat: after enhancing your regular HPFS file system with HPFS386 you will still be able to read but not be able to copy data when mounting your OS/2 slice under Linux, i.e.,

"HPFS386 on OS/2 server is not supported. HPFS386 installed on normal OS/2 client should work. If you have OS/2 server, use only read-only mode. I don’t know how to handle some HPFS386 structures like access control list or extended perm list, I don’t know how to delete them when file is deleted and how to not overwrite them with extended attributes. Send me some info on these structures and I’ll make it. However, this driver should detect presence of HPFS386 structures, remount read-only and not destroy them (I hope)."

Please, see kernel org html doc v5.16 on filesystems hpfs reference.

I include the original legacy, non-modified, base CDROM media of a regular OS/2 2.1 on which this software hack was relatively built upon.

Please note that OS/2 for SMP v2.11 has a maximum 640x480x16 resolution. Although I have successfully installed VGA GRADD077 driver (possibly the lowest common denominator with Warp 3), I have not succeeded in installing the 1024x768 resolution driver, as VirtualBox has a 'weird' chipset unintelligible by OS/2 non-GRADD.

In summary, this OS/2 for SMP v2.11 represents the monad, a rare glimpse even for technology veterans, the archetype for subsequent OS/2 Warp 3 and 4 for SMP, eBusiness WSeB SMP, and the last OS/2 'indigitalizations' as eCS and ArcaOS.

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