OS/2, eCS & ArcaOS - Technical > Applications

Implemented DUMPFS.IFS as a 32-bit IFS

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Lars:
Hallo,

I am referring to:
https://www.os2site.com/sw/drivers/filesystem/dumpfs.zip

As you might know, this package contains a modified OS2DUMP and a specialized IFS for supporting trap dumps.
I have now reimplemented the "DUMPFS.IFS" contained in that package as a 32-bit version. That means, it supports dumps > 2 GB. I have also added (minimum) EA support so that the partition contents properly display in the WPS and also on the commandline. Of course, you can also use PMDF.EXE on that dump file (without the need to copy it to another partition as was true for the original DUMPFS.IFS).

Additionally I have implemented some reduced write support so that you can copy a trap dump file to that dump partition. Of course, copying the dump file to another partition (for example, a JFS partition) also works.

Would anybody be willing to test ? It does still have a few quirks here and there but in principle it should work (at least, it does on my system).

I have limited its use to an LVM managed system (that is OS2DASD.DMD/OS2LVM.DMD , sorry, but original Warp3 or Warp4 are not supported) in order to have optimal read/copy/write throughput.

Just drop me a note if you want a test version.

OS4User:

--- Quote from: Lars on March 29, 2022, 08:09:09 pm ---I have now reimplemented the "DUMPFS.IFS" contained in that package as a 32-bit version.

--- End quote ---

Hi Lars

I have just tested your excellent 32bits DUMPFS.IFS.  It works ok for me on OS/4 kernel with dump created by os4dump.

Lars:
Thanks !

If you find something that does not work, just drop a note and I'll try and fix it.

Doug Bissett:
Please note, that ArcaOS (5.0.6 and up) now dumps to a FAT32 volume. It must be labled SADUMP, and be large enough to contain all of memory, plus a bit. I suggest that you do not try this with the ArcaOS versions that do use FAT32. It is a different dump program.

OS4User:

--- Quote from: Doug Bissett on May 02, 2022, 08:08:39 pm ---...ArcaOS (5.0.6 and up) now dumps to a FAT32 volume...

--- End quote ---

It depends which os2dump is being used.

DumpFS.ifs is invented to make os2dump as simple as possible.

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