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Messages - Olafur Gunnlaugsson

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1
Storage / Re: How to make a disk drive for a distant computer
« on: March 20, 2020, 09:43:00 pm »
Or to simplify my last answer, the only other option I know is to send a raw partition or disk image file as there is a whole host of tools available for any OS that will write those to disk, with the caveat that Linux based and or Linux derived tools will usually write OS/2 partitions incorrectly to disk. Partitions must be copied in DOS/Windows style.

2
Storage / Re: How to make a disk drive for a distant computer
« on: March 20, 2020, 09:16:33 pm »
You have tried both sending a functional drive and an image previously? Or have you only sent an image?

I cannot really comment on this as I have never had any computer fail to boot from a DFSEE cloned drive that is within the boot specifications of the target computer in regards to disk size or geometry.

What occasionally happens is that if I send a partition image to a third party they will incorrectly copy the partition onto a drive with incorrect partition settings, the usual partition not marked active or bootable etc, incorrect alignment on an SSD etc.

I have solved this either by sending them a compressed disk image for a drive slightly smaller than the drive that is going to be used on the other end, rather than a partition image, this ensures that the partitions are written to the drive as found. The other option is to make them install Air-Boot as it can force boot the image regardless of it is partition settings.

The only other problems I have ever encountered are embedded BIOS's from a company called Insyde, used in Axiom industrial computers and 10Zig (Clientron) Thin Clients for instance. They both have incompatibilities with standard BIOSes when it comes to booting especially if they are used in conjunction with eMMC and also weird BIOS boot lockdowns intended to ensure you only use HDD's and software from the original supplier.

But as I said, I regularly clone OS/2 drives and partitions here for testing back and forth on hardware ranging from Cyrix based thin clients from the late 90's with tiny featureless embedded BIOSEs , to modern Xeon hardware with UEFI and never seem to have any problems going backwards and forwards regardless of hardware, with the obvious caveats about configuration setting.

There may be other options available, send them a VBox image converted to raw, transfer that to hd using rufus? YMMV but works for me with some caveats ...

3
Applications / Re: DOS VDM and Win-OS2 Fans ?
« on: March 18, 2020, 08:02:12 am »
Having worked on eCS, the fact seamless WIN/OS2 sessions do not work has been the case since eCS. The cause is VSVGA.SYS. It does not matter if you install SNAP, Panorama or GRADD they all use the same VSVGA.SYS driver. Its pretty complex driver VSVGA.SYS that relies on the VESA BIOS/VGA hardware. It just seems not all support in around that VSVGA.SYS is looking for.

Roderick

Has nothing to do with eCS per se, it is simply a hardware issue, screen sizes have changed and the VSVGA driver has not been updated or re-written to comply with newer screen geometries. I can run DOS/Win sessions just fine here with eCS 2.1 but I have to choose a vintage screen geometry and have a screen that supports it, some NEC LCD's have excellent support for odd/vintage geometries, but they tend to be expensive.

VSVGA does support some high resolutions above UXGA (1600x1200), such as 3k for instance and possibly QSXGA (5:4) if I remember it correctly, but that is using geometries that are normally not supported on modern hardware. (IBM had a 3K screen for sale in the 90's, used for medical research etc., it had Win, AIX and OS/2 drivers.)

4
Hardware / Re: OS/2 and the Mainframe
« on: March 10, 2020, 06:27:17 pm »
Regarding earlier post
Early Unisys SCAMP on a card here:
http://www.retrocomputingtasmania.com/home/projects/unisysaseries

People forget how much OS/2 support there was by Unisys

Some info on SCAMP, but with lots of factually incorrect information:

http://www.cpushack.com/2015/04/18/the-forgotten-ones-unisys-scamp-d-mainframe/

5
Hardware / Re: OS/2 and the Mainframe
« on: March 10, 2020, 01:08:40 am »
There was also a Unisys "Clearpath on a Card" that worked with OS/2 v1x

6
Marketplace / Re: ebay Stuff
« on: March 03, 2020, 01:28:41 pm »
Business cards and whatnot shapes were around. Fortunately this madness didn't last long. Some bands released some music on these, but mostly just novelty items that were not meant for use :D

Business card CD's are still a thing

http://www.cdr-business-cards.co.uk/

They will survive a high speed drive unlike some of the more interesting shapes did, not to mention thin walled DVD-RW's that exploded if you tried to write to them at high speeds

7
Marketplace / Re: ebay Stuff
« on: March 01, 2020, 10:06:36 am »
It is the first time I see a "Software Choice" box. I guess it is in Japanese or Chinese, but I haven't even saw this one in English.

It is in Japanese, Chinese would be in simplified Chinese characters only, this is a mix of Kanji (Traditional Chinese characters) , rĊmaji and katakana, which are unique to Japanese.

8
Web applications / Re: FF 45.x and VIRTUALADDRESSLIMIT setting...
« on: February 25, 2020, 09:16:53 pm »
I only remember that I read on some gamers forum that Bulldozer even performs slightly better with only one core per unit active. In practice I can say that using 4 cores instead of 8 on my Bulldozer type of CPU makes close to no difference (Windows is busy rotating the hard disk and OS/2 is busy on choking and scheduling on that many cores).
That tells you how insanely good the AMD marketing is.

I cannot speak for your setup, but on mine performance degrades on both eCS and windows if I disable the secondary cores this is especially noticeable in Win10-64, and on well multithreaded tasks such as as OCR the difference is striking, over 40%. And citing games benchmarks that do limited multithreading, and no application to OS/2 is odd.

My point still stands, AMD cores do real work, Hypercores do not, and in fact they mess timing up if you use any sort of application or drivers that require RT response.

The second point is that people on here are advising someone that has a computer that has neither Hyperthreading nor CMT, to adjust his CMT settings in response to a problem. If you lot fail to see the stupidity there, then there is little hope of seeing it elsewhere ...

9
Web applications / Re: FF 45.x and VIRTUALADDRESSLIMIT setting...
« on: February 25, 2020, 01:32:17 pm »
Have you ever tried to reduce your number of cores to one core per package/unit ? The BIOS should allow this and I would expect that fixes your stability problems. That will leave you with 3 cores which is no loss, really. At least the Bulldozer architecture is offering miserable performance gain from the "hyperthreading" (AMD names this differently but it is the same thing). There are just too many HW components being shared amongst two cores of a common package/unit or whatever they call it.

He uses a Phenom II X6 with 6 full Int/FPU cores, no hyperthreading in sight. PII X6 is not a Bulldozer but a K10 architecture, and Ryzen has hyperthreading while Bulldozer has not but rather CMT (Clustered Multi Threading) where the secondary core does not have a FPU unit so some tasks are not assigned to the secondary core, but it is still a full core rather than the fake core hyperthreading offers, e.g. a 6x Bulldozer core has 6 integer units but only 3 floating point ones. That people believe that CMT is the same as Hyperthreading just tells you how insanely good the Intel marketing division is.

10
Programming / Re: Trim command
« on: January 28, 2020, 10:24:29 pm »
Maybe trimming support was introduced in NTFS and FAT32 with later WinXP service packs?
You cannot trim if you don't know what sectors are used or not.
It was introduced in a Vista service pack, and initially at the least only for NTFS, no idea if it is supported in xFATx by MS. It is still a manual process on NFTS by the way, the OS does not trim the drive unless you ask it.

P.S. It is not just SSD's, shingled hard drives from WD and Toshiba also support the Trim command, makes sense on a shingled drive if you think about it. The WD shingled drives are usually large "archive" drives, while Toshiba shingled drives are usually small budget 2.5 external drives.

11
Programming / Re: Trim command
« on: January 28, 2020, 12:39:34 pm »
If a tool is used,then the FS will still need explicit support for trimming (knowing or finding the blocks to trim).

No, witness the WinXP era NTFS/FAT32 TRIM tools supplied by the likes of Samsung

12
Setup & Installation / Re: Airboot & GPT
« on: January 25, 2020, 08:01:30 pm »
On a system I have two hdd's, one MBR with ArcaOS and one GPT with Win10. Airboot skips GPT disks so it can't boot Win10.
AFAIK the GPT disk has to be converted to MBR for Airboot to see it. Has anyone tried EaseUS Partition Master which claim to keep all data/partitioning on the GPT disk intact, or does anyone have another solution?

I might be misunderstanding this but why do you need to control the boot on the GPT disk via airboot? Why do you not simply use the boot manager built into the UEFI/BIOS and choose GPT/UEFI or BIOS/MBR on startup as needed?

13
Hardware / Re: Panasonic Toughbook CF-19
« on: November 24, 2019, 12:53:33 am »
Tried to look if someone has had success with Toughbooks ... Specifically Toughbook CF-19 MK3 SU9300. To my eyes it seems that ArcaOS should run without a problem on this machine?

Not with this specific model, but apart from possible BIOS issues like the poster above encountered, the hardware on the MkIII is bog standard and should not create any major issues for the OS.

14
Hardware / Re: Panasonic Toughbook CF-19
« on: November 24, 2019, 12:49:19 am »

And cheat I will! Big time and as nerdy as I can: I have already prepared a VM with ArcaOS and hard drive and RAM size as it is buit in the notebook. Also HDD type is IDE in my case. Then I`ve created a disk image with Norton Ghost, and told it to split images into 80 MB pieces. (Done that today.)

Tomorrow I will copy these image pieces to Iomega ZIP100 disks via IDE_ZIP100. Then attaching the Toughbook to it`s docking station (since that one comes with LPT support) Then booting Norton Ghost from floppy on the Toughbook and with the help of an Iomega ZIP100_LPT I will then restore the images onto the Toughbook CF-M34 MK1. So far the plan..


That is a bit convoluted, why not just use DFSee to convert and copy the VM file to the IDE?

15
Programming / Re: Porting Lilypond to OS/2 - eCS - Arca Noae
« on: November 06, 2019, 09:57:51 am »
Given that LilyPond is more of an engraving program than a traditional notation program and thus not very user friendly would something like MuseScore not make more sense? Or does that have even more dependencies?

BTW. For those with not very advanced needs when it comes to notation, old versions of Personal Composer run fine under OS/2, 16 bit version under WinOS/2 and 32 bit versions PE'ised.

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