Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bret Johnson
> maybe virtual 512 byte sectors are actually not that evil: > Imagine a NORMAL 4096 byte sector based FAT32 filesystem. > ... Actually they are, or at least potentially are, at least from a compatibility perspective. In the case of USB, the SCSI protocol is normally used. The sector size is n

Re: [Freedos-user] FreeDOS 1.1 boot process ends with "interrupt devide by zero" and system halt

2012-01-15 Thread dos386
Please try to empty FDCONFIG.SYS and FDAUTO.BAT, and re-add USEFUL things piece after piece ... and supply shot of the crash ... "it crashes AFTER the boot has finished" is NOT very informative. -- RSA(R) Conference 2012 M

Re: [Freedos-user] FreeDOS 1.1 released

2012-01-15 Thread dos386
> wish VMware's video feature would use standard codecs so > something could be posted to Youtube or Please provide your movies in OGV or WebM files, not Loo-Tube. > > - It fails to find any HD (see middle shot) > In the normal configurations or the dedication one? Both, but in "normal configura

Re: [Freedos-user] FreeDOS 1.1 boot process ends with "interrupt devide by zero" and system halt

2012-01-15 Thread Kenneth J. Davis
On Jan 15, 2012 6:04 PM, "Ralph Deffke" wrote: > > Thanx all, > > but as I said its impossible to figure out what driver is causing the problem, the sequence doesn't seem to be logical to fix the problem. > it crashes AFTER the boot has finished. > > I installed version 1,0 ( 0.87 beta ) with no p

Re: [Freedos-user] FreeDOS 1.1 boot process ends with "interrupt devide by zero" and system halt

2012-01-15 Thread Ralph Deffke
Thanx all, but as I said its impossible to figure out what driver is causing the problem, the sequence doesn't seem to be logical to fix the problem. it crashes AFTER the boot has finished. I installed version 1,0 ( 0.87 beta ) with no problem. tx ralph

[Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bertho Grandpied
> Hi Bret, Not Bret, but I'll provide answers to 2 of your points. > BPB CHS geometry differs - but does a disk with 4096 byte > sectors allow CHS based access at all? I hope it does not. you can't preclude it, it may for compatibility sake (at the int 13h interface). (big big snipping) > B

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Eric Auer
Hi Bret, maybe virtual 512 byte sectors are actually not that evil: Imagine a NORMAL 4096 byte sector based FAT32 filesystem. Each cluster and each FAT will be a multiple of 4096 byte in size, as will be the boot and fsinfo sectors. In FAT32 the root directory is just any directory, so like all

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bret Johnson
>> USBDRIVE does not try to "virtualize" the sector sizes as others are >> suggesting here as a possibility -- I figure doing that has the >> potential to cause as many problems as the alternative... > > Maybe you could make that configurable, so people can experiment > with virtual 512 byte sector

Re: [Freedos-user] FreeDOS 1.1 released

2012-01-15 Thread teo gum
2012/1/15 dos386 > > Other: > > >- CWSDPMI, VSM, DOSNTLFN, ... are in > >- INFOPAD, 7-ZIP, UNTGZ, HX/HDPMI32, MPXPLAY, FASM, CC386, FREEBASIC, > >ARACHNE, ... are NOT in ... what can you do with it when installed ? > As for the mpxplay copied it into /fdos/bin from the previous distribution. Or

Re: [Freedos-user] FreeDOS 1.1 released

2012-01-15 Thread teo gum
2012/1/15 dos386 > >would be nice to know how many people actually installed it > >successfully on a __REAL__ PC ;-) > I did and did it successfully. Yes, it did hang on the commandx but not mortally - for a while like some 2 minutes and then continued without problems. On a partition fat 32 -

[Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bertho Grandpied
New follow-up ! In response to : "Bret Johnson" Subj : MSDOS - increasing max sector size quoting myself (sorry!) : > According to Rudolf Loew, increasing maximum sector size in LoL of an > unpatched MSDOS will work up to 2048 byte sectors, not 4096 :( I have > not verified it for a fact. Wow

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bertho Grandpied
In response to : "Bret Johnson" Subj : MSDOS - increasing max sector size ... > Likewise, it will "ignore" disks with sector sizes larger > than what DOS says it can handle (this particular detail is > part of the easily accessible DOS "List of Lists").  In > the source code for USBDRIVE (starting

[Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bertho Grandpied
In reply to : "Michael B. Brutman" Michael, > So the bottom line is that DOS will probably work just fine > when > natively attached to storage devices, and that will work > for a long > time.  "Appliance" storage devices are going to break > that if they can't > emulate 512 byte sectors.

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Eric Auer
Hi Bret, > USBDRIVE does not try to "virtualize" the sector sizes as others are > suggesting here as a possibility -- I figure doing that has the > potential to cause as many problems as the alternative... Maybe you could make that configurable, so people can experiment with virtual 512 byte sec

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bret Johnson
FWIW: In my USB disk driver (USBDRIVE), here's what I've done. USBDRIVE does not try to "virtualize" the sector sizes as others are suggesting here as a possibility -- I figure doing that has the potential to cause as many problems as the alternative (using defective utilities/programs that are

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Michael B. Brutman
Bertho, I spoke from the point of view of the device (the hard drive) - if the hardware that the device is attached to chooses not to expose all of the options that the device supports, there is little the device can do about that. In the case of your external storage somebody made a design

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bernd Blaauw
Op 14-1-2012 23:23, Eric Auer schreef: > Talking about new ways of booting, it would be very interesting to > have a CD / DVD / BD boot loader for DOS. However, after you loaded > the kernel, you still need some "initrd" from which you can load a > CD/... driver pair like UIDE + SHSUCDX or ...CDRO

Re: [Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bertho Grandpied
Eric Auer wrote : > Interestingly, even 3 TB disks are still sold with 512 byte sectors. Conversely, even 1 TB USB disks are already sold with 2048 byte sectors ;=) (...snipping much...) > By the way - a DRIVER could interface with any disk with any sector size and then just provide an int13

Re: [Freedos-user] FreeDOS 1.1 released

2012-01-15 Thread Bernd Blaauw
Op 15-1-2012 3:56, dos386 schreef: >> [Freedos-kernel] FreeDOS 1.1 released > > COOL :-) thanks, worked hard for it :) > http://jafile.com/uploads/dos386/freeds11.png I like your style of coming up with screenshots, it clarifies issues quite nicely. I wish VMware's video feature would use stand

[Freedos-user] Re : Support for 4k byte sectors

2012-01-15 Thread Bertho Grandpied
On Sat, 14 Jan 2012 "Michael B. Brutman" wrote : > As far as 4K blocks go, I wouldn't worry about it too much.  512 byte  > sectors will be supported either natively or by emulation in the drive  > itself for a long time to come - at least 5 to 10 years.  Too many  > existing systems depend on a 5