Are you sure about the non 512 byte sector support? The fake RAM disk that I show when a NetDrive drive letter is not connected uses four 64 byte sectors and FreeDOS can read it just fine. FreeDOS Chkdsk is limited to only working on 512 byte sector devices, but normal reads from the RAM disk work.
On Thu, Feb 27, 2025 at 3:54 PM Bret Johnson via Freedos-devel < freedos-devel@lists.sourceforge.net> wrote: > > FreeDOS is much more stable then MS-DOS due ot: > > 1) Eric Auer did a nice job flushing files to disk which lowered > considerably > > power failure problems > > 2) It is much better then MS-DOS for compatibility with modern machines, > specialy > > big disks and memory > > > > So I vote for implementing whatever is needed in FreeDOS's kernel. This > way it > > will be more compatible with big disks too > > I don't find that to be the case at all, but just like virtualizers and > CMSs and BIOSs, they are not all created equally. I find MS-DOS > (particularly versions 7+) more stable and compatible with things, though > FreeDOS may have an advantage in certain situations. > > The one thing MS-DOS does that FreeDOS still doesn't do (and I don't know > that anyone is working on it) is supporting sector sizes other than 512 > bytes. This is very important to me in the development of my USB drivers > since I am able to better support CD, DVD, and BD in their native 2k sector > sizes. I'm still experimenting with that to see how useful it is since I > don't know if it really makes sense to format optical media (other than > DVD-RAM) with standard FAT-type file systems. But, I am currently able to > read and write directly to USB-attached DVD-RAM disks (which have a 2k > sector size) that are formatted in FAT32. That is, I mount the disk > directly as a FAT32 hard drive (with 2k sectors) in MS-DOS and it doesn't > realize it's actually a DVD-RAM. DVD-RAM has very much gone out of > popularity but I hope to be able to do something similar with "regular" > optical media. I also have seen some USB devices that have sector sizes > larger than 512 bytes. > > > _______________________________________________ > Freedos-devel mailing list > Freedos-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-devel >
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