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Door , , 6 reacties
Bron: Visopsys

Andy McLaughlin werkt al sinds 1997 aan het besturingssysteem Visopsys en heeft onlangs versie 0.62 de deur uitgedaan. Het besturingssysteem heeft een volledige implementatie voor multitasking, 100% protected mode en virtual-memory en heeft volgens de ontwikkelaar een massively monolithic style kernel. Er is een kleine selectie van applicaties beschikbaar voor dit platform waar uit de uitgebreide Disk Manager opvalt waarmee partities probleemloos aangemaakt en aangepast kunnen worden. Voor een compleet overzicht van het hoe en wat verwijzen we jullie door naar deze pagina. De aankondiging en de lijst met veranderingen van versie 0.62 zien er als volgt uit:

Version 0.62:

This is a maintenance release. Some new features include basic USB controller support, a USB mass-storage driver, device hotplugging, Qemu support, loading of RLE encoded bitmaps, a 'programs' icon, and 'minesweeper' and 'snake' games.
  • Implemented basic USB support for UHCI controllers.
  • Implemented a SCSI driver that can support USB mass storage devices.
  • Added basic hot-plugging support for devices.
  • Added support in the image functions for loading RLE encoded bitmaps.
  • Added a 'programs' icon.
  • Added 'minesweeper' and 'snake' games.
  • Added an icon for Bauer Vladislav's calendar program.
  • Implemented a proper kernelBus top-level infrastructure for use by the PCI driver, USB driver, etc.
  • The display devices and text console drivers are now initialized separately and before other hardware, so that hardware detection messages can be shown while detection is going on.
  • The 'computer' program now continuously scans for new disks.
  • The 'shutdown' command now has a command-line flag for rebooting, and the 'shutdown' and 'reboot' commands now have command-line flags for ejecting the boot media, if applicable.
  • The 'iconwin' and 'filebrowse' programs now change the mouse pointer when they're busy loading up a file or program.
  • The 'iconwin' program now continues silently when programs or icons specified in the config file are missing.
  • The boot menu now has a default selection and timeout period (settable by the 'bootmenu' program).
  • There is now an 'active menu' global window system variable so that the focused menu can always be on top, and always go away then it loses focus.
  • Fixed: Booting failed on Qemu due to a PS/2 mouse driver hang.
  • Fixed: The 'bootmenu' program failed to run from a read-only media.
  • Fixed: The boot menu timer was counting down too quickly.
  • Fixed: The 'install' program failed if a directory it wanted to create already existed.
  • Fixed: The 'defrag' program was giving "can't defrag filesystem type 'unknown'" messages for things like floppies that hadn't been mounted.
  • Fixed: The kernelDiskGetMediaState() function was returning 0 for flash disks
Version 0.61:

This is a maintenance release. Some new features include Disk Manager support for resizing NTFS filesystems and arbitrary partitions, purely unprivileged user-space processes, I/O port permissions and protection, IDE block mode I/O, Linux swap detection and clobber, improved atomic kernel locks, many C library additions, and a calendar program, in addition to assorted bug fixes.
  • The Disk Manager can now resize Windows XP (NTFS) partitions, as a result of porting Linux ntfsprogs NTFS resizing code.
  • The Disk Manager will now allow partition-only resizing regardless of the filesystem type (with appropriate warnings).
  • All userspace programs now run in unprivileged CPU mode, regardless of actual privilege level, and I/O privilege maps have been implemented by Davide Airaghi.
  • Improved IDE/ATA hard disk driver performance by implementing block-mode I/O.
  • Added basic 'stub' NTFS filesystem support (detection and clobber).
  • Added basic 'stub' Linux swap filesystem support (detection and clobber).
  • The kernel's locking code now implements real atomic locking.
  • Added Bauer Vladislav's calendar program.
  • All threads now use the same page directory control data as their process parents for better synchronization.
  • Process stacks now have guard pages at the top which are privileged, so that user process stack overflows cause protection faults.
  • The C library now has a proper suite of malloc() functionality -- taken from the kernel's implementation -- which is now used by the kernel instead so it can be used for user space without code duplication.
  • Added a kernelMemoryBlockInfo() function to return information about an allocated memory block. Useful for the realloc() libc function.
  • Added a kernel disk function for rescanning the partitions of a single disk.
  • Added a lock to the 'progress' data structure.
  • Implemented 'confirmation' capability in the progress structure and the libvsh and libwindow progress bar/dialog functions.
  • Add a kernel filesystem function for getting statistics about a filesystem (whether it's mounted or not, or indeed, properly supported or not).
  • Added a kernel filesystem function for getting resizing constraints.
  • Added a kernel filesystem function for requesting specific detection of filesystem type (useful for removable media and such).
  • The text-mode installer now offers to let you partition first.
  • The text mode Disk Manager now show the operations/commands in two columns.
  • Added a window library 'radio dialog' for presenting choices in a radio button format.
  • The Disk Manager's 'move partition' and 'copy disk' functions now uses standard progress dialogs and show time estimates.
  • The kernel logging thread now has a lock on the log, so that the log doesn't get garbled by different processes logging at the same time.
  • The OS loader's screen output is now saved in a file (/system/vloader.log) so that it can be examined afterwards.
  • Removed the source code from the ISO distribution.
  • Printf()-style C library functions now support left-justification ('-') format specifiers.
  • Added C library functions lltoa(), lltob(), lltox(), and ulltoa() to support 'long' format specifiers and arguments.
  • Added C library functions mbstowcs(), mbtowc(), and wctomb() for wide-character support.
  • Added C library functions fflush(), ffs(), fgets(), realloc(), strdup(), strerror(), vfprintf(), vprintf(), vsnprintf(), and vsprintf().
  • Added C library functions for 64-bit divisions such as __div64(), __divdi3(), __moddi3(), etc.
  • Enabled the C library functions such as fgetpos(), fread(), fsetpos(), fflush(), fgets(), ftell(), fprintf(), fseek() and fwrite() (as applicable) to behave correctly when the FILE* stream is 'stdin', 'stdout', or 'stderr'.
  • Added C library header files endian.h, stdint.h, and <sys/cdefs.h>.
  • Fixed: After formatting FAT32, Linux and older Windows installers would show the filesystem as 100% full.
  • Fixed: Errors with IDE/ATA hard disks as secondary masters.
  • Fixed: Unformatting (clobbering) a partition in the disk manager didn't seem to convince the kernel to un-detect the previous filesystem until reboot.
  • Fixed: The graphical 'ifconfig' program wasn't updating the device text after starting/stopping networking.
  • Fixed: The wallpaper program was not properly shutting down its window thread.
  • Fixed: The imgboot program failed to exit after calling the login program.
  • Fixed: There was a (harmless) error message when running the 'ldd' program against an executable program because it always tried to load the file as a library.
[break]Visopsys 0.62 is in de volgende drie smaken binnen te halen:
* ISO image
* Floppy image
* Source
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Reacties (6)

Soms vraag ik me af wat de bedoeling is van al die kleine projecten voor besturingssystemen...
Moest ik deze op mn usb stick krijgen zou het wel handig zijn. Vooral omdat ik merk dat er nu ondersteuning is voor qemu. Dus gewoon opstarten met visopsys, en daarna eender welk ander besturingssysteem starten met Qemu, eventueel zelfs meerdere gelijktijdig.

Iemand ervaring mee?

edit:
net getest. Het werkt onder Qemu, en dat was ook wat men bedoelde. Ik had het dus verkeerd voor, in het OS zelf kan je geen qemu draaien...
Op zoek naar één waar dit wel lukt dus :-)
The primary goal of Visopsys is to cherry-pick the best ideas from other operating systems, preferably contribute a few new ideas, and hopefully avoid (re-) introducing some of the more annoying elements.
Staat er op de eerste pagina van de gelinkte website
Geen ervaring mee nee, maar ik kan je wel vertellen wat de bedoeling is van al die kleine projecten....groot worden ;)
Ik denk eerder dat de maker van dit project gewoon lol heeft in het maken van OS van scratch en zodoende meer leert over het hoe en wat van OS'en. Mocht het ooit groot worden is dat leuk meegenomen, maar denk niet echt dat dat de drijfveer is.
Is dit compatible met Linux/Windows?

want het lijkt me wel wat om hierop Windows Spellen te spelen :9~
Doel je toevallig op een dualboot? Want dit is verder een OS die geen Linux/Windows nodig heeft ;)

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