I don't want to say Adam is wrong, so I won't, maybe they've found ways around that. However the MACH Kernel is based on BSD Unix, it's not like it's an entirely different animal.
Adam Maas wrote: > Actually, it's a descendant of NeXTSTEP with one single cosmetic > feature of the old Mac OS (the menu bar) added and a bunch of UNIX > userland grafted on the side. It really doesn't run on top of UNIX at > all, the GUI runs directly on top of the MACH-based kernel, and uses a > different set of API's than the Unix userland which runs beside it, > nor does it particularly resemble the classic Mac OS. The only real > Unixism that the GUI subscribes to is the filesystem, which it > interacts with via some Unix API's. > > Oh, and root permissions to the filesystem are granted via sudo, OS X > always asks for them, it never decides on its own to grant a user root > permissions (which btw is rarely needed apart from doing system > maintenance or installing drivers, unlike in Windows which typically > requires Admin priviledges to install software). > > -Adam > > On Wed, Jul 16, 2008 at 9:36 AM, P. J. Alling <[EMAIL PROTECTED]> wrote: > >> Then this will be even more confusing. The current MAC OS is a >> graphical user interface that resembles the original MAC OS built on a >> version of UNIX. To do a lot of useful things you have to have root >> privileges, (i.e. permission to do everything). However giving that >> kind of permission is a recipe for disaster, as well as very bad from a >> security standpoint. To make the user experience a bit less tiresome >> and more seamless the MAC OS makes assumptions about when to grant these >> privileges and when to revoke them. Sometimes it's just wrong. The >> result can be mysterious and or annoying messages. >> >> David J Brooks wrote: >> >>> On Wed, Jul 16, 2008 at 9:06 AM, P. J. Alling <[EMAIL PROTECTED]> wrote: >>> >>> >>>> I like to think that the unexplained happens when you build a GUI for >>>> everyman on top of UNIX. This appears to be proof... >>>> >>>> >>> You've lost me already. >>> >>> Dave >>> >>> >>>> David J Brooks wrote: >>>> >>>> >>>>> Monday i noticed i had "lost" about 5 gig of space, and i decided to >>>>> trash the trash. >>>>> >>>>> That seemed to bring it back the last time. >>>>> >>>>> Now, every time i log on to the computer, i get a pop up screen >>>>> saying" You do not have permission to delete file-"about your >>>>> idisk.rtf." >>>>> >>>>> Also the same day, i had a screen pop up to say i needed more space >>>>> added for my idisk. >>>>> >>>>> Could this be were my 5 gig went and why i am getting this new message.?? >>>>> >>>>> No big deal, i just close the pop up screen, more just curious. >>>>> >>>>> Dave >>>>> >>>>> >>>>> >>>>> >>>> -- >>>> You get further with a kind word and a gun, than with a kind word alone. >>>> --Al Capone. >>>> >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> [email protected] >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>> follow the directions. >>>> >>>> >>>> >>> >>> >>> >> -- >> You get further with a kind word and a gun, than with a kind word alone. >> --Al Capone. >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. >> >> > > > > -- You get further with a kind word and a gun, than with a kind word alone. --Al Capone. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
