>casper....@sun.com wrote: > >> >The SVR4 kernel was developed from SunOS-4.0, but SunOS-5.x (Solaris-2.x) >> >was developed from SunOS-4.1.x. >> > >> >> I don't think that that is correct; SVR4 was developed with AT&T from >> SunOS 4.x and SVr3; the SCCS files proof that. Unfortunately, the code >> was copied as bare source and then check in at Sun. Solaris 2.x was >> clearly derived from SVr4 but a lot of changes were made. > >Do you have SCCS files from the time between 1987 and 1990?
Yes. >I have a SVR3 AT&T source from 1986 and a S5R4V1 source from January 1992. >This allos to verify, that the SVR4 kernel is _very_ close to the SunOS-4.0 >kernel and very far from the S5r3 source. Possible; but much of the Solaris userland was derived from SysV and not from SunOS 4.x. >Even the S5R4V1 source did not include any of the new features in e.g. the UFS >implementation, such as "clean flag" and I/O clustering. > >Also S5R4 neither comes with "lofs" nor with "hsfs". > >Later S5R4 versions added "cdfs" as a "hsfs" replacement. Certainly possible; it is not nlikely that both AT&T and continued developing in parallel while they were merging parts into SVr4. Casper _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org
