The following message is a courtesy copy of an article that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.
[EMAIL PROTECTED] (Jim Elliott, IBM) writes: > You are full of it. Linux is written in C, not COBOL or Assembler. Also, > there is not a different version of Linux for mainframes, the vast majority > of the code is the same on all platforms. What is difference is memory > management and of course I/O. This is done mostly through IFDEF statements > in the Linux kernel C code. And the System z "changes" are integrated into > the mainstream Linux code, not something kept separate by IBM. > > Also, Linux is the NUMBER TWO operating system in the world now in terms of > units (more than all other UNIX variants combined). It is the fastest > growing operating system and will continue to grow. as an aside ... as per various previous posts ... most of the mainframe unix ports in the 80s were products deployed under vm370 (uts, aix/370) ... in large part because field engineering and service people had requirement for mainframe EREP and RAS. the issue was that adding mainframe EREP and RAS to unix was a project several times larger effort than the port itself (i.e for those unix functions that existed ... porting/adapting as necessary to mainframe dependencies ... however, mainframe EREP and RAS were functions that didn't already exist). running under vm370, they could rely on vm370 to provide the mainframe EREP and RAS. the primary exception was the special project for internal AT&T use ... which was adapting unix functions to sit ontop a stripped down tss/370 kernel. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
