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- Newsgroups: comp.os.linux
- Path: sparky!uunet!stanford.edu!agate!boulder!kinglear!drew
- From: drew@kinglear.cs.colorado.edu (Drew Eckhardt)
- Subject: Re: multiuser, multidisk questions from novice
- Message-ID: <1992Aug19.212517.5815@colorado.edu>
- Sender: news@colorado.edu (The Daily Planet)
- Nntp-Posting-Host: kinglear.cs.colorado.edu
- Organization: University of Colorado at Boulder
- References: <133895@lll-winken.LLNL.GOV>
- Date: Wed, 19 Aug 1992 21:25:17 GMT
- Lines: 78
-
- In article <133895@lll-winken.LLNL.GOV> blair@lll-crg.llnl.gov (Gary Blair) writes:
- >Please excuse any of the following that may be FAQs. If they're all FAQs,
- >please direct me to the FAQ list.
- >
- >I have a ISA 486/33 system with a 200Mbyte HD and 4Mbyte RAM.
- >
- >1. What compiler, if any, is needed to compile/install Linux?
-
- None to install it, gcc under linux (or as a cross compiler) is
- required to compile it. GCC is freely redistributable, and available
- via anonymous FTP from any of the Linux FTP sites in binary form.
-
- >2. Is Linux a true multiuser, password protected system?
-
- Yes. You can use either a normal /etc/passwd, or the shadow package.
- Both encrypt passwords with the standard DES based crypt() function.
-
- >3. Is is possible to connect other PCs/terminals via serial lines to
- >allow multiple simultaneous users? Any suggestions on how to do
- >this?
-
- Yes. Plug them in, make sure the parameters match on both
- ends, and add an appropriate entry to /etc/ttys or /etc/inittab
- depending on you using a BSD or SYSV init program.
-
- >4. If (3) is possible, any ideas on what performance will be like?
- >Users will be doing simple things, not massive compiles.
-
- Under Unix, processes sleep when they aren't doing anything.
- Ie, waiting for I/O to complete, etc. They don't take
- up cycles when in this sleeping state.
-
- A normal typist will average 60 words per minute, at 5 characters
- per word, or 5 characters per second. 5 cps compared to the 33 million
- clocks per second today's PC's run it is insignificant.
-
- Consequently, users playing Rogue, Nethack, using vi, etc on
- other terminals make a minimal impact on the system - my roomate would
- play nethack on the Envision terminal emulating a VT-100, and would
- use less than 5% of the CPU time.
-
- So, the answer is "Performance will be very good"
-
- >5. Is is possible for a Linux partition to coexist with a DOS
- >partition on the same disk? How easy is it to switch between the
-
- Yes.
-
- >partitions?
-
- Select one at bootup, with one as the default, with a single
- key press.
-
- >
- >6. Is is possible to move files between DOS and Linux?
-
- Yes - there is a DOS filesystem under Linux, so the native
- Linux commands can be used. You can also use mtools.
-
- >
- >7. Would it be possible to install a second hard disk dedicated to Linux?
-
- Yes.
-
- >How do I indicate that Linux is to be booted from that disk?
-
- Either make it the first hard disk, or have a mini-root on
- the first disk where the kernel is loaded from, since you
- can only boot the first physical hard disk. Root can be
- mounted from someplace else though - so you only need < 400K
- for the kernel + space for the shoelace files on the
- miniroot.
-
- --
- Microsoft is responsible for propogating the evils it calls DOS and Windows,
- IBM for AIX (appropriately called Aches by those having to administer it), but
- marketing's sins don't come close to those of legal departments.
-
-