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- Path: sparky!uunet!mcsun!Germany.EU.net!unido!news.Hamburg.Germany.EU.net!easix!umunk!udo
- From: udo@umunk.GUN.de (Udo Munk)
- Newsgroups: comp.os.coherent
- Subject: Re: Coherent 4.0.1; some bad things
- Message-ID: <9208192417@umunk.GUN.de>
- Date: 20 Aug 92 03:46:53 GMT
- References: <SJE.92Aug14171008@xylos.ma30.bull.com>
- Organization: umunk (private)
- Lines: 110
- X-Newsreader: Tin 1.1 PL4
-
- sje@xylos.ma30.bull.com (Steven J. Edwards) writes:
- : #In article <9208141233@umunk.GUN.de> udo@umunk.GUN.de (Udo Munk) writes:
- : # sje@xylos.ma30.bull.com (Steven J. Edwards) writes:
- : #: 5) The update procedere is nice, but it doesn't allow the resizing of
- : #: the boot partition (this is clearly stated in the notes). The install
- : #: procedure is nice, but it doesn't allow the automated preservation of
- : #: existing root partition files (also clearly stated in the notes). But
- : #: I needed to both to preserve the files and increase the root
- : #: partition! Take it from me folks, you want to have at least 20 Mbytes
- : #: on that root filesystem for serious work.
- : #
- : # That is not a problem of Coherent, there is no UNIX (like) OS out
- : # there, where the size of the root partition can be changed without
- : # installing new. Be happy, that you "only" have to reinstall Coherent
- : # and not AIX 3.2 or SCO :-)
- :
- : It is possible to change partition sizes on unmounted filesystems
- : without damaging files. There are commercial applications for Apple
- : Macintosh and PC machines that do this. Of course, a filesystem may
- : not be reduced in size below the combined sizes of its contents and an
- : increase in filesystem size can only be done by appropriating
- : cylinders from adjacent free space. It can be done, although it isn't
- : easy. It would have been very convenient in my case.
-
- Yes it could be done from a bootable floppy disk, but it's really not easy.
- If you increase the partition also the filesystem must be increased. To
- do so you have to increase the freelist which now goes into the block
- of the very first files on the disk. All files must be moved and all
- the block numbers in the inodes must be adjusted. A very interesting
- problem for system programmers :-)
- However, I don't know about any UNIX which comes with a program like
- this. Of cause it would be very convenient, also not only in your case.
-
- : # All 3.x binaries failed, which are using the IPC stuff, another example
- : # is mtalk. This programs must be recompiled under 4.0, you may read this
- : # elsewhere in the release notes.
- :
- : Perhaps newer versions of the release notes could list the common 3.x
- : packages that use the now forbidden IPC.
-
- No, the IPC stuff is not forbidden now, it's changed only! A recompilation
- is all what must be done. I guess the problem is, that nobody has a
- complete list of the packages using IPC.
-
- : # The MWC K&R compiler is just fine, be happy to have it, otherwhise you
- : # couldn't compile the Gigabytes of K&R stuff from the net.
- :
- : I can compile all of the (decent) K&R C source stuff from the net with
- : gcc as long as I don't ask for ASNI checking.
- :
- : # Whoever needs
- : # an ANSI compiler should get gcc or buy an ANSI compiler from one of the
- : # third party software vendors (see release notes).
- :
- : I, and many other 4.0 users, are waiting for gcc to arrive. As an
- : alternative, MWC could update their cc to include ASNI facilities.
-
- Yes, but there is much to do for MWC. The ANSI problem is solved with gcc,
- so please let them work on the other problems. I guess adding ANSI
- features to MWC's cc isn't a fast hack, and it needs a long testing
- phase before we can get it. I think a port of gcc to Coherent is
- much easyer to do, than adding ANSI features to MWC's cc.
-
- : # Why you do ask us? :-) /dev/cmos points to the CMOS RAM, and the bits
- : # of it should be documented in the motherboard or BIOS manual.
- :
- : Sadly, information of this sort is rarely provided by many PC hardware
- : vendors. There are third party books available, but these are not
- : always appropriate. If MWC made the device entry, then they can also
- : provide the documentation. There are four devices in 4.0 with major
- : device number zero: 0/mem 1/kmem 2/cmos 3/boot_gift. If MWC
- : documented the first two, then they can say a few words about the
- : second two.
-
- Yes I know, but there are differences in the usage of the CMOS ram
- hidden by the BIOS. How should MWC give us the informations for all
- the fine motherboards available today, if the manufacturers of them
- aren't willing to document the bits in their documentation? I guess
- that /dev/cmos isn't used by Coherent, because in 3.x it wasn't
- available. Maybe that MWC gives us access to the CMOS ram for
- playing around with it. The problem is that you can't access the
- CMOS ram from a users process directly, it would result in a core
- dump. Now whith this device driver you can access it for whatever.
-
- : #: 12) The terminfo subsystem is introduced; a good idea. But where are
- : #: the tic source files? How can I modify the terminfo for ansipc if I
- : #: can't find the source?
- : #
- : # The terminfo sources aren't delivered with 4.0 because this needs disk
- : # space, and the disks are full. Also there is no need to deliver the sources,
- : # use the command infocmp to decompile the binaries back to the sources.
- :
- : Ah, but you have to find out about it first. I think the only
- : guaranteed way of finding these utilities is to do a:
- :
- : find / -name "*info*" -print
- :
- : and hope for the best.
-
- You are right, the manual has no cross-reference for this utility
- in the other terminfo stuff man pages. This should be addes to
- the manual by MWC. Also this should go into the Coherent 4.0
- FAQ (Mike, if you read this:-), because I guess we didn't get
- a new manual in the near future.
- --
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