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- Path: sparky!uunet!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!lemis!grog
- From: grog@lemis.uucp (Greg Lehey)
- Newsgroups: comp.unix.sys5.r4
- Subject: Re: What is lacking in UNIX? (Re: UNIVEL MUST BE KIDDING!!!!!)
- Message-ID: <2413@adagio.lemis.uucp>
- Date: 31 Dec 92 10:16:52 GMT
- References: <Bzss9r.Ds8@mudos.ann-arbor.mi.us> <2412@adagio.lemis.uucp> <1679@uel.co.uk>
- Organization: LEMIS, W-6324 Feldatal, Germany
- Lines: 90
-
- In article <1679@uel.co.uk> news@uel.co.uk (Netnews Administration) writes:
- >In article <2412@adagio.lemis.uucp> grog@lemis.uucp (Greg Lehey) writes:
- >>In the case of the new SVR4.2 offerings, they don't give you a chance
- >>to start a shell - that's wizardry, and Unix for the Masses (not yet
- >>(tm)) doesn't cater for that sort of thing.
- >
- >What follows is a summary of how to recover your SVR4.2 system from the
- >boot floppies. Note that this is for the USL reference binary and has not
- >been tried on UNIXware or Concensys V4.2.
-
- I tried it on Consensys V4.2. Here's what happened:
-
- >Here's how to recover:
- >
- >(1) Insert boot floppy1 and bring your system up, then Insert boot
- > floppy2 as prompted.
-
- Elapsed time 1:30
-
- >(2) Go through fdisk(1M) without changing your partitions allocation.
-
- (3:30)
-
- > (i.e. type "5" for exit at the screen asking you whether to create
- > a partition, delete a partition, etc.) . You do not need to choose
- > to create partitions on the second hard disk. The boot flops will figure
- > out whether you were using it.
- >
- >(3) At the screen asking you to choose between non-destructive/destructive
- > installation, choose (1) for non-destructive install.
-
- It still copies files to disk, not a good idea if you're using the
- boot floppies because of a file system crash.
-
- >(4) Insert the third floppy when prompted.
-
- (after 5:30)
-
- >(5) When you see the prompt to remove the third floppy, hit DEL.
-
- Here the installation obviously differs. First, Consensys asks for a
- validation key (UnixWare doesn't, at least not the version I have).
- Then it copies more files to disk. After a total elapsed time of 9
- minutes it asks you whether you want automatic or custom installation.
- I hit DEL here.
-
- >(6) You will see a screen asking you to choose between resuming install or
- > canceling the installation. Just hit DEL here. You may need to hit it
- > a couple times. You should then see a prompt ("#").
-
- Hitting DEL here brings the message ``you can't hit DEL here''.
- Hitting it a third time brings a # prompt.
-
- >(7) Do what you need to do. Note the following:
- >
- > -- You can now put any floppy you wish into either floppy drive,
- > and you should have access to your tape controller if it is
- > there.
-
- Seems reasonable. At least, no floppy was mounted.
-
- > -- you have up to 2 serial ports configured in your kernel.
- > -- you have no networking.
- > -- your root file system is mounted as "/" (as opposed to
- > /install or /mnt). Other file systems except /home
- > and /tmp are mounted on it. You will need to mount /tmp and /home.
-
- This does not match with Consensys. /dev/root is mounted on /root.
- Since there is only one file system (apart from /stand, which was
- mounted, but I forget where), I can't verify whether or not /tmp and
- /home were mounted.
-
- > -- you should be able to run standard editing commands (like vi)
- > since all libraries will be available to you.
-
- ... once you set up the PATH to point to the correct directories.
-
- (end of report)
-
- Many thanks for the information. There's obviously room for
- improvement, though: first, you need to go through a significant
- portion of the installation to get that far, and I don't like to have
- to copy files to disk in order to boot from floppy. Presumably there's
- a way to make a variant of the first or second boot floppy which
- starts a shell instead of the installation script.
-
- --
- Greg Lehey | Tel: +49-6637-1488
- LEMIS | Fax: +49-6637-1489
- Schellnhausen 2, W-6324 Feldatal, Germany
-