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From: Terry Lambert <tlambert@primenet.com>
Message-Id: <199811142303.QAA25590@usr02.primenet.com>
Subject: Re: linux software installation and uname
To: sgk@troutmask.apl.washington.edu (Steve Kargl)
Date: Sat, 14 Nov 1998 23:03:52 +0000 (GMT)
Cc: tlambert@primenet.com, jb@cimlogic.com.au, crossd@cs.rpi.edu,
        jkh@time.cdrom.com, nate@mt.sri.com, hackers@FreeBSD.ORG
In-Reply-To: <199811112316.PAA03393@troutmask.apl.washington.edu> from "Steve Kargl" at Nov 11, 98 03:16:17 pm
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> Well, I started the thread, so here goes.  It isn't that simple,
> the script also checks to see that it was executed from /cdrom/x86-1.7/linux.
> You can work around that I suppose once you find all the dependency.

Or even ignoring the dependency as being irrelevent to the issue:


#!/bin/sh

# assume failure...
PRESTATUS="FAIL"
preinstall()
{
	echo "PREINSTALL started"
	if [ -d /cdrom ]
	then
		echo "renaming /cdrom; we need a work directory named /cdrom"
		mv /cdrom /cdrom-linux-was-here
	fi
	mkdir /cdrom
	mount /dev/cd0a /mnt
	cd /mnt
	echo "copying install image to writeable hierarchy for patching"
	tar cf - . | (cd /cdrom ; tar xvf -)
	unount /mnt
	echo "patching the bejesus out of things..."
	# Oh, look, a patch that, if sent to the vendor, would make
	# the next CDROM install on FreeBSD as well as Linux, without
	# all the hoopla...
	patch <<PATCHEOF
yadda yadda yadda...
-	if [ "$UNAME" = "Linux" ]
+	if [ "$UNAME" = "Linux" -o "$UNAME" = "FreeBSD" ]
PATCHEOF
	if "$?" = "0"
	then
		echo "patching completed successfully"
		PRESTATUS="OK"
	else
		ecoh "patching failed; sorry"
	fi
	echo "PREINSTALL complete"
}

postinstall()
{
	cd /
	echo "POSTINSTALL started"
	echo "cleaning up wrietable hierarchy"
	rm -rf /cdrom
	if [ -d /cdrom-linux-was-here ]
	then
		echo "restoring old /cdrom; thanks for the work directory"
		mv /cdrom-linux-was-here /cdrom
	fi
	echo "POSTINSTALL complete"
}

echo "INSTALLATION started"

# preinstallation garbage
preinstall

if [ "$PRESTATUS" = "FAIL" ]
then
	# failed preinstall for whatever reason...
	echo "INSTALLATION aborting"
else
	# preinstall successful; now we do everything that doesn't
	# bear on the installation environment, only on whether or
	# how far the vendor install gets...
	echo "INSTALLATION proceeding"

	echo "VENDORINSTALL started"
	sh /cdrom/x86-1.7/linux
	echo "VENDORINSTALL complete"
fi

# postinstallation garbage; must call if error, as well, so not in
# the "if" block, above...
postinatall


echo "INSTALLATION complete"
exit 0



> Next, you need to specify where the libgcc and libf2c for linux live.

/compat/linux/usr/lib

> This can be fixed after the install.  There other idiosyncracies that
> need to be adjusted.

Yeah, so?  That's why there are software engineers.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.

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