ask_filesys

<B>Digital的Unix操作系统VAX 4.2源码</B>

#!/bin/sh
#
# @(#)ask_filesys	4.5	(ULTRIX)	3/18/91 
#
# Usage: sh ask_filsys
#
# Description: During the advanced installation, the user will be asked
#		about how to arrange the file system for /usr, /usr/users,
#		var, swap area, and dump area.  
#		This shell script probes the disk which the user want to
#		install and figure out which partitions are suitable for.
#		If the default partition is available.  It will show the
#			default partition for the user.
#
# 008 - Mar, 1991 - Jon Wallace
#	Moved read and write checks under var filesystem section
#
# 007 - Jan, 1991 - Jon Wallace
#	Changed text to describe the current name of the ULTRIX instal-
#	lation guide.
#
# 006 - Aug 31, 1990 - Jon Wallace
#	Put in fix to echo the read into a variable to remove embedded
#	spaces.
#
# 005 - Aug 09, 1989 - Jon Wallace
#	Added confirmation query when returning from finder in all
#	instances.
#
# 004 - Jun 01, 1989 - Jon Wallace
#	Added variable ROUTINE which allows finder to page through large
#	menus of disks at installation time.
#
# 003 - Jan 26, 1988 - Tung-Ning Cherng
#	Allowed using the existing partition of the system disk.
#
# 002 - May, 1987  - Donnie Cherng
#		Added the location of the var file system request.
# 
# 001 - July, 1986    - Tungning Cherng
#		Probe the disks and partitions to show the table for the user.
#
# 000 - June, 1986    - Tung-Ning Cherng created
#
#	Edited prompts on Aug. 4, 1986 by Al Wojtas
#
LL="
"
ERMSG11=" ${LL}You have used all of the available partitions on this disk.
You must select another disk from the table, and then
choose a partition available on that disk."

ERMSG13=" ${LL}One possible cause for the error is a corrupt disk.
Choose another disk from the table."

USRSIZE=24000  # Minimum size for /usr, only bin and base subsets
SWAPSIZE=6000  # Optimum for swap area
DUMPSIZE=4000  # Optimum for dump area

#
#This while loop obtains the location of the /usr file system.
#
while : true
do
	echo "
*** /usr FILE SYSTEM ALLOCATION ***

You can allocate the /usr file system to one of the disks listed in the
table below.  See the Guide to Installing ULTRIX for an explanation of
this table: "
	ROUTINE="/usr FILE SYSTEM ALLOCATION"
	export ROUTINE
	if [ "$PASS" = "REPEAT" ]
	then
		USR=`finder -f`
	else
		USR=`finder -d`
	fi
	set xx $USR
	usr_D=$2; usr_d=$3; usr_u=$4
	while :
	do
		echo -n "
You selected ${usr_D}, device number ${usr_u}.  Make sure this disk is
on line and write-enabled (if applicable to this drive) and then
confirm your choice.

Use ${usr_D}, ${usr_d}${usr_u} for /usr file system? (y/n) []: "
		read ANS
		ANS=`echo $ANS`
		case $ANS in
		Y | y )
			PASS=
			break
			;;
		N | n )
			PASS=REPEAT
			continue 2
			;;
		* )
			echo "
You must answer 'y' or 'n' to the following question."
			continue
			;;
		esac
	done
	case $usr_d$usr_u in
	$media_d$media_u )
		echo "
You attempted to allocate the /usr file system on ${media_d}${media_u}, which
contains your distribution medium."
		continue
		;;
	$root_d$root_u )
			;;
	* )	
		(cd /dev; MAKEDEV $usr_d$usr_u >/dev/null)
		;;
	esac
	dd if=/dev/r${usr_d}${usr_u}c of=/tmp/wrdisk count=1 >/dev/null 2>&1 ||
	{
		echo "
The $usr_D, $usr_d$usr_u is not accessible.  Make sure the device is
on-line and write enabled."
		continue
	}
	dd if=/tmp/wrdisk of=/dev/r${usr_d}${usr_u}c count=1 >/dev/null 2>&1 ||
	{
		echo "
The $usr_D, $usr_d$usr_u must be write enabled."
		continue
	}
	/etc/chpt -q /dev/r${usr_d}${usr_u}c | sed 1,3d > /tmp/ptable
	case $? in
	0 )	;;
	* )
		echo "
The chpt command failed. Contact your DIGITAL representative."
		exit 1 ;;
	esac
	availp='a b c d e f g h'
	case  $usr_d$usr_u in
	$root_d$root_u )
		avoidp=`cat /tmp/ptable | awk '{if ( $1 == "'$root_p'" ) print $5}' | sed s/,/\ /g`
		avoidp="$avoidp $root_p"	#take out a partition
		availp=`delet_part "$avoidp" "$availp"`
		avoidp=`cat /tmp/ptable | awk '{if ( $1 == "b" ) print $5}' | sed s/,/\ /g`
		avoidp="$avoidp b"	#take out b partition
		availp=`delet_part "$avoidp" "$availp"`
		;;
	esac
	part=`size_part "$availp" $USRSIZE`
	def_part=x	
	case $DEF_PT in
	1 )
		case $usr_d$usr_u in
		$root_d$root_u )
			case $root_D in
			RA82 | RA90 )
				def_part=d	;;
			* )
				def_part=g	;;
			esac
			;;
		esac
		;;
	esac
	>/tmp/partsize
	for k in $part
	do
	 	awk '{if ($1 == "'$k'") {yy=$1; xx=$4/2; zz=$5}} END \
{printf "    %s\t  --- \t%9d\t%s\n",yy,xx,zz}' /tmp/ptable >>/tmp/partsize
	done
	part=`cat /tmp/partsize`	
	usr_p=`ask_part "$part" "/usr file system" "$usr_d$usr_u" $def_part`
	echo "
Making the new file system for /usr on /dev/r$usr_d$usr_u$usr_p $usr_D ${LL}"
	echo "
Making the new file system for /usr on /dev/r$usr_d$usr_u$usr_p $usr_D" 2>&1 >> /FILESYS.log
	umount /usr > /dev/null 2>&1 
	newfs -n /dev/r$usr_d$usr_u$usr_p $usr_D 2>&1 >> /FILESYS.log
	case $? in
	0 )	;;
	* )
		echo "
The newfs command failed to construct the /usr file system on
/dev/r$usr_d$usr_u$usr_p $usr_D. ${ERMSG13}"
		continue 
		;;
	esac
	mount /dev/$usr_d$usr_u$usr_p /usr
	case $? in
	0 )	;;
	* )
		echo "
The mount command failed to mount the /usr file system on
/dev/r$usr_d$usr_u$usr_p. ${ERMSG13} "
		continue 
		;;
	esac
	break
done

## for the first swap area
#

while : true
do
	echo "
*** ALLOCATE THE SWAP1 SPACE ***

You can allocate the swap1 space to one of the disks listed in the
table below.  See the Guide to Installing ULTRIX for an explanation of
this table: "
	ROUTINE="SWAP1 SPACE ALLOCATION"
	export ROUTINE
	SWAP1=`finder -f`
	set xx $SWAP1
	swap1_D=$2; swap1_d=$3; swap1_u=$4
	while :
	do
		echo -n "
You selected ${swap1_D}, device number ${swap1_u}.  Make sure this disk is
on line and write-enabled (if applicable to this drive) and then
confirm your choice.

Use ${swap1_D}, ${swap1_d}${swap1_u} for swap1 space? (y/n) []: "
		read ANS
		ANS=`echo $ANS`
		case $ANS in
		Y | y )
			PASS=
			break
			;;
		N | n )
			continue 2
			;;
		* )
			echo "
You must answer 'y' or 'n' to the following question."
			continue
			;;
		esac
	done
	case $swap1_d$swap1_u in
	$root_d$root_u )
		;;
	* )
		echo -n "
The swap1 space on $swap1_d$swap1_u $swap1_D, which is not the same disk as 
root file system located $root_d$root_u $root_D.  Are you sure <y/n>? "
		read ans
		ans=`echo $ans`
		case $ans in
		[Yy]* ) ;;
		* ) continue
			;;
		esac	
		;;
	esac
	case $swap1_d$swap1_u in
	$media_d$media_u )
		echo "
You attempted to allocate the swap1 space on ${media_d}${media_u}, which
contains your distribution medium."
		continue
		;;
	$root_d$root_u | $usr_d$usr_u ) 
		;;
	* )
		(cd /dev; MAKEDEV $swap1_d$swap1_u  >/dev/null)
		;;
	esac
	dd if=/dev/r${swap1_d}${swap1_u}c of=/tmp/wrdisk count=1 >/dev/null 2>&1 ||
	{
		echo "
The $swap1_D, $swap1_d$swap1_u is not accessible.  Make sure the device is
on-line and write enabled."
		continue
	}
	dd if=/tmp/wrdisk of=/dev/r${swap1_d}${swap1_u}c count=1 >/dev/null 2>&1 ||
	{
		echo "
The $swap1_D, $swap1_d$swap1_u must be write enabled. "
		continue
	}
	/etc/chpt -q /dev/r${swap1_d}${swap1_u}c | sed 1,3d > /tmp/ptable
	case $? in
	0 )	;;
	* )
		echo "
The chpt command failed. Contact your DIGITAL representative."
		exit 1 ;;
	esac

	# Not allow 'a' to prevent destroying disk partition table.
	availp="b c d e f g h" 
	case $swap1_d$swap1_u in
	$root_d$root_u )
		avoidp=`cat /tmp/ptable | awk '{if ( $1 == "'$root_p'" ) print $5}' | sed s/,/\ /g`
		availp=`delet_part "$avoidp" "$availp"`
		;;
	esac
	case $swap1_d$swap1_u in
	$usr_d$usr_u )
		avoidp=`cat /tmp/ptable | awk '{if ( $1 == "'$usr_p'" ) print $5}' | sed s/,/\ /g`
		avoidp="$avoidp $usr_p"
		availp=`delet_part "$avoidp" "$availp"`
		;;
	esac
	part=`size_part "$availp" $SWAPSIZE` 
	case $part in
	"" )
		echo "
${ERMSG11}"
		continue
		;;
	esac
	def_part=x	
	case $DEF_PT in
	1 )
		case $swap1_d$swap1_u in
		$root_d$root_u )
				def_part=b	;;
		esac
		;;
	esac
	>/tmp/partsize
	for k in $part
	do
	 	awk '{if ($1 == "'$k'") {yy=$1; xx=$4/2; zz=$5}} END \
{printf "    %s\t  --- \t%9d\t%s\n",yy,xx,zz}' /tmp/ptable >>/tmp/partsize
	done
	part=`cat /tmp/partsize`	
	swap1_p=`ask_part "$part" "swap1 space" "$swap1_d$swap1_u" $def_part`
	break
done

## for the second swap area
#
while : true
do
	echo -n "
*** ALLOCATE THE SWAP2 SPACE ***

Do you want to allocate a second swap space? (y/n) [n]: "
	read ans
	ans=`echo $ans`
	case $ans in
	y )
			;;
	n | "" )
		break ;;
	* )
		continue ;;
	esac

echo "

You can allocate the swap2 space to one of the disks listed in the
table below.  See the Guide to Installing ULTRIX for an explanation of
this table: "
	ROUTINE="SWAP2 SPACE ALLOCATION"
	export ROUTINE
	SWAP2=`finder -f`
	set xx $SWAP2
	swap2_D=$2; swap2_d=$3; swap2_u=$4
	while :
	do
		echo -n "
You selected ${swap2_D}, device number ${swap2_u}.  Make sure this disk is
on line and write-enabled (if applicable to this drive) and then
confirm your choice.

Use ${swap2_D}, ${swap2_d}${swap2_u} for swap2 space? (y/n) []: "
		read ANS
		ANS=`echo $ANS`
		case $ANS in
		Y | y )
			PASS=
			break
			;;
		N | n )
			continue 2
			;;
		* )
			echo "
You must answer 'y' or 'n' to the following question."
			continue
			;;
		esac
	done
	case $swap2_d$swap2_u in
	$media_d$media_u )
		echo "
You attempted to allocate the swap2 space on ${media_d}${media_u}, which
contains your distribution medium."
		continue
		;;
	$root_d$root_u | $usr_d$usr_u | $swap1_d$swap1_u )
			;;
	* )
		(cd /dev; MAKEDEV $swap2_d$swap2_u  >/dev/null)
		;;
	esac
	dd if=/dev/r${swap2_d}${swap2_u}c of=/tmp/wrdisk count=1 >/dev/null 2>&1 ||
	{
		echo "
The $swap2_D, $swap2_d$swap2_u is not accessible.  Make sure the device is
on-line and write enabled."
		continue
	}
	dd if=/tmp/wrdisk of=/dev/r${swap2_d}${swap2_u}c count=1 >/dev/null 2>&1 ||
	{
		echo "
The $swap2_D, $swap2_d$swap2_u must be write enabled. "
		continue
	}
	/etc/chpt -q /dev/r${swap2_d}${swap2_u}c | sed 1,3d > /tmp/ptable
	case $? in
	0 )	;;
	* )
		echo "
The chpt command failed. Contact your DIGITAL representative."
		exit 1 ;;
	esac
	# Not allow 'a' to prevent destroying disk partition table.
	availp="b c d e f g h"