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seta75D
373
usr.etc/suninstall/install_small_kernel
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373
usr.etc/suninstall/install_small_kernel
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#! /bin/sh
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#
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# @(#)install_small_kernel 1.1 94/10/31 SMI
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#
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# install_small_kernel
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#
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# Copyright (c) 1989 by Sun Microsystems, Inc.
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#
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# This shell script installs a small preconfigured kernel for
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# hardware configurations typically equipped with SCSI devices.
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# It can be invoked from the miniroot, and from both single and
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# multi-user modes.
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#
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# The following host types are supported by this script:
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# Standalone with SCSI disks only
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# Server: If the server has non-SCSI disks, the small kernel
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# can be installed on its clients having the supported
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# configurations. Otherwise, the user has the
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# option of installing the small kernel on the host
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# and each of the clients.
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#
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# Dataless installs are supported only if this script is invoked
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# in multi-user mode.
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#
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# The script normally processes only those clients which aren't
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# flagged as having been installed with the small kernel.
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# You can force small kernel installation on specific hosts or speed
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# up the installation process by invoking the script and specifying
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# hostnames on the command line.
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#
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PATH=/bin:/usr/bin:/etc:/usr/etc:/usr/etc/upgrade:/usr/ucb ; export PATH
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files_dir=/etc/install; script='install_small_kernel'
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PWD=`pwd`; tmp=/tmp
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usage="USAGE: $script [hostname1] [hostname2] [hostname3]..."
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[ $# = 0 ] && default=1 && do_host=1
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if [ -f /.MINIROOT ]; then
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top='/a' && mini=1
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else
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[ ! `whoami` = "root" ] && echo "Not superuser!" && exit 1
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ps -ax > /tmp/$$
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if egrep -s '[/ ]cron$' /tmp/$$ || egrep -s '[/ ]update$' /tmp/$$; then
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multi=1
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else
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single=1
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fi
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fi
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#
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# Make sure files created by suninstall are available
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#
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for installfile in mount_list sys_info; do
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[ -s $files_dir/${installfile} ] && continue
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notfound="$notfound $installfile"
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done
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if [ "$notfound" ]; then
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echo "This utility depends on these files generated by 'suninstall':"
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echo " $notfound."
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echo "They are not available on this system."; exit 1
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fi
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host_type=`awk -F= '$1 ~ /^sys_type$/ {print $2}' $files_dir/sys_info`
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if [ "$mini" ] ; then
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sys_name=`awk -F= '$1 ~ /^hostname/ {print $2}' $files_dir/sys_info|\
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awk -F, '{print $1}'`
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else
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sys_name=`hostname`
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fi
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#
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# Validate optional hostnames provided
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#
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for i in $*; do
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case $i in
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$sys_name ) do_host=1;;
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* ) if [ -s $files_dir/client.${i} ]; then
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clients="$clients $i"; continue
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fi
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notfound="$notfound $i";;
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esac
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done
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[ "$notfound" ] && echo "Unknown host: $notfound" && echo $usage && exit 1
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#
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# Subroutine: Process yes/no responses
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#
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get_yn='(while read yn; do
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case "$yn" in
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[Yy]* ) exit 0;;
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[Nn]* ) exit 1;;
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* ) echo -n "Please answer y or n: ";;
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esac
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done)'
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echo "
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This utility installs a small pre-configured kernel for
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systems which are either diskless, or equipped with
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SCSI devices. The kernel supports about four users for
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the following diskfull or diskless configurations:
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Sun3/50 and Sun3/60 with up to 2 SCSI disks, 1 SCSI tape
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Sun3/80 with up to 4 SCSI disks, 2 SCSI tapes
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Sun4/110 with up to 4 SCSI disks, 2 SCSI tapes
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SPARCsystem 330 with up to 4 SCSI disks, 2 SCSI tapes
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SPARCstation 1, 1+, and 2 systems with up to 8 SCSI disks,
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4 SCSI tapes, 2 CD-ROM drives, 1 Floppy Disk
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If this system is a server that does not fit any of the above
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configurations, this utility can be invoked to install the small
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kernel on its clients listed above.
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"
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[ "$mini" ] && echo "Dataless systems are supported in multi-user mode only.
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"
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echo -n "Do you wish to continue? (y/n): "
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eval "$get_yn" || exit 1
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wrong_config=\
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"This utility installs a smaller generic kernel on
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systems having SCSI disks. It appears that this machine
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does not have the valid configuration that can be supported
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by this utility."
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no_dataless=\
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"This utility does not support dataless clients from the miniroot.
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If you wish to install the small kernel, reboot your system and
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invoke it in multi-user mode."
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if [ "$host_type" = "dataless" -a "$mini" ]; then
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echo "$no_dataless" && exit 1
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fi
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#
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# Subroutine: Mount and unmount partitions; if operation fails,
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# attempt error recovery
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#
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get_mtstat='( [ "$do_mt" = "0" ] && cmd="mount" || cmd="umount"
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tried=""; fixit=""
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while :
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do
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/etc/mount|grep -s "$mt_dir "
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[ "$?" = "$do_mt" ] && exit 0
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if [ "$tried" ]; then
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if [ "$do_mt" = "0" -a ! "$fixit" ]; then
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/etc/umount $mt_dev && tried="" && fixit=1 && continue
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fi
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echo -n "Unable to $cmd $mt_dir! Try again? (y/n) "
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eval "$get_yn" && continue || exit 1
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fi
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if [ "$do_mt" = 0 ]; then
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/etc/${cmd} $mt_dev $mt_dir && echo "$mt_dev $mt_dir" >> \
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$tmp/mt_$$
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else
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/etc/${cmd} $mt_dev
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fi
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tried=1
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done )'
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#
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# Subroutine: Copy and verify the small kernel installed.
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# If copy operation fails, try one more time and restore original
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# version, if unsuccessful.
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#
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do_copy='( if [ ! -s $from/vmunix_small ]; then
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echo "Small Kernel not found in $from!"
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exit 1
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fi
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if [ -f $to/vmunix ]; then
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[ ! -s $to/vmunix.orig ] && mv $to/vmunix $to/vmunix.orig
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fi
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for i in 1 2; do
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cp $from/vmunix_small $to/vmunix
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sync; sync
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sum1=`$top/usr/bin/sum $from/vmunix_small`
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sum2=`$top/usr/bin/sum $to/vmunix`
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[ "$sum1" = "$sum2" ] && exit 0
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if [ "$i" = 2 ]; then
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echo "Unable to install small kernel for $sys_name!"
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[ ! -f $to/vmunix.orig ] && exit 1
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echo "Restoring default generic kernel..."
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mv $to/vmunix.orig $to/vmunix
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sync; sync
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exit 1
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fi
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done
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)'
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#
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# Subroutine: Before exiting, restore original filesystem mount state
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# and display appropriate completion message
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#
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cleanup='( [ ! "$multi" ] && /etc/umount -at 4.2 > /dev/null 2>&1
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if [ -s $tmp/mt_$$ ] && [ ! "$mini" ] ; then
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do_mt=1
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cat $tmp/mt_$$ | while read mountlist; do
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set $mountlist
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mt_dev=$1; dir_nm=$2;
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mt_dir=${top}$dir_nm
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eval "$get_mtstat" || break
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done
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fi
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rm -f $tmp/*_$$; cd $PWD
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if [ "$kern_ok" ]; then
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echo ""
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echo "The small pre-configured kernel has been installed on:"
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echo " $kern_ok"
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[ "$mini" ] && echo "You may reboot your system now." || \
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echo "You may reboot the system(s) now."
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else
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echo "The small pre-configured kernel has not been installed."
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fi
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exit 0 )'
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#
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# Mount and verify root partition
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#
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cd $files_dir
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for i in `cat mount_list`; do
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case $i in
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partition* ) disk=$i;;
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mount_pt=/ ) rootdisk=`echo $disk | sed 's/.*=//g'`; break;;
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*) ;;
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esac
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done
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do_mt=0; mt_dev=/dev/${rootdisk}; mt_dir=${top}
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eval "$get_mtstat"
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[ ! "$?" = 0 ] && eval "$cleanup" && exit 1
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trap 'echo $script ABORTED!; eval "$cleanup"; exit 1' 1 2 3 15
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if [ ! -s $top/sbin/init ] ; then
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echo \
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"${rootdisk} does not appear to be the correct root partition!"
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eval "$cleanup" && exit 1
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fi
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#
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# Check if host has non-SCSI disks
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# If host=server with non-SCSI disks, install on clients only
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#
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disk_types=`awk '$1 ~ /^\/dev/ {print $1 }' ${top}/etc/fstab|\
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sed 's/^\/dev\///'`
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if [ "$do_host" ] ; then
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for i in $disk_types; do
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case $i in
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sd*|fd* ) ;;
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* ) do_host=
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[ ! "$host_type" = "server" ] && err=1 && break
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if [ "$default" ] || [ "$clients" ]; then
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echo "Small kernel not installed on $sys_name."
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echo "Non-SCSI disk ($i) found..."
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else
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err=1
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fi
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break;;
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esac
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done
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fi
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[ "$err" ] && echo "$wrong_config" && eval "$cleanup" && exit 1
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#
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# Mount all partitions
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#
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do_mt=0
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awk ' $1 ~ /^\/dev/ { print $1 " " $2}' < ${top}/etc/fstab |\
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while read mountlist; do
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set $mountlist
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mt_dev=$1; dir_nm=$2;
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[ "$dir_nm" = "/" ] && continue
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[ "$dir_nm" = "/pcfs" ] && continue
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mt_dir=${top}$dir_nm
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eval "$get_mtstat" && continue
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eval "$cleanup" && exit 1
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done
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#
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# Install small kernel to host and verify it.
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# If kernel can't be installed on server, query for clients.
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#
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if [ "$do_host" ] ; then
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echo -n "Install small kernel on $sys_name? (y/n) "
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eval "$get_yn" || do_host=
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fi
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if [ "$do_host" ]; then
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to=$top
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from=${top}/usr/kvm/stand
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trap '' 1 2 3 15
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eval "$do_copy"; stat=$?
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trap 'echo $script ABORTED!; eval "$cleanup"; exit 1' 1 2 3 15
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case $stat in
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0) kern_ok="$kern_ok $sys_name"
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[ ! "$host_type" = "server" ] && eval "$cleanup" && exit 0 ;;
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*) [ ! "$host_type" = "server" ] && eval "$cleanup"&& exit 1
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echo -n "Install small kernel on clients? (y/n) "
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eval "$get_yn"
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[ ! "$?" = 0 ] && eval "$cleanup" && exit 1;;
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esac
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fi
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#
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# Get client info for server installations, using suninstall data files
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#
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install_flag='small_kernel='
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if [ "$default" ]; then
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ls client_list.* > $tmp/client_$$ 2>/dev/null
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if [ ! -s $tmp/client_$$ ] ; then
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echo "No clients have been set up for this server."
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eval "$cleanup" && exit 1
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fi
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clnt=`cat client_list.sun*`
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else
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clnt=`echo $clients`
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fi
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[ ! "$clnt" ] && eval "$cleanup" && exit 0
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skip='(small kernel previously installed).'
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echo "Processing clients..."
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last_clnt=`echo $clnt | awk '{print $NF}'`
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for sys_name in $clnt; do
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cl_info=${files_dir}/client.${sys_name}
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if [ "$default" ]; then
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if grep -s ${install_flag}yes $cl_info; then
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echo \
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"Not processed: $sys_name $skip"
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continue
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fi
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fi
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echo -n "Install small kernel on $sys_name? (y/n) "
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eval "$get_yn" || continue
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rpath=`awk -F= '$1 ~ /^root_path$/ {print $2}' $cl_info`
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to=${top}${rpath}
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kpath=`awk -F= '$1 ~ /^kvm_path$/ {print $2}' $cl_info`
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from=${top}${kpath}/stand
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if [ ! -d $to ]; then
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echo "Directory $to does not exist." && continue
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fi
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trap '' 1 2 3 15
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eval "$do_copy"; stat=$?
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trap 'echo $script ABORTED!; eval "$cleanup"; exit 1' 1 2 3 15
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case $stat in
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0) sed "s/^\($install_flag\).*/\1yes/" $cl_info > \
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$tmp/$cl_info_$$
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kern_ok="$kern_ok $sys_name"
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cp -p $tmp/$cl_info_$$ ${cl_info}
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[ "$mini" ] && cp -p $tmp/$cl_info_$$ ${top}${cl_info};;
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*) if [ ! "$sys_name" = "$last_clnt" ] ; then
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echo -n "Continue with other clients? (y/n) "
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eval "$get_yn" && continue || break
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fi
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eval "$cleanup" && exit 1
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esac
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done
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eval "$cleanup" && exit 0
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