77 lines
2.6 KiB
Plaintext
77 lines
2.6 KiB
Plaintext
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#!/bin/sh
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#--
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#-- IBMhpc.postinstall
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#-- Run this script from your <profile>.postinstall to perform the following
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#-- general setup in your diskless image for your HPC cluster:
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#-- - create entries in /etc/fstab for basic filesystems
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#-- - enables the "cons" entry in /etc/inittab
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#-- - create initial copies of /etc/passwd and other files in the image
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#-- - turn on the "at" service
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#-- - turn on xinetd
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#-- -
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#--
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#-- it gets these arguments:
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#--
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#-- $1 = install root (chroot directory for profile)
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#-- $2 = OS version
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#-- $3 = architecture
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#-- $4 = profile name
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#-- $5 = work dir (where genimage is located)
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#--
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#--
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installroot=$1
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osver=$2
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arch=$3
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profile=$4
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workdir=$5
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#-- Generate /etc/fstab automatically during image generation:
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#-- adjust filesystem sizes as needed for your cluster
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cat <<END >$installroot/etc/fstab
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proc /proc proc rw 0 0
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sysfs /sys sysfs rw 0 0
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devpts /dev/pts devpts rw,gid=5,mode=620 0 0
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#${profile}_${arch} / tmpfs rw 0 1
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none /tmp tmpfs defaults,size=3g 0 2
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none /var/tmp tmpfs defaults,size=1g 0 2
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END
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#-- Uncomment the "cons" entry in /etc/inittab
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#cons:12345:respawn:/sbin/smart_agetty -L 38400 console
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TMP_inittab=`sed 's/\(#\)\(cons:12345.*\)$/\2/' $installroot/etc/inittab`
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echo "$TMP_inittab" > $installroot/etc/inittab
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# Create initial copies of /etc/passwd and others in case they are needed
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# by other postscripts
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# If you would like xCAT to keep these up to date,
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# use the xCAT syncfiles function which runs during
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# packimage/liteimg and at other times
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cp -p /etc/passwd $installroot/etc/passwd
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cp -p /etc/group $installroot/etc/group
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cp -p /etc/shadow $installroot/etc/shadow
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cp -p /etc/hosts $installroot/etc/hosts
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# Turn on 'at' service
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chroot $installroot chkconfig atd on
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# Turn on xinetd
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chroot $installroot chkconfig xinetd on
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# Modify some ulimits
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if [ ! -f $installroot/etc/security/limits.conf ]; then
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cp -p /etc/security/limits.conf $installroot/etc/security/limits.conf
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fi
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if [ ! -f $installroot/etc/security/limits.conf.XCAT_BAK ]; then
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cp -p $installroot/etc/security/limits.conf $installroot/etc/security/limits.conf.XCAT_BAK
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fi
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# max locked memory
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#/usr/bin/sed -i 's/HARDLOCKLIMIT=.*/HARDLOCKLIMIT="unlimited"/g' $installroot/etc/sysconfig/ulimit
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#/usr/bin/sed -i 's/SOFTLOCKLIMIT=.*/SOFTLOCKLIMIT="unlimited"/g' $installroot/etc/sysconfig/ulimit
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# max memory size
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#/usr/bin/sed -i 's/HARDRESIDENTLIMIT=.*/HARDRESIDENTLIMIT="unlimited"/g' $installroot/etc/sysconfig/ulimit
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#/usr/bin/sed -i 's/SOFTRESIDENTLIMIT=.*/SOFTRESIDENTLIMIT="unlimited"/g' $installroot/etc/sysconfig/ulimit
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