pastebin - Unnamed - post number 327457

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Unnamed
Wednesday, January 24th, 2007 at 11:27:21pm UTC

#!/bin/sh
set -e
export LC_ALL=C
 
if [ "$1" = upgrade ]
then
    if dpkg --compare-versions "$2" le 2.2.2-4 && test -e /lib/libdb.so.3; then
        # Make upgrades to newer libdb.so.3 easier
        cat /lib/libdb.so.3 > /lib/libdb.so.3.old
    fi
    if dpkg --compare-versions "$2" le 2.1.1-0.1; then
        if [ -f /var/run/utmpd.pid ]; then
            if kill -s TERM `cat /var/run/utmpd.pid` > /dev/null 2>&1
            then
                if [ -f /var/run/utmp ]; then
                    cp /dev/null /var/run/utmp
                    if grep '^utmp:' /etc/group; then
                        chown root:utmp /var/run/utmp
                        chmod 664 /var/run/utmp
                    else
                        chown root:root /var/run/utmp
                        chmod 644 /var/run/utmp
                    fi
                fi
                if [ -f /var/log/wtmp ]; then
                    savelog /var/log/wtmp
                    touch /var/log/wtmp
                    if grep '^utmp:' /etc/group; then
                        chown root:utmp /var/log/wtmp
                        chmod 664 /var/log/wtmp
                    else
                        chown root:root /var/log/wtmp
                        chmod 644 /var/log/wtmp
                    fi
                fi
                rm -f /etc/init.d/utmpd
                update-rc.d utmpd remove > /dev/null
            fi
        fi
        if [ -f /var/run/utmpx ]; then rm -f /var/run/utmpx; fi
        if [ -f /var/log/wtmpx ]; then rm -f /var/log/wtmpx*; fi
        if [ -e /var/run/utmpd.ro ]; then rm -f /var/run/utmpd.ro; fi
        if [ -e /var/run/utmpd.rw ]; then rm -f /var/run/utmpd.rw; fi
    fi
 
    # NSS authentication trouble guard
    if dpkg --compare-versions $2 lt 2.3.5-1; then
        check="xdm kdm gdm postgresql xscreensaver"
        # Only get the ones that are installed, and configured
        service=$(dpkg -s $check 2> /dev/null | awk 'BEGIN{RS="\n\n";FS="\n"}{if ( $2 ~ /Status: .* installed$/ ) { print $1 } }' | cut -f 2 -d ' ')
 
        echo
        echo "Name Service Switch update in the C Library: pre-installation question."
        echo
        echo "Running services and programs that are using NSS need to be restarted,"
        echo "otherwise they might not be able to do lookup or authentication any more."
        echo "The installation process is able to restart some services (such as ssh or"
        echo "telnetd), but other programs cannot be restarted automatically.  One such"
        echo "program that needs manual stopping and restart after the glibc upgrade by"
        echo "yourself is xdm - because automatic restart might disconnect your active"
        echo "X11 sessions."
        echo
        echo "Known packages that need to be stopped before the glibc upgrade are:"
        echo "        $check"
        echo
 
        if [ -n "$service" ]; then 
            echo "This script detected the following installed services which must be"
            echo "stopped before the upgrade:"
            echo "        $service"
        else
            echo "This script did not detect any installed services which need to be"
            echo "stopped."
        fi
        echo
        echo "If you want to interrupt the upgrade now and continue later, please"
        echo "answer No to the question below."
        echo 
        frontend=`echo "$DEBIAN_FRONTEND" | tr '[:upper:]' '[:lower:]'`
        if [ "$frontend" = noninteractive ]; then
            echo "Non-interactive mode, upgrade glibc forcibly"
            answer=yes
        else
            echo -n "Do you want to upgrade glibc now? [Y/n] "
            read answer
            case $answer in
                Y*|y*) answer=yes ;;
                N*|n*) answer=no ;;
                *) answer=yes ;;
            esac
        fi
        echo
        if [ "$answer" = no ]; then
            echo "Stopped glibc upgrade.  Please retry the upgrade after you have"
            echo "checked or stopped services by hand."
            exit 1
        fi
    fi
 
    # This will keep us from using hwcap libs (optimized) during an
    # upgrade.
    touch /etc/ld.so.nohwcap
    echo glibc >> /etc/ld.so.nohwcap
fi
 
# Sanity check.
# If there are versions of glibc outside of the normal installation
# location (/lib, /lib64, etc.) then things may break very badly
# as soon as ld.so is replaced by a new version.  This check is not
# foolproof, but it's pretty accurate.  This script ignores old
# libc4 or libc5, and libraries incompatible with the to-be-installed
# ld.so.
 
check_dirs () {
  for dir in $*; do
    # Follow symlinks
    dirlink=$(readlink -f $dir)
    [ -n "$dirlink" ] && dir=$dirlink 
    
    # Handle /lib in LD_LIBRARY_PATH.
    if expr $dir : "/lib.*" > /dev/null; then
      continue
    fi
    # Skip ia32-libs package on ia64, and similar libraries
    # (not sure why these get added to /etc/ld.so.conf)
    if expr $dir : "/emul/.*" > /dev/null; then
      continue
    fi
    if test -d $dir; then
      output=$(ls $dir | egrep '^lib(c|m|pthread|rt|dl)\.so\.[^/]*$' |\
               egrep -v '^lib[cm]\.so\.[45].*$' 2>/dev/null)
 
      if test -n "$output"; then
        # See if the found libraries are compatible with the system ld.so;
        # if they aren't, they'll be ignored.  Check e_ident, e_type (which
        # will just be ET_DYN), and e_machine.  If a match is found, there
        # is a risk of breakage.
        for lib in $output
        do
          if test -f "$dir/$lib"; then
            libbytes=`head -c 20 $dir/$lib | od -c`
            for ld_so in $ld_so_list
            do
              if test -f "$ld_so"; then
                ldbytes=`head -c 20 $ld_so | od -c`
                if test "$ldbytes" = "$libbytes"; then
                  echo "Matching libraries: $dir/$lib $ld_so"
                  return 0
                fi
              fi
            done
          fi
        done
      fi
    fi
  done
  return 1
}
 
if [ "$1" != abort-upgrade ]
then
  ld_so_list="/lib/ld-linux.so.2 /lib64/ld-linux-x86-64.so.2"
  dirs="/usr/local/lib /usr/local/lib32 /usr/local/lib64"
  if ! test -L /usr; then
    dirs="$dirs /usr/lib /usr/lib32 /usr/lib64"
  fi
  if check_dirs $dirs; then
    echo
    echo "A copy of glibc was found in an unexpected directory."
    echo "It is not safe to upgrade the C library in this situation;"
    echo "please remove that copy of the C library and try again."
    exit 1
  fi
 
  if test -n "$LD_LIBRARY_PATH"; then
    dirs=$(echo $LD_LIBRARY_PATH | sed 's/:/ /')
    if check_dirs $dirs; then
      echo
      echo "Another copy of the C library was found via LD_LIBRARY_PATH."
      echo "It is not safe to upgrade the C library in this situation;"
      echo "please remove the directory from LD_LIBRARY_PATH and try again."
      exit 1
    fi
  fi
  if test -e /etc/ld.so.conf; then
    dirs=$(echo $(cat /etc/ld.so.conf))
    if check_dirs $dirs; then
      echo
      echo "Another copy of the C library was found via /etc/ld.so.conf."
      echo "It is not safe to upgrade the C library in this situation;"
      echo "please remove the directory from /etc/ld.so.conf and try again."
      exit 1
    fi
  fi
fi
 
if [ "$1" != abort-upgrade ] && [ "`uname -s`" = Linux ]
then
    # glibc kernel version check: KERNEL_VERSION_CHECK
kernel_compare_versions () {
    verA=$(($(echo "$1" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 10000 + \2 \* 100 + \3/')))
    verB=$(($(echo "$3" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 10000 + \2 \* 100 + \3/')))
    
    test $verA -$2 $verB
}
 
exit_check () {
    
    exit 1
}
 
    # Test to make sure z < 255, in x.y.z-n form of kernel version
    # Also make sure we don't trip on x.y.zFOO-n form
    #kernel_rev=$(uname -r | tr -- - . | cut -d. -f3 | tr -d '[:alpha:]')
    kernel_rev=$(uname -r | sed 's/\([0-9]*\.[0-9]*\.\)\([0-9]*\)\(.*\)/\2/')
    if [ "$kernel_rev" -ge 255 ]
    then
        echo WARNING: Your kernel version indicates a revision number
        echo of 255 or greater.  Glibc has a number of built in
        echo assumptions that this revision number is less than 255.
        echo If you\'ve built your own kernel, please make sure that any 
        echo custom version numbers are appended to the upstream
        echo kernel number with a dash or some other delimiter.
 
        exit_check
    fi
 
    # sanity checking for the appropriate kernel on each architecture.
    realarch=`uname -m`
    kernel_ver=`uname -r`
 
    # convert "armv4l" and similar to just "arm", and "mips64" and similar
    # to just "mips"
    case $realarch in
      arm*) realarch="arm";;
      mips*) realarch="mips";;
    esac
    
 
    # intel i386 requires a recent kernel
    if [ "$realarch" = i386 ]
    then
        # From glibc 2.3.5-7 and linux-2.6 2.6.12-1, real-i386 is dropped.
        #if kernel_compare_versions "$kernel_ver" lt 2.4.24
        #then
            echo WARNING: This machine has real i386 class processor.
            echo Debian etch and later does not support such old hardware
            echo any longer.
            echo The reason is that \"bswap\" instruction is not supported
            echo on i386 class processors, and some core libraries have 
            echo such instruction.  You\'ll see illegal instruction error
            echo when you upgrade your Debian system.
            exit_check
        #fi
    fi
 
    # The GNU libc is now built with --with-kernel= >= 2.4.1, except on m68k
    if [ "$realarch" != m68k ]
    then
        if kernel_compare_versions "$kernel_ver" lt 2.4.1
        then
            echo WARNING: This version of glibc requires that you be running
            echo kernel version 2.4.1 or later.  Earlier kernels contained
            echo bugs that may render the system unusable if a modern version
            echo of glibc is installed.
            exit_check
        fi
    fi
    # SPARC sun4m requires a recent kernel
    if [ "$realarch" = sparc ]
    then
        cputype=`egrep '^type.*:.*sun4m' /proc/cpuinfo 2> /dev/null` || true
 
        if [ "$cputype" != "" ]
        then
            if kernel_compare_versions "$kernel_ver" lt 2.4.21
            then
                echo WARNING: You have a cpu which requires kernel 2.4.21
                echo or greater in order to install this version of glibc.
                echo Please upgrade the kernel before installing this package.
                echo
                echo You should be able to install the latest version of the
                echo sparc kernel-image in order to satisfy this need. You
                echo can also download and compile the latest kernel source
                echo yourself from a kernel mirror \(see http://www.kernel.org/\).
                exit_check
            fi
        fi
    fi
    # HPPA boxes require latest fixes in the kernel to function properly.
    if [ "$realarch" = parisc ]
    then
        if kernel_compare_versions "$kernel_ver" lt 2.4.17
        then
                echo WARNING: This version of glibc requires that you be running
                echo atleast a 2.4.17 kernel in order to work properly. Earlier
                echo kernels did not provide the proper functionality in order 
                echo for the system to be stable. 
                exit_check
        fi
    fi
    # parisc64 boxes require latest fixes in the kernel 2.4.19-pa17 or later
    # (in 2.4.x), 2.5.53-pa3 or later (in 2.5.x), to function properly.
    # Note that parisc64 kernel version scheme is "`uname -r`-64".
    if [ "$realarch" = parisc64 ]
    then
        kernel_ver_pa=$(echo "$kernel_ver" | sed 's/pa//')
        if [ "$kernel_ver" = "$kernel_ver_pa" ]
        then
            if kernel_compare_versions "$kernel_ver" lt 2.4.19-64
            then
                echo WARNING: This version of glibc requires that you be
                echo running at least a 2.4.19-64 to work properly.
                echo Earlier kernels did not provide the proper functionality
                echo in order for the system to be stable. 
                exit_check
            fi
        else
            if kernel_compare_versions "$kernel_ver" lt 2.4.19-pa17
            then
                echo WARNING: This version of glibc requires that you be
                echo running at least a 2.4.19-pa17 in \(2.4\) or 2.5.53-pa3 
                echo \(in 2.5\) to work properly.
                echo Earlier kernels did not provide the proper functionality
                echo in order for the system to be stable. 
                exit_check
            fi
        fi
    fi
 
    if [ "$realarch" = mips ] \
        && [ i386 = mips ]
    then
        # MIPS (but not mipsel) require a kernel update for the msq fixes.
        if kernel_compare_versions "$kernel_ver" lt 2.4.22
        then
                echo WARNING: System V message queues require kernel 2.4.22 to
                echo work correctly on this architecture.  Some programs
                echo "(including perl) may not operate correctly."
                exit_check
        fi
    fi
 
    # amd64 requires 2.6 kernel because we drop to support linuxthreads
    if [ "$realarch" = x86_64 ] \
        && [ i386 = amd64 ]
    then
        if kernel_compare_versions "$kernel_ver" lt 2.6.0
        then
            echo WARNING: POSIX threads library NPTL requires 2.6 and
            echo later kernel on amd64.  If you use 2.4 kernel, please
            echo upgrade your kernel before installing glibc.
            exit_check
        fi
    fi
 
    # In Ubuntu, we have dropped LinuxThreads.  We require the 2.6 kernel.
    if kernel_compare_versions "$kernel_ver" lt 2.6.0
    then
        echo WARNING: POSIX threads library NPTL requires 2.6 and
        echo later kernel.  You are using a 2.4 kernel, please
        echo upgrade your kernel before installing glibc.
        exit_check
    fi
 
fi
 
 
 
exit 0

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update paste below

#!/bin/sh
set -e
export LC_ALL=C

if [ "$1" = upgrade ]
then
    if dpkg --compare-versions "$2" le 2.2.2-4 && test -e /lib/libdb.so.3; then
	# Make upgrades to newer libdb.so.3 easier
	cat /lib/libdb.so.3 > /lib/libdb.so.3.old
    fi
    if dpkg --compare-versions "$2" le 2.1.1-0.1; then
	if [ -f /var/run/utmpd.pid ]; then
	    if kill -s TERM `cat /var/run/utmpd.pid` > /dev/null 2>&1
	    then
		if [ -f /var/run/utmp ]; then
		    cp /dev/null /var/run/utmp
		    if grep '^utmp:' /etc/group; then
			chown root:utmp /var/run/utmp
			chmod 664 /var/run/utmp
		    else
			chown root:root /var/run/utmp
			chmod 644 /var/run/utmp
		    fi
		fi
		if [ -f /var/log/wtmp ]; then
		    savelog /var/log/wtmp
		    touch /var/log/wtmp
		    if grep '^utmp:' /etc/group; then
			chown root:utmp /var/log/wtmp
			chmod 664 /var/log/wtmp
		    else
			chown root:root /var/log/wtmp
			chmod 644 /var/log/wtmp
		    fi
		fi
		rm -f /etc/init.d/utmpd
		update-rc.d utmpd remove > /dev/null
	    fi
	fi
	if [ -f /var/run/utmpx ]; then rm -f /var/run/utmpx; fi
	if [ -f /var/log/wtmpx ]; then rm -f /var/log/wtmpx*; fi
	if [ -e /var/run/utmpd.ro ]; then rm -f /var/run/utmpd.ro; fi
	if [ -e /var/run/utmpd.rw ]; then rm -f /var/run/utmpd.rw; fi
    fi

# NSS authentication trouble guard
    if dpkg --compare-versions $2 lt 2.3.5-1; then
	check="xdm kdm gdm postgresql xscreensaver"
	# Only get the ones that are installed, and configured
	service=$(dpkg -s $check 2> /dev/null | awk 'BEGIN{RS="\n\n";FS="\n"}{if ( $2 ~ /Status: .* installed$/ ) { print $1 } }' | cut -f 2 -d ' ')

echo
	echo "Name Service Switch update in the C Library: pre-installation question."
	echo
	echo "Running services and programs that are using NSS need to be restarted,"
	echo "otherwise they might not be able to do lookup or authentication any more."
	echo "The installation process is able to restart some services (such as ssh or"
	echo "telnetd), but other programs cannot be restarted automatically.  One such"
	echo "program that needs manual stopping and restart after the glibc upgrade by"
	echo "yourself is xdm - because automatic restart might disconnect your active"
	echo "X11 sessions."
	echo
	echo "Known packages that need to be stopped before the glibc upgrade are:"
	echo "        $check"
	echo

if [ -n "$service" ]; then 
	    echo "This script detected the following installed services which must be"
	    echo "stopped before the upgrade:"
	    echo "        $service"
	else
	    echo "This script did not detect any installed services which need to be"
	    echo "stopped."
	fi
	echo
	echo "If you want to interrupt the upgrade now and continue later, please"
	echo "answer No to the question below."
	echo 
	frontend=`echo "$DEBIAN_FRONTEND" | tr '[:upper:]' '[:lower:]'`
	if [ "$frontend" = noninteractive ]; then
	    echo "Non-interactive mode, upgrade glibc forcibly"
	    answer=yes
	else
	    echo -n "Do you want to upgrade glibc now? [Y/n] "
	    read answer
	    case $answer in
		Y*|y*) answer=yes ;;
		N*|n*) answer=no ;;
		*) answer=yes ;;
	    esac
	fi
	echo
	if [ "$answer" = no ]; then
	    echo "Stopped glibc upgrade.  Please retry the upgrade after you have"
	    echo "checked or stopped services by hand."
	    exit 1
	fi
    fi

# This will keep us from using hwcap libs (optimized) during an
    # upgrade.
    touch /etc/ld.so.nohwcap
    echo glibc >> /etc/ld.so.nohwcap
fi

# Sanity check.
# If there are versions of glibc outside of the normal installation
# location (/lib, /lib64, etc.) then things may break very badly
# as soon as ld.so is replaced by a new version.  This check is not
# foolproof, but it's pretty accurate.  This script ignores old
# libc4 or libc5, and libraries incompatible with the to-be-installed
# ld.so.

check_dirs () {
  for dir in $*; do
    # Follow symlinks
    dirlink=$(readlink -f $dir)
    [ -n "$dirlink" ] && dir=$dirlink 
    
    # Handle /lib in LD_LIBRARY_PATH.
    if expr $dir : "/lib.*" > /dev/null; then
      continue
    fi
    # Skip ia32-libs package on ia64, and similar libraries
    # (not sure why these get added to /etc/ld.so.conf)
    if expr $dir : "/emul/.*" > /dev/null; then
      continue
    fi
    if test -d $dir; then
      output=$(ls $dir | egrep '^lib(c|m|pthread|rt|dl)\.so\.[^/]*$' |\
	       egrep -v '^lib[cm]\.so\.[45].*$' 2>/dev/null)

if test -n "$output"; then
	# See if the found libraries are compatible with the system ld.so;
	# if they aren't, they'll be ignored.  Check e_ident, e_type (which
	# will just be ET_DYN), and e_machine.  If a match is found, there
	# is a risk of breakage.
	for lib in $output
	do
	  if test -f "$dir/$lib"; then
	    libbytes=`head -c 20 $dir/$lib | od -c`
	    for ld_so in $ld_so_list
	    do
	      if test -f "$ld_so"; then
	        ldbytes=`head -c 20 $ld_so | od -c`
	        if test "$ldbytes" = "$libbytes"; then
	          echo "Matching libraries: $dir/$lib $ld_so"
	          return 0
	        fi
	      fi
	    done
	  fi
	done
      fi
    fi
  done
  return 1
}

if [ "$1" != abort-upgrade ]
then
  ld_so_list="/lib/ld-linux.so.2 /lib64/ld-linux-x86-64.so.2"
  dirs="/usr/local/lib /usr/local/lib32 /usr/local/lib64"
  if ! test -L /usr; then
    dirs="$dirs /usr/lib /usr/lib32 /usr/lib64"
  fi
  if check_dirs $dirs; then
    echo
    echo "A copy of glibc was found in an unexpected directory."
    echo "It is not safe to upgrade the C library in this situation;"
    echo "please remove that copy of the C library and try again."
    exit 1
  fi

if test -n "$LD_LIBRARY_PATH"; then
    dirs=$(echo $LD_LIBRARY_PATH | sed 's/:/ /')
    if check_dirs $dirs; then
      echo
      echo "Another copy of the C library was found via LD_LIBRARY_PATH."
      echo "It is not safe to upgrade the C library in this situation;"
      echo "please remove the directory from LD_LIBRARY_PATH and try again."
      exit 1
    fi
  fi
  if test -e /etc/ld.so.conf; then
    dirs=$(echo $(cat /etc/ld.so.conf))
    if check_dirs $dirs; then
      echo
      echo "Another copy of the C library was found via /etc/ld.so.conf."
      echo "It is not safe to upgrade the C library in this situation;"
      echo "please remove the directory from /etc/ld.so.conf and try again."
      exit 1
    fi
  fi
fi

if [ "$1" != abort-upgrade ] && [ "`uname -s`" = Linux ]
then
    # glibc kernel version check: KERNEL_VERSION_CHECK
kernel_compare_versions () {
    verA=$(($(echo "$1" | sed 's/$[0-9]*$\.$[0-9]*$\.$[0-9]*$.*/\1 \* 10000 + \2 \* 100 + \3/')))
    verB=$(($(echo "$3" | sed 's/$[0-9]*$\.$[0-9]*$\.$[0-9]*$.*/\1 \* 10000 + \2 \* 100 + \3/')))
    
    test $verA -$2 $verB
}

exit_check () {
    
    exit 1
}

# Test to make sure z < 255, in x.y.z-n form of kernel version
    # Also make sure we don't trip on x.y.zFOO-n form
    #kernel_rev=$(uname -r | tr -- - . | cut -d. -f3 | tr -d '[:alpha:]')
    kernel_rev=$(uname -r | sed 's/$[0-9]*\.[0-9]*\.$$[0-9]*$$.*$/\2/')
    if [ "$kernel_rev" -ge 255 ]
    then
        echo WARNING: Your kernel version indicates a revision number
        echo of 255 or greater.  Glibc has a number of built in
        echo assumptions that this revision number is less than 255.
        echo If you\'ve built your own kernel, please make sure that any 
        echo custom version numbers are appended to the upstream
        echo kernel number with a dash or some other delimiter.

exit_check
    fi

# sanity checking for the appropriate kernel on each architecture.
    realarch=`uname -m`
    kernel_ver=`uname -r`

# convert "armv4l" and similar to just "arm", and "mips64" and similar
    # to just "mips"
    case $realarch in
      arm*) realarch="arm";;
      mips*) realarch="mips";;
    esac

# intel i386 requires a recent kernel
    if [ "$realarch" = i386 ]
    then
	# From glibc 2.3.5-7 and linux-2.6 2.6.12-1, real-i386 is dropped.
	#if kernel_compare_versions "$kernel_ver" lt 2.4.24
	#then
	    echo WARNING: This machine has real i386 class processor.
	    echo Debian etch and later does not support such old hardware
	    echo any longer.
	    echo The reason is that \"bswap\" instruction is not supported
	    echo on i386 class processors, and some core libraries have 
	    echo such instruction.  You\'ll see illegal instruction error
	    echo when you upgrade your Debian system.
	    exit_check
	#fi
    fi

# The GNU libc is now built with --with-kernel= >= 2.4.1, except on m68k
    if [ "$realarch" != m68k ]
    then
	if kernel_compare_versions "$kernel_ver" lt 2.4.1
	then
	    echo WARNING: This version of glibc requires that you be running
	    echo kernel version 2.4.1 or later.  Earlier kernels contained
	    echo bugs that may render the system unusable if a modern version
	    echo of glibc is installed.
	    exit_check
	fi
    fi
    # SPARC sun4m requires a recent kernel
    if [ "$realarch" = sparc ]
    then
	cputype=`egrep '^type.*:.*sun4m' /proc/cpuinfo 2> /dev/null` || true

if [ "$cputype" != "" ]
	then
	    if kernel_compare_versions "$kernel_ver" lt 2.4.21
	    then
		echo WARNING: You have a cpu which requires kernel 2.4.21
		echo or greater in order to install this version of glibc.
		echo Please upgrade the kernel before installing this package.
		echo
		echo You should be able to install the latest version of the
		echo sparc kernel-image in order to satisfy this need. You
		echo can also download and compile the latest kernel source
		echo yourself from a kernel mirror $see http://www.kernel.org/$.
		exit_check
	    fi
	fi
    fi
    # HPPA boxes require latest fixes in the kernel to function properly.
    if [ "$realarch" = parisc ]
    then
	if kernel_compare_versions "$kernel_ver" lt 2.4.17
	then
		echo WARNING: This version of glibc requires that you be running
		echo atleast a 2.4.17 kernel in order to work properly. Earlier
		echo kernels did not provide the proper functionality in order 
		echo for the system to be stable. 
		exit_check
	fi
    fi
    # parisc64 boxes require latest fixes in the kernel 2.4.19-pa17 or later
    # (in 2.4.x), 2.5.53-pa3 or later (in 2.5.x), to function properly.
    # Note that parisc64 kernel version scheme is "`uname -r`-64".
    if [ "$realarch" = parisc64 ]
    then
	kernel_ver_pa=$(echo "$kernel_ver" | sed 's/pa//')
	if [ "$kernel_ver" = "$kernel_ver_pa" ]
	then
	    if kernel_compare_versions "$kernel_ver" lt 2.4.19-64
	    then
		echo WARNING: This version of glibc requires that you be
		echo running at least a 2.4.19-64 to work properly.
		echo Earlier kernels did not provide the proper functionality
		echo in order for the system to be stable. 
		exit_check
	    fi
	else
	    if kernel_compare_versions "$kernel_ver" lt 2.4.19-pa17
	    then
		echo WARNING: This version of glibc requires that you be
		echo running at least a 2.4.19-pa17 in $2.4$ or 2.5.53-pa3 
		echo $in 2.5$ to work properly.
		echo Earlier kernels did not provide the proper functionality
		echo in order for the system to be stable. 
		exit_check
	    fi
	fi
    fi

if [ "$realarch" = mips ] \
	&& [ i386 = mips ]
    then
	# MIPS (but not mipsel) require a kernel update for the msq fixes.
	if kernel_compare_versions "$kernel_ver" lt 2.4.22
	then
		echo WARNING: System V message queues require kernel 2.4.22 to
		echo work correctly on this architecture.  Some programs
		echo "(including perl) may not operate correctly."
		exit_check
	fi
    fi

# amd64 requires 2.6 kernel because we drop to support linuxthreads
    if [ "$realarch" = x86_64 ] \
	&& [ i386 = amd64 ]
    then
	if kernel_compare_versions "$kernel_ver" lt 2.6.0
	then
	    echo WARNING: POSIX threads library NPTL requires 2.6 and
	    echo later kernel on amd64.  If you use 2.4 kernel, please
	    echo upgrade your kernel before installing glibc.
	    exit_check
	fi
    fi

# In Ubuntu, we have dropped LinuxThreads.  We require the 2.6 kernel.
    if kernel_compare_versions "$kernel_ver" lt 2.6.0
    then
        echo WARNING: POSIX threads library NPTL requires 2.6 and
        echo later kernel.  You are using a 2.4 kernel, please
        echo upgrade your kernel before installing glibc.
        exit_check
    fi

exit 0

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