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linux_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 $verB
}
kfreebsd_compare_versions () {
verA=$(($(echo "$1" | sed 's/\([0-9]*\)\.\([0-9]*\).*/\1 \* 100 + \2/')))
verB=$(($(echo "$3" | sed 's/\([0-9]*\)\.\([0-9]*\).*/\1 \* 100 + \2/')))
test $verA -$2 $verB
}
kernel26_help() {
echo ""
echo "The installation of a 2.6 kernel _could_ ask you to install a new libc"
echo "first, this is NOT a bug, and should *NOT* be reported. In that case,"
echo "please add etch sources to your /etc/apt/sources.list and run:"
echo " apt-get install -t etch linux-image-2.6"
echo "Then reboot into this new kernel, and proceed with your upgrade"
}
exit_check () {
EXIT_CHECK
exit 1
}
system=`uname -s`
if [ "$system" = "Linux" ]
then
# 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 $realarch in
arm*) realarch="arm";;
mips*) realarch="mips";;
esac
# From glibc 2.3.5-7 real-i386 is dropped.
if [ "$realarch" = i386 ]
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
# arm boxes require __ARM_NR_set_tls in the kernel to function properly.
if [ "$realarch" = arm ]
then
if linux_compare_versions "$kernel_ver" lt 2.6.12
then
echo WARNING: This version of glibc requires that you be running
echo kernel version 2.6.12 or later. Earlier kernels contained
echo bugs that may render the system unusable if a modern version
echo of glibc is installed.
kernel26_help
exit_check
fi
fi
# Alpha and HPPA boxes require latest fixes in the kernel to function properly.
if [ "$realarch" = parisc -o "$realarch" = alpha ]
then
if linux_compare_versions "$kernel_ver" lt 2.6.9
then
echo WARNING: This version of glibc requires that you be running
echo kernel version 2.6.9 or later. Earlier kernels contained
echo bugs that may render the system unusable if a modern version
echo of glibc is installed.
kernel26_help
exit_check
fi
fi
# sh4 boxes require kernel version 2.6.11 minimum
if [ "$realarch" = sh4 ]
then
if linux_compare_versions "$kernel_ver" lt 2.6.11
then
echo WARNING: This version of glibc requires that you be running
echo kernel version 2.6.11 or later. Earlier kernels contained
echo bugs that may render the system unusable if a modern version
echo of glibc is installed.
kernel26_help
exit_check
fi
fi
# The GNU libc requires 2.6 kernel (except on m68k) because we drop to
# support linuxthreads
if [ "$realarch" != m68k ]
then
if linux_compare_versions "$kernel_ver" lt 2.6.8
then
echo WARNING: POSIX threads library NPTL requires kernel version
echo 2.6.8 or later. If you use a kernel 2.4, please upgrade it
echo before installing glibc.
kernel26_help
exit_check
fi
fi
# The GNU libc is now built with --with-kernel= >= 2.4.1 on m68k
if [ "$realarch" = m68k ]
then
if linux_compare_versions "$kernel_ver" lt 2.4.1
then
echo WARNING: This version of glibc requires that you be running
echo kernel version 2.4.1 or later. Earlier kernels contained
echo bugs that may render the system unusable if a modern version
echo of glibc is installed.
kernel26_help
exit_check
fi
fi
# From glibc 2.6-3 SPARC V8 support is dropped.
if [ "$realarch" = sparc ]
then
# The process could be run using linux32, check for /proc.
if [ -f /proc/cpuinfo ]
then
case "$(sed '/^type/!d;s/^type.*: //g' /proc/cpuinfo)" in
sun4u)
# UltraSPARC CPU
;;
sun4v)
# Niagara CPU
;;
*)
echo "WARNING: This machine has a SPARC V8 or earlier class processor."
echo "Debian lenny and later does not support such old hardware"
echo "any longer."
exit_check
;;
esac
fi
fi
elif [ $system = "GNU/kFreeBSD" ] ; then
kernel_ver=`uname -r`
if kfreebsd_compare_versions "$kernel_ver" lt 6.0
then
echo WARNING: This version of glibc uses UMTX_OP_WAIT and UMTX_OP_WAKE
echo syscalls that are not present in the current running kernel. They
echo have been added in kFreeBSD 6.0. Your system should still work,
echo but it is recommended to upgrade to a more recent version.
fi
fi
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