123 lines
4.1 KiB
Bash
Executable file
123 lines
4.1 KiB
Bash
Executable file
#!/bin/bash
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# CheckKernel checks if Kernel was updated and not aktivated (rebooted)
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#
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# (c) GPL by Ulf Bartholomäus ub1x@gmx.net
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VERSION="$( basename $0 ) Version 0.2.4 from 02.11.2021"
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#
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# Input: 1 parameter optional ("-d" = debug and "-v" = verbose / "-D" = Distro only / "-DV" = Distro and release only / "-K" = running KernelVerion / "-N" = New Kernel Version)
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# Output: text messages and a kdialog if this is installed
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# Returnvalue: 0 if Kernel OK and 10 if Kernel is changed
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#
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#
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# Changes:
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# 0.2.4: Change way to collect Distro Name from /etc/os-releas (if empty - provide old info)
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# 0.2.3: Fix error => update in case only one Kernel is avaialble
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# 0.2.2: Fix error => new Kernel update: replace initrd with vmlinuz check
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# 0.2.1: added -D -K and -N option
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# Fixed error and exit with more than one /boot/initrd-* file
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# 0.2.0: InitKernel und VmlzKernel entfernt,
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# [ $( ls -1 /boot/ | grep initrd- | wc -l ) -gt 1 ] && echo "** Error" || ls -1 /boot/ | grep initrd- | cut -d '-' -f 2,3,4
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# Some small changes and simplifications
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# 0.1.9: InitKernel erneut angepasstsys
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# 0.1.8: "==" -> "=" sowie kleinere Shönheitskorrekturen - sowie InitKernel mit awk statt cut
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# 0.1.7: remove "CheckKernel.sh: Zeile 33: lsb_release: Kommando nicht gefunden."
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# and => -d = debaug
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# 0.1.6: if "lsb_release" not available use "cat /etc/*-release" info
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# 0.1.5: Fix trouble if InitKernel is empty
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# 0.1.4: Fix some errors
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# 0.1.3: Fix running and new kernel are equal but shown as different
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# 0.1.2: Remove "initrd-" from InitKernel
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# 0.1.1: Add Kernel Info in kdialog
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# 0.1.0: exchange some direct calls against definition
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# add check if new Kernel is in GRUB Config file
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# 0.0.7: read Kernel version from menu.lst
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# 0.0.6: add verbose mode
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# 0.0.5: syslog messages
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# 0.0.4: returnvalue if Kernel is changed is 10
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# 0.0.3: hostname in kdialog title
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# 0.0.2: kdialog output
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# 0.0.1: generation
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#
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DEBUG="" # Debug mode ="1"
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MyDistro="" # Name of the Distro
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MyDstVer="" # Distro Version info
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MyKernel="" # Running Kernel Version
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InitKernel="" # Newest Kernel at initrd
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if [ $# -gt 0 ] && [ "$1" = "-d" ] ; then
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DEBUG="1"
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echo -e "\t<${VERSION}>"
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shift
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fi
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if [ -e /etc/os-release ]; then
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MyDistro="$( grep PRETTY_NAME /etc/os-release )"
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MyDistro="${MyDistro/*=\"/}" # remove first string till ="
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MyDistro="${MyDistro/\"*/}" # remove "
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MyDstVer="$( grep VERSION_ID /etc/os-release )"
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MyDstVer="${MyDstVer/*=\"/}" # remove first string till ="
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MyDstVer="(${MyDstVer/\"*/})" # remove "
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fi
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if [ -z "${MyDistro}" ] && [ -e /proc/version ]; then
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MyDistro="$( cat /proc/version )"
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MyDistro="${MyDistro/*;/}" # remove first string till ";"
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MyDistro="${MyDistro/)*/}" # remove anything behind ")"
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MyDistro="${MyDistro/# /}" # remove blanks in the beginning
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echo -n "Version ${MyDistro} | "
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fi
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if [ $# -gt 0 ] && [ "$1" = "-D" ] ; then
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echo "${MyDistro}"
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exit
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fi
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if [ $# -gt 0 ] && [ "$1" = "-DV" ] ; then
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echo "${MyDistro} ${MyDstVer}"
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exit
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fi
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if [ $# -gt 0 ] && [ "$1" = "-V" ] ; then
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echo "${MyDstVer}"
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exit
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fi
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MyKernel="$( uname -r )"
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if [ $# -gt 0 ] && [ "$1" = "-K" ] ; then
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echo "${MyKernel}"
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exit
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fi
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InitKernel="$( ls -1tr /boot/ | grep 'vmlinuz-' )"
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if [ -n "${InitKernel}" ] ; then
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InitKernel="${InitKernel/*vmlinuz-/}"
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fi
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if [ $# -gt 0 ] && [ "$1" = "-N" ] ; then
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echo "${InitKernel}"
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exit
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fi
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if [ "${MyKernel}" = "${InitKernel}" ] ; then
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if [ $# -gt 0 ] && [ "$1" = "-v" ] ; then
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echo -e "\t*** $( date "+%X / %d.%m.%Y" ) \tDistro: ${MyDistro} ${MyDstVer} \tKernel: ${MyKernel} \t*** Kernel OK ***"
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else
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echo "*** Kernel OK (${MyKernel})";
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fi
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else
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if ( [ $# -gt 0 ] && [ "$1" = "-v" ] ) ; then
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echo -e "\t*** $( date "+%X / %d.%m.%Y" ) \tDistro: ${MyDistro} ${MyDstVer} \tKernel: ${MyKernel} \t*** NEW Kernel ${InitKernel}!!! ***"
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else
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MsgTxt="*** Kernel Updated from ${MyKernel} to ${InitKernel}! => please reboot"
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echo "${MsgTxt}";
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logger -t $( basename $0 ) "${MsgTxt}"
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if [ $# -eq 0 ] && [ -e $( which kdialog 2>> /dev/null ) ] ; then
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kdialog --title "*** $( hostname ) ***" --error "${MsgTxt}" >> /dev/null 2>> /dev/null
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fi
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fi
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exit 10
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fi
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