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annotate removeKernel @ 185:bf38575e8b28

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author Dirk Olmes <dirk.olmes@codedo.de>
date Sat, 01 Oct 2022 17:09:12 +0200
parents 249b37a8c917
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/bash
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2
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3 if [ `whoami` != "root" ]; then
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4 echo "$0 must be run as root!"
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5 exit 1
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6 fi
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7
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8 if [ $# -lt 3 ]; then
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9 echo "usage: $0 <major minor micro [revision], e.g. 2 6 21 r4>"
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10 exit 1
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11 fi
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12
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13 MAJOR=$1
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14 MINOR=$2
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15 MICRO=$3
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16 if [ $# -gt 3 ]; then
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17 REVISION=$4
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18 fi
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19
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20 FULL_VERSION="${MAJOR}.${MINOR}.${MICRO}"
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21 if [[ "${REVISION}" != "" ]]; then
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22 FULL_VERSION="${FULL_VERSION}-${REVISION}"
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23 fi
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24
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25 ARCH=`uname -m`
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26 if [ "$ARCH" = "i686" ]; then
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27 ARCH="x86"
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28 fi
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29
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30 KERNEL_FLAVOR=""
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31 KERNEL_EBUILD="vanilla-sources"
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32 if [[ "$(grep gentoo-sources /var/lib/portage/world)" != "" ]]; then
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33 KERNEL_FLAVOR="-gentoo"
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34 KERNEL_EBUILD="gentoo-sources"
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35 fi
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36
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37 LOGFILE=/tmp/removeKernel-$$.log
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38
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39 # unmerge the kernel
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40 cd /usr/src
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41 KERNEL_DIR="linux-${MAJOR}.${MINOR}.${MICRO}${KERNEL_FLAVOR}"
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42 if [[ "${REVISION}" != "" ]]; then
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43 KERNEL_DIR="${KERNEL_DIR}-${REVISION}"
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44 fi
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45 if [[ -d $KERNEL_DIR ]]; then
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46 KERNEL_NAME="${KERNEL_EBUILD}-${FULL_VERSION}"
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47
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48 echo "unmerge kernel $KERNEL_NAME" >> $LOGFILE 2>&1
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49 emerge --unmerge $KERNEL_NAME >> $LOGFILE 2>&1
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50
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51 echo "remove $KERNEL_DIR" >> $LOGFILE 2>&1
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52 rm -r $KERNEL_DIR >> $LOGFILE 2>&1
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53 fi
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54
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55 # remove modules
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56 cd /lib/modules
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57 LIB_DIR="${FULL_VERSION}${KERNEL_FLAVOR}-${ARCH}"
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58 if [[ -d ${LIB_DIR} ]]; then
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59 echo "remove modules from $(pwd)/${LIB_DIR}" >> $LOGFILE 2>&1
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60 rm -r ${LIB_DIR} >> $LOGFILE 2>&1
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61 fi
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62
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63 # remove the kernel and stuff, check if /boot is mounted first
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64 MOUNTED=`mount | grep /boot`
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65 if [ "$MOUNTED" = "" ]; then
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66 echo "mount /boot" >> $LOGFILE 2>&1
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67 mount /boot >> $LOGFILE 2>&1
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68 fi
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69
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70 cd /boot
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71
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72 SYSTEM_MAP="System.map-${FULL_VERSION}${KERNEL_FLAVOR}-${ARCH}"
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73 if [[ -f ${SYSTEM_MAP} ]]; then
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74 rm ${SYSTEM_MAP} >> $LOGFILE 2>&1
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75 fi
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76 if [[ -f ${SYSTEM_MAP}.old ]]; then
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77 rm ${SYSTEM_MAP}.old >> $LOGFILE 2>&1
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78 fi
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79
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80 INITRAMFS="initramfs-${FULL_VERSION}${KERNEL_FLAVOR}-${ARCH}.img"
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81 if [[ -f ${INITRAMFS} ]]; then
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82 rm ${INITRAMFS} >> $LOGFILE 2>&1
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83 fi
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84 if [[ -f ${INITRAMFS}.old ]]; then
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85 rm ${INITRAMFS}.old >> $LOGFILE 2>&1
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86 fi
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87
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88 KERNEL="vmlinuz-${FULL_VERSION}${KERNEL_FLAVOR}-${ARCH}"
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89 if [[ -f $KERNEL ]]; then
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90 rm $KERNEL >> $LOGFILE 2>&1
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91 fi
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92 if [[ -f $KERNEL.old ]]; then
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93 rm $KERNEL.old >> $LOGFILE 2>&1
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94 fi
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95
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96 cd /var/tmp/genkernel
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97 INITRAMFS="initramfs-${ARCH}-${FULL_VERSION}${KERNEL_FLAVOR}-${ARCH}"
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98 if [[ -f ${INITRAMFS} ]]; then
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99 rm ${INITRAMFS} >> $LOGFILE 2>&1
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100 fi
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101
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102 # if we got until here, just remove the logfile again
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103 rm $LOGFILE