code.delx.au - refind/blob - mvrefind

   1 #!/bin/bash
   2 #
   3 # Linux script to move an existing rEFInd installation from one directory to another
   4 #
   5 # Usage:
   6 #
   7 # ./mvrefind /path/to/source /path/to/destination
   8 #
   9 # Typically used to "hijack" or "unhijack" a Windows boot loader location or
  10 # to help convert a rEFInd installation made in BIOS mode to one that works
  11 # in EFI mode.
  12 #
  13 # Revision history:
  14 #
  15 # 0.10.0  -- Renamed from mvrefind.sh to mvrefind
  16 # 0.6.3   -- Initial release
  17 #
  18 # Note: mvrefind version numbers match those of the rEFInd package
  19 # with which they first appeared.
  20
  21 RootDir="/"
  22 SourceX64="refind_x64.efi"
  23 TargetX64=$SourceX64
  24 SourceIA32="refind_ia32.efi"
  25 TargetIA32=$SourceIA32
  26 SourceShim="shim.efi"
  27 TargetShim=$SourceShim
  28 SourceDir=`readlink -f ${1}`
  29 TargetDir=`readlink -f ${2}`
  30
  31 # Identifies the ESP's location (/boot or /boot/efi); aborts if the ESP isn't
  32 # mounted at either location. Also splits the ESP location from SourceDir and
  33 # TargetDir, leaving them intact but creating new EspSourceDir and EspTargetDir
  34 # variables containing only the ESP components thereof. These new variables
  35 # are also converted to all-lowercase and any trailing slash is stripped, to
  36 # assist in comparisons. (This is reasonable because FAT is case-insensitive.)
  37 # Sets InstallDir to the ESP mount point.
  38 FindLinuxESP() {
  39    EspLine=`df $RootDir/boot/efi 2> /dev/null | grep boot/efi`
  40    if [[ ! -n $EspLine ]] ; then
  41       EspLine=`df $RootDir/boot | grep boot`
  42    fi
  43    InstallDir=`echo $EspLine | cut -d " " -f 6`
  44    if [[ -n $InstallDir ]] ; then
  45       EspFilesystem=`grep $InstallDir /etc/mtab | cut -d " " -f 3`
  46    fi
  47    if [[ $EspFilesystem != 'vfat' ]] ; then
  48       echo "$RootDir/boot/efi doesn't seem to be on a VFAT filesystem. The ESP must be"
  49       echo "mounted at $RootDir/boot or $RootDir/boot/efi and it must be VFAT! Aborting!"
  50       exit 1
  51    fi
  52
  53    # Sanity check on source & target....
  54    EspPathLength=`expr length $InstallDir`
  55    Temp=`echo $SourceDir | cut -c 1-$EspPathLength`
  56    if [[ $Temp != $InstallDir ]] ; then
  57       echo "$SourceDir isn't on the ESP ($InstallDir)! Aborting!"
  58       exit 1
  59    fi
  60    Temp=`echo $TargetDir | cut -c 1-$EspPathLength`
  61    if [[ $Temp != $InstallDir ]] ; then
  62       echo "$TargetDir isn't on the ESP ($InstallDir)! Aborting!"
  63       exit 1
  64    fi
  65
  66    # Temporarily replace "/" in pathnames with ",", so as to enable sed to
  67    # work on them
  68    TempInstallDir=`echo $InstallDir | tr '/' ','`
  69    Temp=`echo $SourceDir | tr '/' ',' | sed s/${TempInstallDir}//g | tr ',' '/' | tr '[A-Z]' '[a-z]'`
  70    EspSourceDir=`dirname $Temp`/`basename $Temp`
  71    Temp=`echo $TargetDir | tr '/' ',' | sed s/${TempInstallDir}//g | tr ',' '/' | tr '[A-Z]' '[a-z]'`
  72    EspTargetDir=`dirname $Temp`/`basename $Temp`
  73    if [[ $EspSourceDir == $EspTargetDir ]] ; then
  74       echo "$SourceDir is the same as $TargetDir! Aborting!"
  75       exit 1
  76    fi
  77 } # FindLinuxESP
  78
  79 # Adjust filename variables appropriately for their locations and detected
  80 # presence (or lack thereof) of shim installation
  81 AdjustFilenames() {
  82    if [[ -f $SourceDir/grubx64.efi ]] ; then
  83       SourceX64="grubx64.efi"
  84       TargetX64=$SourceX64
  85       if [[ $EspSourceDir == "/efi/boot" ]] ; then
  86          SourceShim="bootx64.efi"
  87       elif [[ $EspSourceDir == "/efi/microsoft/boot" ]] ; then
  88          SourceShim="bootmgfw.efi"
  89       fi
  90    else
  91       SourceShim="none"
  92       TargetShim="none"
  93       if [[ $EspSourceDir == "/efi/boot" ]] ; then
  94          SourceX64="bootx64.efi"
  95          SourceIA32="bootia32.efi"
  96       elif [[ $EspSourceDir == "/efi/microsoft/boot" ]] ; then
  97          SourceX64="bootmgfw.efi"
  98       fi
  99    fi
 100
 101    if [[ $EspTargetDir == "/efi/boot" ]] ; then
 102       if [[ $TargetShim == "none" ]] ; then
 103          TargetX64="bootx64.efi"
 104          TargetIA32="bootia32.efi"
 105       else
 106          TargetShim="bootx64.efi"
 107       fi
 108    elif [[ $EspTargetDir == "/efi/microsoft/boot" ]] ; then
 109       if [[ $TargetShim == "none" ]] ; then
 110          TargetX64="bootmgfw.efi"
 111       else
 112          TargetShim="bootmgfw.efi"
 113       fi
 114    fi
 115 } # AdjustFilenames()
 116
 117 # Checks for the presence of necessary files, including both boot loaders
 118 # and support utilities (efibootmgr, etc.)
 119 CheckForFiles() {
 120    if [[ (! -f $SourceDir/$SourceX64 && ! -f $SourceDir/$SourceIA32) ||
 121          ($SourceShim != "none" && ! -f $SourceDir/SourceShim) ||
 122          ! -f $SourceDir/refind.conf ]] ; then
 123       echo "There doesn't seem to be a rEFInd installation at $SourceDir!"
 124       echo "Aborting!"
 125       exit 1
 126    fi
 127    if [[ $EspTargetDir != "/efi/boot" && $EspTargetDir != "/efi/microsoft/boot" ]] ; then
 128       Efibootmgr=`which efibootmgr 2> /dev/null`
 129       if [[ ! -f $Efibootmgr ]] ; then
 130          echo "Moving to a non-default directory requires a working efibootmgr utility, but"
 131          echo "one can't be found! Aborting!"
 132          exit 1
 133       elif [[ ! -d "/sys/firmware/efi" ]] ; then
 134          echo "Moving to a non-default directory requires a boot into EFI mode, but we seem"
 135          echo "to be running in BIOS mode. (Perhaps typing 'modprobe efivars' will fix this."
 136          echo "Aborting!"
 137       fi
 138    fi
 139 } # CheckForFiles()
 140
 141 # Do final checks & then move the files!
 142 MoveFiles() {
 143    ExistingFiles=`find $TargetDir -name "*.efi" 2> /dev/null`
 144    if [[ -n $ExistingFiles && $EspTargetDir != "/efi/boot" && $EspTargetDir != "/efi/microsoft/boot" ]] ; then
 145       echo "$TargetDir isn't empty! Aborting!"
 146       exit 1
 147    fi
 148
 149    if [[ $EspTargetDir == "/efi/boot" && -d $TargetDir ]] ; then
 150       if [[ -d $InstallDir/EFI/BOOT-rEFIndBackup ]] ; then
 151          echo ""
 152          echo "Caution: An existing backup of a default boot loader exists! If the current"
 153          echo "default boot loader and the backup are different boot loaders, the current"
 154          echo "one will become inaccessible."
 155          echo ""
 156          echo -n "Do you want to proceed with moving (Y/N)? "
 157          read YesNo
 158          if [[ $YesNo == "Y" || $YesNo == "y" ]] ; then
 159             echo "OK; continuing with the move..."
 160          else
 161             exit 0
 162          fi
 163       else
 164          mv $TargetDir $InstallDir/EFI/BOOT-refindBackup &> /dev/null
 165       fi
 166    fi
 167
 168    if [[ $EspTargetDir == "/efi/microsoft/boot" && -d $TargetDir ]] ; then
 169       mv -n $EspTargetDir/bootmgfw.efi $InstallDir/EFI/Microsoft/
 170    fi
 171
 172    mkdir -p $TargetDir
 173    mv $SourceDir/icons $TargetDir/ 2> /dev/null
 174    mv $SourceDir/icons-backup $TargetDir/ 2> /dev/null
 175    mv $SourceDir/drivers_* $TargetDir/ 2> /dev/null
 176    mv $SourceDir/keys $TargetDir 2> /dev/null
 177    mv $SourceDir/$SourceX64 $TargetDir/$TargetX64 2> /dev/null
 178    mv $SourceDir/$SourceIA32 $TargetDir/$TargetIA32 2> /dev/null
 179    mv $SourceDir/$SourceShim $TargetDir/$TargetShim 2> /dev/null
 180    mv $SourceDir/refind.conf* $TargetDir/ 2> /dev/null
 181    rmdir $SourceDir 2> /dev/null
 182 } # MoveFiles()
 183
 184 # Clean up after moving files -- mainly restoring old backed-up files, if present
 185 PostMoveCleanup() {
 186    if [[ $EfiSourceDir == "/efi/boot" && -d $InstallDir/EFI/BOOT-rEFIndBackup && ! -d $SourceDir ]] ; then
 187       mv $InstallDir/EFI/BOOT-rEFIndBackup $SourceDir 2> /dev/null
 188    fi
 189    if [[ $EfiSourceDir == "/efi/microsoft/boot" && -f $InstallDir/EFI/Microsoft/bootmgfw.efi ]] ; then
 190       mv -n $InstallDir/EFI/Microsoft/bootmgfw.efi $SourceDir/bootmgfw.efi
 191    fi
 192 } # PostMoveCleanup()
 193
 194 # If necessary, create a new NVRAM entry for the new location
 195 AddNvramEntry() {
 196    InstallIt="0"
 197    Efibootmgr=`which efibootmgr 2> /dev/null`
 198    InstallDisk=`grep $InstallDir /etc/mtab | cut -d " " -f 1 | cut -c 1-8`
 199    PartNum=`grep $InstallDir /etc/mtab | cut -d " " -f 1 | cut -c 9-10`
 200
 201    if [[ $TargetShim != "none" ]] ; then
 202       EntryFilename=$EspTargetDir/$TargetShim
 203    else
 204       CpuType=`uname -m`
 205       if [[ $CpuType == 'x86_64' ]] ; then
 206          EntryFilename=$EspTargetDir/$TargetX64
 207       else
 208          EntryFilename=$EspTargetDir/$TargetIA32
 209       fi
 210    fi # if/else
 211
 212    EfiEntryFilename=`echo ${EntryFilename//\//\\\}`
 213    EfiEntryFilename2=`echo ${EfiEntryFilename} | sed s/\\\\\\\\/\\\\\\\\\\\\\\\\/g`
 214    ExistingEntry=`$Efibootmgr -v | grep -i $EfiEntryFilename2`
 215
 216    if [[ $ExistingEntry ]] ; then
 217       ExistingEntryBootNum=`echo $ExistingEntry | cut -c 5-8`
 218       FirstBoot=`$Efibootmgr | grep BootOrder | cut -c 12-15`
 219       if [[ $ExistingEntryBootNum != $FirstBoot ]] ; then
 220          $Efibootmgr -b $ExistingEntryBootNum -B &> /dev/null
 221          InstallIt="1"
 222       fi
 223    else
 224       InstallIt="1"
 225    fi
 226
 227    if [[ $InstallIt == "1" ]] ; then
 228       if [[ $EfiTargetDir == "/efi/microsoft/boot" ]] ; then
 229          # Name it the way some firmware expects -- see http://mjg59.dreamwidth.org/20187.html
 230          $Efibootmgr -c -l $EfiEntryFilename -L "Windows Boot Manager" -d $InstallDisk -p $PartNum &> /dev/null
 231       else
 232          $Efibootmgr -c -l $EfiEntryFilename -L "rEFInd Boot Manager" -d $InstallDisk -p $PartNum &> /dev/null
 233       fi
 234       if [[ $? != 0 ]] ; then
 235          EfibootmgrProblems=1
 236       fi
 237    fi
 238
 239    if [[ $EfibootmgrProblems ]] ; then
 240       echo
 241       echo "ALERT: There were problems running the efibootmgr program! Your moved rEFInd"
 242       echo "might not run!"
 243       echo
 244    fi
 245 } # AddNvramEntry
 246
 247 #
 248 # Main body of script
 249 #
 250
 251 if [[ $# != 2 ]] ; then
 252    echo "Usage: $0 {source-directory} {target-directory}"
 253    exit 1
 254 fi
 255 if [[ `whoami` != "root" ]] ; then
 256    echo "Not running as root! Aborting!"
 257    exit 1
 258 fi
 259
 260 FindLinuxESP
 261 AdjustFilenames
 262 CheckForFiles
 263 MoveFiles
 264 PostMoveCleanup
 265 AddNvramEntry