code.delx.au - refind/blob - mvrefind.sh

   1 #!/bin/bash
   2 #
   3 # Linux script to move an existing rEFInd installation from one directory to another
   4 #
   5 # Usage:
   6 #
   7 # ./mvrefind.sh /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 # 0.6.3   -- Initial release
  16 #
  17 # Note: mvrefind.sh version numbers match those of the rEFInd package
  18 # with which they first appeared.
  19
  20 RootDir="/"
  21 SourceX64="refind_x64.efi"
  22 TargetX64=$SourceX64
  23 SourceIA32="refind_ia32.efi"
  24 TargetIA32=$SourceIA32
  25 SourceShim="shim.efi"
  26 TargetShim=$SourceShim
  27 SourceDir=${1}
  28 TargetDir=${2}
  29
  30 # Identifies the ESP's location (/boot or /boot/efi); aborts if the ESP isn't
  31 # mounted at either location. Also splits the ESP location from SourceDir and
  32 # TargetDir, leaving them intact but creating new EspSourceDir and EspTargetDir
  33 # variables containing only the ESP components thereof. These new variables
  34 # are also converted to all-lowercase and any trailing slash is stripped, to
  35 # assist in comparisons. (This is reasonable because FAT is case-insensitive.)
  36 # Sets InstallDir to the ESP mount point.
  37 FindLinuxESP() {
  38    EspLine=`df $RootDir/boot/efi 2> /dev/null | grep boot/efi`
  39    if [[ ! -n $EspLine ]] ; then
  40       EspLine=`df $RootDir/boot | grep boot`
  41    fi
  42    InstallDir=`echo $EspLine | cut -d " " -f 6`
  43    if [[ -n $InstallDir ]] ; then
  44       EspFilesystem=`grep $InstallDir /etc/mtab | cut -d " " -f 3`
  45    fi
  46    if [[ $EspFilesystem != 'vfat' ]] ; then
  47       echo "$RootDir/boot/efi doesn't seem to be on a VFAT filesystem. The ESP must be"
  48       echo "mounted at $RootDir/boot or $RootDir/boot/efi and it must be VFAT! Aborting!"
  49       exit 1
  50    fi
  51
  52    # Sanity check on source & target....
  53    EspPathLength=`expr length $InstallDir`
  54    Temp=`echo $SourceDir | cut -c 1-$EspPathLength`
  55    if [[ $Temp != $InstallDir ]] ; then
  56       echo "$SourceDir isn't on the ESP ($InstallDir)! Aborting!"
  57       exit 1
  58    fi
  59    Temp=`echo $TargetDir | cut -c 1-$EspPathLength`
  60    if [[ $Temp != $InstallDir ]] ; then
  61       echo "$TargetDir isn't on the ESP ($InstallDir)! Aborting!"
  62       exit 1
  63    fi
  64
  65    # Temporarily replace "/" in pathnames with ",", so as to enable sed to
  66    # work on them
  67    TempInstallDir=`echo $InstallDir | tr '/' ','`
  68    Temp=`echo $SourceDir | tr '/' ',' | sed s/${TempInstallDir}//g | tr ',' '/' | tr '[A-Z]' '[a-z]'`
  69    EspSourceDir=`dirname $Temp`/`basename $Temp`
  70    Temp=`echo $TargetDir | tr '/' ',' | sed s/${TempInstallDir}//g | tr ',' '/' | tr '[A-Z]' '[a-z]'`
  71    EspTargetDir=`dirname $Temp`/`basename $Temp`
  72    if [[ $EspSourceDir == $EspTargetDir ]] ; then
  73       echo "$SourceDir is the same as $TargetDir! Aborting!"
  74       exit 1
  75    fi
  76 } # FindLinuxESP
  77
  78 # Adjust filename variables appropriately for their locations and detected
  79 # presence (or lack thereof) of shim installation
  80 AdjustFilenames() {
  81    echo "Entering 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
 116    echo "Leaving AdjustFilenames():"
 117    echo "  SourceX64 = $SourceX64, TargetX64 = $TargetX64"
 118    echo "  SourceIA32 = $SourceIA32, TargetIA32 = $TargetIA32"
 119    echo "  SourceShim = $SourceShim, TargetShim = $TargetShim"
 120 } # AdjustFilenames()
 121
 122 # Checks for the presence of necessary files, including both boot loaders
 123 # and support utilities (efibootmgr, etc.)
 124 CheckForFiles() {
 125    echo "Entering CheckForFiles()"
 126    if [[ (! -f $SourceDir/$SourceX64 && ! -f $SourceDir/$SourceIA32) ||
 127          ($SourceShim != "none" && ! -f $SourceDir/SourceShim) ||
 128          ! -f $SourceDir/refind.conf ]] ; then
 129       echo "There doesn't seem to be a rEFInd installation at $SourceDir!"
 130       echo "Aborting!"
 131       exit 1
 132    fi
 133    if [[ $EspTargetDir != "/efi/boot" && $EspTargetDir != "/efi/microsoft/boot" ]] ; then
 134       Efibootmgr=`which efibootmgr 2> /dev/null`
 135       if [[ ! -f $Efibootmgr ]] ; then
 136          echo "Moving to a non-default directory requires a working efibootmgr utility, but"
 137          echo "one can't be found! Aborting!"
 138          exit 1
 139       elif [[ ! -d "/sys/firmware/efi" ]] ; then
 140          echo "Moving to a non-default directory requires a boot into EFI mode, but we seem"
 141          echo "to be running in BIOS mode. (Perhaps typing 'modprobe efivars' will fix this."
 142          echo "Aborting!"
 143       fi
 144    fi
 145 } # CheckForFiles()
 146
 147 # Do final checks & then move the files!
 148 MoveFiles() {
 149    echo "Entering MoveFiles()"
 150    ExistingFiles=`find $TargetDir -name "*.efi" 2> /dev/null`
 151    if [[ -n $ExistingFiles && $EspTargetDir != "/efi/boot" && $EspTargetDir != "/efi/microsoft/boot" ]] ; then
 152       echo "$TargetDir isn't empty! Aborting!"
 153       exit 1
 154    fi
 155
 156    if [[ $EspTargetDir == "/efi/boot" && -d $TargetDir ]] ; then
 157       if [[ -d $InstallDir/EFI/BOOT-rEFIndBackup ]] ; then
 158          echo ""
 159          echo "Caution: An existing backup of a default boot loader exists! If the current"
 160          echo "default boot loader and the backup are different boot loaders, the current"
 161          echo "one will become inaccessible."
 162          echo ""
 163          echo -n "Do you want to proceed with moving (Y/N)? "
 164          read YesNo
 165          if [[ $YesNo == "Y" || $YesNo == "y" ]] ; then
 166             echo "OK; continuing with the move..."
 167          else
 168             exit 0
 169          fi
 170       else
 171          mv $TargetDir $InstallDir/EFI/BOOT-refindBackup &> /dev/null
 172       fi
 173    fi
 174
 175    if [[ $EspTargetDir == "/efi/microsoft/boot" && -d $TargetDir ]] ; then
 176       mv -n $EspTargetDir/bootmgfw.efi $InstallDir/EFI/Microsoft/
 177    fi
 178
 179    mkdir -p $TargetDir
 180    mv $SourceDir/icons $TargetDir/ 2> /dev/null
 181    mv $SourceDir/icons-backup $TargetDir/ 2> /dev/null
 182    mv $SourceDir/drivers_* $TargetDir/ 2> /dev/null
 183    mv $SourceDir/keys $TargetDir 2> /dev/null
 184    mv $SourceDir/$SourceX64 $TargetDir/$TargetX64 2> /dev/null
 185    mv $SourceDir/$SourceIA32 $TargetDir/$TargetIA32 2> /dev/null
 186    mv $SourceDir/$SourceShim $TargetDir/$TargetShim 2> /dev/null
 187    mv $SourceDir/refind.conf* $TargetDir/ 2> /dev/null
 188    rmdir $SourceDir 2> /dev/null
 189 } # MoveFiles()
 190
 191 # Clean up after moving files -- mainly restoring old backed-up files, if present
 192 PostMoveCleanup() {
 193    if [[ $EfiSourceDir == "/efi/boot" && -d $InstallDir/EFI/BOOT-rEFIndBackup && ! -d $SourceDir ]] ; then
 194       mv $InstallDir/EFI/BOOT-rEFIndBackup $SourceDir 2> /dev/null
 195    fi
 196    if [[ $EfiSourceDir == "/efi/microsoft/boot" && -f $InstallDir/EFI/Microsoft/bootmgfw.efi ]] ; then
 197       mv -n $InstallDir/EFI/Microsoft/bootmgfw.efi $SourceDir/bootmgfw.efi
 198    fi
 199 } # PostMoveCleanup()
 200
 201 # If necessary, create a new NVRAM entry for the new location
 202 AddNvramEntry() {
 203    echo "Entering AddNvramEntry()"
 204    InstallIt="0"
 205    Efibootmgr=`which efibootmgr 2> /dev/null`
 206    InstallDisk=`grep $InstallDir /etc/mtab | cut -d " " -f 1 | cut -c 1-8`
 207    PartNum=`grep $InstallDir /etc/mtab | cut -d " " -f 1 | cut -c 9-10`
 208
 209    if [[ $TargetShim != "none" ]] ; then
 210       EntryFilename=$TargetDir/$TargetShim
 211    else
 212       CpuType=`uname -m`
 213       if [[ $CpuType == 'x86_64' ]] ; then
 214          EntryFilename=$TargetDir/$TargetX64
 215       else
 216          EntryFilename=$TargetDir/$TargetIA32
 217       fi
 218    fi # if/else
 219
 220    EfiEntryFilename=`echo ${EntryFilename//\//\\\}`
 221    EfiEntryFilename2=`echo ${EfiEntryFilename} | sed s/\\\\\\\\/\\\\\\\\\\\\\\\\/g`
 222    ExistingEntry=`$Efibootmgr -v | grep $EfiEntryFilename2`
 223
 224    if [[ $ExistingEntry ]] ; then
 225       ExistingEntryBootNum=`echo $ExistingEntry | cut -c 5-8`
 226       FirstBoot=`$Efibootmgr | grep BootOrder | cut -c 12-15`
 227       if [[ $ExistingEntryBootNum != $FirstBoot ]] ; then
 228          echo "An existing rEFInd boot entry exists, but isn't set as the default boot"
 229          echo "manager. The boot order is being adjusted to make rEFInd the default boot"
 230          echo "manager. If this is NOT what you want, you should use efibootmgr to"
 231          echo "manually adjust your EFI's boot order."
 232          $Efibootmgr -b $ExistingEntryBootNum -B &> /dev/null
 233          InstallIt="1"
 234       fi
 235    else
 236       InstallIt="1"
 237    fi
 238
 239    if [[ $InstallIt == "1" ]] ; then
 240       $Efibootmgr -c -l $EfiEntryFilename -L "rEFInd Boot Manager" -d $InstallDisk -p $PartNum &> /dev/null
 241       if [[ $? != 0 ]] ; then
 242          EfibootmgrProblems=1
 243       fi
 244    fi
 245
 246    if [[ $EfibootmgrProblems ]] ; then
 247       echo
 248       echo "ALERT: There were problems running the efibootmgr program! Your moved rEFInd"
 249       echo "might not run!"
 250       echo
 251    fi
 252 } # AddNvramEntry
 253
 254 #
 255 # Main body of script
 256 #
 257
 258 if [[ $# != 2 ]] ; then
 259    echo "Usage: $0 {source-directory} {target-directory}"
 260    exit 1
 261 fi
 262 if [[ `whoami` != "root" ]] ; then
 263    echo "Not running as root! Aborting!"
 264    exit 1
 265 fi
 266
 267 FindLinuxESP
 268 AdjustFilenames
 269 CheckForFiles
 270 MoveFiles
 271 PostMoveCleanup
 272 echo "EspTargetDir == \"$EspTargetDir\""
 273 if [[ $EspTargetDir != "/efi/boot" && $EspTargetDir != "/efi/microsoft/boot" ]] ; then
 274    AddNvramEntry
 275 fi