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    • /[magellan-source]/trunk/installer/include/prepare_bootloader.sh

    Contents of /trunk/installer/include/prepare_bootloader.sh

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    Revision 1070 - (show annotations) (download) (as text)
    Mon May 31 22:51:09 2010 UTC (13 years, 10 months ago) by niro
    File MIME type: application/x-sh
    File size: 3206 byte(s) 
    -fixed pipelines again
    1 #!/bin/bash
    2 # $Id$
    3
    4 source /etc/installer.conf
    5 source ${INSTALLER_DIR}/include/hwdetection.sh
    6
    7 : ${INSTALL_ROOT="/mnt/magellan"}
    8
    9 create_device_map()
    10 {
    11 local chroot
    12
    13 [[ ! -z ${INSTALL_ROOT} ]] && chroot=chrooted
    14
    15 # create device.map
    16 ${chroot} grub --batch --no-floppy --no-config-file --device-map=/boot/grub/device.map </dev/null
    17 }
    18
    19 install_grub()
    20 {
    21 local chroot
    22 local grub_disk
    23
    24 if [[ -z ${PARTITION_DISK_BOOT} ]]
    25 then
    26 grub_disk="${PARTITION_DISK_ROOT}"
    27 else
    28 grub_disk="${PARTITION_DISK_BOOT}"
    29 fi
    30
    31 [[ ! -z ${INSTALL_ROOT} ]] && chroot=chrooted
    32
    33 # update grub
    34 ${chroot} grub --batch --no-floppy << EOF
    35 root $(convert_device ${grub_disk})
    36 setup $(convert_device ${grub_disk} | sed "s:,[0-9]::")
    37 quit
    38 EOF
    39
    40 return 0
    41 }
    42
    43 convert_device()
    44 {
    45 local device="$1"
    46 local root_part=
    47
    48 # extract device type (block) and major number for root drive
    49 local major_minor=$(ls -Ll ${device} | awk '{if ($6 < 64) printf("%c%d0", $1, $5); else printf("%c%d1", $1, $5)}')
    50
    51 # find the matching BIOS device
    52 for bios_drive in $(grep -v '^#' ${INSTALL_ROOT}/boot/grub/device.map | awk '{print $2}')
    53 do
    54 bios_major_minor=$(ls -Ll ${bios_drive} 2>/dev/null | awk '{if ($6 < 64) printf("%c%d0", $1, $5); else printf("%c%d1", $1, $5)}')
    55
    56 if [[ ${major_minor} = ${bios_major_minor} ]]
    57 then
    58 # we found it
    59 root_drive=$(grep ${bios_drive} ${INSTALL_ROOT}/boot/grub/device.map | awk '{print $1}')
    60 root_part=$(ls -Ll ${device} | awk '{print $6}')
    61 root_part=$(( ${root_part} % 16 - 1 ))
    62 break
    63 fi
    64 done
    65
    66 drive=$(echo ${root_drive} | sed "s:)$:,${root_part}):")
    67 echo ${drive}
    68 }
    69
    70 add_grub_conf()
    71 {
    72 echo "$@" >> ${INSTALL_ROOT}/boot/grub/grub.conf
    73 }
    74
    75 create_grub_conf()
    76 {
    77 local splashimage
    78 local grub_disk
    79
    80 if [[ -z ${PARTITION_DISK_BOOT} ]]
    81 then
    82 grub_disk="${PARTITION_DISK_ROOT}"
    83 else
    84 grub_disk="${PARTITION_DISK_BOOT}"
    85 fi
    86
    87 # create an empty one
    88 :> ${INSTALL_ROOT}/boot/grub/grub.conf
    89
    90 add_grub_conf "default 0"
    91 add_grub_conf "timeout 10"
    92 add_grub_conf ""
    93
    94 # our splashimage
    95 splashimage="magellan.xpm.gz"
    96
    97 # forcefully use gfxsplash
    98 [[ ! -f ${INSTALL_ROOT}/boot/${splashimage} ]] && cp ${INSTALLER_DIR}/data/magellan-black2.xpm.gz ${INSTALL_ROOT}/boot/${splashimage}
    99
    100 if [[ -f ${INSTALL_ROOT}/boot/${splashimage} ]]
    101 then
    102 add_grub_conf "# splash image"
    103 add_grub_conf "splashimage $(convert_device ${grub_disk})/boot/${splashimage}"
    104 add_grub_conf "foreground FFFFFF"
    105 add_grub_conf "background 253861"
    106
    107 add_grub_conf ""
    108 else
    109 add_grub_conf "# some pretty colors"
    110 add_grub_conf "color cyan/blue white/blue"
    111 add_grub_conf ""
    112 fi
    113
    114 add_grub_conf "title Magellan-Linux $(< ${INSTALL_ROOT}/etc/mageversion) ($(readlink ${INSTALL_ROOT}/boot/vmlinuz | sed s:kernel-::))"
    115 add_grub_conf "root $(convert_device ${grub_disk})"
    116 add_grub_conf "kernel /boot/$(readlink ${INSTALL_ROOT}/boot/vmlinuz) root=UUID=$(get_uuid ${PARTITION_DISK_ROOT})"
    117 add_grub_conf "initrd /boot/$(readlink ${INSTALL_ROOT}/boot/initrd)"
    118
    119 # add an empty line as spacer between other boot entries
    120 add_grub_conf ""
    121 }
    122
    123 install_bootloader()
    124 {
    125 create_device_map >> ${INSTALLER_LOG} 2>&1
    126 echo 25
    127 create_grub_conf >> ${INSTALLER_LOG} 2>&1
    128 echo 50
    129 install_grub >> ${INSTALLER_LOG} 2>&1
    130 echo 100
    131 }

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