存在第二块硬盘时 GRUB 不显示

存在第二块硬盘时 GRUB 不显示

我刚刚搞定了 Windows 7 + Linux Mint 双启动,终于让它正常工作了。Grub 负责启动。只要我只连接了主硬盘,它就能正常工作。

当我连接第二个硬盘并启动笔记本电脑时,会出现介绍屏幕,然后,没有 grub,只有空白屏幕(不知为何,笔记本电脑的风扇开始疯狂转动)。没有其他内容。当我第一次启动 PC、启动操作系统,然后才连接第二个硬盘时,它会被顺利识别。

我尝试在两个驱动器都连接的情况下运行启动修复,但问题仍然存在。这可能是什么原因造成的?

两个驱动器都是 SATA。

内容/boot/grub/grub.cfg

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
set default="0"

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  f6737ea4-0fee-4215-81d7-917a4fe2f082
else
  search --no-floppy --fs-uuid --set=root f6737ea4-0fee-4215-81d7-917a4fe2f082
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
  set timeout=10
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
    set gfxpayload="$1"
    if [ "$1" = "keep" ]; then
        set vt_handoff=vt.handoff=7
    else
        set vt_handoff=
    fi
}
if [ ${recordfail} != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "$linux_gfx_mode" != "text" ]; then load_video; fi
menuentry 'Linux Mint 16 Cinnamon 64-bit, 3.11.0-18-generic (/dev/sda5)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  f6737ea4-0fee-4215-81d7-917a4fe2f082
    else
      search --no-floppy --fs-uuid --set=root f6737ea4-0fee-4215-81d7-917a4fe2f082
    fi
    linux   /boot/vmlinuz-3.11.0-18-generic root=UUID=f6737ea4-0fee-4215-81d7-917a4fe2f082 ro   quiet splash $vt_handoff
    initrd  /boot/initrd.img-3.11.0-18-generic
}
menuentry 'Linux Mint 16 Cinnamon 64-bit, 3.11.0-18-generic (/dev/sda5) -- recovery mode' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  f6737ea4-0fee-4215-81d7-917a4fe2f082
    else
      search --no-floppy --fs-uuid --set=root f6737ea4-0fee-4215-81d7-917a4fe2f082
    fi
    echo    'Loading Linux 3.11.0-18-generic ...'
    linux   /boot/vmlinuz-3.11.0-18-generic root=UUID=f6737ea4-0fee-4215-81d7-917a4fe2f082 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-3.11.0-18-generic
}
submenu "Previous Linux versions" {
menuentry 'Linux Mint 16 Cinnamon 64-bit, 3.11.0-12-generic (/dev/sda5)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  f6737ea4-0fee-4215-81d7-917a4fe2f082
    else
      search --no-floppy --fs-uuid --set=root f6737ea4-0fee-4215-81d7-917a4fe2f082
    fi
    linux   /boot/vmlinuz-3.11.0-12-generic root=UUID=f6737ea4-0fee-4215-81d7-917a4fe2f082 ro   quiet splash $vt_handoff
    initrd  /boot/initrd.img-3.11.0-12-generic
}
menuentry 'Linux Mint 16 Cinnamon 64-bit, 3.11.0-12-generic (/dev/sda5) -- recovery mode' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  f6737ea4-0fee-4215-81d7-917a4fe2f082
    else
      search --no-floppy --fs-uuid --set=root f6737ea4-0fee-4215-81d7-917a4fe2f082
    fi
    echo    'Loading Linux 3.11.0-12-generic ...'
    linux   /boot/vmlinuz-3.11.0-12-generic root=UUID=f6737ea4-0fee-4215-81d7-917a4fe2f082 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-3.11.0-12-generic
}
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-1AD8136CD8134603' {
    insmod part_msdos
    insmod ntfs
    set root='hd0,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  1AD8136CD8134603
    else
      search --no-floppy --fs-uuid --set=root 1AD8136CD8134603
    fi
    chainloader +1
}
menuentry 'Windows 7 (loader) (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-chain-E07A20FD7A20D258' {
    insmod part_msdos
    insmod ntfs
    set root='hd0,msdos2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  E07A20FD7A20D258
    else
      search --no-floppy --fs-uuid --set=root E07A20FD7A20D258
    fi
    chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

编辑2 - 我尝试了另一个辅助硬盘。我格式化了该硬盘,但它上面没有任何分区。只有未分配的空间。但电脑仍然无法启动。

我愿意接受任何建议,我愿意格式化/擦除任何东西以使其正常工作。

另外,在安装时,Linux Mint 无法识别现有的 Windows 安装,因此我必须手动对驱动器进行分区,然后运行启动修复才能使其正常工作。

答案1

如果第二个硬盘上的 MBR 的引导区域中有引导加载程序数据(即使 BIOS 中的引导顺序设置正确),就会发生这种情况。

如果您现在或将来不需要从第二个驱动器启动,则可以使用以下命令安全地擦除前 446 个字节:

dd if=/dev/zero of=/dev/{第二个驱动器} bs=446 count=1

您需要将上面的 {second drive} 替换为 /dev 中正确的对应条目,例如 /dev/sdb

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