我刚刚在计算机上重新安装了 GRUB，但它没有检测到我的 kubuntu 分区 ( /dev/sda1)。GRUB 菜单中只显示 memtest+ 条目。我的 grub 菜单版本是 1.99~rc1-13ubuntu3。请帮帮我！！
这是我使用 boot_info_script.sh 的输出：
Boot Info Script 0.60 from 17 May 2011
============================== 启动信息摘要： =================================
=> Grub2 (v1.99) 安装在 /dev/sda 的 MBR 中，并在同一硬盘驱动器的第 1 扇区中查找 core.img。core.img 位于此位置并在此驱动器上查找 ??。=> /dev/sdb 的 MBR 中未安装任何引导加载程序。
sda1：__________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 11.04
Boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sda2：__________________________________________
File system: Extended Partition
Boot sector type: Unknown
Boot sector info:
sda5：__________________________________________
File system: swap
Boot sector type: -
Boot sector info:
数据库1：__________________________________________
File system: vfat
Boot sector type: FAT32
Boot sector info: According to the info in the boot sector, sdb1 starts
at sector 0. But according to the info from fdisk,
sdb1 starts at sector 63.
Operating System:
Boot files:
============================= 驱动器/分区信息： ==============================
驱动器：sda_______________________________________
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 484,278,271 484,276,224 83 Linux
/dev/sda2 484,280,318 488,396,799 4,116,482 5 Extended
/dev/sda5 484,280,320 488,396,799 4,116,480 82 Linux swap / Solaris
驱动器： sdb_______________________________________
Disk /dev/sdb: 4004 MB, 4004511744 bytes
255 heads, 63 sectors/track, 486 cylinders, total 7821312 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 63 7,807,589 7,807,527 b W95 FAT32
“blkid”输出：____________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 b8a57e51-613f-45c6-a7f0-5dd74e62e2fd ext4
/dev/sda5 09d61304-c671-4481-b7c4-acb24b6c8c7d swap
/dev/sdb1 8220-55E0 vfat
=================================== 挂载点： ===================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdb1 /media/8220-55E0 vfat (rw,nosuid,nodev,uhelper=udisks,uid=999,gid=999,shortname=mixed,dmask=0077,utf8=1,showexec)
/dev/sr0 /cdrom iso9660 (ro,noatime)
============================= sda1/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/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root b8a57e51-613f-45c6-a7f0-5dd74e62e2fd
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root b8a57e51-613f-45c6-a7f0-5dd74e62e2fd
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
--------------------------------------------------------------------------------
================================ sda1/etc/fstab： ==================================
--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda1 during installation
UUID=b8a57e51-613f-45c6-a7f0-5dd74e62e2fd / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=09d61304-c671-4481-b7c4-acb24b6c8c7d none swap sw 0 0
--------------------------------------------------------------------------------
=================== sda1：Grub 加载的文件位置： ====================
GiB - GB File Fragment(s)
116.134162903 = 124.698107904 boot/grub/core.img 1
116.522464752 = 125.115043840 boot/grub/grub.cfg 1
207.804080963 = 223.127932928 boot/initrd.img-2.6.38-10-generic 2
1.727539062 = 1.854930944 boot/initrd.img-2.6.38-8-generic 3
205.950504303 = 221.137670144 boot/vmlinuz-2.6.38-10-generic 1
116.133281708 = 124.697161728 boot/vmlinuz-2.6.38-8-generic 1
207.804080963 = 223.127932928 initrd.img 2
1.727539062 = 1.854930944 initrd.img.old 3
205.950504303 = 221.137670144 vmlinuz 1
116.133281708 = 124.697161728 vmlinuz.old 1
========================= 未知的 MBR/引导扇区/等： ==========================
sda2 上存在未知的 BootLoader
00000000 2f 73 63 73 69 2f 6c 69 62 69 73 63 73 69 2e 6b |/scsi/libiscsi.k|
00000010 6f 0a 2f 6c 69 62 2f 6d 6f 64 75 6c 65 73 2f 32 |o./lib/modules/2|
00000020 2e 36 2e 33 32 2d 32 31 2d 67 65 6e 65 72 69 63 |.6.32-21-generic|
00000030 2f 6b 65 72 6e 65 6c 2f 64 72 69 76 65 72 73 2f |/kernel/drivers/|
00000040 73 63 73 69 2f 6c 69 62 69 73 63 73 69 5f 74 63 |scsi/libiscsi_tc|
00000050 70 2e 6b 6f 0a 2f 6c 69 62 2f 6d 6f 64 75 6c 65 |p.ko./lib/module|
00000060 73 2f 32 2e 36 2e 33 32 2d 32 31 2d 67 65 6e 65 |s/2.6.32-21-gene|
00000070 72 69 63 2f 6b 65 72 6e 65 6c 2f 64 72 69 76 65 |ric/kernel/drive|
00000080 72 73 2f 73 63 73 69 2f 6c 69 62 73 61 73 0a 2f |rs/scsi/libsas./|
00000090 6c 69 62 2f 6d 6f 64 75 6c 65 73 2f 32 2e 36 2e |lib/modules/2.6.|
000000a0 33 32 2d 32 31 2d 67 65 6e 65 72 69 63 2f 6b 65 |32-21-generic/ke|
000000b0 72 6e 65 6c 2f 64 72 69 76 65 72 73 2f 73 63 73 |rnel/drivers/scs|
000000c0 69 2f 6c 69 62 73 61 73 2f 6c 69 62 73 61 73 2e |i/libsas/libsas.|
000000d0 6b 6f 0a 2f 6c 69 62 2f 6d 6f 64 75 6c 65 73 2f |ko./lib/modules/|
000000e0 32 2e 36 2e 33 32 2d 32 31 2d 67 65 6e 65 72 69 |2.6.32-21-generi|
000000f0 63 2f 6b 65 72 6e 65 6c 2f 64 72 69 76 65 72 73 |c/kernel/drivers|
00000100 2f 73 63 73 69 2f 6c 69 62 73 72 70 2e 6b 6f 0a |/scsi/libsrp.ko.|
00000110 2f 6c 69 62 2f 6d 6f 64 75 6c 65 73 2f 32 2e 36 |/lib/modules/2.6|
00000120 2e 33 32 2d 32 31 2d 67 65 6e 65 72 69 63 2f 6b |.32-21-generic/k|
00000130 65 72 6e 65 6c 2f 64 72 69 76 65 72 73 2f 73 63 |ernel/drivers/sc|
00000140 73 69 2f 6c 70 66 63 0a 2f 6c 69 62 2f 6d 6f 64 |si/lpfc./lib/mod|
00000150 75 6c 65 73 2f 32 2e 36 2e 33 32 2d 32 31 2d 67 |ules/2.6.32-21-g|
00000160 65 6e 65 72 69 63 2f 6b 65 72 6e 65 6c 2f 64 72 |eneric/kernel/dr|
00000170 69 76 65 72 73 2f 73 63 73 69 2f 6c 70 66 63 2f |ivers/scsi/lpfc/|
00000180 6c 70 66 63 2e 6b 6f 0a 2f 6c 69 62 2f 6d 6f 64 |lpfc.ko./lib/mod|
00000190 75 6c 65 73 2f 32 2e 36 2e 33 32 2d 32 31 2d 67 |ules/2.6.32-21-g|
000001a0 65 6e 65 72 69 63 2f 6b 65 72 6e 65 6c 2f 64 72 |eneric/kernel/dr|
000001b0 69 76 65 72 73 2f 73 63 73 69 2f 6d 65 67 00 fe |ivers/scsi/meg..|
000001c0 ff ff 82 fe ff ff 02 00 00 00 00 d0 3e 00 00 00 |............>...|
000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200
================================ StdErr 消息： =================================
为了能够看到 Grub2 (v1.99) 查找哪个目录，请安装“unlzma”。