我的硬盘上有 Windows 7 和 Ubuntu 12.04。现在我还安装了 Ubuntu 14.04，但它没有显示在引导加载程序中，所以我只能访问 Windows 和 Ubuntu 12.04。如何添加 Ubuntu 14.04？
这是我从 bootinfoscript 中得到的 result.txt：
Boot Info Script 0.61 [1 April 2012]
============================= Boot Info Summary: ===============================
=> Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos5)/boot/grub on this drive.
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /grldr /bootmgr /Boot/BCD /grldr
sda2: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files: /Windows/System32/winload.exe
sda3: __________________________________________________________________________
File system: ext4
Boot sector type: Grub2 (v1.99)
Boot sector info: Grub2 (v1.99) is installed in the boot sector of sda3
and looks at sector 193770792 of the same hard drive
for core.img. core.img is at this location and looks
in partition 112 for .
Operating System: Ubuntu 14.04.5 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab
sda4: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 12.04.3 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sda6: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 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 * 2,048 206,847 204,800 7 NTFS / exFAT / HPFS
/dev/sda2 206,848 136,918,100 136,711,253 7 NTFS / exFAT / HPFS
/dev/sda3 176,334,848 234,436,607 58,101,760 83 Linux
/dev/sda4 136,919,038 176,334,847 39,415,810 5 Extended
/dev/sda5 136,919,040 172,161,023 35,241,984 83 Linux
/dev/sda6 172,163,072 176,334,847 4,171,776 82 Linux swap / Solaris
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/sda1 B864A6BA64A67B30 ntfs System Reserved
/dev/sda2 8896E94A96E93978 ntfs
/dev/sda3 797bf0ed-1b42-4a0d-adb3-77b612e3cae0 ext4
/dev/sda5 4561699f-00dd-4385-9d41-a7f3b35c9c8d ext4
/dev/sda6 ae23d389-a2a5-4bd4-847f-9a915efb9d5c swap
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sda1 /media/System Reserved fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
/dev/sda2 /media/8896E94A96E93978 fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
/dev/sda3 /media/797bf0ed-1b42-4a0d-adb3-77b612e3cae0 ext4 (rw,nosuid,nodev,uhelper=udisks)
/dev/sda5 / ext4 (rw,errors=remount-ro)
========================== sda1/grldr embedded menu: ===========================
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
=========================== sda3/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
答案1
我认为 os-prober 只适用于已安装的分区。因此，您首先需要将其他 Ubuntu 安装安装到某处，然后运行 update-grub。