dub*_*bis 32
我使用 fdisk。在应用此之前,我建议使用 live CD 或 USB 并备份您的数据。
首先检查是否存在任何可引导分区,例如在我的系统中,“/dev/sda1”是可引导分区:
fdisk -l /dev/sda
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00003256
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 959991807 479994880 83 Linux
/dev/sda2 959993854 976766975 8386561 5 Extended
/dev/sda5 959993856 976766975 8386560 82 Linux swap / Solaris
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如果没有任何引导分区,请使用 root 登录执行以下操作:
fdisk /dev/sda
Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): a
Partition number (1-5):
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如果要使分区 1 可引导,则必须键入 1,如果要使第二个分区可引导,则必须键入 2,等等...
并像这样使用“w”进行修改
Command (m for help): w
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用于修改磁盘表并使所需的分区可启动。
希望有所帮助
rob*_*ert 21
使用该print命令可以获取分区号(第一列)。让我们说它是 1. 使其可启动:
(parted) set 1 boot on
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