![检查 /boot 是否为独立分区](https://linux22.com/image/843131/%E6%A3%80%E6%9F%A5%20%2Fboot%20%E6%98%AF%E5%90%A6%E4%B8%BA%E7%8B%AC%E7%AB%8B%E5%88%86%E5%8C%BA.png)
我不明白,我如何拥有或不拥有单独的 /boot 分区?
alex@me:~$ sudo fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x000a1bc4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1506224127 753111040 83 Linux
/dev/sda2 1946028030 1953523711 3747841 5 Extended
Partition 2 does not start on physical sector boundary.
/dev/sda3 1506224128 1946025983 219900928 7 HPFS/NTFS/exFAT
/dev/sda5 1946028032 1953523711 3747840 82 Linux swap / Solaris
Partition table entries are not in disk order
alex@me:~$ sudo df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 707G 273G 399G 41% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 1.8G 12K 1.8G 1% /dev
tmpfs 353M 908K 352M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 1.8G 760K 1.8G 1% /run/shm
none 100M 28K 100M 1% /run/user
答案1
如果/boot
是单独的分区,则会在df -h
输出下列出。如果/boot
出现在Mounted on
列下,则说明它是一个单独的分区。如果没有,则说明它不是。
答案2
除了查看 df -h 的输出之外,您还可以查看 /etc/fstab 的内容
例如这是我的:
# /etc/fstab: static file system information.
#
# Use 'blkid' 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>
/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sdb1 during installation
UUID=3aa66d3b-c382-40be-9e8e-a3e9fa59c55c /boot ext2 defaults 0 2
/dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0
正如你所见,倒数第二行是我的 /boot 分区