给虚机添加新的磁盘分区

简单记录一下给虚拟机添加新的磁盘分区的步骤。

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首先关闭虚拟机，然后选择设置，添加硬盘，创建一个虚拟磁盘，选择SCSI类型，设置磁盘的容量，并指定保存的操作系统文件名称。

下面就可以启动虚拟机。

登陆到虚拟机，切换到root用户：

[root@yangtk ~]# df -kITPUB个人空间L7x|Ls8uM`xW4S
Filesystem 1K-blocks Used Available Use% Mounted on
(Dyc)\xI^m0/dev/mapper/VolGroup00-LogVol00
mj5[A:wM]E0 3142384 2963560 16624 100% /ITPUB个人空间W,C0z8YdM+k3bn&X
/dev/sda1 101086 10876 84991 12% /boot
;o"?$B o?9xL\
A5N0/dev/mapper/VolGroup00-LogVol03ITPUB个人空间_(Nu4Za QV
8919192 6665924 1792880 79% /data
d?2n]'I)Q1^8O#W0tmpfs 257800 0 257800 0% /dev/shm
X K3e
FW|0/dev/mapper/VolGroup00-LogVol02ITPUB个人空间
^R"KU;j+^w(Y
1015704 34452 928824 4% /tmp
i$jh,eqq4b0[root@yangtk disk]# cd /dev/disk/by-pathITPUB个人空间 @/H#Bx!N+D
[root@yangtk by-path]# ls -lITPUB个人空间m)@Oj1ETm&j%qH
total 0ITPUB个人空间9dw'Af%^?~[/o
lrwxrwxrwx 1 root root 9 Oct 21 06:00 pci-0000:00:07.1-ide-0:0 -> ../../hdc
;u1O4y7~B6|0lrwxrwxrwx 1 root root 9 Oct 21 06:00 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sdaITPUB个人空间rvX;^6_F9|
lrwxrwxrwx 1 root root 10 Oct 21 06:00 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
_ Q+Gs4pAd-H A.g0lrwxrwxrwx 1 root root 10 Oct 21 06:00 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
Wy"a Ijb0lrwxrwxrwx 1 root root 9 Oct 21 06:00 pci-0000:00:10.0-scsi-0:0:1:0 -> ../../sdbITPUB个人空间LR2aj$`JjW7v1cB
[root@yangtk by-path]# fdisk /dev/sdb -l

Disk /dev/sdb: 2147 MB, 2147483648 bytes
h V3@c.jV Po@0255 heads, 63 sectors/track, 261 cylindersITPUB个人空间'L9TJ+A ^ Z/\+P
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table
9K-c;ysAd}$I0[root@yangtk by-path]# fdisk /dev/sdbITPUB个人空间"T#\cMH ^
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel. Changes will remain in memory only,ITPUB个人空间+ReD~p7yV9N
until you decide to write them. After that, of course, the previousITPUB个人空间;x}]4WW!h
content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n
9q
y;k2{8jfi|f0Command action
)O&_"iW^?r*KV0 e extendedITPUB个人空间(oY
Y7T K+j6A
p primary partition (1-4)ITPUB个人空间eff(Q4EvN
pITPUB个人空间"a {%Ms#IGu6{
Partition number (1-4): 1ITPUB个人空间;Al5b5f^jE0Oj
First cylinder (1-261, default 1): ITPUB个人空间,sBSY3nV5dv'T
Using default value 1ITPUB个人空间1]'Ni7_IAx
Last cylinder or +size or +sizeM or +sizeK (1-261, default 261): ITPUB个人空间2hfW.pkqT!qr+d Z
Using default value 261

Command (m for help): t
xOa6b
Z&p1R0Selected partition 1
|Mu3pRN!SNh!y"gN0Hex code (type L to list codes): 8e
o:U p)G2Dx0Changed system type of partition 1 to 8e (Linux LVM)

Command (m for help): w
~A3? w;~y)G0The partition table has been altered!

Calling ioctl() to re-read partition table.
c7o-k
WANO0Syncing disks.ITPUB个人空间%pb0n9l
vw;h{
[root@yangtk by-path]# fdisk /dev/sdb -l

Disk /dev/sdb: 2147 MB, 2147483648 bytesITPUB个人空间)Ycc} T9w
255 heads, 63 sectors/track, 261 cylinders
D q0@Uoh(od/R0Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id SystemITPUB个人空间q:twFp:|}
/dev/sdb1 1 261 2096451 8e Linux LVM
@|:U0N0h.u0[root@yangtk by-path]# mkdir /data1
)y.fgA(_uA!T9q&h0[root@yangtk by-path]# mount -t ext3 /dev/sdb1 /data1ITPUB个人空间2Ol$Xjby
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
B$d9bO aa-C,A0 missing codepage or other errorITPUB个人空间2KlX_rsi;w
{
In some cases useful info is found in syslog - try
F5q4F
kTB1}:f;v0 dmesg | tail or so

[root@yangtk by-path]# mkfs.ext3 /dev/sdb1
P}Vn&G/@U!\.R0mke2fs 1.39 (29-May-2006)ITPUB个人空间
{p+B||3pk xC
b5Z
Filesystem label=ITPUB个人空间j H4lHH"_
OS type: Linux
irDz+r9g2NF*n0Block size=4096 (log=2)ITPUB个人空间%qq'W6}/}
Fragment size=4096 (log=2)ITPUB个人空间,h1iw P2T
262144 inodes, 524112 blocksITPUB个人空间6~eL6et1w
]k
26205 blocks (5.00%) reserved for the super user
SC6~qw bU0First data block=0ITPUB个人空间%tmL:A~"L
|
Maximum filesystem blocks=536870912
rn m1D4f {,[\V016 block groups
JN8e_/ZU'x032768 blocks per group, 32768 fragments per groupITPUB个人空间"y8`
~v#SP L d8I7\
16384 inodes per groupITPUB个人空间#X&fE;Kj[S[
Superblock backups stored on blocks: ITPUB个人空间g$FJ%v(B9T+A
32768, 98304, 163840, 229376, 294912

Writing inode tables: done ITPUB个人空间2WYPI9VX
Creating journal (8192 blocks): doneITPUB个人空间 hbv/M@{Qf
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 27 mounts or
,Cq,qvk)PK!s
x0180 days, whichever comes first. Use tune2fs -c or -i to override.ITPUB个人空间eDPT$Go)K
[root@yangtk by-path]# mount -t ext3 /dev/sdb1 /data1
t:o$j&zrCtP0[root@yangtk by-path]# df -kITPUB个人空间afada0b
Filesystem 1K-blocks Used Available Use% Mounted on
9@)|$Z2lJ0/dev/mapper/VolGroup00-LogVol00ITPUB个人空间(T8fII\ ~'P
3142384 2963564 16620 100% /
w"L H/v9du;FZ0/dev/sda1 101086 10876 84991 12% /bootITPUB个人空间p
t8g\.J'U
/dev/mapper/VolGroup00-LogVol03ITPUB个人空间r LdNwI*ae
8919192 6665924 1792880 79% /dataITPUB个人空间QY;[~0|
tmpfs 257800 0 257800 0% /dev/shm
hEZ[(@s&E-W6qn0/dev/mapper/VolGroup00-LogVol02
i HV,Z ~WVT0 1015704 34452 928824 4% /tmpITPUB个人空间9_K,?GJ$QC,w8k
/dev/sdb1 2063504 35880 1922804 2% /data1

登陆到系统，新添加的分区不会自动加载，需要在linux环境下去手工mount，首先检查新增的磁盘在linux中对应的设备名称。

使用fdisk为磁盘分区建立分区表，并设置为Linux LVM类型。

下面仍然不能直接mount，否则会报错：wrong fs type, bad option, bad superblock on /dev/sdb1

需要使用mkfs建立文件系统，下面就可以通过mount命令来加载这个磁盘了。

如果需要系统重启后可以自动加载，需要将其添加到/etc/fstab文件中，在文件中加入下面的内容既可。

/dev/sdb1 /data1 ext3 defaults 1 2