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标题: 求教，挂载硬盘到/home目录作为数据盘，这样算是成功了么？ [打印本页]

作者: veryad 时间: 2014-6-23 23:15
标题: 求教，挂载硬盘到/home目录作为数据盘，这样算是成功了么？
[root@MyCloudServer ~]# dh -ls
-bash: dh: command not found
[root@MyCloudServer ~]# df -l
Filesystem          1K-blocks    Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                     9743696 1241148 7999588  14% /
/dev/xvda1             101086    36764    59103  39% /boot
tmpfs                524380       0 524380 0% /dev/shm
[root@MyCloudServer ~]# df -lh
Filesystem          Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                  9.3G  1.2G  7.7G  14% /
/dev/xvda1          99M 36M 58M  39% /boot
tmpfs                513M    0  513M 0% /dev/shm
[root@MyCloudServer ~]# sdisk -l
-bash: sdisk: command not found
[root@MyCloudServer ~]# fdisk -l

Disk /dev/xvdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/xvdb doesn't contain a valid partition table

Disk /dev/xvda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot    Start       End    Blocks Id  System
/dev/xvda1 *          1       13    104391 83  Linux
/dev/xvda2             14       1044    8281507+  8e  Linux LVM
/dev/xvda3          1045       1305    2096482+  8e  Linux LVM
[root@MyCloudServer ~]#
[root@MyCloudServer ~]# fdisk -lh
fdisk: invalid option -- h

Usage: fdisk [-b SSZ] [-u] DISK    Change partition table
   fdisk -l [-b SSZ] [-u] DISK  List partition table(s)
   fdisk -s PARTITION          Give partition size(s) in blocks
   fdisk -v                   Give fdisk version
Here DISK is something like /dev/hdb or /dev/sda
and PARTITION is something like /dev/hda7
-u: give Start and End in sector (instead of cylinder) units
-b 2048: (for certain MO disks) use 2048-byte sectors
[root@MyCloudServer ~]# fdisk -l

Disk /dev/xvdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/xvdb doesn't contain a valid partition table

Disk /dev/xvda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot    Start       End    Blocks Id  System
/dev/xvda1 *          1       13    104391 83  Linux
/dev/xvda2             14       1044    8281507+  8e  Linux LVM
/dev/xvda3          1045       1305    2096482+  8e  Linux LVM
[root@MyCloudServer ~]# cd /home
[root@MyCloudServer home]# dir
[root@MyCloudServer home]#
[root@MyCloudServer home]# fdisk -l

Disk /dev/xvdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/xvdb doesn't contain a valid partition table

Disk /dev/xvda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot    Start       End    Blocks Id  System
/dev/xvda1 *          1       13    104391 83  Linux
/dev/xvda2             14       1044    8281507+  8e  Linux LVM
/dev/xvda3          1045       1305    2096482+  8e  Linux LVM
[root@MyCloudServer home]# df -l
Filesystem          1K-blocks    Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                     9743696 1241148 7999588  14% /
/dev/xvda1             101086    36764    59103  39% /boot
tmpfs                524380       0 524380 0% /dev/shm
[root@MyCloudServer home]# df -lh
Filesystem          Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                  9.3G  1.2G  7.7G  14% /
/dev/xvda1          99M 36M 58M  39% /boot
tmpfs                513M    0  513M 0% /dev/shm
[root@MyCloudServer home]# fdisk -l

Disk /dev/xvdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/xvdb doesn't contain a valid partition table

Disk /dev/xvda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot    Start       End    Blocks Id  System
/dev/xvda1 *          1       13    104391 83  Linux
/dev/xvda2             14       1044    8281507+  8e  Linux LVM
/dev/xvda3          1045       1305    2096482+  8e  Linux LVM
[root@MyCloudServer home]# fdisk /dev/xvdb
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,
until you decide to write them. After that, of course, the previous
content won't be recoverable.

The number of cylinders for this disk is set to 2610.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-2610, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-2610, default 2610):
Using default value 2610

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@MyCloudServer home]# fdisk -l

Disk /dev/xvdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot    Start       End    Blocks Id  System
/dev/xvdb1             1       2610 20964793+  83  Linux

Disk /dev/xvda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot    Start       End    Blocks Id  System
/dev/xvda1 *          1       13    104391 83  Linux
/dev/xvda2             14       1044    8281507+  8e  Linux LVM
/dev/xvda3          1045       1305    2096482+  8e  Linux LVM
[root@MyCloudServer home]# mkfs.ext3 /dev/xvdb1
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
2621440 inodes, 5241198 blocks
262059 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
160 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
      32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
      4096000

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 38 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@MyCloudServer home]# cd ~
[root@MyCloudServer ~]# dir
gzidc
[root@MyCloudServer ~]# dir home
dir: home: No such file or directory
[root@MyCloudServer ~]# cd /home
[root@MyCloudServer home]# dir
[root@MyCloudServer home]# cd ~
[root@MyCloudServer ~]# mount /dev/xvdb1 /home/
[root@MyCloudServer ~]# df -h
Filesystem          Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                  9.3G  1.2G  7.7G  14% /
/dev/xvda1          99M 36M 58M  39% /boot
tmpfs                513M    0  513M 0% /dev/shm
/dev/xvdb1          20G  173M 19G 1% /home
[root@MyCloudServer ~]# cat /etc/fstab
/dev/VolGroup00/LogVol00 /                      ext3 defaults       1 1
LABEL=/boot          /boot                ext3 defaults       1 2
tmpfs                /dev/shm             tmpfs defaults       0 0
devpts                /dev/pts             devpts  gid=5,mode=620  0 0
sysfs                /sys                   sysfs defaults       0 0
proc                   /proc                proc defaults       0 0
/dev/VolGroup00/LogVol01 swap                   swap defaults       0 0
[root@MyCloudServer ~]# vi /etc/fstab
[root@MyCloudServer ~]# cat /etc/fstab
/dev/VolGroup00/LogVol00 /                      ext3 defaults       1 1
LABEL=/boot          /boot                ext3 defaults       1 2
/dev/xvdb1             /home                ext3 defaults,noatime 0 0
tmpfs                /dev/shm             tmpfs defaults       0 0
devpts                /dev/pts             devpts  gid=5,mode=620  0 0
sysfs                /sys                   sysfs defaults       0 0
proc                   /proc                proc defaults       0 0
/dev/VolGroup00/LogVol01 swap                   swap defaults       0 0
[root@MyCloudServer ~]# passwd
Changing password for user root.
New UNIX password:
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[root@MyCloudServer ~]# reboot

Broadcast message from root (pts/7) (Mon Jun 23 23:11:30 2014):

The system is going down for reboot NOW!
[root@MyCloudServer ~]#

作者: licess 时间: 2014-6-24 08:12
过程是没错，不过之前/home下的目录和文件是要在挂载前先拷出来的，挂载后在拷回去

作者: veryad 时间: 2014-6-24 11:30
标题: 回复 2# 的帖子
我的是重装系统之后挂载的，挂载了之后才安装lnmp0.9，这样需要复制出来么？谢谢军哥！

作者: licess 时间: 2014-6-24 12:52
只要下面没数据就不用复制出来

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