给VMware虚拟机中的CentOS分区扩容的操作笔记(vmware虚拟机步骤)

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由于开发测试机器dev-vhost根分区规划不足只有G,需要扩容。(基于LVM)

先关闭dev-vhost，然后在vSphere Client 将根分区硬盘G 调整到G

开启虚拟机原始/ 大小 G复制代码代码如下:[root@dev-vhost ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/vg_centos6-lv_root 8.3G 4.0G 3.9G % /tmpfs M K M 1% /dev/shm/dev/sda1 M M M % /boot

查看磁盘sda已扩展到G复制代码代码如下:[root@dev-vhost ~]# fdisk /dev/sdaWARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). Command (m for help): p Disk /dev/sda: .7 GB, bytes heads, sectors/track, cylindersUnits = cylinders of * = bytesSector size (logical/physical): bytes / bytesI/O size (minimum/optimal): bytes / bytesDisk identifier: 0xef5b Device Boot Start End Blocks Id System/dev/sda1 * 1 LinuxPartition 1 does not end on cylinder boundary./dev/sda2 8e Linux LVM Disk /dev/mapper/vg_centos6-lv_root: MB, bytes heads, sectors/track, cylindersUnits = cylinders of * = bytesSector size (logical/physical): bytes / bytesI/O size (minimum/optimal): bytes / bytesDisk identifier: 0x Disk /dev/mapper/vg_centos6-lv_swap: MB, bytes heads, sectors/track, cylindersUnits = cylinders of * = bytesSector size (logical/physical): bytes / bytesI/O size (minimum/optimal): bytes / bytesDisk identifier: 0x

查看lvm状态 复制代码代码如下:[root@dev-vhost ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_centos6 lvm2 a-- 9.g 0复制代码代码如下:[root@dev-vhost ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_centos6 1 2 0 wz--n- 9.g 0复制代码代码如下:[root@dev-vhost ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lv_root vg_centos6 -wi-ao---- 8.g lv_swap vg_centos6 -wi-ao---- 1.g

分区/dev/sda3 复制代码代码如下:[root@dev-vhost ~]# fdisk /dev/sda WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). Command (m for help): p Disk /dev/sda: .7 GB, bytes heads, sectors/track, cylindersUnits = cylinders of * = bytesSector size (logical/physical): bytes / bytesI/O size (minimum/optimal): bytes / bytesDisk identifier: 0xef5b Device Boot Start End Blocks Id System/dev/sda1 * 1 LinuxPartition 1 does not end on cylinder boundary./dev/sda2 8e Linux LVM/dev/sda3 + Linux复制代码代码如下:[root@dev-vhost ~]# partprobe重启虚拟机 格式化/dev/sda3 复制代码代码如下:[root@dev-vhost ~]# mkfs.ext4 /dev/sda3lvm 扩容复制代码代码如下:[root@dev-vhost ~]# pvcreate /dev/sda3 Physical volume "/dev/sda3" successfully created 复制代码代码如下:[root@dev-vhost ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_centos6 lvm2 a-- 9.g 0 /dev/sda3 lvm2 --- .g .g 复制代码代码如下:[root@dev-vhost ~]# vgextend /dev/mapper/vg_centos6 /dev/sda3 (注意组名) Volume group "vg_centos6" successfully extended 复制代码代码如下:[root@dev-vhost ~]# lvextend -L .9G /dev/vg_centos6/lv_root /dev/sda3 Rounding size to boundary between physical extents: . GiB Size of logical volume vg_centos6/lv_root changed from 8. GiB ( extents) to . GiB ( extents). Logical volume lv_root successfully resized 复制代码代码如下:[root@dev-vhost ~]# resize2fs /dev/vg_centos6/lv_root resize2fs 1.. (-May-)Filesystem at /dev/vg_centos6/lv_root is mounted on /; on-line resizing requiredold desc_blocks = 1, new_desc_blocks = 3Performing an on-line resize of /dev/vg_centos6/lv_root to (4k) blocks.The filesystem on /dev/vg_centos6/lv_root is now blocks long. 复制代码代码如下:[root@dev-vhost ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_centos6 lvm2 a-- 9.g 0 /dev/sda3 vg_centos6 lvm2 a-- .g 8.g复制代码代码如下:[root@dev-vhost ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_centos6 2 2 0 wz--n- .g 8.g复制代码代码如下:[root@dev-vhost ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lv_root vg_centos6 -wi-ao---- .g lv_swap vg_centos6 -wi-ao---- 1.g 复制代码代码如下: [root@dev-vhost ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/vg_centos6-lv_root G 4.0G G % /tmpfs M K M 1% /dev/shm/dev/sda1 M M M % /boot

虚拟机中向CentOS添加网卡无法识别的问题解决 今天做实验的时候，需要为虚拟机添加一块新网卡，可系统怎么也识别不到，各种百度，google，各种重启都不成功我以为只要新添加一块系统就会识别

CentOS怎么更新内核? CentOS5.5更新内核到2.6..的教程 升级系统内核，提升性能1、输入用户名、密码登入系统，使用wget命令获取所需要的内核。2、下载文件到本地后，解压文件3、移动文件到相关目录，并

详解在CentOS中安装配置FTP服务器软件VSFTP的流程 安装VSFTP复制代码代码如下:yum-yinstallvsftpd创建FTP日志文件路径复制代码代码如下:touch/var/log/vsftpd.log启动配置复制代码代码如下:chkconfig--listvsftpd如果是全