记一次阿里云 ECS 服务器数据盘无损扩容

原数据盘 20G 扩容至 25G,购买后通过 SSH 登陆实例进行操作;

操作步骤完全参考阿里云帮助即可:https://help.aliyun.com/document_detail/25452.html

[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1        40G   15G   23G  39% /
tmpfs           939M     0  939M   0% /dev/shm
/dev/vdb1        20G   13G  6.7G  65% /home/wwwroot
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# umount /dev/vdb1
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1        40G   15G   23G  39% /
tmpfs           939M     0  939M   0% /dev/shm
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# fdisk -l

Disk /dev/vda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00020f03

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *           1        5222    41940992   83  Linux

Disk /dev/vdb: 26.8 GB, 26843545600 bytes
16 heads, 63 sectors/track, 52012 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x78d92770

   Device Boot      Start         End      Blocks   Id  System
/dev/vdb1               1       41610    20971408+  83  Linux
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# fdisk /dev/vdb

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): d
Selected partition 1

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-52012, default 1): 
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-52012, default 52012): 
Using default value 52012

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

Calling ioctl() to re-read partition table.
Syncing disks.
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# e2fsck -f /dev/vdb1
e2fsck 1.41.12 (17-May-2010)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/vdb1: 95741/1310720 files (0.8% non-contiguous), 3228283/5242852 blocks
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# resize2fs /dev/vdb1
resize2fs 1.41.12 (17-May-2010)
Resizing the filesystem on /dev/vdb1 to 6553504 (4k) blocks.
The filesystem on /dev/vdb1 is now 6553504 blocks long.

[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# mount /dev/vdb1 /home/wwwroot
[root@iZ2ze4knyxhkgpnbo7brn7Z ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1        40G   15G   23G  39% /
tmpfs           939M     0  939M   0% /dev/shm
/dev/vdb1        25G   13G   12G  52% /home/wwwroot

值得注意的点是 fdisk 命令操作时, 是使用 fdisk /dev/vdb 而不是 fdisk /dev/vdb1,这里没仔细看坑了我好长时间,一直扩容失败;

扩容成功。

解决 Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ 错误

安装完 MySQL ,进行运行测试,报 Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ 错误,

[root@localhost mysql]# /usr/local/mysql/bin/mysqld_safe
131206 22:42:51 mysqld_safe Logging to ‘/var/log/mysqld.log’.
131206 22:42:51 mysqld_safe Starting mysqld daemon with databases from /data/mysql/data
131206 22:42:57 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
[root@localhost mysql]# /usr/local/mysql/bin/mysql
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

检查一下 MySQL 的运行状态

[root@localhost mysql]# ps -ef | grep mysql
root     32092  2108  0 22:43 pts/0    00:00:00 grep mysql

查看 /tmp 文件夹的确没有 mysql.sock 文件,

通过 find 命令查找

[root@localhost /]# find / -name mysql.sock
/var/lib/mysql/mysql.sock

原来安装到 /var/lib/mysql/mysql.sock 这个位置啦,我们需要修改 my.cnf 文件

[root@localhost /]# vi /usr/local/mysql/my.cnf

[client]
character-set-server = utf8
port    = 3306
socket  = /var/lib/mysql/mysql.sock
……

保存之后即出,重新启动 MySQL 。

via: http://www.chenruixuan.com/archives/517.html

解决: Homestead 环境下, yarn install –no-bin-links, NPM run dev, 命令报错

执行以下命令:

  • 1 $ rm -rf node_modules
  • 2 $ yarn config set registry http://registry.cnpmjs.org
  • 3 $ yarn install --no-bin-links
  • 4 接下来打开 pakage.json 修改, 去掉 package.json 中的四处 cross-env
"scripts": {
    "dev": "npm run development",
    "development": "NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch": "NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch-poll": "npm run watch -- --watch-poll",
    "hot": "NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
    "prod": "npm run production",
    "production": "NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
  • 5.执行 $ npm run watch-poll 或者 npm run dev
  • 6.完成

via: https://laravel-china.org/topics/3570/yarn-install-error-learning-laravel-entry-manual-encounter-problems-to-help

error Received malformed response from registry for undefined. The registry may be down.

Laravel 学习中

https://laravel-china.org/courses/laravel-essential-training-5.5/569/style-beautification

执行下列代码时报错

$ yarn install --no-bin-links
$ yarn add cross-env

error Received malformed response from registry for undefined. The registry may be down. Continue reading error Received malformed response from registry for undefined. The registry may be down.