調整默認的10GB啓動驅動器谷歌雲平臺

Question

當我在Google雲端平臺上創建實例時，如何增加默認的10GB啓動驅動器？我已經讀過關於這個的不同答案，沒有什麼超清。我是這個平臺的初學者，如果有人能告訴我如何以簡單的方式做到這一點，我會非常感激。

Answer 1

的步驟很簡單：

1. 具有更大的尺寸
2. 創建一個從現有的源圖像的新的磁盤使用剛創建的磁盤創建一個新的實例（選擇現有的磁盤）
3. 後，系統啓動，使用命令「df -h」，可以看到存儲仍然是9.9GB。
4. 按照https://developers.google.com/compute/docs/disks
5. 「重新分區根永久磁盤」部分中的步驟（從步驟4-12）完成！

Answer 2

使用以下步驟在Google雲端平臺上使用CentOS增加引導大小。

 
ssh into vm instance 

[user@user-srv ~]$ df -h 
Filesystem   Size Used Avail Use% Mounted on 
/dev/sda1    9.9G 898M 8.5G 10%/
tmpfs     296M  0 296M 0% /dev/shm 
[user@user-srv ~]$ sudo fdisk /dev/sda 

The device presents a logical sector size that is smaller than 
the physical sector size. Aligning to a physical sector (or optimal 
I/O) size boundary is recommended, or performance may be impacted. 

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: 53.7 GB, 53687091200 bytes 
4 heads, 32 sectors/track, 819200 cylinders 
Units = cylinders of 128 * 512 = 65536 bytes 
Sector size (logical/physical): 512 bytes/4096 bytes 
I/O size (minimum/optimal): 4096 bytes/4096 bytes 
Disk identifier: 0x0004a990 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1    17  163825 10483712+ 83 Linux 

Command (m for help): c 
DOS Compatibility flag is not set 

Command (m for help): u 
Changing display/entry units to sectors 

Command (m for help): p 

Disk /dev/sda: 53.7 GB, 53687091200 bytes 
4 heads, 32 sectors/track, 819200 cylinders, total 104857600 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: 0x0004a990 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1   2048 20969472 10483712+ 83 Linux 

Command (m for help): p 

Disk /dev/sda: 53.7 GB, 53687091200 bytes 
4 heads, 32 sectors/track, 819200 cylinders, total 104857600 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: 0x0004a990 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1   2048 20969472 10483712+ 83 Linux 

Command (m for help): n 
Command action 
    e extended 
    p primary partition (1-4) 
p 
Partition number (1-4): 1 
Partition 1 is already defined. Delete it before re-adding it. 

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 sector (2048-104857599, default 2048): 
Using default value 2048 
Last sector, +sectors or +size{K,M,G} (2048-104857599, default 104857599): 
Using default value 104857599 

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

Calling ioctl() to re-read partition table. 

WARNING: Re-reading the partition table failed with error 16: Device or resource busy. 
The kernel still uses the old table. The new table will be used at 
the next reboot or after you run partprobe(8) or kpartx(8) 
Syncing disks. 
[user@user-srv ~]$ df -h 
Filesystem   Size Used Avail Use% Mounted on 
/dev/sda1    9.9G 898M 8.5G 10%/
tmpfs     296M  0 296M 0% /dev/shm 
[user@user-srv ~]$ sudo reboot 

Broadcast message from user@user-srv 
(/dev/pts/0) at 3:48 ... 

The system is going down for reboot NOW! 
[user@user-srv ~]$ Connection to 23.251.144.204 closed by remote host. 
Connection to 23.251.144.204 closed. 

Robetus-Mac:~ tomassiro$ gcutil listinstances --project="project-name" 
+-------+---------------+---------+----------------+----------------+ 
| name | zone   | status | network-ip  | external-ip | 
+-------+---------------+---------+----------------+----------------+ 
| srv-1 | us-central1-a | RUNNING | 10.230.224.112 | 107.168.216.20 | 
+-------+---------------+---------+----------------+----------------+ 

ssh into vm instance 

[user@user-srv ~]$ df -h 
Filesystem   Size Used Avail Use% Mounted on 
/dev/sda1    9.9G 898M 8.5G 10%/
tmpfs     296M  0 296M 0% /dev/shm 

[user@user-srv ~]$ sudo resize2fs /dev/sda1 
resize2fs 1.41.12 (17-May-2010) 
Filesystem at /dev/sda1 is mounted on /; on-line resizing required 
old desc_blocks = 1, new_desc_blocks = 4 
Performing an on-line resize of /dev/sda1 to 13106944 (4k) blocks. 
The filesystem on /dev/sda1 is now 13106944 blocks long. 

[user@user-srv ~]$ df -h 
Filesystem   Size Used Avail Use% Mounted on 
/dev/sda1    50G 908M 46G 2%/
tmpfs     296M  0 296M 0% /dev/shm 
[user@user-srv ~]$ exit 
logout 
Connection to 23.251.144.204 closed. 

Answer 3

不是編輯分區直接和不需要維護自己的圖像，更安全的方法，是dracut的growroot模塊&雲初始化。

我在Google Compute上使用了CentOS 6 & 7，Azure使用AWS &。

## you'll need to be root or use sudo 
yum -y install epel-release 
yum -y install cloud-init cloud-initramfs-tools dracut-modules-growroot cloud-utils-growpart 
rpm -qa kernel | sed -e 's/^kernel-//' | xargs -I {} dracut -f /boot/initramfs-{}.img {} 
# reboot for the resize to take affect 

該分區將在下次啓動時自動調整大小。

注：

• 這是內置的Ubuntu，這就是爲什麼你看不到問題在那裏。
• 分區大小問題與RedHat & CentOS一起出現，大多數預構建映像不僅僅是Google Cloud。這種方法應該可以在任