前言
家里云安装了Ubuntu20，只安装了Nginx作为所有网络的入口服务器，最新在做文件上传的时候，发现文件上传到最后才出现异常，开始以为是网络问题，最后发现是Nginx所在服务器的临时缓存硬盘空间不足，网络上的各种解法都很混乱，这里针对这台机器做个记录。
修复分区表异常
这里调整大小是不会实时生效的，
1. 检查磁盘信息
fdisk -l
可以看到异常信息
GPT PMBR size mismatch (146800639 != 157286399) will be corrected by write.
The backup GPT table is not on the end of the device. This problem will be corrected by write.
Disk /dev/sda: 75 GiB, 80530636800 bytes, 157286400 sectors
Disk model: QEMU HARDDISK
2. 使用以下命令修复
apt-get update
apt-get install parted
parted -l
弹出Fix/Ignore?的提示
输入Fix后回车即可。
扩容物理卷
1. 执行扩容命令
执行
parted /dev/sda
此时会出现
parted /dev/sda
GNU Parted 3.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted)
输入
print
返回提示
parted /dev/sda
GNU Parted 3.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: QEMU QEMU HARDDISK (scsi)
Disk /dev/sda: 80.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 2097kB 1049kB bios_grub
2 2097kB 1881MB 1879MB ext4
3 1881MB 75.2GB 73.3GB
(parted)
输入扩容命令
resizepart 3 100%
quit
返回
(parted) resizepart 3 100%
(parted) quit
Information: You may need to update /etc/fstab.
2. 更新物理卷的大小
pvresize /dev/sda3
扩容硬盘
1. 扩容硬盘
输入
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv
返回
Size of logical volume ubuntu-vg/ubuntu-lv changed from <68.25 GiB (17471 extents) to <73.25 GiB (18751 extents).
Logical volume ubuntu-vg/ubuntu-lv successfully resized.
2. 更新文件系统大小
sudo resize2fs /dev/ubuntu-vg/ubuntu-lv
返回
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/ubuntu-vg/ubuntu-lv is mounted on /; on-line resizing required
old_desc_blocks = 9, new_desc_blocks = 10
The filesystem on /dev/ubuntu-vg/ubuntu-lv is now 19201024 (4k) blocks long.
3. 扩容成功
Q.E.D.