我在 Azure 上有一个运行 Ubuntu 20.04 的虚拟机，分区如下所示：
# df -h
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 796M 1.5M 794M 1% /run
/dev/mapper/osencrypt 29G 12G 18G 40% /
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sda2 248M 160M 76M 68% /boot
/dev/sdc1 42M 1.5K 42M 1% /mnt/azure_bek_disk
tmpfs 200M 14M 187M 7% /var/lib/sss/db
/dev/loop0 62M 62M 0 100% /snap/core20/1169
/dev/loop1 68M 68M 0 100% /snap/lxd/21545
/dev/loop2 33M 33M 0 100% /snap/snapd/13640
/dev/sda15 105M 5.2M 100M 5% /boot/efi
/dev/mapper/resourceencrypt 16G 45M 15G 1% /mnt/resource
tmpfs 796M 0 796M 0% /run/user/1962704655
我想将操作系统磁盘从29G扩展到300G。在Azure门户上我已经完成了更改：
这在虚拟机上已经可见：
# lsblk -o NAME,HCTL,SIZE,MOUNTPOINT
NAME HCTL SIZE MOUNTPOINT
loop0 61.9M /snap/core20/1169
loop1 67.3M /snap/lxd/21545
loop2 32.5M /snap/snapd/13640
sda 0:0:0:0 300G
├─sda1 29.7G
│ └─osencrypt 29.7G /
├─sda2 256M /boot
├─sda14 4M
└─sda15 106M /boot/efi
sdb 0:0:0:1 16G
└─sdb1 16G
└─resourceencrypt 16G /mnt/resource
sdc 0:0:0:3 48M
└─sdc1 46M /mnt/azure_bek_disk
sdd 1:0:0:0 1T
parted我对使用命令调整分区大小有点困惑：
# sudo parted /dev/mapper/osencrypt resizepart 1 300G
Warning: Partition /dev/mapper/osencrypt is being used. Are you sure you want to continue?
Yes/No? yes
End? [31.8GB]?
Information: You may need to update /etc/fstab.
也resize2fs没有帮助：
# sudo resize2fs /dev/mapper/osencrypt 300G
resize2fs 1.45.5 (07-Jan-2020)
The containing partition (or device) is only 7770619 (4k) blocks.
You requested a new size of 78643200 blocks.