VirtualBox has expanded the capacity of virtual hard disk (without modifying the original data)

virtualbox by ubuntu Add virtual hard disk

The general steps are as follows ：

• stay virtualbox Register a virtual hard disk
• Use fdisk Partition the hard disk
• mkfs.ext4 Format the hard disk
• modify uuid: VBoxManage internalcommands sethduuid “Z:\extdisk1.vdi”
• modify /etc/fstab

# sudo blkid /dev/sdb1
UUID=xxx  /mnt/extdisk1   ext4   defaults,rw   0  2 

For details, please refer to ：https://blog.csdn.net/V__KING__/article/details/95513244

Expand the existing hard disk

requirement

• Ensure that the original data in the virtual hard disk remains unchanged

Over time , There is more and more data in the hard disk of the virtual machine , Virtual hard disk space cannot meet the demand , Have to expand capacity ./dev/sdb For the virtual hard disk that needs to be expanded .

sudo fdisk -l
sudo umount /dev/sdb
sudo e2fsck -f /dev/sdb
sudo resize2fs /dev/sdb
sudo umount /mnt/extdisk3
#  here /mnt/extdisk3 The data in is still