Use:
typedef MyData struct {
Data string `json:"data"`
FieldName *int64 `json:"-"`
}
Adding the `json:"-"` will make the Unmarshal command disregard this field
Points regarding computing that I always forget - so I write them here to find them easily and maybe other could benefit too.
Use:
typedef MyData struct {
Data string `json:"data"`
FieldName *int64 `json:"-"`
}
Adding the `json:"-"` will make the Unmarshal command disregard this field
You have to do the following steps:
Run defrag in the guest (Windows only)
Nullify free space:
With a Linux Guest run this:
dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k ; rm /var/tmp/bigemptyfile
Or:
telinit 1
mount -o remount,ro /dev/sda1
zerofree -v /dev/sda1
With a Windows Guest, download SDelete from Sysinternals and run this:
sdelete.exe c: -z
(replace C: with the drive letter of the VDI)
Shutdown the guest VM
Now run VBoxManage's modifymedium command with the --compact option:
With a Linux Host run this:
vboxmanage modifymedium --compact /path/to/thedisk.vdi
With a Windows Host run this:
VBoxManage.exe modifymedium --compact c:\path\to\thedisk.vdi
With a Mac Host run this:
VBoxManage modifymedium --compact /path/to/thedisk.vdi
This reduces the vdi size.
https://superuser.com/questions/529149/how-to-compact-virtualboxs-vdi-file-size