[Qemu-discuss] how use qemu device_add and drive_add

[liang]

hi all,

Recently, I try to use qemu's monitor commands add/del hotplug disk.‍

add device use:

1  drive_add 0 file=hotplug.raw,if=none,id=usb_disk1

2  device_add usb-storage,drive=usb_disk1,id=usb_disk11,removable=on‍

and del device use:

3  drive_del  usb_disk1‍

4  device_del  usb_disk11‍

but when command 4 the qemu allways "assertion failed: (obj->ref == 0)‍" receive SIGABRT.‍

sorry to tell you that I used qemu-1.2.0 .

and I try to use usb_add/usb_del, but it always tell me use error.

thanks