콘솔을 연결하고 "모드" 버튼을 누른채로 전원 연결하여 swith:  프롬프트는 나왔는데 flash_init 이라는 명령어는 없다고 나오는군요.
이미 초기화가 된건지 아니면, 펌웨어 버전이 낮아서 그런건지 잘 모르겠네요. 완전 초기화 하는 방법 좀 알려주세요.

General initialization - Version: 1.0.0
Serdes initialization - Version: 1.0.2
Board H/W SKU Id is (2)
DDR3 Training Sequence - Ver TIP-1.27.0
DDR3 Training Sequence - Switching XBAR Window to FastPath Window
DDR3 Training Sequence - Ended Successfully
DDR3 Training Sequence - Start scrubbing
DDR3 Training Sequence - End scrubbing
BootROM: Image checksum verification PASSED

Board SKU ID is (2)
USB2.0 0: Host Mode

FPU initialized to Run Fast Mode.

FPGA: 1.5

DRAM Size: 512 MB

Xmodem file system is available.

USB EHCI 1.00

MTL NAND detected Device ID = 0xDA01 

256 MiB

Using driver version 1 for media type 3

yaffs[9]: Initialization complete.

yaffs[10]: Initialization complete.

yaffs[11]: Initialization complete.

Base ethernet MAC Address: 50:f7:22:fd:b9:00

The password-recovery mechanism is enabled.

*** The system will autoboot in 5 seconds ***

Send break character to prevent autobooting.

The system has been interrupted. The following commands

will finish loading the operating system software:

    boot

switch: dir flash

unable to stat flash/: no such device

switch: dir flash:

Directory of flash:/

  516  drwx  2048      <date>               c2960l-universalk9-mz.152-5c.E

  637  drwx  2048      <date>               dc_profile_dir

  258  -rwx  676       <date>               vlan.dat

  259  -rwx  2371      <date>               config.text

  260  -rwx  5         <date>               private-config.text

  257  -rwx  2072      <date>               multiple-fs

    2  drwx  2048      <date>               lost+found

214162K bytes available (24814K bytes used)

switch: flash_init

Unknown cmd: flash_init