Fetch flash memory content into PC via uBoot [closed]

Question

I am having customize board (PowerPC) running operating system with VxWorks kernal with uBoot. some how my file system(tffs) has corrupted and my VxWorks kernal is not able to boot up. it hangs in boot process. but i still can have connection to uBoot shell. if i format the flash memory and program the operating system again, it will start working, but i somehow need to recover the filesystem and hence i need to copy the flash content to my PC, is there any tool available for PC can do that? i mean connect to uBoot and fetch the flash content entirely? i believe JTAG will be able to do that, but i dont have that. so i need something else to do that for me. thanks in advance!

Answer 1

U-Boot often support tftp transfers (provided you have Ethernet) or even XMODEM/kermit transfers over the serial port. Without knowing your exact u-boot, I will point out that there is a built in help functionality which will document all of the commands available.