How to Clean bad Grubfirmware off DOC?

[g_friend at etang.com]

>Since you cannot boot with the doc2000 installed, I'd recommend trying the 
>following, **very carefully**:
>  1. Turn off system
>  2. Remove DoC from board (I assume it's an ISA/PCI board with DoC socketed?)
>  3. Install *empty* DoC board
>  4. Boot into DOS
>  5. Install latest M-Sys DOS utilities (if not already done)
>  6. *** CAREFULLY *** install DoC into socket
>  7. Run DFORMAT utility to replace grub firmware
>*Disclaimer:  This procedure has worked for me, but it could do *bad things* 
>to your DoC.  Use it only as a last resort.

By saying above ,do you mean "hot plug" ?

>If your machine supports "Network" boot, you may want to try configuring GRUB 
>with the "--enable-diskonchip-biosnetboot" option.  This will allow you to 
>selectively boot from the DoC, returning to booting from a hard drive or 
>floppy when needed.
Sorry I am not familiar with GRUB .I just do something after the readme . 
So, I cannot understand what's the meanig completely .
Do you mean that I can install a grub on my harddisk with "network " option ,then install DOC ,then I can boot from harddisk with DOC in my board ? 









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