Nand erase

From Openmoko

(Difference between revisions)
Jump to: navigation, search
(added nand erase warning)
m (-Documentation, -Technical, -Software (non-openmoko), +Flash)
 
(5 intermediate revisions by 5 users not shown)
Line 9: Line 9:
 
After connecting, you should get a prompt where you can tell u-boot to clean certain parts of the NAND memory.
 
After connecting, you should get a prompt where you can tell u-boot to clean certain parts of the NAND memory.
  
{{warning|Before you hit enter on one of the following commands, make sure that you are *not* issuing a plain "nand erase" command - always make sure you tell it which partition to erase. If you forget this you'll brick the Neo and you'll need a debug board to recover it.}}
+
{{warning|Before you hit enter on one of the following commands, make sure that you are *not* issuing a plain "nand erase" command - always make sure you tell it which partition to erase. If you forget this you'll brick the Neo1973 and you'll need a debug board to recover it. For FreeRunner, you can recover using the NOR flash.}}
  
  nand erase clean rootfs
+
  nand erase rootfs
  nand erase clean kernel
+
  nand erase kernel
  
 
To exit cu you need to type:
 
To exit cu you need to type:
  
 
  ~.
 
  ~.
 +
 +
[[Category:Flash]]

Latest revision as of 21:15, 12 September 2008

To make a NAND erase, you need to connect to your device while in uboot using minicom or cu. The device will usually be called /dev/ttyACM0. You might need to

sudo chown uucp.uucp /dev/ttyACM0

to get the necessary right (even as root). Using cu, you can then access the Neo:

cu -l /dev/ttyACM0

After connecting, you should get a prompt where you can tell u-boot to clean certain parts of the NAND memory.

WARNING: Before you hit enter on one of the following commands, make sure that you are *not* issuing a plain "nand erase" command - always make sure you tell it which partition to erase. If you forget this you'll brick the Neo1973 and you'll need a debug board to recover it. For FreeRunner, you can recover using the NOR flash.


nand erase rootfs
nand erase kernel

To exit cu you need to type:

~.
Personal tools

To make a NAND erase, you need to connect to your device while in uboot using minicom or cu. The device will usually be called /dev/ttyACM0. You might need to

sudo chown uucp.uucp /dev/ttyACM0

to get the necessary right (even as root). Using cu, you can then access the Neo:

cu -l /dev/ttyACM0

After connecting, you should get a prompt where you can tell u-boot to clean certain parts of the NAND memory.

WARNING: Before you hit enter on one of the following commands, make sure that you are *not* issuing a plain "nand erase" command - always make sure you tell it which partition to erase. If you forget this you'll brick the Neo and you'll need a debug board to recover it.


nand erase clean rootfs
nand erase clean kernel

To exit cu you need to type:

~.