Nand erase
From Openmoko
(Difference between revisions)
m (chown uucp.uucp /dev/ttyACM0 => sudo chown uucp.uucp /dev/ttyACM0) |
m (-Documentation, -Technical, -Software (non-openmoko), +Flash) |
||
| (8 intermediate revisions by 8 users not shown) | |||
| Line 1: | Line 1: | ||
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 | 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 | + | sudo chown uucp.uucp /dev/ttyACM0 |
to get the necessary right (even as root). Using cu, you can then access the Neo: | to get the necessary right (even as root). Using cu, you can then access the Neo: | ||
| Line 7: | Line 7: | ||
cu -l /dev/ttyACM0 | cu -l /dev/ttyACM0 | ||
| − | After connecting, you should get a prompt | + | 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: | ||
| + | |||
| + | ~. | ||
| + | |||
| + | [[Category:Flash]] | ||
Latest revision as of 22:15, 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:
~.
