How to install Debian to NAND - Revision history

LubOlimex at 06:53, 11 September 2020

2020-09-11T06:53:58Z

2019-06-03T13:49:33Z

‎FAQ

2019-03-29T06:45:21Z

‎FAQ

2019-03-29T06:40:16Z

‎FAQ

2017-02-14T06:21:37Z

‎How to install Debian to the NAND memory

2016-11-02T06:23:54Z

‎microSD card boot vs NAND memory boot

2016-11-02T06:23:36Z

‎microSD card boot vs NAND memory boot

2016-11-02T06:22:41Z

‎microSD card boot vs NAND memory boot

2016-07-05T08:56:43Z

‎FAQ

2015-12-23T12:23:44Z

@@ Line 11: / Line 11: @@
 # when there is no microSD card connector, no external connections are allowed, or microSD card is not a preferred storage medium;
 # for academic reasons;
-# Since it is harder to compromise the security of the system physically (as opposed to just stealing the microSD card).
+# it is harder to compromise the security of the system physically (as opposed to just stealing the microSD card).
@@ Line 19: / Line 19: @@
 # it is harder to make a backup;
 # in case of a problem with the file system – the device would not boot and the recovery (of your data) would be nearly impossible.
 <br>

@@ Line 103: / Line 103: @@
 <nowiki>#</nowiki> devmem 0x01c20164 w 0x1006
 '''Q:''' Can I use mainline kernel Armbian-based images with my A20 NAND board?
 '''A:''' If you wish to use the NAND memory, then it is not recommended. The NAND driver support had been poor. Check first if the NAND driver support in the mainline had been improved. For mainline kernel, consider boards with eMMC flash memory instead of NAND, since the driver support is better.

@@ Line 98: / Line 98: @@
 Check the value with:
-devmem 0x01c20164
+<nowiki>#</nowiki> devmem 0x01c20164
 Change the value with:
-devmem 0x01c20164 w 0x1006
+<nowiki>#</nowiki> devmem 0x01c20164 w 0x1006
 '''Q:''' Can I use mainline kernel Armbian-based images with my A20 NAND board?
 '''A:''' If you wish to use the NAND memory, then it is not recommended. The NAND driver support had been poor. Check first if the NAND driver support in the mainline had been improved. For mainline kernel, consider boards with eMMC flash memory instead of NAND, since the driver support is better.

← Older revision		Revision as of 06:40, 29 March 2019
Line 91:		Line 91:

	Now the board should be able to operate with the nandinstall script as usual.		Now the board should be able to operate with the nandinstall script as usual.
		+
		+	'''Q:''' Everything worked fine when using the image from the card, but when I install to the NAND, the Ethernet stopped working. What went wrong?
		+
		+	'''A:''' If after installation to the NAND you have problems with the Ethernet, check the value of address 0x01c20164 in the memory, if it is 0x0 then change the value to 0x1006. Then test again. Do the following:
		+
		+	Check the value with:
		+
		+	devmem 0x01c20164
		+
		+	Change the value with:
		+
		+	devmem 0x01c20164 w 0x1006
		+
		+	'''Q:''' Can I use mainline kernel Armbian-based images with my A20 NAND board?
		+
		+	'''A:''' If you wish to use the NAND memory, then it is not recommended. The NAND driver support had been poor. Check first if the NAND driver support in the mainline had been improved. For mainline kernel, consider boards with eMMC flash memory instead of NAND, since the driver support is better.

@@ Line 39: / Line 39: @@
 . Establish connection to the command line interface of the board.
-. Execute nandinstall script.
+. Execute nandinstall script (type nandinstall and press enter).
 . Wait until Debian installs on the NAND memory (it takes around 10 minutes).

@@ Line 8: / Line 8: @@
 # if you are aiming for minimal power consumption;
 # when there is no microSD card connector, no external connections are allowed, or microSD card is not a preferred storage medium;
 # for academic reasons;
@@ Line 15: / Line 16: @@
 Using NAND is worse than using microSD card because:
-# it is slower than a class 10 microSD card;
+# you need more software knowledge, especially regarding file systems;
 # it is harder to make a backup;
 # in case of a problem with the file system – the device would not boot and the recovery (of your data) would be nearly impossible.
 === How to install Debian to the NAND memory ===

@@ Line 50: / Line 50: @@
 '''Q:''' I did everything like you explained above and when I boot from the NAND I receive only black screen. Nothing on the console. What did I do wrong???
-'''A:''' You did nothing wrong. The script above was written and tested on board that already had Android installed on the NAND memory. The problem is related to the fact that we no longer load Android to the NAND memory of A20 boards. No Android on the NAND = script not working.
+'''A:''' You did nothing wrong. The script above was written and tested on board that already had Android installed on the NAND memory. The problem might be related to the fact that we didn't load Android to the NAND memory of A20 boards for some time. No Android on the NAND = script not working.
 ''It seems that the problem is caused by boot0 and boot1 code on the device, boot0 and boot1 code is located at a special area, which only the tools released by Allwinner (PhoenixSuit) can access. The problem is that the tools are not open-source and no one knows what happens exactly.''
-'''There are two workarounds:'''
+'''At the current moment we are uploading proper boot codes during production and this issue should no longer appear, but in case you are affected there are two workarounds:'''
 '''1) Install Android to the NAND first using PhoenixSuit or LiveSuit (depending on the board) and then perform the nandinstall script again. The wiki of each board has instructions and images for Android install via the USB.'''