How to Write an Image to the eMMC Module Tutorial
#11
Mark, excellent. Thank you.

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#12
(08-15-2017, 12:05 PM)MarkHaysHarris777 Wrote: I also have ported ayufan's script to the rock64 -- rock64_install_to_emmc,  which further simplifies things by allowing the user to select the system and version, as well automatically generating the curl file;  very nice.

Does the script automatically interrupt the uboot timer or is it just for everything after step 6?
#13
(08-15-2017, 02:13 PM)Lexstar Wrote:
(08-15-2017, 12:05 PM)MarkHaysHarris777 Wrote: I also have ported ayufan's script to the rock64 -- rock64_install_to_emmc,  which further simplifies things by allowing the user to select the system and version, as well automatically generating the curl file;  very nice.

Does the script automatically interrupt the uboot timer or is it just for everything after step 6?


The script helps only after the SD is fully booted;  well, its a gnu+linux bash script, it doesn't work at boot-up.  Interrupting uboot is manual, based on the feedback received on the serial console alone.
marcushh777    Cool

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#14
I have updated this thread with the information from this link:

Shy
marcushh777    Cool

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#15
Would you see the same output from a monitor if you do not have a serial cable? I am just wondering whether you can get away with that approach.

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#16
(08-16-2017, 06:32 AM)jl_678 Wrote: Would you see the same output from a monitor if you do not have a serial cable? I am just wondering whether you can get away with that approach.

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From the guide (with emphasis):

MarkHaysHarris777 Wrote: The serial console is very important because the normal display does not show boot-up messages!

Technically you could try to time it blind, but unless you already know how the boot output over serial looks you are unlikely to get it right.
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#17
Sorry, I read it too fast. Thank you.

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#18
(08-16-2017, 08:28 AM)fire219 Wrote: Technically you could try to time it blind, but unless you already know how the boot output over serial looks you are unlikely to get it right.

Yesterday I tried to it blind.
When I removed the jumper 3 seconds after turning on the power, writing the image succeeded.
However, this method may be dangerous. Then I will try to it by using a serial adapter (CP2104) tonight.
#19
(08-16-2017, 11:47 PM)hirot78 Wrote:
(08-16-2017, 08:28 AM)fire219 Wrote: Technically you could try to time it blind, but unless you already know how the boot output over serial looks you are unlikely to get it right.

Yesterday I tried to it blind.
When I removed the jumper 3 seconds after turning on the power, writing the image succeeded.
However, this method may be dangerous. Then I will try to it by using a serial adapter (CP2104) tonight.

Well done. It's definitely not impossible to do, it's just a bit difficult.

Also, welcome to the forums. Smile
Community administrator and sysadmin for PINE64
(Translation: If something breaks on the website, forum, or chat network, I'm a good person to yell at about it)

#20
Experienced IT guy here, but noob to SBC. I just wanted to make sure I got this right.
Do I need a serial terminal to install Android to the eMMC or just to install linux to the eMMC? (per fire219 on 08-15-2017, 02:05 PM).
If so does the CP2102 module USB to 3.3V TTL referenced in the tutorial require soldering to the rock64?
if so are their guides for it? Thanks for the support.


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