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Hi,
My environment:
Edison/Linux version: 201603141535
Windows 10
Windows sees a drive named Edison with a size of 766 MB
Edison/Linux sees /media/storage of 785 MB (close enough)
Looking here: http://download.intel.com/support/edison/sb/edison101presentationfromidfforthecommunity.pdf
it says: Flash Storage 4 GB eMMC
I am assuming that /media/storage and the Edison disk are the SAME as Flash Storage.
Question: With the my March 2016 version of Yocto, was a change made so that 4GB is no longer used for /media/storage, i.e. for the Edison disk space that shows up on Windows?
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Hi Bill,
Thanks for your interest in the Intel Edison Platform.
This is a good question. The drive named Edison which is 766 MB, was a storage dedicated to flash the image in previous versions. Now this space is not used, the Yocto image is flashed in the 4 GB eMMC. I hope you find this information useful.
I will be waiting for your reply, have a nice day.
Best Regards,
-Jose.
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Hi Hose.
Thanks for the quick response.
Question: Is that 4 GB of eMMC visible to me when I login to Edison/Yocto? i.e. can I do something with it from the Yocto side.
Regards,
Bill
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Hi Bill,
Yes you can do something with it, for example if you are using the console, you can create a file using this command: touch new.txt. You will create a text file and it will be store in the 4GB. May I ask what are trying to do with this storage space?
I will be waiting for your reply, we hope you have a nice day!
Best Regards,
-Jose.
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Jose,
Thanks for the QUICKER response.
Regarding : "May I ask what are trying to do with this storage space?"
I am just playing with Edison and trying to understand lots of things. I am working through all the various samples projects and asking questions like this one and others.
Assuming the following:
The Windows Edison space of 766M is part of the eMMC4 GB space
On Linux that same SPACE is /media/storage which is mounted on /dev/loop0
Question: what is the file system for the eMMC 4GB that I would cd to and then do the touch new.txt
Regards,
Bill
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Hi Bill,
It is not necessary to access any storage file. Once you have access the Linux console, any file that you create in any directory, will be save in the 4GB eMMC. Below I attach you an example creating a file.
I'll be waiting for your reply, have a nice day.
Best Regards,
-Jose.
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Hi Jose,
This is very interesting!
Windows, Linux and Mac PCs have a hard disk, I'll call it disk0, which is where the OS is installed and where people install programs and place their data.
I see Edison as
another PC but with a different set of inputs and outputs compared to a Windows PC,
and it's disk0 is the 4GB of eMMC
The following two sets of text are from df command output, the second one is sorted.
root@edison:~# df
Filesystem 1K-blocks Used Available Use% Mounted on/dev/root 1444528 980812 373236 73% /
devtmpfs 491264 0 491264 0% /dev
tmpfs 491548 0 491548 0% /dev/shm
tmpfs 491548 596 490952 1% /run
tmpfs 491548 0 491548 0% /sys/fs/cgroup
tmpfs 491548 4 491544 1% /tmp
/dev/mmcblk0p10 1337936 2100 1319452 1% /home
tmpfs 491548 6164 485384 2% /var/volatile
/dev/mmcblk0p5 1003 19 913 3% /factory
/dev/mmcblk1p1 15549952 96 15549856 1% /media/sdcard
tmpfs 98312 0 98312 0% /run/user/0
/dev/loop0 784872 80 784792 1% /media/storage
root@edison:~#
root@edison:~# df | sort
Filesystem 1K-blocks Used Available Use% Mounted on/dev/loop0 784872 80 784792 1% /media/storage
/dev/mmcblk0p10 1337936 2100 1319452 1% /home
/dev/mmcblk0p5 1003 19 913 3% /factory
/dev/mmcblk1p1 15549952 96 15549856 1% /media/sdcard
/dev/root 1444528 980812 373236 73% /
devtmpfs 491264 0 491264 0% /dev
tmpfs 98312 0 98312 0% /run/user/0
tmpfs 491548 0 491548 0% /dev/shm
tmpfs 491548 0 491548 0% /sys/fs/cgroup
tmpfs 491548 4 491544 1% /tmp
tmpfs 491548 596 490952 1% /run
tmpfs 491548 6164 485384 2% /var/volatile
root@edison:~#
Question: do all the filesystems that begin with /dev reside on the eMMC disk0?
Question: are all of the NON /dev/filesystems created by Yocto in the 4GB of memory?
Regards,
Bill
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Hi Bill,
All the partitions you see using the command df, are done after you flash the image. The space that can be used is the one shown in /dev/root (1.4G). If you will like to increase the size of the root partition, I would recommend to follow this thread ( ). I hope you find this information useful.
Have a nice day.
Best Regards,
-Jose.
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Jose,
Thanks for the pointer.I am not at the point where I need to increase the size of /dev/root.
This was educational. Thanks for helping.
I am done.
Regards,
Bill
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Hi Bill,
Always happy to help, if you have any more questions please don't hesitate to contact us.
Have a nice day!
Best Regards,
-Jose.

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