WinSCP permissions on Raspberry Pi

My son has set up a Raspberry Pi in the home to display images. He enabled FTP and told me to connect via WinSCP. I have done this, and I see all the folders on the Raspberry Pi. However, I cannot upload images or do anymodifications on the raspberry pi due to a permissions problem.

Any ideas what could be the cause of this?

I am logging in with his username and password, which has full rights to the Pi.

Thank you.
Lev SeltzerAsked:
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Jackie ManCommented:
It is the default behaviour and you need to make the following changes.

decided to access the SD card through RPi, and I’m using the program “WinSCP” for that. The /flash/ folder is read only by default so you need to mount it with write permission before you can upload your config.txt file. (I’m using PuTTY for that) Run these commands to do it:
a. Command: “mount -o remount,rw /flash”
b. [Then upload your config.txt file through WinSCP]
c. Command: “mount -o remount,ro /flash”
d. Command: “reboot”

Lev SeltzerAuthor Commented:
I get the error mount: mount point /flash does not exist

My son says that he installed ubuntu mate, so maybe that makes a difference.
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