Fix : How to modify grub.cfg after installing DSM

How to modify grub.cfg after installing DSM


For whatever reason, you need to change the Serial number, MAC address, net interface and boot options after installing DSM, you need to modify the grub.cfg in the USB boot drive.


I use putty, and WinSCP, you can find them from the link below.

https://www.chiark.greenend.org.uk/~sgtatham/putty/

https://winscp.net/


1. Enable SSH from the control panel 

2. login SSH and run the command below,

sudo -i

mkdir -p /tmp/mountMe
cd /dev
mount -t vfat synoboot1 /tmp/mountMe
ls -l /tmp/mountMe


3. login through Winscp with SCP protocol


4. Go to /tmp/mountMe/grub folder, and you can modify the grub.cfg file directly.


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