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cmdline.txt is a file for passing arguments to the Linux kernel during the boot process.

1 vote

how to prevent rpi4 s to overwrite the cmdline.txt

At least one answer here suggests that the code that parses /boot/cmdline.txt is picky. … It would also be a good idea to make a copy of the original /boot/cmdline.txt file, and keep that in a safe place. …
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3 votes
Accepted

How do I regain access to either the filesystem or terminal on a raspberry pi that has all n...

Your config.txt and cmdline.txt files are located in the FAT32 partition (/boot/config.txt) - therefore you may edit it, and correct your errors on virtually any computer. …
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2 votes

As of the current date, what is the default /boot/config.txt

Here's my cmdline.txt file from my 3B+ stretch RPi: dwc_otg.lpm_enable=0 console=tty1 console=serial0,115200 root=PARTUUID=bb8517b1-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait AFAIK …
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