Can't change root password on OpenWrt because of read-only file system

Community
#1

Hi,

I recently purchased Mini Router/PC with Raspberry Pi Compute Module 4, Dual Gigabit Ethernet NICs, 4GB RAM/32GB eMMC, Support OpenWRT. I was able to power it up and ssh in as root, however when I try to set a password, I get an error saying…

passwd: /etc/passwd: Read-only file system
passwd: can’t update password file /etc/passwd

My research thus far has not yielded any solutions that work (e.g. remounting, mtd, etc…).

The only other solution that I haven’t tried yet is re-flashing the OpenWRT image on to the RPi’s eMMC. Before I crack the box and do that, I thought I would see if anyone might point out something obvious that I’ve missed.

Thanks,
Brett

1 Like
#2

Just got mine yesterday and have the same issue. I was going to reimage it also but thought I’d do the same thing you did and search first. Maybe I’ll wait a day and see if we get any replies.

doug-

#3

Unfortunately the same thing happen with me, it is shipped with a bugged openwrt img.

I downloaded the latest version and flashed it to the emmc and the problem is fixed.

follow this

#4

Same for me on both counts, the file system was read-only, and I flashed their latest build, and it is working as intended. The only issue I am working through is that there is so much bloat on their custom-built. I don’t want or need asterisk, docker, or a NAS because I already have those. I was looking for a lightweight firewall.

I tried the stock CM4 build, but it lacks their custom driver for the second NIC. I am curious if they have a clean stock build.

1 Like
#5

Thanks for the replies. As noted by others, I was able to reflash the image on to the eMMC and everything works a treat now.

Brett

#6

Hi Seeed support folks… Surely having to take 15 steps to refresh the OS is not how this is supposed to work… Can you fix the image you pre-install so that /etc isn’t on a read-only file system? (This is still happening, and I just received my new mini-router via DHL today.)

I love Seeed Studio, but I didn’t expect to have to rebuild the router to make it work. You guys usually have a better user experience!

#7

Just got one today, same problem.

#8

Same Issue.

Seems Seeed hasn’t fixed this, and I see no other way to let them know.

I was hoping to get other items from them, but this first purchase has left me looking elsewhere.

#9

I have been unable to mount or re-flash. I jumper the pins and connect with USB-C, but only the /boot drive shows up. In the web gui, I uploaded a recommended image, and it seems to proceed, but still an R/O filesystem. Can someone tell me exactly what they connected? thanks.

#10

This is still happening on May 24, 2022.