[Librecmc-users] Another Upgrade Failure

Michael Vincent mcv at protonmail.com
Wed Apr 11 15:52:33 EDT 2018


Hi,

It seems like I've soft-bricked my ThinkPenguin TPE-R1100 router while trying to upgrade LibreCMC on it, and now I can't get it working again. I have contacted ThinkPenguin support, but so far they haven't suggested anything I haven't already tried.

The problems I encountered were very similar to those described by Simon Lydell in the recent thread called "Tried to upgrade my router and failed :(" . I upgraded LibreCMC from 1.4.1 to 1.4.2, and then again to 1.4.3. I'm pretty sure I foolishly overlooked the "uncheck keep settings" step, though. Once things stopped working right, I tried to do a full reset of the router, but it just made things worse. The status lights on the router are, from left to right, green, off, and red.

I tried following the advice that worked for Simon; unfortunately, Christopher Howard's suggested commands to fix dnsmaq didn't work for me. I somehow eventually managed to get an internet connection back, but now I'm stuck.

Like Simon, my main problem is that I can't connect to the LuCI interface. I seem to only be able to connect to the internet via IPv6 connections. I can connect to the router via ssh (at first using the link-local address, but then I noticed that just using 192.168.10.1 worked). I've repeatedly tried the 'firstboot' command, but it never fixes the problem.

I note that uhttpd does not show up in the output of 'ps', and ls -lh /www returns nothing.
Below are the outputs of a couple other commands that were requested of Simon. (I originally tried sending this with the log file appended, but it didn't go through since the message size was too big. I will try sending it as a response to this message.)

Any assistance you can give me in will be much appreciated! As you may have been able to guess, I'm still learning a lot of this stuff.

Cheers,
Michael Vincent

Output of 'ip addr' on my desktop machine:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 94:de:80:60:02:f9 brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.126/24 brd 192.168.10.255 scope global dynamic eth0
       valid_lft 42664sec preferred_lft 42664sec
    inet6 fd30:bbea:c8b::3cc/128 scope global
       valid_lft forever preferred_lft forever
    inet6 fd30:bbea:c8b:0:96de:80ff:fe60:2f9/64 scope global noprefixroute
       valid_lft forever preferred_lft forever
    inet6 fe80::96de:80ff:fe60:2f9/64 scope link
       valid_lft forever preferred_lft forever

Output of 'ip addr' on router:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP qlen 1000
    link/ether e4:95:6e:4e:f3:e8 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.2/24 brd 10.0.0.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::e695:6eff:fe4e:f3e8/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br-lan state UP qlen 1000
    link/ether e4:95:6e:4e:f3:e8 brd ff:ff:ff:ff:ff:ff
4: ip6tnl0 at NONE: <NOARP> mtu 1452 qdisc noop state DOWN qlen 1
    link/tunnel6 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 brd 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
5: sit0 at NONE: <NOARP> mtu 1480 qdisc noop state DOWN qlen 1
    link/sit 0.0.0.0 brd 0.0.0.0
7: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
    link/ether e4:95:6e:4e:f3:e8 brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.1/24 brd 192.168.10.255 scope global br-lan
       valid_lft forever preferred_lft forever
    inet6 fd30:bbea:c8b::1/60 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::e695:6eff:fe4e:f3e8/64 scope link
       valid_lft forever preferred_lft forever
8: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP qlen 1000
    link/ether e4:95:6e:4e:f3:e8 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::e695:6eff:fe4e:f3e8/64 scope link
       valid_lft forever preferred_lft forever
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