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by epoch1970
Tue Feb 19, 2019 5:37 pm
Forum: General discussion
Topic: Doubt related to the OTA update Mechanism for Debian Operating System
Replies: 6
Views: 169

Re: Doubt related to the OTA update Mechanism for Debian Operating System

incognitum wrote:
Tue Feb 19, 2019 5:22 pm
Haven't tried on the Pi, but can't you get u-boot to let the dog out?
Yes, you can start it from u-boot, no problem.
by epoch1970
Tue Feb 19, 2019 4:22 pm
Forum: Networking and servers
Topic: Internet access for ethernet connected RPI network-- Stretch, 3b,3b+
Replies: 2
Views: 64

Re: Internet access for ethernet connected RPI network-- Stretch, 3b,3b+

May not be relevant, but one of the rpis is set up as a wireless hotspot with a bridge using what I think is Surfer Tim's tutorial: https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/ This "guide" is ludicrously wrong. The guy first sets up routing/masquerade and then nixes it...
by epoch1970
Tue Feb 19, 2019 3:26 pm
Forum: General discussion
Topic: Doubt related to the OTA update Mechanism for Debian Operating System
Replies: 6
Views: 169

Re: Doubt related to the OTA update Mechanism for Debian Operating System

I don't understand the semantic difference between "file level" update and "OS-level" update. These A/B systems all work the same: perform any sort of update, switch partition, reboot and see... ostree is different, it really works at FS level on a single partition. ubuntu snappy core is again diffe...
by epoch1970
Mon Feb 18, 2019 10:35 pm
Forum: Networking and servers
Topic: WiFi Bridge
Replies: 9
Views: 170

Re: WiFi Bridge

Ok. You need to connect the cable from usb0 on Pi1 to eth0 on Pi2. Setup Pi2 as in the bridged config you linked above, with eth0 and wlan0 in a bridge br0 in Pi2. (Br0 will get its DHCP address via Pi1) In hostapd.conf, use the same SSID and password, but change the channel. Select a non overlappin...
by epoch1970
Mon Feb 18, 2019 10:23 pm
Forum: General discussion
Topic: DNS error
Replies: 9
Views: 165

Re: DNS error

How I fix the mess. Will making my hostname e Mail be enough Look at the (short) documentation freenom provides. In addition: - A mail server must have an A record, not a CNAME - For the last 15 years at least, self hosting a public mail server has proven to be the wrong choice. Once your DNS recor...
by epoch1970
Mon Feb 18, 2019 9:54 pm
Forum: Troubleshooting
Topic: USB boot works ok but getting flashing green light
Replies: 4
Views: 100

Re: USB boot works ok but getting flashing green light

Interesting, thanks. Maybe there is another, purely cosmetic, solution: changing the ACT led to react to something else than disk activity. E.g. $ cat /sys/class/leds/led0/trigger none kbd-scrolllock kbd-numlock kbd-capslock kbd-kanalock kbd-shiftlock kbd-altgrlock kbd-ctrllock kbd-altlock kbd-shift...
by epoch1970
Mon Feb 18, 2019 9:28 pm
Forum: Networking and servers
Topic: WiFi Bridge
Replies: 9
Views: 170

Re: WiFi Bridge

No I don't have a main router. I have a cable modem that runs into my Raspberry Pi. I feel compelled to rain a little bit on that parade. Your Pi acquires an IP address via the "cable modem": - On which interface: eth0 or ppp0? - Is it a private address (10.x.x.x, 172.[16-31].x.x, 192.168.x.x)? Do ...
by epoch1970
Mon Feb 18, 2019 9:14 pm
Forum: General discussion
Topic: DNS error
Replies: 9
Views: 165

Re: DNS error

It's a DNS problem. Not an SMTP problem.
Which will come next, anyway...
by epoch1970
Mon Feb 18, 2019 9:11 pm
Forum: Troubleshooting
Topic: Auto shutdown after first start
Replies: 1
Views: 60

Re: Auto shutdown after first start

That is the cause, most certainly. At boot, the system date is the date at previous shutdown (this via fake-hwclock) until NTP has re-synchronized time. When NTP synchronizes, your system clock jumps and suddenly it's time for shutdown. Testing against a monotonic clock, via "uptime" (or "cat /proc/...
by epoch1970
Mon Feb 18, 2019 8:51 pm
Forum: General discussion
Topic: DNS error
Replies: 9
Views: 165

Re: DNS error

Well, that says mail.torombolo.ml is nonexistent... $ dig MX torombolo.ml ; <<>> DiG 9.11.5 <<>> MX torombolo.ml ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62990 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION:...
by epoch1970
Mon Feb 18, 2019 5:46 pm
Forum: Advanced users
Topic: systemd socket issues
Replies: 2
Views: 64

Re: systemd socket issues

Perhaps add "Freebind=true" in [Socket]?
by epoch1970
Mon Feb 18, 2019 4:14 pm
Forum: Networking and servers
Topic: WiFi Bridge
Replies: 9
Views: 170

Re: WiFi Bridge

The first Pi is a wifi router, as in the same page you linked?
I suppose you have a main router (ISP box?)
by epoch1970
Mon Feb 18, 2019 4:10 pm
Forum: Advanced users
Topic: Reconnect WLAN
Replies: 3
Views: 90

Re: Reconnect WLAN

Ouch, that's a crash, not good at all. If you suddenly remove the USB adapter you'd get this kind of crash, same if the adapter doesn't get enough power from the PSU. If this happens during normal operation, perhaps the cause is in the adapter driver? Reloading the module might be a workaround, but ...
by epoch1970
Mon Feb 18, 2019 12:06 pm
Forum: Beginners
Topic: I need project ideas for the Raspberry Pi 3 B?
Replies: 5
Views: 135

Re: I need project ideas for the Raspberry Pi 3 B?

You could start here: https://projects.raspberrypi.org/en or with a copy of MagPi
Once you have an idea, try to see what the requirements are and assess complexity, budget, workload.
Rinse, repeat, ask around. Then choose the best candidate and go.
by epoch1970
Sun Feb 17, 2019 9:15 pm
Forum: Raspbian
Topic: Bash script command to check swap and show error?
Replies: 8
Views: 154

Re: Bash script command to check swap and show error?

Shell built-in math operators work in integer, so something like $(( $grepped_value / 1000000)) should return 0 unless you’re over the 1M mark.
by epoch1970
Sun Feb 17, 2019 1:55 pm
Forum: Troubleshooting
Topic: I can´t use my raspberry pi 3
Replies: 1
Views: 55

Re: I can´t use my raspberry pi 3

Something happened that reset power on the Pi and in turn possibly corrupted the SD card.
Reinstalling your OS could probably resolve the issue.
by epoch1970
Sun Feb 17, 2019 10:18 am
Forum: Networking and servers
Topic: Need help debugging wlan0 'carrier lost' problem
Replies: 3
Views: 87

Re: Need help debugging wlan0 'carrier lost' problem

With the full version, are you running with keyboard and or mouse attached to the Pi?
It could be a random number generation issue.
Running wpa_supplicant in debug mode should give more insight on what is really happening.
by epoch1970
Sun Feb 17, 2019 9:15 am
Forum: Advanced users
Topic: Reconnect WLAN
Replies: 3
Views: 90

Re: Reconnect WLAN

The old ifconfig has been obsoleted by “ip” commands. “ip link set dev <dev> down” is the replacement for “ifconfig <dev> down” https://baturin.org/docs/iproute2/ ifupdown is even more obsolete, do not use “ifup” or “ifdown” unless you know why. Try “ip link <dev> up” and then see if the interface r...
by epoch1970
Sat Feb 16, 2019 2:46 pm
Forum: Advanced users
Topic: Which Rasp for "pro" project?
Replies: 12
Views: 295

Re: Which Rasp for "pro" project?

Standard Pi and SD are available in any quantity, immediately and at good price.
That is a serious asset for a “big” deployment.

If you intend to “factory install” the system, you have to flash every storage unit, SD or not.
With an SD you can reasonably rely on user install.
by epoch1970
Sat Feb 16, 2019 12:36 pm
Forum: Troubleshooting
Topic: Duplicating old avahi settings onto a new stretch image
Replies: 5
Views: 60

Re: Duplicating old avahi settings onto a new stretch image

There is a configuration file for avahi-deamon in /etc/avahi, active interfaces can be defined there (all by default)
by epoch1970
Sat Feb 16, 2019 11:00 am
Forum: Networking and servers
Topic: Raspberry Pi as a personal VPN [Simple guide]
Replies: 1
Views: 136

Re: Raspberry Pi as a personal VPN [Simple guide]

So you recommend installing the CA scripts (easy-rsa) on a tunnel endpoint?
You could have made that part different from the myriad of howtos already floating around...
by epoch1970
Sat Feb 16, 2019 10:48 am
Forum: Advanced users
Topic: Read-only fs (on purpose!), problems with ssl/time
Replies: 7
Views: 187

Re: Read-only fs (on purpose!), problems with ssl/time

Linux (or is it systemd?) sets the system date to the kernel build date if no RTC is available. Fake-hwclock sets the date to the last shutdown date, but it needs to write somewhere... If you don’t want to make anything writable, make sure ntp doesn’t quit (tinker panic). To improve clock sync speed...
by epoch1970
Fri Feb 15, 2019 11:44 am
Forum: Troubleshooting
Topic: Duplicating old avahi settings onto a new stretch image
Replies: 5
Views: 60

Re: Duplicating old avahi settings onto a new stretch image

Different interface names?
(I don’t see that the new Pi is failing, from your post. Run identical commands on each machine to make comparison possible. Beware of truncated lines, too)
by epoch1970
Fri Feb 15, 2019 12:15 am
Forum: Off topic discussion
Topic: Should the Pi Forum switch to Discourse?
Replies: 24
Views: 702

Re: Should the Pi Forum switch to Discourse?

No. Discourse is a marketing/customer support product designed for things like call avoidance and community engagement.
I don’t think it fits here.

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