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by Martin Frezman
Mon Sep 18, 2017 1:51 pm
Forum: Beginners
Topic: Missing menu
Replies: 10
Views: 4270

Re: Missing menu

Was messing w/display settings on RPI3B w/ Stretch and menu went missing after reboot. Reset display on my 19" tv to defaults, rebooted and menu is back. As I was implying above, I doubt it actually had anything to do with what you were doing/changing. It is just random; sometimes it happens, somet...
by Martin Frezman
Mon Sep 18, 2017 3:24 am
Forum: Troubleshooting
Topic: Is there a way to put the Raspbian System on an USB stick so it boots?
Replies: 9
Views: 1236

Re: Is there a way to put the Raspbian System on an USB stick so it boots?

I disagree on both points, but you're certainly entitled to your opinions.
by Martin Frezman
Mon Sep 18, 2017 1:48 am
Forum: Troubleshooting
Topic: Is there a way to put the Raspbian System on an USB stick so it boots?
Replies: 9
Views: 1236

Re: Is there a way to put the Raspbian System on an USB stick so it boots?

While there is a special standalone version of bootcode.bin that will boot a USB drive, as I noted in the other thread (referenced above), it has drawbacks if you ever have more than a single USB drive plugged in. I recommend staying with a minimal (Raspbian Lite) SD card which has its /boot/cmdlin...
by Martin Frezman
Mon Sep 18, 2017 12:09 am
Forum: Troubleshooting
Topic: Is there a way to put the Raspbian System on an USB stick so it boots?
Replies: 9
Views: 1236

Re: Is there a way to put the Raspbian System on an USB stick so it boots?

ny bootable Raspbian SD card is suitable for use as an "old style USB boot"
Yepper. That's why I suggested using the smallest (or cheapest) one you can find.

They say that if you do it right, it only needs to contain one file (bootcode.bin).
by Martin Frezman
Sun Sep 17, 2017 10:02 pm
Forum: Beginners
Topic: Crontab not working at reboot
Replies: 12
Views: 14723

Re: Crontab not working at reboot

DougieLawson wrote:
Sun Sep 17, 2017 9:57 pm
Is this a nasty case of "sudoitis" where the OP assumes everything remotely complex needs to run under sudo?
Quite possibly. Impossible to say w/o seeing the code.
by Martin Frezman
Sun Sep 17, 2017 10:01 pm
Forum: Beginners
Topic: Crontab not working at reboot
Replies: 12
Views: 14723

Re: Crontab not working at reboot

also its not good practice to run sudo like that if you want to run your script at root the use sudo crontab -e to create your cron line in the root cron. False. OP, please ignore this comment by the previous poster. A) There is nothing wrong with using sudo in crontab (or anywhere else that you ne...
by Martin Frezman
Sun Sep 17, 2017 9:27 pm
Forum: Troubleshooting
Topic: Is there a way to put the Raspbian System on an USB stick so it boots?
Replies: 9
Views: 1236

Re: Is there a way to put the Raspbian System on an USB stick so it boots?

As should be clear by now, it is simply a question of semantics. Of definitions. Of how much of a stickler you want to be. While it is true that you cannot boot entirely from USB - with no SD card involved in the process at all - unless you have the latest version(s) of the Pi, it turns out that thi...
by Martin Frezman
Sun Sep 17, 2017 4:05 pm
Forum: General discussion
Topic: Sudo RPI-UPDATE error
Replies: 5
Views: 2610

Re: Sudo RPI-UPDATE error

I'm still getting the error. Can you help?
All you're going to get is another round or two of "Don't do that!".
by Martin Frezman
Sun Sep 17, 2017 4:02 pm
Forum: General discussion
Topic: [PI0W] ? and serial ports on zero W
Replies: 6
Views: 5559

Re: [PI0W] ? and serial ports on zero W

I am not using raspbian,
Which system are you using?
by Martin Frezman
Sun Sep 17, 2017 10:43 am
Forum: Advanced users
Topic: Script runs normally except when called via cron
Replies: 12
Views: 1675

Re: Script runs normally except when called via cron

not forgetting there needs to be a space between the last character of your existing line and the first > Not true. This works fine in all sh-like shells (including bash): echo foo>/tmp/bar There is no need for a space before the > in any redirection. Although it is, of course, good form to do it a...
by Martin Frezman
Sun Sep 17, 2017 10:38 am
Forum: Beginners
Topic: Two SD cards, Two images. How to boot from one SD?
Replies: 10
Views: 1197

Re: Two SD cards, Two images. How to boot from one SD?

That is debatable whether or not NoobS/PINN are Boot Managers, *Everything* is debatable. It is debatable whether the earth is flat. Check out the website of The Flat Earth Society, where they make a pretty convincing case. This is not a joke website. NOOBS/PINN is no more and no less of a bootload...
by Martin Frezman
Sun Sep 17, 2017 9:22 am
Forum: Raspbian
Topic: who -b
Replies: 3
Views: 577

Re: who -b

Bottom line: It is s bug in the implementation of systemd.

It worked correctly in wheezy - broken in Jessie (and, presumably, also in Stench)
by Martin Frezman
Sun Sep 10, 2017 6:46 pm
Forum: Troubleshooting
Topic: Recovery mode
Replies: 5
Views: 4814

Re: Recovery mode

It's pretty clear to me that OP is talking about the recovery mode in NOOBS/PINN.

And the answer is easily Googleable. The answer is "forcetrigger" in recovery.cmdline
by Martin Frezman
Sun Sep 10, 2017 5:44 pm
Forum: Networking and servers
Topic: ssh key pairing between two pi's still requires password after setup
Replies: 28
Views: 6250

Re: ssh key pairing between two pi's still requires password after setup

It seems less error prone than copying keys around by hand. Two reasons: 1) Because it is just another tool to learn and doesn't really gain you anything to learn it. Note, incidentally, that ssh-copy-id is implemented as a shell script, so you know it is not doing anything particularly fancy or an...
by Martin Frezman
Sun Sep 10, 2017 4:25 pm
Forum: Beginners
Topic: User and Password Confusion
Replies: 7
Views: 1131

Re: User and Password Confusion

Nothing. Basically, those tuts are out-of-date. Current Raspbian boots directly to the desktop with no prompt for user id or password - unless you take specific steps to make it do something else. In the early days of Raspbian, it would boot up to a login: prompt, from which you would login (as pi/r...
by Martin Frezman
Sun Sep 10, 2017 4:20 pm
Forum: Troubleshooting
Topic: /bin/sh can't access tty job control turned off error
Replies: 4
Views: 1302

Re: /bin/sh can't access tty job control turned off error

Erm... it's actually just a single install for i386+ CPUs. Doesn't matter if it's MAC or a WinTel or whatever. The OS will determine the hardware when installing / booting. Yeah, that's what I thought. Nowadays, Macs are effectively all i386 - so basically the same hardware as Windows (Yes, I'm ove...
by Martin Frezman
Sun Sep 10, 2017 2:39 pm
Forum: Raspbian
Topic: Tutorial: Compile VLC with HW acceleration - Jessie, RPi 2/3
Replies: 404
Views: 218611

Re: Tutorial: Compile VLC with HW acceleration - Jessie, RPi 2/3

But feel free to do the work and publish it on some server.
Heh heh...

If *YOU*, who are presumably the expert on this, can't do it, it is NBL that I'd have any luck.
by Martin Frezman
Sun Sep 10, 2017 12:33 pm
Forum: Raspbian
Topic: Tutorial: Compile VLC with HW acceleration - Jessie, RPi 2/3
Replies: 404
Views: 218611

Re: Tutorial: Compile VLC with HW acceleration - Jessie, RPi 2/3

That's nothing which can be explained (and done) briefly.
Once again, the question has to be asked:

Why can't someone, who has, in fact, already done it, do it, and make the binary publicly available???

Why does it have to be distributed in "kit form only" ???
by Martin Frezman
Sun Sep 10, 2017 11:07 am
Forum: Beginners
Topic: RPI Zero W - Which OS is efficient for Internet browsing
Replies: 10
Views: 4765

Re: RPI Zero W - Which OS is efficient for Internet browsing

You can try Epithany... FWiW, I always found Epiphany to be the worst of both worlds - lightweight (i.e., lacking in many features) and buggy/sluggish (like bigger, featureful browsers). Therefore, when I need lightweight, I use Midori, which was the original graphical browser for Raspbian. It stil...
by Martin Frezman
Sun Sep 10, 2017 10:54 am
Forum: Raspbian
Topic: Cannot resize Raspbian Stretch lite images with Parted
Replies: 30
Views: 9972

Re: Cannot resize Raspbian Stretch lite images with Parted

Martin.. can you help me make the necessary changes to commandline.txt and /etc/fstab ?? Note 1: I'm assuming from your question that you're new enough to the Pi that you were not exposed to the old way - that is, the pre-April 2017 way. Note 2: The below assumes Raspbian, and a "raw" (non-NOOBS) i...
by Martin Frezman
Sun Sep 10, 2017 9:15 am
Forum: Networking and servers
Topic: ssh key pairing between two pi's still requires password after setup
Replies: 28
Views: 6250

Re: ssh key pairing between two pi's still requires password after setup

I set:- PermitRootLogin no and change the port number away from 22 I'm sure there are lots of other changes people could make as well, but, staying focussed, none of these changes have anything to do with OP's problem. As the previous poster said, you don't need to make any changes to the default s...
by Martin Frezman
Sun Sep 10, 2017 8:42 am
Forum: Beginners
Topic: Creating NEW Root user
Replies: 18
Views: 6089

Re: Creating NEW Root user

Put Raspbian on a new SD card, then you can place the old SD card in a card reader in a USB port and do whatever you want with it.
Part of his specification was "without adapters", so that won't work.
by Martin Frezman
Sun Sep 10, 2017 8:39 am
Forum: Advanced users
Topic: Synchronizing time in three Raspberry Pi Zeros without internet connection
Replies: 8
Views: 1852

Re: Synchronizing time in three Raspberry Pi Zeros without internet connection

My suggestions would be to: 1) Get ZeroWs instead of plain Zeros. Then you get built-in wireless. 2) Rather than trying to time sync the machines and say "Do something at a specific time", just have one machine "remote execute" (via ssh) to the other machine(s). Note: If the machines are going to be...
by Martin Frezman
Sun Sep 10, 2017 1:29 am
Forum: Raspbian
Topic: Cannot resize Raspbian Stretch lite images with Parted
Replies: 30
Views: 9972

Re: Cannot resize Raspbian Stretch lite images with Parted

I read through the article at the first URL you posted and it seems pretty clear what is going on. Was it unclear to you? It says that the problem is that parted (and, therefore also gparted) changes the PARTUUID (Whatever that is) on the disk (SD card) and that causes current (unmodified) versions ...
by Martin Frezman
Sat Sep 09, 2017 8:16 pm
Forum: Networking and servers
Topic: ssh key pairing between two pi's still requires password after setup
Replies: 28
Views: 6250

Re: ssh key pairing between two pi's still requires password after setup

I think it's more useful to see the full debug log instead of the first 5 lines.
I would also increase the debug level. Use -vvv
It's all good.

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