Entries for Planet Debian.

cryptsetup password and parallel boot

Since parallel boot happened, during boot the cryptsetup password prompt in my system gets flooded with other boot messages.

I fixed it, as suggested in #764555, installing plymouth, then editing /etc/default/grub to add splash to GRUB_CMDLINE_LINUX_DEFAULT:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Besides showing pretty pictures (and most importantly, getting them out of my way if I press ESC), plymouth also provides a user prompt that works with parallel boot which sounds like what I needed.

Posted Fri Oct 24 10:20:22 2014 Tags:

Alternate rescue boot entry with systemd

Since systemd version 215, adding systemd.debug-shell to the kernel command line activates the debug shell on tty9 alongside the normal boot. I like the idea of that, and I'd like to have it in my standard 'rescue' entry in my grub menu.

Unfortunately, by default update-grub does not allow to customize the rescue menu entry options. I have just filed #766530 hoping for that to change.

After testing the patch I proposed for /etc/grub.d/10_linux, I now have this in my /etc/default/grub, with some satisfaction:

GRUB_CMDLINE_LINUX_RECOVERY="systemd.log_target=kmsg systemd.log_level=debug systemd.debug-shell"

Further information:

Thanks to sjoerd and uau on #debian-systemd for their help.

Posted Thu Oct 23 22:06:30 2014 Tags:

Pressure

I've just stumbled on this bit that seems relevant to me:

Insist on using objective criteria

The final step is to use mutually agreed and objective criteria for evaluating the candidate solutions. During this stage they encourage openness and surrender to principle not pressure.

http://www.wikisummaries.org/Getting_to_Yes

I find the concept of "pressure" very relevant, and I like the idea of discussions being guided by content rather than pressure.

I'm exploring the idea of filing under this concept of "pressure" most of the things described in code of conducts, and I'm toying with looking at gender or race issues from the point of view of making people surrender to pressure.

In that context, most code of conducts seem to be giving a partial definition of "pressure". I've been uncomfortable at DebConf this year, because the conference PG12 code of conduct would cause me trouble for talking about what lessons can Debian learn from consent culture in BDSM communities, but it would still allow situations in which people would have to yield to pressure, as long as the pressure was done avoiding the behaviours blacklisted by the CoC.

Pressure could be the phrase "you are wrong" without further explanation, spoken by someone with more reputation than I have in a project. It could be someone with the time for writing ten emails a day discussing with someone with barely the time to write one. It could be someone using elaborate English discussing with someone who needs to look up every other word in a dictionary. It could be just ignoring emails from people who have issues different than mine.

I like the idea of having "please do not use pressure to bring your issues forward" written somewhere, rather than spend time blacklisting all possible ways of pressuring people.

I love how the Diversity Statement is elegantly getting all this where it says: «We welcome contributions from everyone as long as they interact constructively with our community.»

However, I also find it hard not to fall back to using pressure, even just for self-preservation: I have often found myself in the situation of having the responsibility to get a job done, and not having the time or emotional resources to even read the emails I get about the subject. All my life I've seen people in such a situation yell "shut up and let me work!", and I feel a burning thirst for other kinds of role models.

A CoC saying "do not use pressure" would not help me much here, but being around people who do that, learning to notice when and how they do it, and knowing that I could learn from them, that certainly would.

If you can link to examples, I'd like to add them here.

Posted Tue Sep 23 16:18:22 2014 Tags:

Laptop, I demand that you suspend!

Dear Lazyweb,

Sometimes some application prevents suspend on my laptop. I want to disable that feature: how?

I understand that there may exist some people who like that feature. I, on the other hand, consider a scenario like this inconceivable:

  1. I'm on a plane working with my laptop, the captain announces preparations for landing, so I quickly hit the suspend button (or close the lid) on my laptop and stow it away.
  2. One connecting flight later, I pick up my backpack, I feel it unusually hot and realise that my laptop has been on all along, and is now dead from either running out of battery or thermal protection.
  3. I think things that, if spoken aloud in front of a pentacle, might invoke major lovecraftian horrors.

I do not want this scenario to ever be possible. I want my suspend button to suspend the laptop no matter what. If a process does not agree, I'm fine with suspending it anyway, or killing it.

If I want my laptop to suspend, I generally have a good enough real-world reason for it, and I cannot conceive that a software could ever be allowed to override my command.

How do I change this? I don't know if I should look into systemd, upowerd, pm-utils, the kernel, the display manager or something else entirely. I worry that I cannot even figure where to start looking for a solution.

This happened to me multiple times already, and I consider it ridiculous. I know that it can cause me data loss. I know that it can cause me serious trouble in case I was relying on having some battery or state left at my arrival. I know that depending on what is in my backpack, this could also be physically dangerous.

So, what knob do I tweak for this? How do I make suspend reliable?

Update

Systemd has an inhibitor system, and systemd-inhibit --list only lists 'delay' blocks in my system. It is an interesting feature that seems to be implemented in the right way, and it could mean that I finally can get my screen to be locked before the system is suspended.

It is possible to configure the inhibitor system in /etc/systemd/logind.conf, including ways to ignore inhibitors, and a maximum time after which inhibitors are ignored if not yet released.

Try as I might to run everything that I was running on the plane that time, I could not manage to see anything take an inhibitor block that could have prevented my suspend. I now suspect that what happened to me was a glitch caused by something else (hardware? kernel? cosmic rays!) during that specific suspend.

When I had this issue in the past it looks like the infrastructure at the time was far more primitive that what we have now with systemd, so I guess that when writing my blog post I had simply correlated my old experiences with a one-off suspend glitch.

If I want to investigate or tune further, to test the situation with a runaway block, I can use commands like systemd-inhibit --mode=block sleep 3600.

I'm quite happy to see that we're moving to a standard and sane system for this. In the meantime, I have learnt that pm-utils has now become superfluous and can be deinstalled, and so can acpi-support and acpi-support-base.

Thanks vbernat, mbiebl, and ah, on #debian-devel for all the help.

Posted Thu Sep 11 14:32:40 2014 Tags:

On relationships

Good relationships are like a good video game

with an easy, intuitive interface

and lots of interesting content.

(Lynoure)

Posted Wed Aug 6 16:47:40 2014 Tags:

Fear of losing

If I am afraid of breaking my laptop, then I may leave it at home, and it will be as if I didn't have a laptop.

If I am afraid of losing faith, then I may closely follow the dictates of the church. I will be keeping the church's faith, but not mine.

If I am afraid of losing my children, they may have to run away from me to be free to grow into adults.

If I am afraid of losing my inner child, then I might not expose it to the world, and so my inner child will never live. I will just be a box, a mask of what the world expects from me, that shelters and cages the Me that would like to live.

If I am afraid of losing you, then I may get obsessed with preserving the beautiful image I have of you. I may stop seeing, experiencing you as you live, think, grow. I may become afraid of your depth, of your being different each day, of your being alive. I may end up with cherishing a perfect image of you in my head, while you will have become a stranger to me.

I am really asking when I can accept answers.

I am really living when I can accept myself.

I am really loving when I can accept you.

Posted Mon Jun 16 09:21:52 2014 Tags:

Perfection

We like perfection.

Perfection is the ultimate achievement, there is nothing beyond.

Perfection is fully understood. It is not going to change, it is fact, we can rely upon it.

Perfection is final. Perfection is death.

Ideas can be perfect, and perfect ideas are easy to understand.

Perfect ideas are final and unchangeable. Perfect ideas are hard to correct, hard to refute.

Perfect ideas spread easily. They are helpful. They shed light on a little corner of our world, give it shape. They bring stability. They can be relied upon. Perfect ideas make good memes.

Perfect ideas are shared standards through which we act, interact, coordinate, cooperate. They don't change, so they are a solid base for habits, that make a bit of our life a little easier.

That we should not kill, is a perfect idea. So is racism. So are the ten commandments, so, for many, is love.

Thanks Lynoure for saying the right thing at the right time.

Posted Wed Jun 4 22:53:37 2014 Tags:

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