nc missing option -z
by Suvayu Ali
Hi,
I used to use netcat to check if a particular host is up or if I have
internet connection before I run a few scripts. I would use the -z
option in particular. But now I see that has been removed:
$ nc -z imap.gmail.com 993 && sync-my-email.sh
ncat: invalid option -- 'z'
Here is the excerpt from the old manual page:
-z Specifies that nc should just scan for listening daemons, without
sending any data to them. It is an error to use this option in
conjunction with the -l option.
Any ideas what happened to it? What can I use as replacement?
Thanks for any ideas.
--
Suvayu
Open source is the future. It sets us free.
2 years, 10 months
C/C++ Compiler Invalidly Turning Warnings into Errors?
by Stephen Morris
I have a driver for a wifi usb device that I need to compile because
there are no drivers in the kernel, which has been obtained from the
vendor of the device. When I attempt to compile the code the compile
fails on the grounds that some warnings are being translated into
errors. From my perspective these errors should not be happening
because, when a debugging module wants to time stamp the build, that is
not an error and is perfectly acceptable. How do I get the compiler to
stop producing these errors. The messages I get are listed below.
Authentication requested [root] for make driver:
make ARCH=x86_64 CROSS_COMPILE= -C
/lib/modules/3.17.8-300.fc21.x86_64/build
M=/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411
modules
make[1]: Entering directory '/usr/src/kernels/3.17.8-300.fc21.x86_64'
CC [M]
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_cmd.o
CC [M]
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_security.o
CC [M]
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.o
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:
In function ‘dump_drv_version’:
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:66:64:
error: macro "__DATE__" might prevent reproducible builds
[-Werror=date-time]
DBG_871X_SEL_NL(sel, "build time: %s %s\n", __DATE__, __TIME__);
^
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:66:1:
error: macro "__TIME__" might prevent reproducible builds
[-Werror=date-time]
DBG_871X_SEL_NL(sel, "build time: %s %s\n", __DATE__, __TIME__);
^
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:66:1:
error: macro "__DATE__" might prevent reproducible builds
[-Werror=date-time]
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:66:1:
error: macro "__TIME__" might prevent reproducible builds
[-Werror=date-time]
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:66:1:
error: macro "__DATE__" might prevent reproducible builds
[-Werror=date-time]
/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.c:66:1:
error: macro "__TIME__" might prevent reproducible builds
[-Werror=date-time]
cc1: some warnings being treated as errors
scripts/Makefile.build:257: recipe for target
'/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.o'
failed
make[2]: ***
[/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411/core/rtw_debug.o]
Error 1
Makefile:1377: recipe for target
'_module_/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411'
failed
make[1]: ***
[_module_/usr/local/downloads/dlink/RTL8812AU_linux_v4.3.2_11100.20140411/driver/rtl8812AU_linux_v4.3.2_11100.20140411]
Error 2
make[1]: Leaving directory '/usr/src/kernels/3.17.8-300.fc21.x86_64'
Makefile:1350: recipe for target 'modules' failed
make: *** [modules] Error 2
##################################################
Compile make driver error: 2
Please check error Mesg
##################################################
4 years, 3 months
Re: Why Fedora is for experts only?
by R. G. Newbury
gilpel(a)altern.org wrote:
> R. G. Newbury wrote:
>> > Even better are the stupid messes where there is NO default setting to
>> > change. Google 'kstartupconfig4 error 3' No-one, and I mean no-one knows
>> > what causes this, or how to fix it.
>
> It seems somebody at the Fedora Forum had the same problem and solved it:
>
> http://www.google.ca/search?hl=en&client=firefox-a&rls=org.mozilla%3Aen-U...
>
> http://minilien.com/?s9wh5OnNYI
>
> You might also want to try without the "Solved" keyword. There are more
> results and sometimes people forget to add "Solved".
>
>> > It is the lack of documentation which makes Fedora (and Mandriva, and
>> > Ubuntu) an OS for experts only.....
>
> It could indeed be better but geeks will always come up with the right
> keyworks and show you the solution was there, somewhere.
>
> It's easier to find the right keywords when you know the solution :)
I wasn't searching using "Solved" and the only keyword 'kstartupconfig4'
And *that* answer does not work. My home dir was already 'user:user'.
I have also confirmed the chcon context is now
'unconfined_u:object_r:user_home_dir_t:s0' for /home/user
And it doesn't work! Still get the error and no login.
Geoff
--
Please let me know if anything I say offends you.
I may wish to offend you again in the future.
Tux says: "Be regular. Eat cron flakes."
4 years, 3 months
Re: Why Fedora is for experts only?
by R. G. Newbury
On 07/24/2009 06:29 PM, gilpel(a)altern.org wrote
<snip>
> I'm trying to figure out what our great experts would lose if there was a
> pause for choosing the kernel. If they don't like this setting, they
> wouldn't have to use vi, just the Administration menu. All it takes is a
> few seconds and, thereafter, they would never have to suffer a pause when
> they reboot every six month.
>
> What's the name of the guy responsible for this mess? Can you imagine
> proselytizing Mac users and having to make sure they understand they will
> have to change a default setting, otherwise, they may be locked out of
> their system?
Even better are the stupid messes where there is NO default setting to
change. Google 'kstartupconfig4 error 3' No-one, and I mean no-one knows
what causes this, or how to fix it. (Well, if there IS a 'great expert'
who knows this, he's not talking). And what happens when you get this
error? You cannot log in as a normal user.
So I've been forced to log in as root for well over a month now on this
laptop. (Quick! Get the smelling salts! A grey-bearded pony-tailed guru
just fainted with an attack of the vapours!)
And the problem has existed since I "upgraded" to F11...I suspect it has
something to do with the fact that the /home partition was retained from
F10 and that the chcon context might have something to do with it, but
then, like pulseaudio, chcon has entirely too minimal a set of
documentation. And I didn't even know chcon existed until a week ago,
when it turned up as the possible source/answer to a completely
different question about httpd.
It is the lack of documentation which makes Fedora (and Mandriva, and
Ubuntu) an OS for experts only.....
Geoff
--
Please let me know if anything I say offends you.
I may wish to offend you again in the future.
Tux says: "Be regular. Eat cron flakes."
4 years, 3 months
Re: Ranter or evangelist?
by Antonio Olivares
--- On Thu, 7/23/09, gilpel(a)altern.org <gilpel(a)altern.org> wrote:
> From: gilpel(a)altern.org <gilpel(a)altern.org>
> Subject: Re: Ranter or evangelist?
> To: "Community assistance, encouragement, and advice for using Fedora." <fedora-list(a)redhat.com>
> Date: Thursday, July 23, 2009, 10:32 PM
> 'Tonio wrote:
>
> > Micro$oft is losing out to google, Twitter, Facebook
> and others. In a
> > last ditch effort. Micro$oft is releasing code
> to linux. Check out
> > this at distrowatch.
> >
> > http://distrowatch.com/weekly.php?issue=20090720
>
> Since Linux is strongon th server market, they want to
> attract them to
> Hyper-V, from what I've read. So?
>
> > BTW, Redhat also signed a deal with them, are they
> > really falling off
>
> Red Hat signed "a contract" and Suse signed "a contract",
> so Red Hat ans
> Suse are just the same for both signing "a contract".
>
> Which "a contract" have both companies signed?
>
> --
The stories about Microsoft releasing code, was more of a another way to cover up for a GPL violation :(
http://www.theregister.co.uk/2009/07/23/microsoft_hyperv_gpl_violation/
http://www.osnews.com/story/21882/Microsoft_s_Linux_Kernel_Code_Drop_Resu...
Not really because Micro$oft wants to help out a rival or a plague like Steve Ballmer once said. The truth comes out sooner or later.
Regards,
Antonio
4 years, 3 months
Re: Ranter or evangelist?
by Antonio Olivares
--- On Tue, 7/21/09, gilpel(a)altern.org <gilpel(a)altern.org> wrote:
> From: gilpel(a)altern.org <gilpel(a)altern.org>
> Subject: Re: Ranter or evangelist?
> To: "Community assistance, encouragement, and advice for using Fedora." <fedora-list(a)redhat.com>
> Date: Tuesday, July 21, 2009, 11:33 PM
> > On Tue, 2009-07-21 at 08:08
> +0500, gilpel(a)altern.org
> wrote:
> >> Excuse me for being rude
> >
> > No.
> >
> > Oh, and I'm middle-aged, and run a debt free
> business. Being doing so
> > for over twenty years. i.e. I live in the real
> world, and one that's
> > well managed.
> >
> > The one needing to get a clue, here, is you. You
> ONLY speak for
> > yourself, and opinions are NOT facts.
>
> I was just about to go to bed but this message kept
> haunting me. There's
> lots of truth in what you say here: why care about anything
> but the facts
> and be haunted by questions instead of facts? Sometimes I
> really wished I
> was like you...
>
> Microsoft has 90% of market share, Linux only 1% and people
> at Microsoft
> certainly are very glad. So, why should we be sad? Wouldn't
> this be giving
> Microsoft an edge in gladness?
>
> And if, tomorrow, Linux only has only .01% of the desktop
> market, would
> that be any reason to be sad? Of course not, since you and
> the codec geeks
> -- they'll undoubtedly be the last! -- will always hold the
> flag. So,
> you'll be glad not to be bothered by know-nothing like me
> and Microsoft...
> will they ever be glad!
>
> Once again, everybody will be glad. So why worry, be
> happy!
>
> Still, a last question keeps haunting me. No doubt, by now,
> since it's all
> well documented facts, you've read "From Microsoft Word to
> Microsoft
> World". In this document, Newman explains how, using its
> proprietary
> formats, Microsoft got rid of pretty much all competition.
> It brought
> every company to their knees, thn, bought and scrapped them
> one after the
> other.
>
> Of course, Microsoft can't play this game with Linux, since
> Linux uses...
> or tries to use open formats. Still, sometimes I wonder if,
> with all the
> money it has, Microsoft couldn't find a way to keep the cap
> on Linux. You
> know, keep it at an acceptable level of nuisance, say, 1%
> of market share
> after 18 years.
>
> Arrrgh! I'm afraid that's what I'll dream about tonight.
> What a pain I am,
> even to myself!
>
> --
Micro$oft is losing out to google, Twitter, Facebook and others. In a last ditch effort. Micro$oft is releasing code to linux. Check out this at distrowatch.
http://distrowatch.com/weekly.php?issue=20090720
I like comment 133. It sounds just about right. There are many nice comments there. BTW, Redhat also signed a deal with them, are they really falling off or are they the Borg that is portrayed in comment 133?
Regards,
Antonio
4 years, 3 months
Ranter or evangelist?
by gilpel＠altern.org
Why is it that, when I insert an audio disk, I see it as an audio disk on
my desktop, but when I click it, GNOME shows the .wav files that are
present. No application is suggested, even under "Open", to play the
damned music. If I go to Application, sound and video, the first option,
"Audio Player", opens XMMS.
Great! I click the forward button... I'm presented with a list of the...
no, no, no! not the files on the CD, but the files in my home directory!!!
Wow, we're really moving forward! I painfully navigate to /media, there's
nothing in /media.
Let's check mtab, my DVD/CD is on sr0, I believe. Nope, nothing there.
Well, if the intend was to scare away Mac and Windows users, I would think
that the success rate is 100%. I've been using Linux for 8 years and even
"I" am scared! I do understand Fedora is for geeks, but would it make
their life that difficult if things kinda worked? Didn't anybody notice
that the present set-up makes absolutely no sense?
At least, normally, you should go to => System, Preference, File
Management, Media to select a default CD and DVD player. Still impossible!
No option to change anything. I wrote about this. Nobody replied.
Who's responsible for setting things this way? Is anyboby responsible
somewhere or is it "We do all this together in a haphazard way" ? If so,
never expect any significant market share for Linux. Radio-Canada will
continue to use Windows Media because "Linux is too hard for ordinary
people" (MSFT trademark).
You think I'm a ranter? I've been told this quite often. But, while some
people write code, I write to the Quebec Press Council.
I explain that a certain so-called journalist is just a Microsoft
sycophant. Every time he used Windows Vista, of course, there were a
few... almost bugs. but certainly no show stopper.
With Linux, the question is more complex. When a new version of Firefox
comes out, for instance, instead of waiting for the upgrade, he gets the
executable at Mozilla and, then, everything gets really complicated.
Of course, the Press Concil understands perfectly what's going on. I made
sure my basic complaint was very easy to understand: I explained the
journalist NEVER discussed the appropriateness for the State --
television, amongst others -- of using proprietary format and never
discussed tied sales. That's it, that's all.
Still, after counceiding that the Press organisation lawyers had well
understood my POV, the Council judged that the journalist gives a lot of
coverage to Linux -- they didn't elabore on the kind of coverage: they
can't evaluate, of course -- and, you know, given that Linux hardly has 1%
of the market share, they found the coverage was adequate.
So, I filed an appeal... and sent a copy to the Professional Federation of
Journalists... I got my appeal.
But the fight is far from over. The Press Council is heavily subsidized by
the employer of said journalist, and Radio-Canada, another member of the
Microsoft club. Seeing subsidies vaporize scares the shit out of those
learned men: they could lose their precious jobs!
So, they'll try every trick in the book to give a very mild tone to their
judgement. But I have a few other tricks in my book to set the records
straight, though having the support from the Linux community would
certainly help.
Cause... do you really believe I got any help from local coders for this
fight? I got none, absolutely NONE. Why? Cause I'm a ranter. In other
words, though I am not a programmer, when I see things that are not done
correctly, I say so. They tell me I should fix the bugs.
Why is it that there are so many programmers and I can't even set a
default application for reading CD and DVDs? While I'm alone to do what I
consider my job, why is it that the whole community doesn't get its act
together to do such simple things?
Sometimes I wished I could proselytize in a more positive way. I'd like to
tell Apple users that Linux equals or surpasses OS X in user friendlyness,
but it doesn't. It was like this ten years ago, it is still like this now.
Countrary to what we could think from the success of Steve Jobs at the
helm of Apple, in the Linux world, the only people who count are
programmers. They'll fix things... soon.
But Linux is not so young anymore. After 18 years, it has 1% market share.
I believe there are some organizational bugs that need to be ironed out.
For now, from an administrative POV, Linux is a merry-go-round that
doesn't make much sense.
What do you say, am I a ranter or an evangelist? Is it good for Linux to
be ruled by programmers, the alternative not being necessarily the
marketing department? :)
Red Hat has some clout. How come they don't say "We want a music player
that first detects CD files and plays them" and accept to include them on
the default CD only on this condition?
Etc., etc., etc.
4 years, 3 months
Re: Ranter or evangelist?
by Jackson Byers
Tim wrote
>There's gnome-mplayer (there's probably a KDE variant), and smplayer, to
>try out, at least.
>I have used GUI programs like XMMS or Audacious to play streams, but
>sometimes you need to tweak the preferences, to increase cache sizing,
>to avoid skips. Totem is too much of a black box (not enough options to
>play with).
Before seeing above response,
I had just tried smplayer and it seems to be working well
no skips
smplayer -playlist xxxxxxxxx.pls
and it comes up with a small window that has volume slider and mute
just what i want..
I havent tried it yet to play audio dvd
Seems like I can remove Totem
Jack
4 years, 3 months
How do I switch mirror for rpmfusion?
by gilpel＠altern.org
I'm still having problems downloading from liberty.edu . Ex, installing
kdenlive:
Total download size: 13 M
Is this ok [y/N]: y
Downloading Packages:
(1/15): GraphicsMagick-1.1.14-4.fc11.x86_64.rpm | 2.4 MB 00:05
(2/15): dvdauthor-0.6.14-8.fc11.x86_64.rpm | 187 kB 00:00
(3/15): dvgrab-3.4-2.fc11.x86_64.rpm | 133 kB 00:01
(4/15): ffmpeg-0.5-2.fc11.x86_64.rpm | 160 kB 00:01
(5/15): ffmpeg-libs-0.5-2.fc11.x86_64.rpm | 2.5 MB 00:15
(6/15): imlib2-1.4.2-4.fc11.x86_64.rpm | 228 kB 00:01
(7/15): jack-audio-connection-kit-0.116.1-5.fc11.x86_64. | 203 kB 00:01
(8/15): jack-audio-connection-kit-example-clients-0.116. | 42 kB 00:00
(9/15): kdenlive-0.7.4-2.fc11.x86_64.rpm | 2.6 MB 00:15
(10/15): libfreebob-1.0.11-5.fc11.x86_64.rpm | 160 kB 00:01
(11/15): mlt-0.4.2-1.fc11.x86_64.rpm | 144 kB
00:30 ...
http://mirror.liberty.edu/pub/rpmfusion/free/fedora/updates/11/x86_64/mlt...:
[Errno 4] Socket Error: timed out
Trying other mirror.
(11/15): mlt-0.4.2-1.fc11.x86_64.rpm | 3.4 MB 00:09
(12/15): openjpeg-libs-1.3-4.fc11.x86_64.rpm | 66 kB 00:00
(13/15): recordmydesktop-0.3.8.1-1.fc11.x86_64.rpm | 65 kB 00:00
(14/15): schroedinger-1.0.6-1.fc11.x86_64.rpm | 233 kB 00:01
(15/15): sox-14.2.0-2.fc11.x86_64.rpm | 458 kB
00:02
----------------------------------------------------------------------------------------
Total 137 kB/s | 13 MB
01:35
I very often get those "Socket Error: timed out" interruptions. How do I
switch mirror for rpmfusion?
4 years, 3 months
