heap now randomized in f29?
by Tom Horsley
Did fedora 29 just start building kernels with heap
address randomization turned on by default? I don't
remember seeing random heap addresses in previous
versions of fedora.
Plays hob with debugging when you try to recreate
problems from one run to the next and objects move
around in the heap so you can't count on seeing the
same data structures.
(Of course the security freaks see no difference between
trying to hack into code and trying to debug code
since the objective is near identical till you get to
the last step :-).
5 years, 6 months
App similar Winhex for Fedora
by Joerg Lechner
Hi,
because of the problem, which I have described in the thread "problem file copy to external disk" I would like analyse file headers on a NTFS formatted disk with F28/F29. I think on Windows Winhex is the app. Which app can I use with F28/F29?
Your answer will be very helpful.
Kind regards
5 years, 6 months
mate and Xfce
by ToddAndMargo
Hi All,
Is it possible to install both Mate and Xfce?
How and how do I switch back and ofrth. Xfce
is already installed
Many thanks,
-T
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A computer without Microsoft is like
a chocolate cake without the mustard
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 years, 6 months
boot resolution - fedora 29
by PropAAS DBA
Hi All;
I'm trying to change boot screen and login screen resolution.
I added these lines to my /etc/default/grub file:
GRUB_GFXMODE='1280x1024x32;1280x1024x24;1280x800x32;1280x800x24;1280x768x32;1280x768x24;800x600x24;auto'
GRUB_GFXPAYLOAD_LINUX=keep
Then I ran:
grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
I also have this entry in my /etc/X11/xorg.conf file:
Section "Screen"
Identifier "Default Screen"
SubSection "Display"
Modes "1368x768_60.00"
# Modes "960x720"
EndSubSection
EndSection
Thanks in advance...
5 years, 6 months
SELinux sandboxing of native Wayland clients
by Joachim Frieben
SELinux sandboxing of X-based web browsers like standard Firefox using 'sandbox -X -t sandbox_web_t ..' is common and appears to works well now. I wonder whether GNOME Web (epiphany) admits a similar approach without the awkward construction of enforcing the X backend via GDK_BACKEND=x11 and running it like before in an X sandbox. I tend to assume that appropriate SELinux rules have not been implemented yet. Is this correct?
Note: I am only asking about SELinux sandboxing, not about using containers or virtual machines which are alternative approaches.
5 years, 6 months
Re: no hdmi audio on older tv
by Jiri Vanek
So this is getting more and more funny.
None of your recommendations helped:(( bwd luck, bad thak you a lto anyway for brainstromign.
I borrowed one of the hdmi->Vga+jack boxes (I think it isi this one:
https://iczc.cz/dkqm7qdad2hnra334bu7igbro5_7/obrazek) and....
Now fedora have audio, and raspbian no:D
Considering how hdmi protocol works, I really think that fedroa simply tries newer communication
first (where to change this?) , but fallbeack do not work. And raspbian is trying older
communication first, and fails to upgrade the communication.
Obviously there is some little green goblin in the middle of the way in HDMI :(
On 11/1/18 8:02 PM, stan wrote:
> On Thu, 1 Nov 2018 13:55:53 +0100
> Jiri Vanek <jvanek(a)redhat.com> wrote:
>
>> sudo dnf downgrade kernel
>> Last metadata expiration check: 2 days, 19:55:43 ago on Mon 29 Oct
>> 2018 05:55:23 PM CET. Package kernel of lowest version already
>> installed, cannot downgrade it. same for alsa*
>>
>> I failed to updte kernel. at least Network stopped working:(
>
> Here is the last 4.17 kernel for f29,
>
> https://koji.fedoraproject.org/koji/buildinfo?buildID=1088633
>
> You can try a *newer* kernel, the latest 4.18 kernel, 4.18-16
>
> https://koji.fedoraproject.org/koji/buildinfo?buildID=1154877
>
> or the first 4.19 kernel for 4.30. It should work just fine on f29, I
> think, since I have been compiling it and running it on f28.
I was allready told that for rPI rawhide is bringing many positive changes. So this may be one of
those. Will try later in the development cycle.
>
> https://koji.fedoraproject.org/koji/buildinfo?buildID=1155120
>
> Is there a reason you are using the 4.18-12 kernel?
Nothing particular. It was in stablw when I preapred the baord, and next udpate break networking. So
I turned back.
>
> Have you tried updating your system from the repositories since install?
>
> Here is an older version of alsa you can try. There were two updates
> of alsa only for f29 and f30 after this, so it is a possible difference
> from f28.
>
> https://koji.fedoraproject.org/koji/buildinfo?buildID=1106034
>
> Download the binary rpms for the packages you have installed, then from
> the directory where they are type, as root,
>
> dnf -C downgrade [list of rpms]
>
> If this doesn't solve your problem, I'm stumped. You should have sound.
>
thanx a lot!
J.
5 years, 6 months
run perl script to configure remote computer using sudo
by D&R
I have tried several ways to connect to remote computer:
$SERVER = qx{ssh -o ConnectTimeout=2 -o ControlPersist=yes $user\@$server
"sudo hostname| cut -d "." -f1"}; chomp ($SERVER);
but commands that have metacharacters, especially the single quote, I can not
get to work.
I can run the following from perl after ssh connection with single quotes
included:
$ssh = Net::OpenSSH->new("$user\@$server");
$CMD = "grep -c alias cp='cp -f' /etc/bashrc";
$fh = $ssh->pipe_out($CMD);
while (<$fh>) {
$OUTPUT .= $_;
}
chomp ($OUTPUT);
and it works.
But if add 'sudo' for cases where I need to read a file that the login user
does not have permissions for -- I can not get it to work.
I have searched and tried a number of recommendations and it either fails with
a permission error or locks up or gives grep errors.
Thanks in advance,
David
5 years, 6 months
Fedora 29 install on Dell Precision 5530 with Quadro P2000
by jeandet
Hello,
I installed Fedora 29 on a Dell Precision 5530, the live system worked
perfectly!
But after reboot the installed system was unstable, freezes few
seconds after login to the point that it was impossible to do anything.
Even switching virtual console was impossible.
After booting in mutli-user mode I discover that this was due to the
Quadro P2000, I was able to solve the problem installing nvidia's
proprietary drivers through ssh.
So my point is, is that an installer bug? I mean if the live system is
stable, shouldn't the installed system work exactly the same way?
If yes, then against which component should I open a bug report?
I have the feeling that installing nvidia driver in "text" mode is not
possible/easy for new users while Dell Laptops are known to support
Linux out of the box. This may prevent new users to install(without
help) Fedora on such devices.
The other sad point is that, at least for my organization, we can't buy
this machine without Nv GPU...
Best regards,
Alexis.
5 years, 6 months
rsyslog, syslog-ng and journald all at the same time?
by Robert P. J. Day
was poking around logging and just now noticed that, on my fedora 29
system, both of rsyslog and syslog-ng (and, i'm assuming systemd
journalling) are running at the same time. is that normal? i don't
recall ever messing with installing additional logging packages, but
maybe i did and just don't remember.
in any event, does that configuration even make sense? can all three
of those logging services co-exist? or must i have done something
weird and illogical at some point to get into this situation?
rday
--
========================================================================
Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca/dokuwiki
Twitter: http://twitter.com/rpjday
LinkedIn: http://ca.linkedin.com/in/rpjday
========================================================================
5 years, 6 months
