Re: color display with man pages

[Amila Perera]

Thank you Jatin.

I knew 'most' would work.
It is able to display colours as well.

But I am used to 'less' and its key bindings.

I am quite puzzled as why the termcap settings for less don't work in
Fedora20.

Do you have any explanations??

Just a few hours ago I installed CentOS 7 and it worked fine there too with
KDE.
Do you know any sort of workaround to this problem??


On Tue, Jul 22, 2014 at 10:24 AM, Jatin K  wrote:

>  On Monday 21 July 2014 11:42 PM, Amila Perera wrote:
>
>  Hi all,
>
>  This is my first mail on fedora mailing list.
>
>  I can't get the following to display colours with LESS command on my
> terminal,
> when viewing man pages.
> I am using Fedora 20 with KDE. My shell is zsh.
> ---
> man()
>  {
>  env LESS_TERMCAP_mb=$'\E[01;31m' \
>  LESS_TERMCAP_md=$'\E[01;34m' \
>  LESS_TERMCAP_me=$'\E[0m' \
>  LESS_TERMCAP_se=$'\E[0m' \
>  LESS_TERMCAP_so=$'\E[01;33;40m' \
>  LESS_TERMCAP_ue=$'\E[0m' \
>  LESS_TERMCAP_us=$'\E[01;04;35m' \
>  man "$@"
> }
>
>
> have you tried "most" ..??
>
> try following
>
> yum install most
>
> export PAGER="most"
>
> or
>
> export PAGER="/usr/bin/most -s"
>
> now try to viewing man for any command
>
> say
>
> man date
>
>
> 
>
>
>
>
>
>
> Warm Regards
>
> --
>_
>   °v°
>  /(_)\
>   ^ ^  Jatin Khatri
> RHCSA,RHCE,CCNA,MCP
> Registerd Linux user No #501175www.linuxcounter.net
> No M$
>
>
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Re: color display with man pages

[Jatin K]

On Monday 21 July 2014 11:42 PM, Amila Perera wrote:

Hi all,

This is my first mail on fedora mailing list.

I can't get the following to display colours with LESS command on my 
terminal,

when viewing man pages.
I am using Fedora 20 with KDE. My shell is zsh.
---
man()
{
env LESS_TERMCAP_mb=$'\E[01;31m' \
LESS_TERMCAP_md=$'\E[01;34m' \
LESS_TERMCAP_me=$'\E[0m' \
LESS_TERMCAP_se=$'\E[0m' \
LESS_TERMCAP_so=$'\E[01;33;40m' \
LESS_TERMCAP_ue=$'\E[0m' \
LESS_TERMCAP_us=$'\E[01;04;35m' \
man "$@"
}



have you tried "most" ..??

try following

yum install most

export PAGER="most"

or

export PAGER="/usr/bin/most -s"

now try to viewing man for any command

say

man date









Warm Regards

--
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  °v°
 /(_)\
  ^ ^  Jatin Khatri
RHCSA,RHCE,CCNA,MCP
Registerd Linux user No #501175
www.linuxcounter.net
No M$

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Re: Figuring out a headless server's zeroconf addr

[Ed Greshko]

On 07/21/14 22:55, Robert Moskowitz wrote:
> I have a headless system that I cannot connect to.  So I was thinking to put 
> a direct connection to it and my notebook.  Both ethernets would use the 
> zeroconf (169.254.0.0/16) addresses.  I could then use fping
>
> fping -g 169.254.0.0/16
>
> And SHOULD be able to get its address, and then SSH into the box.
>
> Any other thoughts?  I can't get to the box to recable it and reboot it (as 
> that is the only way I can figure out for it to readdress eth0) until this 
> evening. 

To turn on zeroconf you need to modify the link to use BOOTPROTO=autoip.  
(Shows as "Local-Link" in the nm gui)

You'll then have something along the lines of...

[egreshko@f20f ~]$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric RefUse Iface
169.254.0.0 0.0.0.0 255.255.0.0 U 0  00 p2p1
224.0.0.0   0.0.0.0 240.0.0.0   U 1  00 p2p1

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Re: Figuring out a headless server's zeroconf addr

[Tim]

On Mon, 2014-07-21 at 12:34 -0400, Robert Moskowitz wrote:
> I have considerable routing and addressing knowledge.  Besides being 
> one of the authors of rfc 1918, and worked on CIDR, here at IETF I 
> contribute to ipv6ops and ipv6man.

Sorry, didn't mean to impune you, but I don't remember who's done what,
so I just took the easy route of asking the obvious question.

The other thing that occurred to me, much later, was zeroconf probably
requires broadcasting to be allowed through the firewall, so that
clients can announce themselves, and the rest can notice their arrival.

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All mail to my mailbox is automatically deleted, there is no point trying
to privately email me, I will only read messages posted to the public lists.

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Re: [F20, KDE] color profile applied 1 s and then disappears

[Tim]

On Mon, 2014-07-21 at 13:48 -0600, Chris Murphy wrote:
> Most manufacturer supplied ICC profiles are junk. a.) Frequently
> aren't made correctly; b.) don't actually describe the display's
> behavior better than the colord created on based on EDID primaries,
> often worse.

Considering that you can connect several, allegedly, identical monitors
to view the same image simultaneously, and get glaringly obvious
differences between each monitor, I'm not surprised.

There's a very wide tolerance in electronics, including the actual
display, as well as what drives it.  You really need profiles to be a
measurement of the actual display that you're using, taking into account
its user-settings and your room lighting.

-- 
tim@localhost ~]$ uname -rsvp

Linux 3.14.8-200.fc20.i686 #1 SMP Mon Jun 16 22:36:56 UTC 2014 i686

All mail to my mailbox is automatically deleted, there is no point trying
to privately email me, I will only read messages posted to the public lists.

George Orwell's '1984' was supposed to be a warning against tyranny, not
a set of instructions for supposedly democratic governments.

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Re: vncserver not providing gnome desktop

[Michael D. Setzer II]

On 21 Jul 2014 at 23:33, Robert Moskowitz wrote:

Date sent:  Mon, 21 Jul 2014 23:33:43 -0400
From:   Robert Moskowitz 
To: Community support for Fedora users 

Subject:vncserver not providing gnome desktop
Send reply to:  Community support for Fedora users 


> Progress made.  In the end I had to get IPv4 addressing working, as
> VNC only understands IPv4.
> 
> I am connecting over the crossover cable to the headless system via
> vnc, but the screen just shows the little action box on the upper left
> and nothing else.
> 
> I have edited the service file and added the geometry line option and
> reloaded the deamons.  No change.
> 
> I edited the xstartup file as I always do to exec gnome, but nope.
> 
> 
> I am missing something here.  Obviously...
> 
> any tips are greatly appreciated.
>
Below is the xstartup file that I use. I changed it to use xfce since there 
were 
some gnome processes that were using very high cpu percentages. The 
original values of the xinitrc and twm are commented.


#!/bin/sh

# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
exec  /bin/sh /etc/xdg/xfce4/xinitrc #   X11/xinit/xinitrc

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
#vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
startxfce4 &
#twm &
 
> 
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+--+

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Re: vncserver not providing gnome desktop

[Ed Greshko]

On 07/22/14 11:33, Robert Moskowitz wrote:
> Progress made.  In the end I had to get IPv4 addressing working, as VNC only 
> understands IPv4.
>
> I am connecting over the crossover cable to the headless system via vnc, but 
> the screen just shows the little action box on the upper left and nothing 
> else.
>
> I have edited the service file and added the geometry line option and 
> reloaded the deamons.  No change.
>
> I edited the xstartup file as I always do to exec gnome, but nope.
>
>
> I am missing something here.  Obviously...
>
> any tips are greatly appreciated. 


As far as the $USER/.vnc/xstartup  I've never edited it to start gnome, it just 
does it by default.  I suppose you can try deleting the file and have it 
recreated the next time the server is started.

FWIW, I do edit $USER/.vnc/xstartup to change the lines with

exec /etc/X11/xinit/xinitrc

to

exec /home/user/.xinitrc

and I create a /home/user/.xinitrc containing

exec ck-launch-session dbus-launch --exit-with-session startkde

to give me a KDE desktop.

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vncserver not providing gnome desktop

[Robert Moskowitz]

Progress made.  In the end I had to get IPv4 addressing working, as VNC 
only understands IPv4.


I am connecting over the crossover cable to the headless system via vnc, 
but the screen just shows the little action box on the upper left and 
nothing else.


I have edited the service file and added the geometry line option and 
reloaded the deamons.  No change.


I edited the xstartup file as I always do to exec gnome, but nope.


I am missing something here.  Obviously...

any tips are greatly appreciated.


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Re: hbk file

[Robin Laing]

On 2014-07-17 16:59, Kostas Sfakiotakis wrote:


On 07/18/2014 01:30 AM, Patrick O'Callaghan wrote:

 >
 > od is one of those basic Unix/Linux utilities that's always there
 > but that people using DEs tend to forget about. "man od" for more.


Thanks for pointer , i found od

I tried "od --strings" and "od -t c" but neither returned something
understandable .


Best result i have had so far was to upload the hbk back to my cell
phone and then
back it up with another application that would export the data i wanted
in another
format ( Play Store  did a pretty nice work there ) . Then things were
much simpler since
i could read the sms even with vi ( nano , KWrite , whatever editor )







As this is a backup file, I wonder if the file is a compressed file. 
Try the various unzip, bzip or other programs to decompress it.  Just a 
thought as many backup systems will compress the backups.


From what I see, it is a closed HTC file format and another example of 
why we should only use OPEN file formats.  Try contacting HTC.




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Re: new kernels & rebooting

[Joe Zeff]

On 07/21/2014 01:26 PM, Heinz Diehl wrote:

On 21.07.2014, Paul Cartwright wrote:


you say to put it in /usr/src. Can I put it in a spare partition that
has more space?? does it need to be in /usr/src??


You can most probably have it where you want it to. If something
expects it to be in /usr/src, you can create a symlink.



If you really need to put it on a spare partition, you can always move 
everything there from /usr/src and then mount that partition at /usr/src 
and go from there.

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Re: running vncserver via systemctl on Fedora 20

[Ed Greshko]

On 07/22/14 03:33, Robert Moskowitz wrote:
> I have run vncserver for years, naturally as 'service vncserver start'.  But 
> now it is all systemd and systemctl.  Fine.  So I think I have to configure 
> it for my user, as I always use to edit /etc/sysconfig/vncserver with:
>
> VNCSERVERS="2:alice 3:bob"
>
> So I found I had to:
>
> cp /lib/systemd/system/vncserver@.service 
> /etc/systemd/system/vncserver@.service
>
> but I could not figure out what I needed to edit in this file.  So I tried to 
> start the service with:
>
> systemctl start vncserver
>
> And got:
>
> Failed to issue method call: Unit vncserver.service failed to load: No such 
> file or directory.
>
>
> So what am I missing?
>
> Also in ~/.vnc/xstartup I changed the execute to:
>
> exec gnome-session &
>
> But the xstartup is created the first time I would start the server...
>
> So things are really working differently and I would appreciate some pointers.
>
> thanks
>
>

First of all   If you have a fresh install of F18(maybe F17) and above 
you'd find

[root@f20f sysconfig]# cat /etc/sysconfig/vncservers
# THIS FILE HAS BEEN REPLACED BY /lib/systemd/system/vncserver@.service

The point being, that file isn't used any longer.

Have you tried simply following the instructions in 
/lib/systemd/system/vncserver@.service ?

# Quick HowTo:
# 1. Copy this file to /etc/systemd/system/vncserver@.service
# 2. Edit  and vncserver parameters appropriately
#   ("runuser -l  -c /usr/bin/vncserver %i -arg1 -arg2")
# 3. Run `systemctl daemon-reload`
# 4. Run `systemctl enable vncserver@:.service`

Works for me

Now, you'll have to multiple unique /etc/systemd/system/vncserver files to 
enable different users and ports.

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Re: dnf failed where yum succeeded

[JD]

Thax Chris.
Bug submitted along with debugdata.


On Mon, Jul 21, 2014 at 1:54 PM, Chris Murphy 
wrote:

> You have 90% of information for a bug report against dnf. However, before
> actually permitting yum to proceed with the installation, first you should
> change the dnf command:
>
> dnf -y --debugsolver install amd
>
> Then tar the resulting debugdata folder in the current directory, and
> include that as a bug attachment.
>
>
> Chris Murphy
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Re: running vncserver via systemctl on Fedora 20

[Michael D. Setzer II]

On 21 Jul 2014 at 15:33, Robert Moskowitz wrote:

Date sent:  Mon, 21 Jul 2014 15:33:39 -0400
From:   Robert Moskowitz 
To: users@lists.fedoraproject.org
Subject:running vncserver via systemctl on Fedora 20
Send reply to:  Community support for Fedora users 






> I have run vncserver for years, naturally as 'service vncserver
> start'.  But now it is all systemd and systemctl.  Fine.  So I think I
> have to configure it for my user, as I always use to edit
> /etc/sysconfig/vncserver with:
> 
> VNCSERVERS="2:alice 3:bob"
> 
> So I found I had to:
> 
> cp /lib/systemd/system/vncserver@.service 
> /etc/systemd/system/vncserver@.service
> 
> but I could not figure out what I needed to edit in this file.  So I
> tried to start the service with:
> 
> systemctl start vncserver
> 
> And got:
> 
> Failed to issue method call: Unit vncserver.service failed to load: No
> such file or directory.
> 
> 
> So what am I missing?
> 
> Also in ~/.vnc/xstartup I changed the execute to:
> 
> exec gnome-session &
> 
> But the xstartup is created the first time I would start the server...
> 
> So things are really working differently and I would appreciate some
> pointers.
> 
> thanks
> 

I found it easier to user rc.local to start the sessions 
runuser -l user -c 'vncserver :port geometry 1280x1024'
where user is the user id, and port is the port you want to user it on.
The systemctl requires you to copy the file with the :port added, and then you 
have to modify it with the users name.

I also tried running boinc via systemctl, and it would start, but they would 
only 
run at about 33% of the cpu, whereas running them directly would use 98% 
or higher. 

You do have to create the /etc/rc.d/rc.local file, and make sure the service is 
running, since it isn't by default.


> 
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+--+
  Michael D. Setzer II -  Computer Science Instructor  
  Guam Community College  Computer Center  
  mailto:mi...@kuentos.guam.net
  mailto:msetze...@gmail.com
  http://www.guam.net/home/mikes
  Guam - Where America's Day Begins
  G4L Disk Imaging Project maintainer 
  http://sourceforge.net/projects/g4l/
+--+

http://setiathome.berkeley.edu (Original)
Number of Seti Units Returned:  19,471
Processing time:  32 years, 290 days, 12 hours, 58 minutes
(Total Hours: 287,489)

BOINC@HOME CREDITS
ROSETTA 17875371.077265   |   SETI29536891.845165
ABC 16613838.513356   |   EINSTEIN28547237.391636

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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 04:26 PM, Heinz Diehl wrote:
> You can most probably have it where you want it to. If something
> expects it to be in /usr/src, you can create a symlink.
what is it I am symlinking?? the actual kernel??

-- 
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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, Tom H wrote: 

> The method that I suggested is right 

There's no "wrong" or "right". It's just one way to do it (not mine).
But of course, it can be the way for others. It's perfectly fine to build a
kernel by using rpm an manage it using yum, but it's not what I
prefer.

> because (and I made a mistake earlier and shouldn't have suggested 
> that you use rpm) you can install your kernel with "yum install ..."
>  and remove it with "yum remove ..."
> - and use it on more than one system if necessary.

I install my kernel using "make install", and remove it by deleting
the sourcetree, kernel & co. in /boot and its modules in
/lib/modules/. It's what fits best for me.

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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, Paul Cartwright wrote: 

> you say to put it in /usr/src. Can I put it in a spare partition that
> has more space?? does it need to be in /usr/src??

You can most probably have it where you want it to. If something
expects it to be in /usr/src, you can create a symlink.

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Re: running vncserver via systemctl on Fedora 20

[Robert Moskowitz]

I am making some headway.  My normally weak search foo came up with

http://zeusville.wordpress.com/2012/01/27/setting-up-vncserver-on-fedora-16/

Still almost as confusing as I started.  Particularly if I want more 
than one userid to be able to use vncserver.


On 07/21/2014 03:33 PM, Robert Moskowitz wrote:
I have run vncserver for years, naturally as 'service vncserver 
start'.  But now it is all systemd and systemctl.  Fine.  So I think I 
have to configure it for my user, as I always use to edit 
/etc/sysconfig/vncserver with:


VNCSERVERS="2:alice 3:bob"

So I found I had to:

cp /lib/systemd/system/vncserver@.service 
/etc/systemd/system/vncserver@.service


but I could not figure out what I needed to edit in this file.  So I 
tried to start the service with:


systemctl start vncserver

And got:

Failed to issue method call: Unit vncserver.service failed to load: No 
such file or directory.



So what am I missing?

Also in ~/.vnc/xstartup I changed the execute to:

exec gnome-session &

But the xstartup is created the first time I would start the server...

So things are really working differently and I would appreciate some 
pointers.


thanks




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Re: dnf failed where yum succeeded

[Chris Murphy]

You have 90% of information for a bug report against dnf. However, before 
actually permitting yum to proceed with the installation, first you should 
change the dnf command:

dnf -y --debugsolver install amd

Then tar the resulting debugdata folder in the current directory, and include 
that as a bug attachment.


Chris Murphy
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Re: [F20, KDE] color profile applied 1 s and then disappears

[Chris Murphy]

On Jul 17, 2014, at 1:21 PM, Frédéric Bron  wrote:

> I installed a color profile for my LCD monitor.

Where did it come from? Most manufacturer supplied ICC profiles are junk. a.) 
Frequently aren't made correctly; b.) don't actually describe the display's 
behavior better than the colord created on based on EDID primaries, often worse.


> When I start KDE, the
> correct profile is applied but 1second later, it is disabled. I see
> that because the background picture changes dramatically. Why?

Can you see anything in the journal at the time of starting KDE and subsequent 
disabling?

In a shell use journalctl -f, and then in a separate shell start KDE and note 
anything in the "journal following" shell if there's anything related at the 
time the profile is disabled.

What do you get for?
colormgr get-devices


Chris Murphy

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running vncserver via systemctl on Fedora 20

[Robert Moskowitz]

I have run vncserver for years, naturally as 'service vncserver start'.  
But now it is all systemd and systemctl.  Fine.  So I think I have to 
configure it for my user, as I always use to edit 
/etc/sysconfig/vncserver with:


VNCSERVERS="2:alice 3:bob"

So I found I had to:

cp /lib/systemd/system/vncserver@.service 
/etc/systemd/system/vncserver@.service


but I could not figure out what I needed to edit in this file.  So I 
tried to start the service with:


systemctl start vncserver

And got:

Failed to issue method call: Unit vncserver.service failed to load: No 
such file or directory.



So what am I missing?

Also in ~/.vnc/xstartup I changed the execute to:

exec gnome-session &

But the xstartup is created the first time I would start the server...

So things are really working differently and I would appreciate some 
pointers.


thanks


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Re: new kernels & rebooting

[Tom H]

On Mon, Jul 21, 2014 at 3:22 PM, Paul Cartwright  wrote:
> On 07/21/2014 03:19 PM, Tom H wrote:
>>
>> You'd still be able to use your config - the first step 5.
>>
>> The method that I suggested is right because (and I made a mistake
>> earlier and shouldn't have suggested that you use rpm) you can install
>> your kernel with "yum install ..." and remove it with "yum remove ..."
>> - and use it on more than one system if necessary.
>
> not sure what the steps are to reproduce what you are talking about..
> how do you make a ... kernel.rpm

From "make help":

Kernel packaging:
  rpm-pkg - Build both source and binary RPM kernel packages
  binrpm-pkg  - Build only the binary kernel package
  deb-pkg - Build the kernel as a deb package
  tar-pkg - Build the kernel as an uncompressed tarball
  targz-pkg   - Build the kernel as a gzip compressed tarball
  tarbz2-pkg  - Build the kernel as a bzip2 compressed tarball
  tarxz-pkg   - Build the kernel as a xz compressed tarball
  perf-tar-src-pkg- Build perf-3.15.2.tar source tarball
  perf-targz-src-pkg  - Build perf-3.15.2.tar.gz source tarball
  perf-tarbz2-src-pkg - Build perf-3.15.2.tar.bz2 source tarball
  perf-tarxz-src-pkg  - Build perf-3.15.2.tar.xz source tarball
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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 03:19 PM, Tom H wrote:
> You'd still be able to use your config - the first step 5.
>
> The method that I suggested is right because (and I made a mistake
> earlier and shouldn't have suggested that you use rpm) you can install
> your kernel with "yum install ..." and remove it with "yum remove ..."
> - and use it on more than one system if necessary.
> -- 
not sure what the steps are to reproduce what you are talking about..
how do you make a ... kernel.rpm

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Re: new kernels & rebooting

[Tom H]

On Mon, Jul 21, 2014 at 2:17 PM, Heinz Diehl  wrote:
> On 21.07.2014, Tom H wrote:
>
>> You'd be better off replacing the second step 5 by "make rpm-pkg" and
>> the last step 5 and step 6 by "rpm -i ...".
>
> No, I wouldn't. My .config is highly customized, and the way I
> described just fits my needs perfectly. I'm quite aware of the
> possibility to build a kernel via rpm, but I don't want to do that.
>
> Just to make it clear: what I described is just what I do and have
> done.  There's more than one way to do it. There's no "wrong" or
> "right".

You'd still be able to use your config - the first step 5.

The method that I suggested is right because (and I made a mistake
earlier and shouldn't have suggested that you use rpm) you can install
your kernel with "yum install ..." and remove it with "yum remove ..."
- and use it on more than one system if necessary.
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Re: Figuring out a headless server's zeroconf addr

[Robert Moskowitz]

On 07/21/2014 02:19 PM, Fernando Gozalo wrote:

Hi,


So given ipv6 local-scope, how do I learn the other system's addr.


According to http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/x1162.html

ip -6 neigh show


Oow.  that works!  Will note that down for next time!

thanks


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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 02:47 PM, Heinz Diehl wrote:
>> my / file system ran out of space. I had 5.8Gb free before I started this..
> Your root partition is way too small for kernel development. 
that would be something to take into consideration... I thought 5.8Gb of
free space is PLENTY..
you say to put it in /usr/src. Can I put it in a spare partition that
has more space?? does it need to be in /usr/src??

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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, Paul Cartwright wrote: 

> my / file system ran out of space. I had 5.8Gb free before I started this..

Your root partition is way too small for kernel development. 

[root@kiera src]# du -ch linux-3.15.6-rc1
[]
4.1G total

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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, Marko Vojinovic wrote: 

> What is the purpose of installing a non-Fedora kernel, in your case?

Coming from SLS, slackware and yggdrasil way back in time, it's how it 
has been for me all the time. I have my configs, scripts and so
on. I kept them over time, and they just work :-)

> Also, when the new security/bugfix patches land into the kernel tree, do
> you recompile it again, or what?

Most of the time, I recompile when a new stable rc hits
kernel.org. Quite often, the rc doesn't differ from the release, or it
differs in parts which doesn't affect me. So I'm just keeping the rc,
being too lazy to recompile :-)
  
> How much time do you devote to kernel maintenance, on a monthly basis?

I don't know. Sometimes it's more, sometimes less. I just copy my
things over, read lkml as usual, and let the machine do the job.

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Re: NFS Performance Woes

[Peter Skensved]

> 
> 
> On 07/21/14 19:59, Ian Chapman wrote:
> > Nfsstat, wireshark and the system logs do not show anything which screams 
> > there's a problem.
> >
> > The network card in the client machine and the server shows no collisions, 
> > dropped packets, frame overruns etc.
> >
> > I've tested with the export that isn't using Kerberos and still have the 
> > same issue. Messing with the rsize, wsize, async, sync parameters makes no 
> > difference either.
> >
> > The server has 32GB RAM, the client 16GB.
> >
> > For all intents and purpose it looks like its working as it should, it's 
> > just painfully slow.
> >
> > Any NFS gurus out there, that can tell me what I'm doing wrong? 
> 
> I've been using NFSv4 extensively for several years and I've not had an issue 
> that you
> describe where everything is fine and then suddenly performance goes to hell 
> in a hand basket. 
> 
> It sounds as if you only have 2 systems to work with?  No, tiebreaker so to 
> speak?
> 
> Have you considered running a VM on your client system to see if it is 
> affected in the same way?
> 


  DNS problems can do it . Are your /etc/resolv.conf files correct ?
You could try running your own nameserver ( dnsmasq ) if the upstream
one is too slow or too busy.

peter
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Re: Figuring out a headless server's zeroconf addr

[Fernando Gozalo]

Hi,

> So given ipv6 local-scope, how do I learn the other system's addr.


According to http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/x1162.html

ip -6 neigh show


Regards,
Fernando.



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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, Tom H wrote: 

> You'd be better off replacing the second step 5 by "make rpm-pkg" and
> the last step 5 and step 6 by "rpm -i ...".

No, I wouldn't. My .config is highly customized, and the way I
described just fits my needs perfectly. I'm quite aware of the
possibility to build a kernel via rpm, but I don't want to do that.

Just to make it clear: what I described is just what I do and have
done.  There's more than one way to do it. There's no "wrong" or
"right".

 
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Re: dnf failed where yum succeeded

[Jan Zeleny]

-- snip --

May I ask why did you send such email instead of filing a bug report? If you 
read the dnf FAQ, cleaned the cache and everything, you can go right ahead. 
The dnf developers are very responsive in the bugzilla.

Jan
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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 02:12 PM, Heinz Diehl wrote:
>> > Do you have any .config item worth mentioning, something you recommend or 
>> > vice versa?
> Nope. Every config is different, and so is the machine which it will
> be installed on, and the preferences of the one who uses it. It's a
> learning experience for anybody who's new to the linux kernel which is 
> well worth the effort to dig into kernel configuration.
I started to do that and got to

. make -j4

my / file system ran out of space. I had 5.8Gb free before I started this..


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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, poma wrote: 

> Do you have any .config item worth mentioning, something you recommend or 
> vice versa?

Nope. Every config is different, and so is the machine which it will
be installed on, and the preferences of the one who uses it. It's a
learning experience for anybody who's new to the linux kernel which is 
well worth the effort to dig into kernel configuration.

 

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color display with man pages

[Amila Perera]

Hi all,

This is my first mail on fedora mailing list.

I can't get the following to display colours with LESS command on my
terminal,
when viewing man pages.
I am using Fedora 20 with KDE. My shell is zsh.
---
man()
{
env LESS_TERMCAP_mb=$'\E[01;31m' \
LESS_TERMCAP_md=$'\E[01;34m' \
LESS_TERMCAP_me=$'\E[0m' \
LESS_TERMCAP_se=$'\E[0m' \
LESS_TERMCAP_so=$'\E[01;33;40m' \
LESS_TERMCAP_ue=$'\E[0m' \
LESS_TERMCAP_us=$'\E[01;04;35m' \
man "$@"
}
---

The same function works perfectly fine in Ubuntu.

I tried serveral terminals like Konsole, Guake, Terminology, but none of
them seem to display the
colors.

Can someone explain me why this doesn't display the colors in Fedora 20.
Is there any workaround to solve this problem?

Thank you in advance.
-- 



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Re: new kernels & rebooting

[Marko Vojinovic]

On Mon, 21 Jul 2014 18:37:58 +0200
Heinz Diehl  wrote:
> Here's what I'm doing (and what I basically have been doing in many
> years):
> 
[snip]
> 
> In short: a simple kernel compile/install. Your kernel will live 
> peacefully alongside with your distribution kernel(s).

What is the purpose of installing a non-Fedora kernel, in your case?

Also, when the new security/bugfix patches land into the kernel tree, do
you recompile it again, or what? How much time do you devote to kernel
maintenance, on a monthly basis?

Best, :-)
Marko

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Solved - Re: Figuring out a headless server's zeroconf addr

[Robert Moskowitz]

Kind of.

No zeroconf.  For some reason.  But at least ipv6 local-scope.

Used wireshark to capture dhcp probes to get MAC address.

Converted MAC address into IPv6 local scope address.

ssh ipv6%interface

and I am in!

Now to later do this later to the actual box rather than between two 
notebooks.  But it should work the same!


On 07/21/2014 12:34 PM, Robert Moskowitz wrote:


On 07/21/2014 11:25 AM, Tim wrote:

On Mon, 2014-07-21 at 10:55 -0400, Robert Moskowitz wrote:

I have a headless system that I cannot connect to.  So I was thinking
to put a direct connection to it and my notebook.  Both ethernets
would use the zeroconf (169.254.0.0/16) addresses.  I could then use
fping
  fping -g 169.254.0.0/16
  And SHOULD be able to get its address, and then SSH into the box.

I was under the impression that zeroconf did some rudimentary name
resolution, and you ought to be able to connect to hostname.local
(replacing "hostname" with the actual hostname).

It'd be a bit dopey if a zero-configuration scheme required you to
configure things...


I am doing a little testing, and zeroconf does not seem to be 
working.  I am seeing the link up light on my ethernet port.  I am 
seeing a local-scope v6 address, but no v4 address:


p6p1: flags=4163  mtu 1500
inet6 fe80::ea9a:8fff:fe8d:7b56  prefixlen 64  scopeid 0x20
ether e8:9a:8f:8d:7b:56  txqueuelen 1000  (Ethernet)
RX packets 7  bytes 2130 (2.0 KiB)
RX errors 0  dropped 0  overruns 0  frame 0
TX packets 46  bytes 4948 (4.8 KiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Note that it is receiving packets from the other system.   It also has 
a local-scope ipv6 addr, but no zeroconf addr (both systems are Fedora 
20).


So how do I start zeroconf?  Of course on the other system, I can't do 
that...


So given ipv6 local-scope, how do I learn the other system's addr. 
Trying to figure out fping6.   How do I restrict it to the desired 
interface?





Any other thoughts?  I can't get to the box to recable it and reboot
it (as that is the only way I can figure out for it to readdress eth0)
until this evening.

Only that:  Are you on the same network?  169.254 connections can't be
expected to be reachable outside of their own net.


Crossover cable.  Is that enough of a 'same network'?  :)

And I have considerable routing and addressing knowledge.  Besides 
being one of the authors of rfc 1918, and worked on CIDR, here at IETF 
I contribute to ipv6ops and ipv6man.





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Re: new kernels & rebooting

[Tom H]

On Mon, Jul 21, 2014 at 12:37 PM, Heinz Diehl  wrote:
> On 21.07.2014, poma wrote:
>
>> Your expertise with kernel would be very welcome for the Fedora kernel also,
>> when you offer Heinz. ;)
>
> Here's what I'm doing (and what I basically have been doing in many years):
>
> 1. Download a kernel from kernel.org
> 2. Extract it into /usr/src
> 3. Apply some minor patches
> 4. Copy my .config into the kernel sourcetree (alternatively "make
>config", "make menuconfig" or thelike - in this case, you can of
>course omit 5.)
> 5. make oldconfig
> 5. make -j4
> 5. make modules_install
> 6. make install
> 7. reboot

You'd be better off replacing the second step 5 by "make rpm-pkg" and
the last step 5 and step 6 by "rpm -i ...".
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Re: new kernels & rebooting

[poma]

On 21.07.2014 18:37, Heinz Diehl wrote:

On 21.07.2014, poma wrote:


Your expertise with kernel would be very welcome for the Fedora kernel also,
when you offer Heinz. ;)


Here's what I'm doing (and what I basically have been doing in many years):

1. Download a kernel from kernel.org
2. Extract it into /usr/src
3. Apply some minor patches
4. Copy my .config into the kernel sourcetree (alternatively "make
config", "make menuconfig" or thelike - in this case, you can of
course omit 5.)
5. make oldconfig
5. make -j4
5. make modules_install
6. make install
7. reboot

In short: a simple kernel compile/install. Your kernel will live
peacefully alongside with your distribution kernel(s).

For those who just want to try: a good starting point for a customized
.config would be the .config of your distribution kernel (see /boot).
When I'm configuring a kernel for a new machine, I usually load and
connect my stuff and do a "make localmodconfig" and take this as a
starting point for further customizing, as I'm (more or less) familiar
with what I need and where I must look for it in the .config.



Do you have any .config item worth mentioning, something you recommend or vice 
versa?


poma


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dnf failed where yum succeeded

[JD]

# dnf -y install amd
Dependencies resolved.


 Package Arch
Version Repository  Size

Installing:
 am-utilsi686
5:6.1.5-30.fc20 updates834 k
 hesiod  i686
3.2.1-2.fc20fedora  30 k
 am-utilsx86_64
5:6.1.5-30.fc20 updates836 k
 libidn  i686
1.28-2.fc20 fedora 209 k
 hesiod  x86_64
3.2.1-2.fc20fedora  29 k

Transaction Summary

Install  5 Packages

Total download size: 1.9 M
Installed size: 5.0 M
Downloading Packages:
(1/5):
hesiod-3.2.1-2.fc20.i686.rpm  66
kB/s |  30 kB 00:00
(2/5): libidn-1.28-2.fc20.i686.rpm
167 kB/s | 209 kB 00:01
(3/5): hesiod-3.2.1-2.fc20.x86_64.rpm
106 kB/s |  29 kB 00:00
(4/5):
am-utils-6.1.5-30.fc20.i686.rpm   97
kB/s | 834 kB 00:08
(5/5):
am-utils-6.1.5-30.fc20.x86_64.rpm 77
kB/s | 836 kB 00:10

Total
114 kB/s | 1.9 MB 00:16
Running transaction check
Transaction check succeeded.
Running transaction test
Error: Transaction check error:
  file /usr/bin/pawd conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/amd conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/amq conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/fixmount conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/fsinfo conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/hlfsd conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/mk-amd-map conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64
  file /usr/sbin/wire-test conflicts between attempted installs of
am-utils-5:6.1.5-30.fc20.i686 and am-utils-5:6.1.5-30.fc20.x86_64

=

# yum -y install amd
Loaded plugins: langpacks, refresh-packagekit
adobe-linux-x86_64
|  951 B  00:00:00
google-earth
|  951 B  00:00:00
rpmfusion-free-updates
| 3.3 kB  00:00:00
rpmfusion-nonfree-updates
| 3.3 kB  00:00:00
updates/20/x86_64/metalink
|  15 kB  00:00:00
updates
| 4.9 kB  00:00:00
updates/20/x86_64/primary_db
|  11 MB  00:00:47
(1/2):
updates/20/x86_64/updateinfo
| 1.3 MB  00:00:05
(2/2):
updates/20/x86_64/pkgtags
| 878 kB  00:00:03
Resolving Dependencies
--> Running transaction check
---> Package am-utils.i686 5:6.1.5-30.fc20 will be installed
--> Processing Dependency: libhesiod.so.0 for package:
5:am-utils-6.1.5-30.fc20.i686
--> Running transaction check
---> Package hesiod.i686 0:3.2.1-2.fc20 will be installed
--> Processing Dependency: libidn.so.11(LIBIDN_1.0) for package:
hesiod-3.2.1-2.fc20.i686
--> Processing Dependency: libidn.so.11 for package:
hesiod-3.2.1-2.fc20.i686
--> Running transaction check
---> Package libidn.i686 0:1.28-2.fc20 will be installed
--> Finished Dependency Resolution

Dependencies Resolved


 Package Arch
Version   Repository  Size

Installing:
 am-utilsi686
5:6.1.5-30.fc20   updates834 k
Installing for dependencies:
 hesiod  i686
3.2.1-2.fc20  fedora  30 k
 libidn  i686
1.28-2.fc20   fedora 209 k

Transaction Summary

Install  1 Package (+2 Dependent packages)

Total download size: 1.0 M
Installed size: 2.8 M
Downloading packages:
(1/3):
hesiod-3.2.1-2.fc20.i686.rpm
|  30 kB  00:00:00
(2/3):
libidn-1.28-2.fc20.i686.rpm
| 209 kB  00:00:03
(3/3):
am-utils-6.1.5-30.fc20.i686.rpm
| 834 kB  00:00:04
-

Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, poma wrote: 

> Your expertise with kernel would be very welcome for the Fedora kernel also,
> when you offer Heinz. ;)

Here's what I'm doing (and what I basically have been doing in many years):

1. Download a kernel from kernel.org
2. Extract it into /usr/src
3. Apply some minor patches
4. Copy my .config into the kernel sourcetree (alternatively "make
   config", "make menuconfig" or thelike - in this case, you can of
   course omit 5.)
5. make oldconfig
5. make -j4
5. make modules_install
6. make install
7. reboot

In short: a simple kernel compile/install. Your kernel will live 
peacefully alongside with your distribution kernel(s).

For those who just want to try: a good starting point for a customized
.config would be the .config of your distribution kernel (see /boot).
When I'm configuring a kernel for a new machine, I usually load and
connect my stuff and do a "make localmodconfig" and take this as a
starting point for further customizing, as I'm (more or less) familiar 
with what I need and where I must look for it in the .config.

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Re: Figuring out a headless server's zeroconf addr

[Robert Moskowitz]

On 07/21/2014 11:25 AM, Tim wrote:

On Mon, 2014-07-21 at 10:55 -0400, Robert Moskowitz wrote:

I have a headless system that I cannot connect to.  So I was thinking
to put a direct connection to it and my notebook.  Both ethernets
would use the zeroconf (169.254.0.0/16) addresses.  I could then use
fping
  
fping -g 169.254.0.0/16
  
And SHOULD be able to get its address, and then SSH into the box.

I was under the impression that zeroconf did some rudimentary name
resolution, and you ought to be able to connect to hostname.local
(replacing "hostname" with the actual hostname).

It'd be a bit dopey if a zero-configuration scheme required you to
configure things...


I am doing a little testing, and zeroconf does not seem to be working.  
I am seeing the link up light on my ethernet port.  I am seeing a 
local-scope v6 address, but no v4 address:


p6p1: flags=4163  mtu 1500
inet6 fe80::ea9a:8fff:fe8d:7b56  prefixlen 64  scopeid 0x20
ether e8:9a:8f:8d:7b:56  txqueuelen 1000  (Ethernet)
RX packets 7  bytes 2130 (2.0 KiB)
RX errors 0  dropped 0  overruns 0  frame 0
TX packets 46  bytes 4948 (4.8 KiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Note that it is receiving packets from the other system.   It also has a 
local-scope ipv6 addr, but no zeroconf addr (both systems are Fedora 20).


So how do I start zeroconf?  Of course on the other system, I can't do 
that...


So given ipv6 local-scope, how do I learn the other system's addr. 
Trying to figure out fping6.   How do I restrict it to the desired 
interface?





Any other thoughts?  I can't get to the box to recable it and reboot
it (as that is the only way I can figure out for it to readdress eth0)
until this evening.

Only that:  Are you on the same network?  169.254 connections can't be
expected to be reachable outside of their own net.


Crossover cable.  Is that enough of a 'same network'?  :)

And I have considerable routing and addressing knowledge.  Besides being 
one of the authors of rfc 1918, and worked on CIDR, here at IETF I 
contribute to ipv6ops and ipv6man.



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Re: new kernels & rebooting

[poma]

On 21.07.2014 15:35, Heinz Diehl wrote:

On 21.07.2014, Paul Cartwright wrote:


Is it me, or does every other update lately seem to include a new
kernel.. I thought linux was meant to stay up & running. I seem to be
rebooting weekly now, just for a new kernel.


I've never used any Fedora kernel any longer than for the first
install. When updating, I specify "yum update --exclude=kernel*".



Your expertise with kernel would be very welcome for the Fedora kernel also,
when you offer Heinz. ;)


poma


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Re: new kernels & rebooting

[poma]

On 21.07.2014 12:41, Paul Cartwright wrote:
...

in less than 10 days..



Such rapid upgrades are actually commendable! :)
This is the very reason why people drive Ferrari.


poma


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Re: eth0 again - the end

[poma]

On 21.07.2014 11:30, poma wrote:

On 21.07.2014 07:35, Amadeus W.M. wrote:


[systemd-devel] 70-persistent-net.rules
http://lists.freedesktop.org/archives/systemd-devel/2013-April/010343.html

README.Fedora-18
http://pkgs.fedoraproject.org/cgit/systemd.git/tree/README.Fedora-18?h=f18#n17

0005-F18-Revert-udev-network-device-renaming-immediately-.patch
http://pkgs.fedoraproject.org/cgit/systemd.git/plain/0005-F18-Revert-udev-network-device-renaming-immediately-.patch?h=f18

udev: network device renaming - immediately give up if the target name isn't 
available
http://cgit.freedesktop.org/systemd/systemd/commit/src/udev/udev-event.c?id=97595710b77aa162ca5e20da57d0a1ed7355eaad


poma


That's very relevant! Thanks! So it might have not been the DEVICE=eth0 afterall
and in fact it can fail again?



Kernel


... naming mechanism you switch to 'll give you pleasure explicitly with only 
one real network interface.
All the rest is legend.


poma


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Re: Figuring out a headless server's zeroconf addr

[Tim]

On Mon, 2014-07-21 at 10:55 -0400, Robert Moskowitz wrote:
> I have a headless system that I cannot connect to.  So I was thinking
> to put a direct connection to it and my notebook.  Both ethernets
> would use the zeroconf (169.254.0.0/16) addresses.  I could then use
> fping
>  
> fping -g 169.254.0.0/16
>  
> And SHOULD be able to get its address, and then SSH into the box.

I was under the impression that zeroconf did some rudimentary name
resolution, and you ought to be able to connect to hostname.local
(replacing "hostname" with the actual hostname).

It'd be a bit dopey if a zero-configuration scheme required you to
configure things...

> Any other thoughts?  I can't get to the box to recable it and reboot
> it (as that is the only way I can figure out for it to readdress eth0)
> until this evening.

Only that:  Are you on the same network?  169.254 connections can't be
expected to be reachable outside of their own net.


-- 
tim@localhost ~]$ uname -rsvp

Linux 3.14.8-200.fc20.i686 #1 SMP Mon Jun 16 22:36:56 UTC 2014 i686

All mail to my mailbox is automatically deleted, there is no point trying
to privately email me, I will only read messages posted to the public lists.

George Orwell's '1984' was supposed to be a warning against tyranny, not
a set of instructions for supposedly democratic governments.

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Figuring out a headless server's zeroconf addr

[Robert Moskowitz]

I have a headless system that I cannot connect to.  So I was thinking to 
put a direct connection to it and my notebook.  Both ethernets would use 
the zeroconf (169.254.0.0/16) addresses.  I could then use fping


fping -g 169.254.0.0/16

And SHOULD be able to get its address, and then SSH into the box.

Any other thoughts?  I can't get to the box to recable it and reboot it 
(as that is the only way I can figure out for it to readdress eth0) 
until this evening.



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Re: new kernels & rebooting

[Heinz Diehl]

On 21.07.2014, Paul Cartwright wrote: 

> Is it me, or does every other update lately seem to include a new
> kernel.. I thought linux was meant to stay up & running. I seem to be
> rebooting weekly now, just for a new kernel.

I've never used any Fedora kernel any longer than for the first
install. When updating, I specify "yum update --exclude=kernel*".


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NFS with latest kernel refusing mount requests

[Stephen Berg (Contractor)]

Just updated this system to kernel-3.15.6-200 and the NFS exported home 
directory on it all of a sudden can't be mounted from any other system 
on my network.  Rebooted to the previous 3.15.5-200 kernel and it's back 
to normal.  We have some legacy stuff using NIS and automounted 
directories, mostly SciLinux 6.5 stuff.


Log entry:
Jul 21 07:32:15  rpc.mountd[16359]: refused mount request from 
 for /export/home (/export/home): unmatched host


I looked at /etc/exports, /etc/resolv.conf, /etc/nsswitch.conf, nothing 
seemed out of place and since it's working in the previous kernel I 
suspect something in the new kernel is causing the issue. Nothing else 
that got updated this morning seems to be a likely cause.


Running a "getent netgroup " gave me the expected results 
which included the system trying to mount the shared directory.


Just curious if anyone else sees similar issues with the latest kernel.

--
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Systems Administrator
NRL Code: 7320
Office: 228-688-5738
stephen.berg@nrlssc.navy.mil

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Re: NFS Performance Woes

[Ed Greshko]

On 07/21/14 19:59, Ian Chapman wrote:
> Nfsstat, wireshark and the system logs do not show anything which screams 
> there's a problem.
>
> The network card in the client machine and the server shows no collisions, 
> dropped packets, frame overruns etc.
>
> I've tested with the export that isn't using Kerberos and still have the same 
> issue. Messing with the rsize, wsize, async, sync parameters makes no 
> difference either.
>
> The server has 32GB RAM, the client 16GB.
>
> For all intents and purpose it looks like its working as it should, it's just 
> painfully slow.
>
> Any NFS gurus out there, that can tell me what I'm doing wrong? 

I've been using NFSv4 extensively for several years and I've not had an issue 
that you describe where everything is fine and then suddenly performance goes 
to hell in a hand basket. 

It sounds as if you only have 2 systems to work with?  No, tiebreaker so to 
speak?

Have you considered running a VM on your client system to see if it is affected 
in the same way?

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Re: eth0 again

[Bill Oliver]

On Mon, 21 Jul 2014, Paul Cartwright wrote:


On 07/20/2014 09:39 PM, Thomas Cameron wrote:

It's doing exactly the opposite of what I want.



Have you tried this?

http://www.cyberciti.biz/faq/howto-linux-rename-ethernet-devices-named-using-udev/
--

I have the same issue, and I don't have this file they say to modify..
no |70-persistent-net.rules|
To rename eth0 as wan0, edit a file
called 70-persistent-net.rules in/etc/udev/rules.d/ directory, enter:
|# vi /etc/udev/rules.d/70-persistent-net.rules|file not there..




I don't think you modify it.  I think you create it.

billo
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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 07:42 AM, Patrick O'Callaghan wrote:
>> thanks, good info! I don't have a problem with the speed of reboots, I
>> > just do init 6 from command line.. It just seems that all I have been
>> > doing lately is rebooting, and setting up all the windows I keep open..
>> > 3 kernels in 10 days..
> It's a symptom of active development. Unlike some other distros, Fedora
> tracks the upstream kernel versions quite closely, but there's nothing
> obliging you to always use the latest kernel if it doesn't fix anything
> relevant to you.
I like to keep up with updates, and I am not comfortable adding more
updates, especially security updates, when I am not running the latest
kernel..

-- 
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Registered Linux User #367800 and new counter #561587

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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 08:18 AM, Bruno Wolff III wrote:
>> Is it me, or does every other update lately seem to include a new
>> kernel.. I thought linux was meant to stay up & running. I seem to be
>> rebooting weekly now, just for a new kernel.  Now on:
>
> We'll you could keep running the older kernel. Depending on what the
> update has there may not be a pressing need to switch on a particular
> system. Though updates to stable kernels are often security or data
> loss bugs, so staying on the old kernels without reviewing the changes
> isn't a great idea. And reviewing the changes would also take time and
> expertise. So for most people just rebooting at the first covenient
> time is going to make the most sense.
>
> You might want to keep an eye on the kGraft project.
> https://www.suse.com/communities/conversations/kgraft-live-kernel-patching/

thanks! I do like to keep up with the latest kernel, and I admit I don't
read the change logs.. so I just DO IT:)

kGraft looks interesting, hope it works out!

-- 
Paul Cartwright
Registered Linux User #367800 and new counter #561587

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Re: new kernels & rebooting

[Bruno Wolff III]

On Mon, Jul 21, 2014 at 06:41:05 -0400,
 Paul Cartwright  wrote:

Is it me, or does every other update lately seem to include a new
kernel.. I thought linux was meant to stay up & running. I seem to be
rebooting weekly now, just for a new kernel.  Now on:


We'll you could keep running the older kernel. Depending on what the update 
has there may not be a pressing need to switch on a particular system. 
Though updates to stable kernels are often security or data loss bugs, 
so staying on the old kernels without reviewing the changes isn't a 
great idea. And reviewing the changes would also take time and expertise. 
So for most people just rebooting at the first covenient time is going to 
make the most sense.


You might want to keep an eye on the kGraft project.
https://www.suse.com/communities/conversations/kgraft-live-kernel-patching/
https://www.suse.com/company/press/2014/1/suse-develops-kgraft-for-live-patching-of-linux-kernel.html

And Red Hat has a similar project:
http://rhelblog.redhat.com/2014/02/26/kpatch/
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Re: NFS Performance Woes

[Tom Horsley]

On Mon, 21 Jul 2014 19:59:40 +0800
Ian Chapman wrote:

> Any NFS gurus out there, that can tell me what I'm doing wrong?

Not a useful answer, I'm afraid:

In my experience, the fundamental problem is caused by using NFS.

With all the folks re-writing things that don't need to be replaced,
I really wonder why no one seems to be re-writing NFS, which has been
utterly unreliable and trouble prone since day one :-(.
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NFS Performance Woes

[Ian Chapman]

Hi,

I've been unable to track down an extremely annoying performance issue 
with NFS. My home server has several exports shared over NFS4. The 
exports are all secured using Kerberos except one, which can be mounted 
using the traditional sys security model.


The problem is that write performance stalls at 48k/sec (or according to 
nfsiostat 4k/sec) despite being on a 1Gbit network and once this occurs, 
nothing I do seems to fix it. The only thing that does, is rebooting the 
client machine. This has been occurring for a year or so now but is 
happening so regularly now, it's driving me nuts! :-)


I'm fairly sure it's a client side issue, because rebooting the client 
allows normal transfer speeds once again. If I only reboot the server it 
makes no difference. My client is F19, the server is F20. After 
rebooting the client, write transfers can be fine for a day or so and 
then all of a sudden it hangs around 48k/sec again.


Restarting all the NFS daemons on the client makes no difference, 
including the associated RPC daemons. The NFS exports are mounted via 
autofs, but manually mounting makes no difference either.


When I'm experiencing slow writes to the server of 48k/sec, NFS reads 
are still in the region of 100MB/sec. Using scp or even copying files to 
the server via CIFS are well within the range of a 1Gbit network.


Nfsstat, wireshark and the system logs do not show anything which 
screams there's a problem.


The network card in the client machine and the server shows no 
collisions, dropped packets, frame overruns etc.


I've tested with the export that isn't using Kerberos and still have the 
same issue. Messing with the rsize, wsize, async, sync parameters makes 
no difference either.


The server has 32GB RAM, the client 16GB.

For all intents and purpose it looks like its working as it should, it's 
just painfully slow.


Any NFS gurus out there, that can tell me what I'm doing wrong?

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Ian Chapman.
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Re: new kernels & rebooting

[Patrick O'Callaghan]

On Mon, 2014-07-21 at 07:29 -0400, Paul Cartwright wrote:
> On 07/21/2014 07:19 AM, Alchemist wrote:
> >
> >
> > You can do fast-reboot by using kexec
> > https://fedoraproject.org/wiki/Kernel/kexec
> >  
> thanks, good info! I don't have a problem with the speed of reboots, I
> just do init 6 from command line.. It just seems that all I have been
> doing lately is rebooting, and setting up all the windows I keep open..
> 3 kernels in 10 days..

It's a symptom of active development. Unlike some other distros, Fedora
tracks the upstream kernel versions quite closely, but there's nothing
obliging you to always use the latest kernel if it doesn't fix anything
relevant to you.

poc

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Re: new kernels & rebooting

[Paul Cartwright]

On 07/21/2014 07:19 AM, Alchemist wrote:
>
>
> You can do fast-reboot by using kexec
> https://fedoraproject.org/wiki/Kernel/kexec
>  
thanks, good info! I don't have a problem with the speed of reboots, I
just do init 6 from command line.. It just seems that all I have been
doing lately is rebooting, and setting up all the windows I keep open..
3 kernels in 10 days..

-- 
Paul Cartwright
Registered Linux User #367800 and new counter #561587

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Re: new kernels & rebooting

[Alchemist]

2014-07-21 13:41 GMT+03:00 Paul Cartwright :

> Is it me, or does every other update lately seem to include a new
> kernel.. I thought linux was meant to stay up & running. I seem to be
> rebooting weekly now, just for a new kernel.  Now on:
> uname -a
> Linux pauls-server 3.15.6-200.fc20.x86_64 #1 SMP Fri Jul 18 02:36:27 UTC
> 2014 x86_64 x86_64 x86_64 GNU/Linux
>
> is there some command I don't know about that will let you swap to the
> latest kernel without rebooting???
> the 3 latest kernels:
> -rwxr-xr-x. 1 root root  5538536 Jul  7 10:32
> vmlinuz-3.15.4-200.fc20.x86_64
> -rwxr-xr-x. 1 root root  5538920 Jul 14 11:49
> vmlinuz-3.15.5-200.fc20.x86_64
> -rwxr-xr-x. 1 root root  5539144 Jul 17 22:49
> vmlinuz-3.15.6-200.fc20.x86_64
>
> in less than 10 days..
>
>
> --
> Paul Cartwright
> Registered Linux User #367800 and new counter #561587
>
>

You can do fast-reboot by using kexec
https://fedoraproject.org/wiki/Kernel/kexec


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Re: new kernels & rebooting

[Digimer]

On 21/07/14 07:11 AM, Timothy Murphy wrote:

Digimer wrote:


is there some command I don't know about that will let you swap to the
latest kernel without rebooting???



Fedora is not a server OS. It's a bleeding-edge distro and as such,
changes often. If you want stability, use RHEL/CentOS. Far fewer kernel
updates there.


As a matter or interest, is what the OS asked available on CentOS?


No. Ksplice was supposed to add that support, but it was sucked up by 
Oracle, iirc.


--
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Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without 
access to education?

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Re: new kernels & rebooting

[Timothy Murphy]

Digimer wrote:

>> is there some command I don't know about that will let you swap to the
>> latest kernel without rebooting???

> Fedora is not a server OS. It's a bleeding-edge distro and as such,
> changes often. If you want stability, use RHEL/CentOS. Far fewer kernel
> updates there.

As a matter or interest, is what the OS asked available on CentOS?

-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin 2, Ireland


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Re: new kernels & rebooting

[Sam Varshavchik]

Paul Cartwright writes:


is there some command I don't know about that will let you swap to the
latest kernel without rebooting???


No. The only way to switch kernels is a reboot.




pgpg1Fk0Qs3Zn.pgp
Description: PGP signature
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Re: new kernels & rebooting

[Digimer]

On 21/07/14 06:41 AM, Paul Cartwright wrote:

Is it me, or does every other update lately seem to include a new
kernel.. I thought linux was meant to stay up & running. I seem to be
rebooting weekly now, just for a new kernel.  Now on:
uname -a
Linux pauls-server 3.15.6-200.fc20.x86_64 #1 SMP Fri Jul 18 02:36:27 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux

is there some command I don't know about that will let you swap to the
latest kernel without rebooting???
the 3 latest kernels:
-rwxr-xr-x. 1 root root  5538536 Jul  7 10:32 vmlinuz-3.15.4-200.fc20.x86_64
-rwxr-xr-x. 1 root root  5538920 Jul 14 11:49 vmlinuz-3.15.5-200.fc20.x86_64
-rwxr-xr-x. 1 root root  5539144 Jul 17 22:49 vmlinuz-3.15.6-200.fc20.x86_64

in less than 10 days..


Fedora is not a server OS. It's a bleeding-edge distro and as such, 
changes often. If you want stability, use RHEL/CentOS. Far fewer kernel 
updates there.


--
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Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without 
access to education?

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Re: eth0 again

[Paul Cartwright]

On 07/20/2014 09:39 PM, Thomas Cameron wrote:
>> > It's doing exactly the opposite of what I want. 
>> > 
>> > 
> Have you tried this?
>
> http://www.cyberciti.biz/faq/howto-linux-rename-ethernet-devices-named-using-udev/
> -- 
I have the same issue, and I don't have this file they say to modify..
no |70-persistent-net.rules|
To rename eth0 as wan0, edit a file
called 70-persistent-net.rules in/etc/udev/rules.d/ directory, enter:
|# vi /etc/udev/rules.d/70-persistent-net.rules|file not there..

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new kernels & rebooting

[Paul Cartwright]

Is it me, or does every other update lately seem to include a new
kernel.. I thought linux was meant to stay up & running. I seem to be
rebooting weekly now, just for a new kernel.  Now on:
uname -a
Linux pauls-server 3.15.6-200.fc20.x86_64 #1 SMP Fri Jul 18 02:36:27 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux

is there some command I don't know about that will let you swap to the
latest kernel without rebooting???
the 3 latest kernels:
-rwxr-xr-x. 1 root root  5538536 Jul  7 10:32 vmlinuz-3.15.4-200.fc20.x86_64
-rwxr-xr-x. 1 root root  5538920 Jul 14 11:49 vmlinuz-3.15.5-200.fc20.x86_64
-rwxr-xr-x. 1 root root  5539144 Jul 17 22:49 vmlinuz-3.15.6-200.fc20.x86_64

in less than 10 days..


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Registered Linux User #367800 and new counter #561587

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Re: eth0 again - the end

[poma]

On 21.07.2014 07:35, Amadeus W.M. wrote:


[systemd-devel] 70-persistent-net.rules
http://lists.freedesktop.org/archives/systemd-devel/2013-April/010343.html

README.Fedora-18
http://pkgs.fedoraproject.org/cgit/systemd.git/tree/README.Fedora-18?h=f18#n17

0005-F18-Revert-udev-network-device-renaming-immediately-.patch
http://pkgs.fedoraproject.org/cgit/systemd.git/plain/0005-F18-Revert-udev-network-device-renaming-immediately-.patch?h=f18

udev: network device renaming - immediately give up if the target name isn't 
available
http://cgit.freedesktop.org/systemd/systemd/commit/src/udev/udev-event.c?id=97595710b77aa162ca5e20da57d0a1ed7355eaad


poma


That's very relevant! Thanks! So it might have not been the DEVICE=eth0 afterall
and in fact it can fail again?



Kernel


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