BTRFS Question
by Javier Perez
Hi
I am just learning about btrfs on my home system.
How do I know what kind of options where used to create a BTRFS filesystem?
I installed F21 from scratch and I created a BTRFS filesystem on a HDD.
I think I created it with the "single" option.
Now I read that that is dangerous, I should have created it as one of the
raids if I want to have data redundancy and protection vs bit rot (which is
what I was looking forward to).
How can I verify it? Also, If I want to change it, can I do it IN-PLACE or
do I have to reformat/recreate the filesystem?
Thanks for whatever help/illumination you might provide. I am catching up
on btrfs, but I am not there yet.
JP
--
------------------------------
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~~~~ Javier Perez
~~~~ While the night runs
~~~~ toward the day...
m m Pepebuho watches
from his high perch.
8 years, 10 months
RFC: Multiboot Guide
by Pete Travis
Hi All,
There's regularly questions here, and around the internet (ie ask.fp.o)
about dual booting Fedora with Windows systems, or other Linux systems,
or OSX. To address the more common questions, the Fedora Docs team has
written a Multiboot Guide[1].
The guide is intended to help set up a multiboot system in a functional
way, or to help get to a more functional state if needed. For the most
part, we've tried not to make it intimidatingly complex, and I hope that
it will aid you in most multibooting situations.
As with all of Fedora's documentation, feedback from readers is crucial
to ensuring the quality of the work. Please use the guide, and if you
find questions unanswered or answers unclear, reply here or use the
'multiboot-guide' component of the Fedora Documentation product on
https://bugzilla.redhat.com .
[1]
http://docs.fedoraproject.org/en-US/Fedora/22/html/Multiboot_Guide/index....
--
-- Pete Travis
- Fedora Docs Project Leader
- 'randomuser' on freenode
- immanetize(a)fedoraproject.org
8 years, 10 months
Biting the bullet?
by Rolf Turner
I have finally reached a stage where I may have to bite the bullet,
grasp the nettle, screw my courage to the sticking place .... and
upgrade my Fedora version.
I am currently running Fedora 17. Which is of course antediluvian. But
everything I have seen on this list with respect to upgrading terrifies
me. Disasters seem to lurk everywhere and I haven't the skills to cope
with disasters. Nor do I have access to any support in respect of Fedora.
So, if you will bear with me, I'd like to start off with a preliminary
question:
The seeming necessity for upgrading arises from a pressing need to
upgrade "R" to version 3.2.0. When I try to build this version I get a
load of error messages (basically coming from gcc I think) like unto:
> connections.o: In function `gzcon_write':
> /home/rolf/Desktop/Rinst/R-3.2.0/src/main/connections.c:5469: undefined reference to `deflate'
There were also complaints about undefined references to inflate, crc32,
deflateEnd, inflateEnd, inflateReset, inflateInit2_, deflateInit2_,
compress, uncompress, and zlibVersion, many of which were issued
repeatedly. It finally gave up, saying:
> collect2: error: ld returned 1 exit status
People from the R-help mailing list said that the problem lies in some
"compression related" libs --- zlib, bzlib, liblzma.
I tried installing zlib and zlib-devel (using yum install) and was told
in both cases that my system was up-to-date. I tried installing bzlib
and was told there was nothing by that name. I then installed lzma and
lzma-devel (*that* seemed to work) but it didn't help. Same undefined
references problems as before.
It was also suggested that I try building R-patched. So I tried; no
help there either.
So: Can anyone suggest what I can or should do to overcome this problem
*without* having to upgrade?
Given that the answer to my preliminary question is "No", can anyone be
so kind as to provide me with a *recipe* for upgrading, expressed in
simple-minded terms that I can understand? Something of the form:
(1) First, do this.
(2) Second, do something else.
(3) Third .....
You get the idea. I'm afraid vague generalities would be of no help to
me, since I am a bear of very little brain and long words bother me.
(I know that step (0) is to make a backup of all my user files. Which I
know how to do and will do.)
A specific question, I guess, is: Do I use yum for such an upgrade?
(And if so, what is the syntax?) Or do I use fedup? (And likewise, what
is the syntax?)
If no-one wants to write out a set of instructions for me (and
admittedly I can see that they may well not want to) can someone point
me at such a set of instructions somewhere on the web? Again, they
would have to be expressed in a very simple-minded way. ("Upgrading
Fedora for Dummies".)
Everlastingly grateful for any help that anyone can extend.
cheers,
Rolf Turner
-
Technical Editor ANZJS
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276
Home phone: +64-9-480-4619
8 years, 11 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
##################################################
8 years, 11 months
F22 KDE How To Remove "Software Updates" Widget?
by Christopher Ross
In the Fedora 22 / KDE 5 task bar there is a "Software Updates" widget.
Where is the setting to remove that? It's inappropriate for arbitrary
end users to be be updating the system software on shared machines.
Many thanks,
Chris R.
8 years, 11 months
Re: Fedora 22 is here!
by Suvayu Ali
Hi Matthew,
Looking forward to this release. I haven't read the release notes yet,
however I have a few questions or comments. If "read the release notes"
is the best answer, please feel free to say so :).
On Tue, May 26, 2015 at 09:49:49AM -0400, Matthew Miller wrote:
>
> * Atomic Improvements – Fedora 22 Atomic Host includes a number of
> interesting improvements, including the Atomic command, updated
> Docker, Kubernetes, Flannel, and rpm-ostree packages.
>
> * Dockerfiles – Fedora 22 also includes a fedora-dockerfiles
> package (and up-to-date git repository) for building applications
> with the base Fedora 22 Dockerfile and additional packages.
I'm interested in running SLC containers on Fedora hosts. Does any of
these packages facilitate that? What I understood so far is, it allows
me to run the latest Fedora containers in other places easily. Where
would one go looking for info for a need like mine?
> * Cockpit will be compatible between OS releases -- Cockpit is a
> server manager that makes it easy to administer your GNU/Linux
> servers via a web browser.
>
> - Easy to use. Cockpit is perfect for new sysadmins, allowing
> them to easily perform simple tasks such as storage
> administration, inspecting journals and starting and stopping
> services.
>
> - No interference. Jumping between the terminal and the web
> tool is no problem. A service started via Cockpit can be
> stopped via the terminal. Likewise, if an error occurs in the
> terminal, it can be seen in the Cockpit journal interface.
>
> - Multi-server. You can monitor and administer several servers
> at the same time.
I tried this a bit already, I like the convenience of having everything
aggregated together, however I'm a bit uneasy that a browser is the
interface. After all it is the most vulnerable application on most
machines. Are there other (safer) interfaces I can try, preferably on
the CLI? Am I being unreasonably paranoid? I'm really interested in
trying the multi-server bits. Any pointers?
> * Better notifications.
[...chomp...chomp...chomp...]
> details. And if you're a serious Terminal user, longer background
> jobs now notify you when they're done, so you can get on with
> other work and pick up the results when you're ready.
Is this desktop agnostic? I use XFCE. I'm guessing it's some kind of
DBUS magic?
> Fedora Labs
> -----------
>
> We also have a new site, presenting functional bundles of software
> which were previously also collected as Spins. Visit
> https://labs.fedoraproject.org/ for collections focusing on gaming,
> audio production, robotics, security, and more.
Collecting all the resources on RTD is a great initiative. Wonderful!
> GNU Compiler Collection 5
> -------------------------
>
> Fedora 22 comes with GCC 5.1 as the primary compiler suite.
This question is probably off-topic here, but I'll ask anyway :-p. Does
this make a significant difference during development when I want my
projects to also compile with older GCC like 4.[89]?
> Fedora's FedUp utility enables an easy upgrade to Fedora 22 from
> previous releases. See the FedUp page on the Fedora wiki for more
> information:
This question is not exactly about FedUp. I find it strange that no
release so far has supported yum (or dnf now) as one of the upgrade
methods. And yet, I have had the most reliable upgrade experiences with
it since F12 or so! Any reason why this is the case? I think it is the
method that allows for the shortest of downtimes.
Thanks for the release. Looking forward to trying it!
Cheers,
--
Suvayu
Open source is the future. It sets us free.
8 years, 11 months
How to figure out which package provides the "Fixed 16" font
by Ranjan Maitra
Hi,
I was wondering how to find out the package that provides the font called "Fixed 16" in Fedora 22. The font existed in Fedora 21. Installing the same packages in F22 that were in F21 has made this font disappear (actually, I fedup-ed and nothing font-related that I can tell was dropped or obsoleted.)
Many thanks,
Ranjan
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8 years, 11 months
kde error's in f22
by William Biggs
I hope I can word this right. I tryed to install f22 with kde .it
install just fine . But the installer will blink a lot while install
but after the install when I try to reboot the reboot window just
blink's but this part just dose this with kde 5 . And all so after I
log in to kde . When I open any window full screen it just keeps blink
until it open all the way it stops All so if I make the window smaller
the screen start's to screen tearing and the windows is still take the
whole screen just like when you open a java app in windows . But if I
go to gnome it dose not do any of that I running f22 on a amd 3.6 pros
16 g of ram and the hdmi video card is the one on board it is the ati
ver . All so is I move windows around I get screen tearing it just dose
this in kde 5 only
8 years, 11 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."
8 years, 11 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."
8 years, 11 months
