I've just gotten everything switched to fedora 27,
and I'm now finding that guestmount fails on a
running VMs disk image. I used to be able to
mount --ro and see a read only snapshot of the
disk even if the KVM was still running. Now I
get a lot of errors when I run:
LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1 guestmount -d centinil -i --ro mnt
One of the errors that appears is:
qemu-img: /tmp/libguestfssn6HDK/overlay1.qcow2: Failed to get shared "write" lock
Is another process using the image?
And, yes, another process is using the image, but --ro
used to work even when that was the case.
Should I submit a bug on this, or is this change
(The guestmount does seem to work fine once the VM is
I'm not using the wi-fi in my Intel NUC, and about once
a minute or so a log message appears saying "Hey! Your
wi-fi interface isn't configured" (not that exact
language, mind you :-).
Any way to convince fedora to ignore this interface
rather than honking about it every minute?
I upgraded from F25 to F26 yesterday and ever since have been seeing the
system frequently become totally unresponsive.
It seems to be quite random and can only be resolved by hitting the reset
button to reboot.
On other occasions it doesn't quite die but starting anything takes several
minutes rather than seconds.
Thunderbird and dnf are examples but sometimes there is just no response to
key strokes or clicks.
The only clue that I have seen is that top often shows very high wait I/O
levels and swap space is sometimes (but not always) low.
Nothing has changed in the system workload or configuration.
This is a production machine so any help will be very welcome.
Cheers and thanks,
Stephen Davies Consulting P/L Phone: 08-8177 1595
Adelaide, South Australia. Mobile:040 304 0583
I have a (maybe stupid) question : I have installed BackupPC , but I can
not launche the application.
I also can not find the app listed in Applications.
So where can I find the app and start the program BackupPC ?
Ger van Dijck.
Using Opera's mail client: http://www.opera.com/mail/
As part of: https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife
I'm pushing a change to the Fedora Rawhide kernel to enable the new
med_power_with_dipm sata link powermanagement policy by default on
mobile Intel chipsets (Laptops, NuCs, etc.).
The good news about this change is that on laptops using a sata disk
it will typically save about 1W - 1.5W of power when the laptop is idle.
The bad news is that the min_power policy is known to cause data corruption
with some disks (has been reported with older sandisk ssds and some crucial
ssds). The new med_power_with_dipm sata lpm policy mirrors the default
Windows IRST lpm settings, so it should be safe to use, but the proof is
in the pudding.
I've done a blog post a while back asking users to test
this: https://hansdegoede.livejournal.com/18412.html and here is a list
of successfully tested systens + disks:
So far no problems have been reported but if you're running rawhide now
would be a good time to make sure your backups are in order before
upgrading to the next rawhide kernel.
TL;DR: The next rawhide kernel build contains SATA changes which _may_
cause disk corruption, they shouldn't, but please check your backups
Anyone ever run into this? And how to fix it?
This is a fresh install of F27. I tried to build a program called MakeMKV.
Here's the output of the configure script:
> checking build system type... x86_64-unknown-linux-gnu
> checking host system type... x86_64-unknown-linux-gnu
> checking target system type... x86_64-unknown-linux-gnu
> checking how to print strings... printf
> checking for gcc... gcc
> checking whether the C compiler works... yes
> checking for C compiler default output file name... a.out
> checking for suffix of executables...
> checking whether we are cross compiling... no
> checking for suffix of object files... o
> checking whether we are using the GNU C compiler... yes
> checking whether gcc accepts -g... yes
> checking for gcc option to accept ISO C89... none needed
> checking for a sed that does not truncate output... /usr/bin/sed
> checking for grep that handles long lines and -e... /usr/bin/grep
> checking for egrep... /usr/bin/grep -E
> checking for fgrep... /usr/bin/grep -F
> checking for ld used by gcc... /usr/bin/ld
> checking if the linker (/usr/bin/ld) is GNU ld... yes
> checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
> checking the name lister (/usr/bin/nm -B) interface... BSD nm
> checking whether ln -s works... yes
> checking the maximum length of command line arguments... 1572864
> checking whether the shell understands some XSI constructs... yes
> checking whether the shell understands "+="... yes
> checking how to convert x86_64-unknown-linux-gnu file names to
> x86_64-unknown-linux-gnu format... func_convert_file_noop
> checking how to convert x86_64-unknown-linux-gnu file names to
> toolchain format... func_convert_file_noop
> checking for /usr/bin/ld option to reload object files... -r
> checking for objdump... objdump
> checking how to recognize dependent libraries... pass_all
> checking for dlltool... no
> checking how to associate runtime and link libraries... printf %s\n
> checking for ar... ar
> checking for archiver @FILE support... @
> checking for strip... strip
> checking for ranlib... ranlib
> checking for gawk... gawk
> checking command to parse /usr/bin/nm -B output from gcc object... ok
> checking for sysroot... no
> checking for mt... no
> checking if : is a manifest tool... no
> checking how to run the C preprocessor... gcc -E
> checking for ANSI C header files... yes
> checking for sys/types.h... yes
> checking for sys/stat.h... yes
> checking for stdlib.h... yes
> checking for string.h... yes
> checking for memory.h... yes
> checking for strings.h... yes
> checking for inttypes.h... yes
> checking for stdint.h... yes
> checking for unistd.h... yes
> checking for dlfcn.h... yes
> checking for objdir... .libs
> checking if gcc supports -fno-rtti -fno-exceptions... no
> checking for gcc option to produce PIC... -fPIC -DPIC
> checking if gcc PIC flag -fPIC -DPIC works... yes
> checking if gcc static flag -static works... no
> checking if gcc supports -c -o file.o... yes
> checking if gcc supports -c -o file.o... (cached) yes
> checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports
> shared libraries... yes
> checking whether -lc should be explicitly linked in... no
> checking dynamic linker characteristics... GNU/Linux ld.so
> checking how to hardcode library paths into programs... immediate
> checking whether stripping libraries is possible... yes
> checking if libtool supports shared libraries... yes
> checking whether to build shared libraries... yes
> checking whether to build static libraries... no
> checking for gcc... (cached) gcc
> checking whether we are using the GNU C compiler... (cached) yes
> checking whether gcc accepts -g... (cached) yes
> checking for gcc option to accept ISO C89... (cached) none needed
> checking for g++... no
> checking for c++... no
> checking for gpp... no
> checking for aCC... no
> checking for CC... no
> checking for cxx... no
> checking for cc++... no
> checking for cl.exe... no
> checking for FCC... no
> checking for KCC... no
> checking for RCC... no
> checking for xlC_r... no
> checking for xlC... no
> checking whether we are using the GNU C++ compiler... no
> checking whether g++ accepts -g... no
> checking for -objcopy... no
> checking for objcopy... objcopy
> checking for -ld... /usr/bin/ld -m elf_x86_64
> checking for a BSD-compatible install... /usr/bin/install -c
> checking zlib.h usability... yes
> checking zlib.h presence... yes
> checking for zlib.h... yes
> checking for compress2 in -lz... yes
> checking openssl/opensslconf.h usability... no
> checking openssl/opensslconf.h presence... no
> checking for openssl/opensslconf.h... no
> configure: error: in
> configure: error: openssl library header files not found
> See `config.log' for more details
I completed my installation of solid-state drives and, of course, a new
installation of F27.
And now: what happened to my system configuration tools? How do I start
and stop services?
My biggest problem is Samba. I can't see any Windows computers on my
network, and they can't see me. (I can, however, see a network printer.
That, I configured in the System Settings app.)
This relates also to another thread I started, namely "where are my
system configuration tools." This problem comes after a "clean install"
of F27. My old system-config-samba applet is gone--dnf can't find it to
install. And I don't see any launcher for NetworkManager or whatever I'm
supposed to use.
Right now, the Fedora system can't see any Windows computer on my
network--can't find it even with a direct address input (and I wouldn't
know how to send one.) And the Windows boxes can't see the Fedora
system, either--I type "\\[hostname]" and get a message saying "Windows
can't access [that host]."
I've already edited the files /etc/hostname and /etc/hosts to reflect my
choice of hostname. I replaced "localdomain" with "home," in keeping
with the Windows domain.
How can I check that the services smb, nmb, and winbind are even running?
If you have followed my threads about:
SMB failing with F27
system hanging and requring repeated restarts,
then you've seen people suggest replacing my 1 TB HDD with an SSD. I
acquired a 1 TB SSD and then tried to clone the HDD to the SSD. The
clone /failed/. Reason: the disk is already showing some bad sectors.
The outputs of satactl and fsck make that undeniably clear.
On the advice of a professional installer, I have since acquired an
additional SSD (capacity 120 GB) and am now acquiring a mounting bracket
and some power and SATA data cables. I also downloaded the F27 KDE
Plasma 5 Spin as an ".iso" image.
My plan is to install F27 "clean" on the two SSD's, mounting the 120 GB
SSD at root ("/") and the 1 TB SSD at /home. I must then migrate my
data, browser cookies (Google Chrome, Firefox), e-mail
accounts/saved/messages/other settings (Thunderbird), and documents,
pictures, music, videos, and various downloads from the HDD to the SSD.
This machine has 8 GB of memory on board.
I now ask the community for some suggestions.
First, for partitioning:
1. Should I even try to accept /automatic/ partitioning when the
installer gets to that point?
2. Is 120 GB large enough for the information on the other directories
3. Should I create a separate /boot partition on the smaller SSD, and if
so, how large should I make it?
4. How large should the swap partition be, and where should I put it?
(That is, on the 120 GB or the 1 TB drive)?
5. In general, should I place a partition for anything other than /home
on the 1 TB SSD?
Now, as regards data migration: I have three user accounts to migrate,
plus another directory on /home called "lost and found."
1. Should I even try to migrate "lost and found," and if so, how?
2. I have at least two choices for migrating data and settings from the
various user accounts--three for some of them.
a. Connect the HDD to the SATA bus /after/ installing F27, and then
force-copying everything out of each /home directory to its
corresponding directory on the new configuration. (What command(s) would
you recommend using, and with what options/switches/etc.?)
b. Connect a large external HDD through a USB interface, transfer
all the data to it before modifying the hardware, then re-transfer it to
the system after installing the SSD's and F27.
c. Migrate the data to its "temporary refuge" over a Samba network
(possibly do-able for at least one account, and that's the biggest
account) and then re-migrate to the new system?
Which choice would you recommend?
3. Is it worth migrating every single hidden file or folder? Or should I
select only those folders that I know contain customization, account, or
similar settings, plus my saved documents/pictures/music/videos, and
Thanks in advance.
I have Fedora 26 on laptop. I have configured dhcp (client) on both
ethernet and wifi (for work and home).
Later in different environment I've configured second ethernet profile
manually. I want let it configured for future use in that environment but
now when I connect at work to ethernet I have to switch profile on ethernet
connection from manual profile to dhcp profile.
Is it way how to set priority on network profiles or set one profile
default? I couldn't find it in documentation.
Pavel Lisý <pavel.lisy(a)gmail.com>