Sending a desktop to a big screen
by Amit Prahesh
Hi there,
imagine a medium sized office room, where four engineers hack away (all of
them currently have Fedora 22 workstations, to stay on topic.) On that room
there's a fifth PC, hooked to a big TV on the wall (also running F22) that
has Firefox running full screen with some visualization of sorts (dashboard
thingy). Those five computers are all on the company wired network...
nothing you haven't seen a thousand times before.
Now, Sally, one of the engineers wants to share her desktop with the others
and uses application XYZ to project/cast/extend/send it to the big TV (via
its PC, of course). All of them discuss whatever was on her mind, and five
minutes later, she closes application XYZ and the office goes back as it
was before. Fred wants to do the same, and he does. Actually all of them
can.
They asked me what is XYZ.
I was thinking on a member of the VNC family, but what they want to do is
the reverse of what one normally do with VNC. To make things more...
interesting? XYZ must never go out of the corporate LAN and if it were Open
Source, the better.
Any ideas on XYZ?
Best regards,
Amit.
PS. Erm... one last thing. If there's a solution, could it include sending
the audio as well?
8 years, 9 months
dnf update vs Software Udpates
by Javier Perez
This is weird.
Software Updates on the Control Panel says that there are 39 updates
available
But when I run dnf update it says "Nothing to do". What gives?
JP
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------------------------------
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|O O| pepebuho(a)gmail.com
~~~~ Javier Perez
~~~~ While the night runs
~~~~ toward the day...
m m Pepebuho watches
from his high perch.
8 years, 9 months
Kernel panic in 4.1.2-200.fc22.x86_64
by Patrick O'Callaghan
This is happening every few minutes since I updated today:
Jul 30 18:26:21 Bree kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000288
Jul 30 18:26:21 Bree kernel: IP: [<ffffffff8120f034>] __kmalloc_node_track_caller+0x1c4/0x320
Going to try booting the previous kernel.
poc
8 years, 9 months
/boot and encrypted partitions?
by Dave Johansen
I was luck enough to be bitten by this issue (
https://bugzilla.redhat.com/show_bug.cgi?id=1212907 ) when attempting to do
a clean install of F22. I copied all of my data off and then tried manually
setting things up as separate partitions (instead of in an LVM) but it kept
telling me that /boot couldn't be on a LUKS partition. The config I had was
/home was encrypted and / was encrypted but then the biosboot partition was
not encrypted, and all 3 were standard partitions. Is this something that's
just not supported? Or was I doing something wrong?
Thanks,
Dave
8 years, 9 months
grub2 in fedora 22
by Patrick Dupre
Hello,
I had a bad surprise.
After the last update grub2-mkconfig -o /boot/grub2/grub.cfg
the grub.cfg is not correct
I have:
menuentry 'Fedora (4.1.2-200.fc22.i686+PAE) 22 (Twenty Two)' --class fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-4.1.2-200.fc22.i686+PAE-advanced-78c1373b-43b8-4706-8771-4bc5a2ea0fa4' {
set gfxpayload=text
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' fff6282e-eb24-405f-b43b-06ba5cc92c70
else
search --no-floppy --fs-uuid --set=root fff6282e-eb24-405f-b43b-06ba5cc92c70
fi
linux16 /vmlinuz-4.1.2-200.fc22.i686+PAE root=/dev/mapper/VolGrpSys0-root ro vconsole.keymap=fr rd.dm=0 rd.md=0 rd.luks=0 vconsole.font=latarcyrheb-sun16 rd.lvm.lv=VolGrpSys3/root
initrd16 /initramfs-4.1.2-200.fc22.i686+PAE.img
}
while it should be:
inux16 /vmlinuz-4.1.2-200.fc22.i686+PAE root=/dev/mapper/VolGrpSys0-root ro vconsole.keymap=fr rd.dm=0 rd.md=0 rd.luks=0 vconsole.font=latarcyrheb-sun16 rd.lvm.lv=VolGrpSys0/root
VolGrpSys0/root is a fedora 20.
where did grub2-mkconfig find this wrong information?
How can I fix it (i.e. not manually in gbub.cfg
Thank.
===========================================================================
Patrick DUPRÉ | | email: pdupre(a)gmx.com
Laboratoire de Physico-Chimie de l'Atmosphère | |
Université du Littoral-Côte d'Opale | |
Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44
189A, avenue Maurice Schumann | | 59140 Dunkerque, France
===========================================================================
8 years, 9 months
UEFI system: reboot does not work but shutdown -r now does
by Ranjan Maitra
Hi,
On a new UEFI-boot desktop running Fedora 22, the command (on a terminal prompt) "reboot" does not actually bring up the system. Actually, it is not clear that the system even goes down. What happens is that the monitor light goes off but the desktop light stays on -- and nothing happens. I don't even see the Fedora f/infinity bubble.
However, running "shutdown -r now" brings the Fedora f/infinity bubble, the lights switch and the system boots again.
What is the issue here? Any suggestions? I have never had this happen previously, but then this my first try at a UEFI system.
Is it possible to disable "reboot" -- i am concerned about "reboot"ing remotely by habit and accident and the system not coming up until being powered on.
I considered renaming the file /usr/sbin/reboot to something else, but then an update to systemd would likely break my "fix".
Many thanks and best wishes,
Ranjan
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8 years, 9 months
Mounting exfat usb stick
by JD
$ grep sdc1 /etc/fstab
UUID=BE5F-383B /sdc1 exfat noauto,rw,user,uid=508,gid=508
1 1
# cat /etc/fuse.conf
# mount_max = 1000
user_allow_other
$ mount /sdc1
FUSE exfat 1.0.1
fusermount: option blkdev is privileged
So I tried as root, and it mounted OK:
mount | grep sdc1
/dev/sdc1 on /sdc1 type fuseblk
(rw,nosuid,nodev,noexec,relatime,user_id=508,group_id=508,allow_other,blksize=4096)
then as root I tried to copy a file to /sdc1:
# cp rpms.list /sdc1/
cp: cannot create regular file ‘/sdc1/rpms.list’: No such file or directory
So, what else need I do so that regular users can mount and write to usb
sticks that are formatted as exfat FS?
These are the relevant rpms installed:
fuse-exfat-1.0.1-1.fc20.x86_64
exfat-utils-1.0.1-1.fc20.x86_64
8 years, 9 months
Fwd: Help a friend skip Windows 10 and try GNU/Linux
by JD
FYI
-------- Forwarded Message --------
Free Software Foundation
Dear ,
We can't stop all the millions of people who are installing Windows 10
right now, but we can influence our friends and family to skip Windows
and join us in the free world. As you know, Windows 10 puts those that
use it under the thumb of Microsoft, while free software treats users as
equals and gives them control over their digital lives.
*Pledge to help a friend switch to GNU/Linux today.
<https://www.fsf.org/windows/pledge>*
We've also created a new area on our site for people interested in
switching from Windows <https://www.fsf.org/windows>. Check it out, and
share it with your friends to get them excited about joining you in the
free world.
The FSF maintains a list of endorsed GNU/Linux distributions
<http://www.gnu.org/distros/free-distros.en.html>, and there are myriad
resources online for getting started. If your friend wants to try free
software but can't be persuaded to leave Windows quite yet, show them
these free programs that work on Windows
<http://www.gnu.org/software/for-windows.html>. If they're thinking
about buying a new computer, show them the laptops we certify through
our Respects Your Freedom program
<https://www.fsf.org/resources/hw/endorsement/respects-your-freedom>. If
they're the type that builds their own computer, they can use h-node
<https://h-node.org/>, the community-maintained database of computer
components that work well with free software.
We can't hope to match Microsoft's huge advertising budget, but if
you're on social media (see our recommendations
<https://www.fsf.org/share> for user-respecting social media systems)
you can help raise awareness of Windows' abuses and encourage people to
switch, in your own words. Help us jam Microsoft's ridiculous
#UpgradeYourWorld hashtag by including it in your posts encouraging
people to steer clear of Windows.
Zak Rogoff
Campaigns Manager
/Read online:
https://www.fsf.org/blogs/community/help-a-friend-skip-windows-10-and-try...
Follow us on GNU social <https://status.fsf.org/fsf> | Subscribe to our
blogs via RSS <https://fsf.org/blogs/RSS> | Join us as an associate
member <https://www.fsf.org/jf>
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8 years, 9 months
keyboard
by Patrick Dupre
Hello,
In fedora 22, where can I say to start the first graphics screen
(login) to load the right keyboard?
It is set properly in Setting > Region & Language > Input Screen
Every time that I logout out, it return to the wrong keyboard.
Is it something to set in grub?
In Fedora 20, this was OK.
Thank.
===========================================================================
Patrick DUPRÉ | | email: pdupre(a)gmx.com
Laboratoire de Physico-Chimie de l'Atmosphère | |
Université du Littoral-Côte d'Opale | |
Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44
189A, avenue Maurice Schumann | | 59140 Dunkerque, France
===========================================================================
8 years, 9 months