Recover from unintended dd
by Kalpa Welivitigoda
Hi all,
I wanted to create a live install media from by flash drive using dd.
Following is the command I used,
sudo dd bs=4M if=Fedora-Live-Desktop-x86_64-19-1.iso of=/dev/sdc1
The sad part is /dev/sdc1 happened to be my external hard disk (I wanted to
write the image to my flash disk), this was by mistake.
Now I cannot access files in my external hard disk. My hard disk is 1TB and
had only one partition. With this dd now it has two partitions (sdc1 and
sdc2), following are the outputs of trying to mount them,
$ sudo mount /dev/sdc1 abc/
mount: mount /dev/sdc1 on /tmp/abc failed: Structure needs cleaning
$ sudo mount /dev/sdc2 abc/
mount: /dev/sdc2 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sdc2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so.
I googled for the issue and read that it is hard to recover.
Have any of you experienced a similar situation and recovered?
Any help/clue to get the hard disk recovered is highly appreciated.
--
Best Regards,
Kalpa Welivitigoda
+94776509215
http://about.me/callkalpa
7 years, 5 months
fc23 python2-cryptography
by John Pilkington
yumex-dnf shows 1.5.3-3 as an update, but has errors in building the
transaction. I don't have an earlier version installed.
?
John P
7 years, 5 months
NPAPI Plugins and Firefox
by Stephen Morris
Hi,
I'm currently using Nightly V53 of Firefox and a lot of the plugins
provided by Fedora that I have installed Firefox refuses to use, this
included the Gnome Shell Integration plugin. It appears that as of
Firefox Release V52 onwards which appears to be scheduled for around the
end of the year, support for the NPAPI code set is being dropped for
everything except Flash, and Mozilla has indicated they will not budge
from that timeline even though a Commercial Application Vendor has
requested they delay the implementation until August/September 2017 so
that they can change their applications.
Is there any possibility that the plugins for this like the Gnome
Shell Integration, Totem etc can be rewritten to remove their NPAPI usage?
regards,
Steve
7 years, 5 months
Racket & Fedora
by Gour
Hello,
recently moved to Fedora and I’m a bit surprised that there is no
package for Racket language. Found
https://bugzilla.redhat.com/show_bug.cgi?id=1301219 and it seems nobody
is workin on it, so wonder if any Racketeers can suggest recommend way
to install/use Racket on Fedora (f25)?
Sincerely,
Gour
--
The humble sages, by virtue of true knowledge, see with equal
vision a learned and gentle brāhmana, a cow, an elephant, a dog
and a dog-eater.
7 years, 5 months
How Do I Upgrade from Fedora Workstation 23 to 24?
by Turritopsis Dohrnii Teo
Dear Fedora Users,
I have just downloaded and booted up the Fedora Workstation Live 24
DVD. It seems that there is no option to upgrade my existing Fedora
Workstation 23 to 24. The only option appears to be fresh new
installation in which I would lose all existing data.
Please advise me on how I can achieve upgrade installation with Fedora
Workstation 24 Live DVD.
Thank you very much.
Yours sincerely,
Mr. Turritopsis Dohrnii Teo En Ming (Zhang Enming) @ Time Traveller
Former old abandoned name: Mr. Teo En Ming (Zhang Enming)
SINGAPORE CITIZEN
Bachelor of Engineering (2nd Class Lower Honours) in Mechanical
Engineering with Aeronautics and Astronautics Option (Graduated from
National University of Singapore in December 2006)
Diploma in Mechatronics Engineering with Merit (Graduated from
Singapore Polytechnic in 1998)
Currently learning CISCO Switches and Routers, CISCO Internetworking
Operating System (IOS), Computer Networking, Network Operating
Systems, Microsoft Windows Server 2012 R2, Active Directory, DNS
Server and DHCP Server as a *hobby* at Singapore Polytechnic
(information accurate as at 16 November 2016)
Mobile Phone #1: +65-8692-1024 (M1 Mobile Postpaid)
Mobile Phone #2: +65-8712-7323 (Singtel Mobile Prepaid)
Email Address #1: teo.en.ming(a)gmail.com
Email Address #2: turritopsis.dohrnii.teo(a)gmail.com
Age: 38 years old
16th November 2016 Wednesday 11:25 AM Singapore Time
*I am an entry level/junior/beginner Information Technology (IT)
Specialist/Systems Engineer/Linux Server Administrator/Helpdesk
Support/Computer Technician/Android Enthusiast available for hire
anywhere in the world!!! Prospective employers, businesses and
companies in any part of the world please feel free to contact me for
my curriculum vitae/resume. I am also aspiring to be a network
engineer. On-job-training (OJT) opportunities are greatly appreciated.
Thank you very much.*
7 years, 6 months
/boot on btrfs
by Gour
Hello,
I plan to put Fedora very soon on my desktop machine to replace Debian,
but noticed that /boot on btrfs is not supported although, iirc, I was
using the same setup under both openSUSE and Debian when using btrfs.
At the moment I do use xfs/raid1, but considering to switch (back) to
btrfs since simplifies setup having features of both lvm+raid.
However, the need for separate /boot makes is a little cummbersome…there
is one issue in regard:
https://bugzilla.redhat.com/show_bug.cgi?id=864198 so wonder if there is
possibility to have support for /boot on btrfs in f25?
Sincerely,
Gour
--
A self-realized man has no purpose to fulfill in the discharge
of his prescribed duties, nor has he any reason not to perform
such work. Nor has he any need to depend on any other living being.
7 years, 6 months
centos 6.8 - time - digital ocean..
by bruce
Hey guys.
I know most of the questions are fed based.. but I've got a centos 6.8
from digital ocean testing..
So, bear with me..
In setting up the instance to use EST I did the following steps. Is
there anything else I missed...
Change the date/time (as root)
rm -rf /etc/localtime
ln -s /usr/share/zoneinfo/America/New_York /etc/localtime
##--set the date to the correct date
date -s 'actual/current date'
vi /etc/sysconfig/clock
ZONE="America/New_York"
UTC=false
ARC=false
I then rebooted, checked that the date cmd displayed the correct date...
I'm asking ,as I created a base instance of a Centos 6.8 image..
Digitalocean allows for the generation of "snapshots"/copies. The
copies can then be used to generate a clone of the initial
instance/droplet.
I did all of that, and lo/behold, when I run the date cmd..
I get
# date
Sat Nov 19 21:45:43 EST 2016 <<< (note the 5 hr ahead diff.. which if
i recall is the UTC time)
Instead of
# date
Sat Nov 19 16:45:43 EST 2016
Thanks for the sanity check!
7 years, 6 months
ssh/screen -- cmdline vs php
by bruce
Hey guys..
I crafted a test php app to generate the test cmdline to ssh into the
remote box, attach to the screen, and fire off the testApp...
This works as expected from the cmdline...
I
su - crawl_user,
then run the cmd, take a look on another term, that's set to the
ipAddress. When I attach to the screen.. I see the app running..
Checking the procTbl shows the app running as well...
However....
when I run the cmd from a test php... using backticks.. the remote
ssh/screen/app isn't run...
Any pointers on what I can look at to debug this..
the actual cmd that works on the cmdline::
ssh -t crawl_user(a)162.243.166.31 "screen -r crawlSession -X stuff
'/crawl_tmp/startCollegeCrawl_test_bycol.php --crawlDir /crawl_tmp
--nfsDir /cloud_nfs --nfsFetchDir /cloud_nfs_fetch --colName
austincc_0'$(echo -ne '\015') "
the test php that generates the above cmd...
//--run the bycol for the college, using the ipAddress..
$scmd="ssh -t crawl_user@".$bycol_ip_list[$cnt].' "screen -r
crawlSession -X stuff ';
$scmd=$scmd."'/crawl_tmp/startCollegeCrawl_test_bycol.php
--crawlDir /crawl_tmp ";
$scmd=$scmd."--nfsDir /cloud_nfs --nfsFetchDir /cloud_nfs_fetch ";
$scmd=$scmd."--colName ".$d."'$(echo -ne '\\015') ".'"';
print "bycol cmd .. ".$scmd."\n";
$scmd=`$scmd`;
print " stop..bycol sleeping prior to starting..\n";
exit();
thanks....
7 years, 6 months
X dies : glamor0: Failed to get GLSL version
by sean darcy
On F24, upgraded to today. I've just built a xeon E3-1245 V5 box , P530
graphics. X dies on startup. I've got the Mesa drivers installed.
Any help appreciated,
sean
..................
[ 3439.054] (II) LoadModule: "glx"
[ 3439.079] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[ 3439.104] (II) Module glx: vendor="X.Org Foundation"
[ 3439.104] compiled for 1.18.4, module version = 1.0.0
[ 3439.104] ABI class: X.Org Server Extension, version 9.0
[ 3439.104] (==) AIGLX enabled
[ 3439.104] (==) Matched intel as autoconfigured driver 0
[ 3439.104] (==) Matched intel as autoconfigured driver 1
[ 3439.104] (==) Matched modesetting as autoconfigured driver 2
[ 3439.104] (==) Matched fbdev as autoconfigured driver 3
[ 3439.104] (==) Matched vesa as autoconfigured driver 4
[ 3439.104] (==) Assigned the driver to the xf86ConfigLayout
[ 3439.104] (II) LoadModule: "intel"
[ 3439.104] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
[ 3439.178] (II) Module intel: vendor="X.Org Foundation"
[ 3439.178] compiled for 1.18.3, module version = 2.99.917
[ 3439.178] Module class: X.Org Video Driver
[ 3439.178] ABI class: X.Org Video Driver, version 20.0
[ 3439.178] (II) LoadModule: "modesetting"
[ 3439.178] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[ 3439.203] (II) Module modesetting: vendor="X.Org Foundation"
[ 3439.203] compiled for 1.18.4, module version = 1.18.4
[ 3439.203] Module class: X.Org Video Driver
[ 3439.203] ABI class: X.Org Video Driver, version 20.0
[ 3439.203] (II) LoadModule: "fbdev"
[ 3439.203] (II) Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
[ 3439.216] (II) Module fbdev: vendor="X.Org Foundation"
[ 3439.216] compiled for 1.18.0, module version = 0.4.3
[ 3439.216] Module class: X.Org Video Driver
[ 3439.216] ABI class: X.Org Video Driver, version 20.0
[ 3439.216] (II) LoadModule: "vesa"
[ 3439.216] (II) Loading /usr/lib64/xorg/modules/drivers/vesa_drv.so
[ 3439.225] (II) Module vesa: vendor="X.Org Foundation"
[ 3439.226] compiled for 1.18.0, module version = 2.3.2
[ 3439.226] Module class: X.Org Video Driver
[ 3439.226] ABI class: X.Org Video Driver, version 20.0
[ 3439.226] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[ 3439.226] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[ 3439.226] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[ 3439.226] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics:
5200, 6200, P6300
............
[ 3439.253] (II) Loading sub module "glamoregl"
[ 3439.253] (II) LoadModule: "glamoregl"
[ 3439.253] (II) Loading /usr/lib64/xorg/modules/libglamoregl.so
[ 3439.284] (II) Module glamoregl: vendor="X.Org Foundation"
[ 3439.284] compiled for 1.18.4, module version = 1.0.0
[ 3439.284] ABI class: X.Org ANSI C Emulation, version 0.4
[ 3439.284] (II) glamor: OpenGL accelerated X.org driver based.
[ 3439.481] (II) glamor: EGL version 1.4 (DRI2):
[ 3439.521] (II) modeset(0): glamor initialized
,,,,,,,,,,,
[ 3439.616] (WW) glamor0: Failed to get GLSL version
[ 3439.616] (EE) modeset(0): Failed to initialize glamor at
ScreenInit() time.
[ 3439.616] (EE)
Fatal server error:
[ 3439.616] (EE) AddScreen/ScreenInit failed for driver 0
7 years, 6 months
Howto reduce the size of /tmp as tmpfs?
by Frédéric Bron
/tmp uses 8 Gb, that is half of my RAM. Then my RAM is fully occupied
as soon as I open Plasma+Firefox+Thunderbird. But /tmp is used at 1%
only. Can I reduce it to 4Gb? I do not see any entry in /etc/fstab
(have F24).
Thanks,
Frédéric
7 years, 6 months
