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Questions tagged [redhat]

For issues relating to Red Hat platforms, products, and/or services.

Red Hat, Inc. is a company in the free and open source software sector, and a major Linux distribution vendor. Red Hat has become associated to a large extent with its enterprise operating system Red Hat Enterprise Linux () and with the acquisition of open-source enterprise middleware vendor . Red Hat provides operating-system platforms along with middleware, applications, and management products, as well as support, training, and consulting services.

For questions on a specific Red Hat products, consider using the tag for that product.

Community

Red Hat was acquired by IBM in July 2019.

3924 questions
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Ansible: have sudo but no root

I’d like to use Ansible to manage the configuration of a our Hadoop cluster (running Red Hat). I have sudo access and can manually ssh into the nodes to execute commands. However, I’m experiencing problems when I try to run Ansible modules to…
Alex Woolford
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epoll_ctl() failed: No such file or directory [errno = 2]

Recently updated the Linux kernel from 2.6.18 to 2.6.32, and an existing application starts error out with following error message: epoll_ctl() failed: No such file or directory [errno = 2]. I did read through the linux man page on epoll_ctl but…
Feng Deng
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How to get the file creation date/time in xfs

I am able to get the file creation date/time using debugfs command in ext file system but how to check/get the same in XFS file system.
Sriharsha Kalluru
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How to tell Docker to use dm/LVM backend for volumes instead of vfs

I recently heard (from a RedHat guy) that "direct-LVM"(devicemapper) is the recommended storage-backend for production setups, so I wanted to try that out on a CentOS 7 VM. (where loopback-LVM seems to be the default). So I created a separate…
powo
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How do I kill a Python multiprocessing job?

In reference to this question I had asked, I can successfully run jobs using multiprocessing and I can see that all processors are being utilized. How do I kill this job? From terminal I run: python my_multiprocessor_script.py Then I hit Ctrl+C to…
ADJ
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ltrace: Couldn't find .dynsym or .dynstr in "library.so"

I have tried to use the ltrace. I tried to use the following command to profile the library.so file which is used by a program sampleapp, ltrace -c -T --library=library.so --output=out.txt ./SampleApp. But it shows the above error. But library.so is…
Tahlil
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What is the official way to install Haskell Platform 2014, from source, on Red Hat?

I am trying to install Haskell Platform 2014.2.0.0 from source on Red Hat Enterprise Linux 6.5. I have a functional install of Haskell Platform 2012.4.0.0 and GHC 7.4.2 from two years ago, plus a recently-installed Haskell Platform 2013.2.0.0 and…
M B
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"Missing separate debuginfos" in non-root account

I have the same problem as reported here: Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.47.el6_2.9.i686 libgcc-4.4.6-3.el6.i686 libstdc++-4.4.6-3.el6.i686 However, I am not the root user so I can't just run debuginfo-install ....…
quant
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Which yum group(s) contain a given package?

Is there a way to ask yum which group(s) contain a given package? I know how to ask what packages are in a given group, and could write a quick script to trawl over all of the groups, but it would be nice to have a simpler mechanism than that.
John Rix
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Red Hat linux - "turn off" encryption checking

I have a Red Hat 6.5 Linux implementation that uses LUKS to encrypt the system and - for reasons that aren't relevant - I would like to "turn off" boot encryption checking for a period of time. It will be turned on again at some point so even if it…
Pancho
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gedit unresponsive how to save my file?

I have created a document and have not saved it yet. The gedit has become unresponsive. Is there anyway I can save or get the content of my file before killing the process?
ComeRun
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Best way to write an init.d script for start_server and starman?

I'm trying to come up with a nice init.d script that starts a psgi app, using start_server and starman. It needs to have the following features: Run on RedHat (i.e. Debian's start-stop-daemon is not available) Run start_server as another user Be…
innaM
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How to install yum in Red Hat 3.4.6-3

I want to use the yum command in Red Hat 3.4.6-3. How can I install it?
Bilal
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why firefox won't start up under selenium 2 webdriver on redhat 5.6

I was wondering if anyone has any ideas on how I could find out why I can seem to get firefox running through selenium webdriver. What happens is when I run: self.driver=webdriver.Firefox() I get a blank dialogue on my desktop. I am running on…
amadain
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How do I subscribe to supplementary server channel to install sun jdk 6 on RHEL 4.x

I want to install sun jdk 6 on RHEL 4.x using yum install java-1.6.0-sun-devel but found that I have to subscribe to supplementary server channel. How do I do that? Thanks in Advance!
mssrivatsa
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