Xen: Passing kernel parameters to DomUs

How to pass kernel parameters to Xen DomUs ?

Kernel paremeter may be needed to be passed to a Xen DomU. For example, when the DomU fails to boot and we want to check it in ‘single’ mode.

We can simply start the DomU with the “extra=” syntax. For example, to add ‘single’ to the kernel parameters of DomU:

# xm create domu-vm.cfg extra="single"

To make it permanent for the VM, we can add

extra="single"

to the VM’s configuration file domu-vm.cfg.

Similar Posts

  • Installing Dropbox on Linux

    How to install Dropbox on Linux ? Just follow Dropbox’s instruction here: https://www.dropbox.com/install?os=lnx A quick command for 64-bit Linux: $ cd ~ && wget -O – “https://www.dropbox.com/download?plat=lnx.x86_64” | tar xzf – Use the dropx CLI: http://www.dropboxwiki.com/Using_Dropbox_CLI Download dropbox.py: $ wget -O ~/bin/dropbox.py “https://www.dropbox.com/download?dl=packages/dropbox.py” Set the permissions: $ chmod +x ~/bin/dropbox.py Start Dropbox: $ dropbox.py start Status:…

  • Patching with git

    Tutorials on how to create patches and apply patches with git. A nice tutorial: https://ariejan.net/2009/10/26/how-to-create-and-apply-a-patch-with-git/ Manuals: git format-patch: https://www.systutorials.com/docs/linux/man/1-git-format-patch/git apply: https://www.systutorials.com/docs/linux/man/1-git-apply/ Read more: How to create a git branch on remote git server How to do diff like `git diff –word-diff` without git on Linux? Cheatsheet: Git Branching with a Git Server What about the…

  • Vim: case insensitive search

    By default, Vim does case sensitive search. How to make case-insensitive search in Vim? By default, Vim does case sensitive search. :set ignorecase can set Vim to conduct case insensitive search. However, it also affects substitutions, which is not we want However, how to do a case insensitive search only when it is needed? Use…

  • MySQL at Facebook

    Facebook uses lots MySQL databases. Any information about how Facebook scales MySQL? Some information on the Web: MySQL at Facebook’s page https://www.facebook.com/MySQLatFacebook?filter=1 A post by Ryan Thiessen, Database Operations at Facebook on Quora: http://www.quora.com/Facebook-Engineering/How-does-Facebook-structure-MySQL-so-that-it-is-robust-and-scalable And more: http://mashable.com/2011/12/15/facebook-timeline-mysql/ http://gigaom.com/2011/12/06/facebook-shares-some-secrets-on-making-mysql-scale/ http://www.wired.com/wiredenterprise/2011/12/facebook-timeline-anatomy “A lot of people are surprised that for this shiny new thing for Facebook, we’re using…

Leave a Reply

Your email address will not be published. Required fields are marked *