Enable grub menu: edit the /etc/default/grub file and change the GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true to GRUB_HIDDEN_TIMEOUT=10 GRUB_HIDDEN_TIMEOUT_QUIET=false Save and call: sudo update-grub from a terminal, and reboot.
On Debian based systems like Ubuntu: # dpkg –list | grep linux-image To list / display current kernel Type the following command: # uname -r # uname -mrs
With rpm based OSes # rpm -qa kernel This will list the available kernels. To list / display current kernel Type the following command: # uname -r # uname -mrs
If an instance gets stuck in an intermediate state (e.g., “deleting”), you can manually reset the state of an instance using the nova reset-state command. This will reset it to an error state, which you can then delete. For example: $ nova reset-state c6bbbf26-b40a-47e7-8d5c-eb17bf65c485 $ nova delete c6bbbf26-b40a-47e7-8d5c-eb17bf65c485 You can also use the –active to force the instance back…
LTS is an abbreviation for “Long Term Support”. We produce a new Ubuntu Desktop and Ubuntu Server release every six months [diagram below]. That means you’ll always have the latest and greatest applications that the open source world has to offer. Ubuntu is designed with security in mind. You get free security updates for at…
The magic spell is : $sudo apt-get update; sudo apt-get upgrade
kickstart postinstall, you can read how to do this on the internet. wget http://foo/tools.tar.gz tar xzvf *.tar.gz cd directory-where-you-untarred vmware-tools-install.pl -d BINGO ! Giggidi Giggidi
Installing SNMP daemon and tools: As root yum -y install net-snmp.i686 yum -y install net-snmp-utils Once these are installed start the snmp daemon: /etc/init.d/snmpd start chkconfig snmpd on This is just the basic install but testing it : snmpwalk -v 1 -c public -O e 127.0.0.1 For production servers it is advisable to at least…
It is sometimes useful not only to know your repo list covers you for all the stack of software you want but also where does a package actually reside. The repoquery command comes to the rescue.
EPEL stands for Extra Packages for Enterprise Linux. This is a massive collection of packages that are very useful for the building of many modern stacks and include many tools for the running and maintenance of systems. The homepage of EPEL is here: http://fedoraproject.org/wiki/EPEL. You can browse the package set using repoview: EPEL 6: i386, x86_64, ppc64, sources EPEL 5: i386, x86_64, ppc, sources Installing on…
