CENTOS7 |

Dealing with Spectre and Meltdown using Ansible

Jan 5, 2018 · 1 min read · SPECTRE MELTDOWN ANSIBLE CENTOS7 ·

If we have to deal with this thing, lets do it in an intelligent way I'm using Ansible across my infrastructure to manage most stuff so I cut a playbook to detect Spectre and Meltdown fixes in Centos7 using the articles from CyberCiti.biz …

MegaCLI on CentOS 7

Oct 12, 2016 · 1 min read · MEGACLI CENTOS7 ·

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Installation 1Yum install Lib_Utils-1.00-08.noarch.rpm MegaCli-8.01.06-1.i386.rpm (i386 binary works ok on x64 servers) List all controllers 1/opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aALL List all physical disks 1/opt/MegaRAID/MegaCli/MegaCli64 -PDlist -a0 | grep -e '^Enclosure Device ID:' -e '^Slot …

Fibre Channel in Linux(CentOS7)

Aug 29, 2016 · 2 min read · LINUX CENTOS7 FIBRECHANNEL ·

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Get the WWN of the controller 1cd /sys/class/fc_host/host5/ 2 3[root@ibm2 host5]# cat node_name 40x200000051e8e53aa Rescan the FC bus. 1cd /sys/class/fc_host/host5/ 2echo "1" >; issue_lip OR 1yum install sg3_utils 2 3rescan-scsi-bus.sh List disks 1[root@hp by-path]# sscsi 2[0:0:0:0] disk ATA WDC WD4000FYYZ-0 …

Centos 7 UEFI things

Jul 26, 2016 · 1 min read · CENTOS7 UEFI ·

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How to tell if you booted from a UEFI enabled machine 1dmesg | grep "EFI v" When enabling net.ifnames=o Edit /etc/default/grub Ammend line GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=centos/root crashkernel=auto vconsole.keymap=us rhgb quiet net.ifnames=0` Then run …