Using nohup, “&” and disown in Linux

Linux has a few options on getting a command to run in background and if desired keep it running even if there is a terminal session interruption. So what's the difference and why you may use one vs. the other? To understand when and why lets take a look at what each once does in … Continue reading Using nohup, “&” and disown in Linux

ZFS command line reference (Cheat sheet)

Pool Related Commands # zpool create datapool c0t0d0Create a basic pool named datapool# zpool create -f datapool c0t0d0Force the creation of a pool# zpool create -m /data datapool c0t0d0Create a pool with a different mount point than the default.# zpool create datapool raidz c3t0d0 c3t1d0 c3t2d0Create RAID-Z vdev pool# zpool add datapool raidz c4t0d0 c4t1d0 … Continue reading ZFS command line reference (Cheat sheet)

Initial ODA Setup – Bare Metal (non-virtualized)

Older info but wanted to post anyway, I created this in 2013 Initial ODA Setup – Bare Metal (non-virtualized) Oracle Database Appliance - 2.X Supported Versions & Known Issues (Doc ID 888888.1)https://support.oracle.com/epmos/faces/SearchDocDisplay?_adf.ctrl-state=ub5o8i5pd_9&_afrLoop=125861182934599 Setup Host 1: From server node 0, run the validate script to confirm that the cabling is correct: [root@oak1 bin]# /opt/oracle/oak/bin/oakcli validate -c … Continue reading Initial ODA Setup – Bare Metal (non-virtualized)

Redhat 8 Boot Single User Mode via Serial Console

To boot into single user mode via the serial console you need to edit grub before it boots. When it starts booting you will see the grub menu, before it starts hit the "e" key to edit. You will see something similar as below. Change the information to whats shown below in BOLD ====================load_video set … Continue reading Redhat 8 Boot Single User Mode via Serial Console