df command HowTo - Linux / Unix Q & A from nixCraft

How to automatically mount zfs file system on Linux/Unix/FreeBSD

last updated October 31, 2016 in Debian / Ubuntu, File system, FreeBSD, Ubuntu Linux, UNIX

I have created a zfs file system called data/vm_guests on Ubuntu Linux server. After the server reboot, zpools do not automatically mount at /data/vm_guests. It is failing my KVM guest machines. How can I mount my ZFS (zpool) automatically after the reboot?

Linux Check Disk Space Command To View System Disk Usage

last updated May 1, 2020 in CentOS, Debian / Ubuntu, Linux, RedHat and Friends, Suse

I recently switched from a Windows server to a Linux server operating system and need Linux check disk space command. I am using Ubuntu 16.04/18.04/20.04 and CentOS 7.x/8.x server. How do I find out disk space utilization information using Linux command line option?

How To See Characteristics of File Systems on Linux or Unix

last updated October 26, 2015 in AIX, CentOS, Debian / Ubuntu, HP-UX Unix, Linux, RedHat and Friends, Solaris-Unix, UNIX

How do I display the characteristics of file systems such as inodes, blocks, block size, file system name, state, lifetime writes, fsck status and more on Linux or Unix-like operating system?

Linux: Find Out How Much Disk Space Left On Hard Drive

last updated June 9, 2013 in BASH Shell, File system, Linux

I am a desktop support professional with experience working in a corporate call center environment. Recently, I started to admin RHEL based IBM Linux server. How do I determine how much disk space left in my Linux server? How do I find out how much disk space I have in Linux for each partition?

Linux WARNING: Duplicate VG name server1 LVM2 Error and Solution

last updated May 5, 2013 in Linux, Storage, Troubleshooting

I recently added SSD to my home server and reloaded the operating system. However, when I try to access my dm-crypt based old disk, I am getting the following error:

Reading all physical volumes. This may take a while... WARNING: Duplicate VG name server01: Existing bc7YA8-eEXt-1aA1-OHTr-zJkA-ucd0-DsbRTc (created here) takes precedence over RIKiar-w3MG-Gzh5-VFWq-bkRT-9IFc-ia8k87 WARNING: Duplicate VG name server01: Existing bc7YA8-eEXt-1aA1-OHTr-zJkA-ucd0-DsbRTc (created here) takes precedence over RIKiar-w3MG-Gzh5-VFWq-bkRT-9IFc-ia8k87 Found volume group "server01" using metadata type lvm2 Found volume group "server01" using metadata type lvm2

The problem is my volume group. I set to to server01 on both old and new hard disk. How can I rename old LVM2? How do I access my old hard disk?

Mount CD-ROM / DVD in HP-UX Unix

last updated May 7, 2012 in UNIX

How do I mount CD or DVD on HP-UX Unix operating systems?

Linux Command: Show Mounted Hard Drives Partition

last updated April 5, 2013 in Linux

How do I list or show all mounted devices in a terminal under Linux operating systems?