LVM Partition Filesystem and Mount Checklist for RHCSA

halfbrain_logo512adminJune 19, 2026
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LVM Partition Filesystem and Mount Checklist for RHCSA

Storage is a major RHCSA area. System admins need to create partitions, physical volumes, volume groups, logical volumes, filesystems and persistent mounts without losing data.

Core principle

Storage has layers: disk, partition, physical volume, volume group, logical volume, filesystem and mount point. If one layer is missing, the storage path does not work.

Checklist

  1. Identify available disks.
  2. Create a partition safely.
  3. Create a physical volume.
  4. Create a volume group.
  5. Create a logical volume.
  6. Create a filesystem.
  7. Create a mount point.
  8. Mount the filesystem.
  9. Add persistent mount to fstab.
  10. Verify mount after reboot or remount test.

Reusable lesson

This applies to website storage, database storage, backup volumes, log partitions, Docker data volumes and cloud disk expansion.

Checklist Type Technical Setup
Level Intermediate
Risk Level Critical Risk
Estimated Time 60–150 minutes

When to Use This Checklist

Use this checklist when practicing RHCSA storage tasks or building Linux storage layouts for real servers.

Required Tools

Linux VM with extra disk, sudo access, lsblk, parted or fdisk, LVM tools, mkfs, mount, fstab backup

Before You Start

Practice storage tasks on a lab disk. Do not partition or format production disks without confirmed backup and disk identity.

Structured Checklist Steps

  1. Identify disk.
  2. Create partition.
  3. Create physical volume.
  4. Create volume group.
  5. Create logical volume.
  6. Create filesystem.
  7. Create mount point.
  8. Mount filesystem.
  9. Edit fstab.
  10. Verify mount.

Verification Steps

  1. Correct disk is used.
  2. LVM layers are visible.
  3. Filesystem mounts successfully.
  4. fstab entry is valid.
  5. Mount survives remount or reboot test.

Rollback Plan

If a new fstab entry prevents boot or mount, use rescue mode or console access to remove the bad entry and restore the previous fstab backup.

See also  Reverse Proxy Mental Model Checklist for Nginx and Docker

Common Mistakes

  • Formatting the wrong disk.
  • Skipping fstab backup.
  • Using device names that may change.
  • Not testing mount before reboot.
  • Confusing LV path with mount point.

Related Commands

lsblk
sudo pvcreate /dev/sdb1
sudo vgcreate data_vg /dev/sdb1
sudo lvcreate -n web_lv -L 5G data_vg
sudo mkfs.xfs /dev/data_vg/web_lv
sudo mkdir -p /data/web
sudo mount /dev/data_vg/web_lv /data/web
df -h
sudo cp /etc/fstab /etc/fstab.bak
sudo mount -a

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Disclaimer: The guides, checklists, commands, and examples on HalfBrain.net are provided for educational and operational reference only. Server environments, hosting providers, software versions, security settings, and WordPress configurations can vary, so you should always review commands before running them on your own system. We do our best to keep the content accurate and useful, but we cannot guarantee that every command, configuration, or recommendation will fit every environment. Always back up your website, database, and server configuration before making changes. HalfBrain.net is not responsible for data loss, downtime, security incidents, misconfiguration, or other issues that may result from applying the information on this website. Use the material at your own discretion.

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