LVM: creating a new LV from unallocated space

A logical volume provides storage virtualization so you are not restricted to physical disks sizes. The hardware storage configuration is hidden and the logical volume can be resized and moved on the fly. An LVM Logical Volume has three components: Physical Volumes (PV) Volume Groups (VG) Logical Volumes (LV) First of all, you have to… Continue reading “LVM: creating a new LV from unallocated space”

Common partitions and filesystem layout

swap not mounted, 1-2 times the RAM size /home holds users’ data files /boot holds critical boot files /usr holds most Linux program data files /usr/local holds Linux program and data files that are unique to the current installation /opt third part packages /var misc files associated with day-to-day tasks /tmp temporary files created by… Continue reading “Common partitions and filesystem layout”

Linux partitioning system

MBR was the most used until 2010, it stores data in the first sector of the disk and it’s limited to 2TiB partitions. GPT (GUID Partition Table) has much higher limits. MBR partitions The original x86 allowed only four partitions, but this scheme was extended. The new scheme uses three partition types: primary partitions extended… Continue reading “Linux partitioning system”