bashANYlsblkinventoryblock-devices
bash
lsblkShow disks, partitions, loop devices, and mountpoints.
Linux Disk Storage Cheat Sheet
Disk inventory, partitions, formatting, and capacity analysis for Linux systems.
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Inventory and Capacity
Inspect block devices, filesystems, and space usage.
bashANYlsblkfilesystemuuid
bash
lsblk -fDisplay filesystem type, label, UUID, and mountpoint.
Select custom lsblk columns
Useful when you want clean inventory output for documentation or scripts.
bashANYlsblkcolumnsinventory
bash
lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINTS,UUID,MODELUseful when you want clean inventory output for documentation or scripts.
bashANYblkiduuidfilesystem
bash
blkidRead known filesystem, RAID, and partition metadata.
bashANYfindmntmountinventory
bash
findmntDisplay the live mount tree with source, target, and options.
bashANYfindmntmountdevice
bash
findmnt -S /dev/sda1Filter the mount table by source device.
bashANYdfspacecapacity
bash
df -hDisplay used and available capacity in human-readable units.
bashANYdfinodescapacity
bash
df -iCheck inode exhaustion when space looks free but writes fail.
bashANYduspacedirectory
bash
du -sh .Estimate disk usage for the current directory tree.
bashANYdusortdisk-usage
bash
du -xh --max-depth=1 /var | sort -hGreat first pass for finding where storage is going.
Show filesystem stats for a path
Inspect block size, available blocks, and filesystem ID for a mounted path.
bashANYstatfilesysteminspect
bash
stat -f /varInspect block size, available blocks, and filesystem ID for a mounted path.
bashANYfiledevicesignature
bash
file -s /dev/sdbRead magic signatures from a block device or image.
Partitions and Labels
Create, inspect, and label partitions.
bashANYfdiskpartitioninventory
bash
sudo fdisk -lShow disks, sector sizes, partition tables, and partitions.
bashANYfdiskpartitioninteractive
bash
sudo fdisk /dev/sdbInteractive MBR/GPT partitioning for a specific disk.
bashANYpartedpartitioninventory
bash
sudo parted /dev/sdb printDisplay partition table details using parted.
bashANYpartedgptpartition
bash
sudo parted /dev/sdb mklabel gptInitialize a disk with a GPT partition table.
bashANYpartedmkpartpartition
bash
sudo parted -a optimal /dev/sdb mkpart primary ext4 1MiB 100%Create a partition aligned for modern disks.
bashANYpartprobepartitionkernel
bash
sudo partprobe /dev/sdbRefresh partition table changes without rebooting.
bashANYsfdiskbackuppartition
bash
sudo sfdisk -d /dev/sdb > sdb.partitionsUseful for backups and repeatable partition layouts.
bashANYsfdiskrestorepartition
bash
sudo sfdisk /dev/sdb < sdb.partitionsReplay a previously exported partition layout.
bashANYwipefssignaturedisk
bash
sudo wipefs /dev/sdbSee what signatures exist before repurposing a disk.
bashANYwipefserasesignature
bash
sudo wipefs -a /dev/sdbRemove existing filesystem, RAID, or partition signatures.
bashANYblkidpartuuiduuid
bash
blkid -o export /dev/sdb1Good for preparing stable fstab entries.
Wait for udev after partition changes
Wait until udev finishes processing newly created partitions.
bashANYudevadmudevpartition
bash
sudo udevadm settleWait until udev finishes processing newly created partitions.
Format, Label, and Tune
Create filesystems and inspect or tune metadata.
bashANYmkfsext4filesystem
bash
sudo mkfs.ext4 /dev/sdb1Format a partition as ext4.
bashANYmkfsxfsfilesystem
bash
sudo mkfs.xfs /dev/sdb1Format a partition as XFS.
bashANYmkfsvfatfilesystem
bash
sudo mkfs.vfat -F 32 /dev/sdb1Useful for EFI partitions or removable media.
bashANYmkswapswapfilesystem
bash
sudo mkswap /dev/sdb2Initialize a partition or file as swap.
bashANYe2labellabelext4
bash
sudo e2label /dev/sdb1 dataAssign a human-readable label to an ext filesystem.
bashANYxfs_adminlabelxfs
bash
sudo xfs_admin -L data /dev/sdb1Assign a label to an XFS filesystem.
bashANYtune2fsext4metadata
bash
sudo tune2fs -l /dev/sdb1Inspect features, UUID, mount count, and reserved blocks.
bashANYtune2fsreserved-blocksext4
bash
sudo tune2fs -m 1 /dev/sdb1Lower reserved space on large non-root data volumes.
bashANYdumpe2fssuperblockext4
bash
sudo dumpe2fs -h /dev/sdb1Show ext superblock and journal settings.
bashANYxfs_infoxfsgeometry
bash
sudo xfs_info /mnt/dataDisplay XFS geometry and feature flags.
bashANYswaponswap
bash
sudo swapon /dev/sdb2Turn on swap after creating it.
bashANYswaponswapinventory
bash
swapon --showInspect active swap devices and priorities.
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