Partitioning.md

related
cheat-sheet LVM

Disks

Listing devices

blkid
blkid -o list      # Including loop devices
blkid -k           # List of known filesystems and RAID types
blkid -i <device>  # List limits

Setting/Listing disk UUIDs

blkid                           # List all disks
findfs UUID=<id>                # Find specific id
ls -l /dev/disk/by-uuid/<id>

uuidgen                         # New id
tune2fs -U <id> /dev/sda1       # Setting id

Where to find different partition types

/dev/disk/by-uuid      -> MBR partitions
/dev/disk/by-partuuid  -> GPT partitions

Bootloader

UEFI Secure Boot

Diagnose with

efibootmgr -v

initramfs Update

update-initramfs -u

Grub Config Update

update-grub

ext2/ext3/ext4

Resizing

resize2fs /dev/sda1 <size>

Convert ext2 to ext3:

tune2fs -j /dev/hda1

Convert ext3 to ext4:

tune2fs -O extents,uninit_bg,dir_index /dev/sda1

Determine Inode Count:

tune2fs -l /dev/sda1 | grep Inode

Disable ext4 barriers:

Add "barrier=0" to the mount options.