xfs – Uly.me

July 16, 2021

Resizing XFS root partition in GCP

How to resize a root partition in GCP.

Increase disk size.

gcloud compute disks resize server-boot-disk-name \
--size=50GB \
--zone us-central1-c \
--project your-project-id

Run growpart.

growpart /dev/sda 1

Run xfs_growfs.

xfs_growfs /dev/sda1

To verify, run these.

lsblk
df -Th

March 31, 2020

Here’s how to setup a XFS volume.

file -s /dev/nvme2n1
mkfs -t xfs /dev/nvme2n1

Mount to /data.

mkdir /data
mount /dev/nvme2n1 /data

Add to /etc/fstab.

vim /etc/fstab
#
#
UUID=xxxxxxxxxxxxxxxxxxxxxx /data  xfs  defaults 0 0

March 28, 2020

To see which disk is available for swap disk use.

lsblk
blkid
df -Th

Format the disk.

fdisk /dev/xvda

Create a swap disk.

sudo mkswap -f /dev/xvda
sudo swapon -s /dev/xvda
# or
sudo swapon /dev/xvda

Check if swap disk is available.

lsblk
free -h 
cat /proc/swaps
cat /proc/meminfo
swapon -s
top
vmstat
vmstat 1 5

October 7, 2019

Here’s how to fix a duplicate UUID on a XFS file system.

mount -o rw,nouuid /dev/sda1  /data

Mounting with nouuid will work, but not after a reboot.

To avoid a duplicate ID, run this command to generate a new UUID.

xfs_admin -U generate /dev/sda3
Clearing log and setting UUID
writing all SBs
new UUID = xxxxx-xxxx-xxxx-xxxxxxxxx

April 30, 2019

File system command differences between ext3 and xfs.

Task	ext4	xfs
Creating a file system	mkfs.ext4	mkfs.xfs
Mounting a file system	mount	mount
Resizing a file system	resize2fs	xfs_growfs
Repairing a file system	e2fsck	xfs_repair
Changing the label on a file system	e2label	xfs_admin -L
Reporting on disk space and file usage	quota	quota
Debugging a file system	debugfs	xfs_db
Saving critical file system metadata to a file	e2image	xfs_metadump