Author:
erics , April 17th, 2023
First, use the AWS Console to modify the volume to the desired size, in our example we want to go from 10GB to 25GB for the root filesystem For a Xen ext4 root volume
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# df -h
Filesystem Size Used Avail Use % Mounted on
/ dev / xvda1 9.8G 9.6G 26M 100 % /
/ dev / xvdf 200G 99G 102G 50 % / volumes / data
# lsblk
NAME MAJ : MIN RM SIZE RO TYPE MOUNTPOINT
xvda 202 : 0 0 10G 0 disk
└─xvda1 202 : 1 0 10G 0 part /
xvdf 202 : 80 0 200G 0 disk / volumes / data
# growpart /dev/xvda 1
CHANGED : disk = / dev / xvda partition = 1 : start = 4096 old : size = 20967390 , end = 20971486 new : size = 52424670 , end = 52428766
# lsblk
lsblk
NAME MAJ : MIN RM SIZE RO TYPE MOUNTPOINT
xvda 202 : 0 0 25G 0 disk
└─xvda1 202 : 1 0 25G 0 part /
xvdf 202 : 80 0 200G 0 disk / volumes / data
# resize2fs /dev/xvda1
resize2fs 1.43.5 ( 04 - Aug - 2017 )
Filesystem at / dev / xvda1 is mounted on / ; on - line resizing required
old_desc_blocks = 1 , new_desc_blocks = 2
The filesystem on / dev / xvda1 is now 6553083 ( 4k ) blocks long .
# df -hT
Filesystem Type Size Used Avail Use % Mounted on
/ dev / xvda1 ext4 25G 9.6G 15G 40 % /
/ dev / xvdf xfs 200G 99G 102G 50 % / volumes / data
For NVMe First, use lsblk to see the raw partitions:
# df -hT
Filesystem Type Size Used Avail Use % Mounted on
/ dev / nvme0n1p1 xfs 20G 2.8G 18G 14 % /
# lsblk
NAME MAJ : MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259 : 0 0 40G 0 disk
├─nvme0n1p1 259 : 1 0 20G 0 part /
└─nvme0n1p128 259 : 2 0 1M 0 part
Note how the partition at 259:1 is only 20GB, […]
How-To's , Technology Tags: Amazon , Amazon Linux 2 , AWS , df , df -hT , Disk , EBS , Expand , Filesystem , Grow , howto , Linux , Linux2 , lsblk , NVMe , partition , Resize , tips , volume , XFS No comments
Author:
erics , February 19th, 2021
First, use lsblk to see the raw partitions:
# df -hT
Filesystem Type Size Used Avail Use % Mounted on
/ dev / nvme0n1p1 xfs 20G 2.8G 18G 14 % /
# lsblk
NAME MAJ : MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259 : 0 0 40G 0 disk
├─nvme0n1p1 259 : 1 0 20G 0 part /
└─nvme0n1p128 259 : 2 0 1M 0 part
Note how the partition at 259:1 is only 20GB, while the entire disk at 259:0 is 40GB. A partition resize is required in this case.
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# sudo growpart /dev/nvme0n1 1
CHANGED : partition = 1 start = 4096 old : size = 41938911 end = 41943007 new : size = 83881951 end = 83886047
# lsblk
NAME MAJ : MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259 : 0 0 40G 0 disk
├─nvme0n1p1 259 : 1 0 40G 0 part /
└─nvme0n1p128 259 : 2 0 1M 0 part
# df -hT
Filesystem Type Size Used Avail Use % Mounted on
/ dev / nvme0n1p1 xfs 20G 2.8G 18G 14 % /
# sudo xfs_growfs -d /
meta - data = / dev / nvme0n1p1 isize = 512 agcount = 11 , agsize = 524159 blks
= sectsz = 512 attr = 2 , projid32bit = 1
= crc = 1 finobt = 1 spinodes = 0
data = bsize = 4096 blocks = 5242363 , imaxpct = 25
= sunit = 0 swidth = 0 blks
naming = version 2 bsize = 4096 ascii - ci = 0 ftype = 1
log = internal bsize = 4096 blocks = 2560 , version = 2
= sectsz = 512 sunit = 0 blks , lazy - count = 1
realtime = none extsz = 4096 blocks = 0 , rtextents = 0
data blocks changed from 5242363 to 10485243
# df -hT
/ dev / nvme0n1p1 xfs 40G 2.8G 38G 7 % /
If the XFS tools are not already installed , you can install them as follows :
sudo yum install xfsprogs
For an EXT4 filesystem, use the resize2fs command instead:
sudo resize2fs / dev / nvme0n1p1
For more information, please visit the AMW Docs: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/recognize-expanded-volume-linux.html
How-To's , Technology Tags: Amazon , Amazon Linux 2 , AWS , df , df -hT , Disk , EBS , Expand , Filesystem , Grow , howto , Linux , Linux2 , lsblk , NVMe , partition , Resize , tips , volume , XFS No comments
Author:
erics , April 24th, 2018
https://linux.die.net/man/8/lsblk # lsblk -a
NAME MAJ : MIN RM SIZE RO TYPE MOUNTPOINT
nvme1n1 259 : 0 0 100G 0 disk / volumes / data
nvme0n1 259 : 1 0 20G 0 disk
├─nvme0n1p1 259 : 2 0 20G 0 part /
└─nvme0n1p128 259 : 3 0 1M 0 part
How-To's , Technology Tags: Amazon , Attached , AWS , Device , Disk , Drive , Find , howto , Linux , Locate , lsblk , tips No comments
Author:
erics , October 12th, 2017
Reposted from https://mcbguru.blog/2017/10/12/macos-high-sierra-disk-space/ The new APFS creates snapshots during local Time Machine backups, and this can mean, especially if you’be been dealing with some large files, that when you delete them and empty the wastebasket, you don’t get your disk space back. The key is to look at your local backups, and the easiest method […]
How-To's , Technology Tags: APFS , backup , Disk , Disk Space , High Sierra , howto , MacOS , Sierra , Snapshot , Space , Time Machine , tips , tmutil No comments
Author:
erics , December 8th, 2015
As always, YMMV…
#!/bin/bash
# Usage: eject [fullpath to mount point]
DISK = "${1:-/Volumes/YourUSBFlashDriveName/}"
df - h "$DISK" > / dev / null 2 > & 1
if [ $ ? - eq 0 ] ; then
diskutil unmountDIsk ` diskutil list "$DISK" | grep ^ / dev / `
else
echo Volume $DISK is not mounted . . .skipping .
fi
How-To's , Technology Tags: apple , bash , cli , Command , Command line , Disk , diskutil , Drive , eject , Flash , howto , List , Mac , macosx , mount , Terminal , tips , umount , unmount , unmountDisk , USB , volume No comments
erics, April 17th, 2023 
Categories: How-To's, Technology Amazon, Amazon Linux 2, AWS, df, df -hT, Disk, EBS, Expand, Filesystem, Grow, howto, Linux, Linux2, lsblk, NVMe, partition, Resize, tips, volume, XFS
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