AWS (Linux)

Enable password login

Add a user

  • sudo adduser [user name]
  • sudo password [user name]

Change user name

Add sudo user

Steps to expand EBS disk size

  1. Modify the size in the Volume page

  2. sudo yum install xfsprogs

  3.  [ec2-user ~]$ lsblk
 NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
 xvda    202:0    0  30G  0 disk
 └─xvda1 202:1    0  30G  0 part /
 xvdb    202:16   0  30G  0 disk /mnt
 xvdf    202:80   0  35G  0 disk
 └─xvdf1 202:81   0   8G  0 part
 [ec2-user ~]$ df -h
 Filesystem            Size  Used Avail Use% Mounted on
 /dev/xvda1            8.0G  943M  6.9G  12% /
 tmpfs                 1.9G     0  1.9G   0% /dev/shm
 /dev/xvdf            1014M   33M  982M   4% /mnt
 [ec2-user ~]$sudo growpart /dev/xvdf 1
 CHANGED: disk=/dev/xvdf partition=1: start=4096 old: size=16773086,end=16777182 new: size=73396190,end=73400286
 [ec2-user ~]$ sudo xfs_growfs -d /mnt
 meta-data=/dev/xvdf              isize=256    agcount=4, agsize=65536 blks
         =                       sectsz=512   attr=2
 data     =                       bsize=4096   blocks=262144, imaxpct=25
         =                       sunit=0      swidth=0 blks
 naming   =version 2              bsize=4096   ascii-ci=0
 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 262144 to 26214400