Ubuntu – cloud-init does not grow the partition nor the filesystem

centoscloud-initopenstackpackerUbuntu

I am currenty preparing OpenStack-ready images of CentOS 7 and Ubuntu 14.04.

For the "automation" I use Packer, which is provided by you with a JSON-template. Packer then starts the installation using the virtualization you specify (in my case qemu).

After the installation, the virtual machine is being provisioned via SSH by Packer and the scripts you supply.

The status:

The root disk has 3 GB.
One partition, ext4, boot-flag, 100% of the root disk.

What I am trying to achieve here:

The image should resize itself on the first start to the max size of the disk

The Problem:

It does not work.
It does not matter if I install only cloud-init or cloud-init and cloud-utils or cloud-init and cloud-utils and cloud-utils-growpart.
I do not change the default cloud-init config, apart from enabling the root-login via ssh.

My cloud-init config is standard, apart from this line

disable_root: 0

Question: has someone already done this? I can't seem to find a working example

Best Answer

I just fixed the same problem. My vmbuilder created an image with a root partition followed by a swap partition. cloud-utils-growpart can't grow the root partition if there's one immediately after it. I deleted the swap partition and the root partition resized correctly on reboot

Related Solutions

Linux – How to configure ssh access for an unattended linux-distro ISO image for local development env similar to accessing cloud service VM instances

You could pre-install the Userify agent on the ISO's. These will keep your SSH keys updated over time and allow you to create users (sudo perms, etc) remotely. It only needs outbound HTTPS, so it should easily work from a VM unless you've shut off outbound net access.

(centOS) cloud-init not pulling ssh

OpenStack qcow config files are very picky. Syntax have to be in exact format. (Spacing, etc).

[/etc/cloud/cloud.cfg]

system_info:
  default_user:
    name: centos
    lock_passwd: true
    gecos: Cloud User
    groups: [wheel, adm]
    sudo: ["ALL=(ALL) NOPASSWD:ALL"]
    shell: /bin/bash
  distro: rhel
  paths:

password: centos
chpasswd: { expire: False }
ssh_pwauth: True

[/boot/grub/menu.lst - WORKED]

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda3
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
serial --unit=0 --speed=115200
terminal --timeout=10 console serial
hiddenmenu
title CentOS 6 (2.6.32-504.el6.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.32-504.el6.x86_64 ro root=UUID=a396de13-a505-4356-be47-14e9e600b9f9 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet console=tty0 console=ttyS0,115200n8
        initrd /initramfs-2.6.32-504.el6.x86_64.img

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda2
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
serial --unit=0 --speed=115200
terminal --timeout=10 console serial
hiddenmenu
title CentOS 6 (2.6.32-504.el6.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.32-504.el6.x86_64 ro root=UUID=93432822-56e1-4f94-91f3-60fd80b9bfb1 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet console=tty0 console=ttyS0,115200n8
        initrd /initramfs-2.6.32-504.el6.x86_64.img

[BAM]

  ci-info: +-------+-------------+----------+---------------+-----------+-------+
ci-info: | Route | Destination | Gateway  |    Genmask    | Interface | Flags |
ci-info: +-------+-------------+----------+---------------+-----------+-------+
ci-info: |   0   |   10.6.1.0  | 0.0.0.0  | 255.255.255.0 |    eth0   |   U   |
ci-info: |   1   | 169.254.0.0 | 0.0.0.0  |  255.255.0.0  |    eth0   |   U   |
ci-info: |   2   |   0.0.0.0   | 10.6.1.1 |    0.0.0.0    |    eth0   |   UG  |
ci-info: +-------+-------------+----------+---------------+-----------+-------+
Starting cloud-init: Cloud-init v. 0.7.5 running 'modules:config' at Fri, 13 Nov 2015 22:07:32 +0000. Up 27.57 seconds.
Starting cloud-init: Cloud-init v. 0.7.5 running 'modules:final' at Fri, 13 Nov 2015 22:07:33 +0000. Up 29.43 seconds.
ci-info: ++++++++++Authorized keys from /home/centos/.ssh/authorized_keys for user centos+++++++++++
ci-info: +---------+-------------------------------------------------+---------+-------------------+
ci-info: | Keytype |                Fingerprint (md5)                | Options |      Comment      |
ci-info: +---------+-------------------------------------------------+---------+-------------------+
ci-info: | ssh-rsa | d7:78:f4:82:71:f8:cd:4e:75:d9:ca:fd:57:f6:74:82 |    -    | Generated-by-Nova |
ci-info: +---------+-------------------------------------------------+---------+-------------------+
ec2: 
ec2: #############################################################
ec2: -----BEGIN SSH HOST KEY FINGERPRINTS-----
ec2: 1024 52:ef:33:97:49:d5:ac:b0:5a:59:7f:8f:80:f1:9e:d9 /etc/ssh/ssh_host_dsa_key.pub (DSA)
ec2: 2048 4d:9f:c3:05:cc:9a:3b:37:c5:0a:27:8e:08:9c:e8:61 /etc/ssh/ssh_host_key.pub (RSA1)
ec2: 2048 41:e7:fd:3d:b4:26:b3:cb:6f:f8:cb:6a:31:60:92:94 /etc/ssh/ssh_host_rsa_key.pub (RSA)
ec2: -----END SSH HOST KEY FINGERPRINTS-----
ec2: #############################################################
-----BEGIN SSH HOST KEY KEYS-----
2048 35 28659583872114087976099838274719927140869079419780503337263195789109684665038761091997527137778426128641191506639125305991400855664175743627494850540768477052209487077522869031392495953447137918345409881017192368218757431758100317916696564401124818390566713036518484896494211408975565244454688550594124991034514079830180604880730593285771111372620489778017011638099267706767457481638139820921787639093793302084558052828243864932651608547548031101579125369522449801180176680832871839949766902603409803129900827570886216824503573705610909511994034019630804614616397546233173185123668523788122205977816079499308671859391 
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAuRXdwPAl+Rs4MAJL1aXAgxUU0EVae74iI3m32uu27UYz9xBDmiDWlVwA2XwQkP/6MXBaAihW8ckBwsXSBaty400WifVfcam/HQ4eVHkV17U/48OFybGL5OjM03BBjvuBpidV1okLXSA4WOiEJiAGt8LQrh5925Y5unRN5HjX/RUBXLwzCg6LEStyQDjIbVf78LBdgpljwkgsef4fjYoDoLRxOeGjzT4P7eMYolNpKyQgLM+lMtBsmjAjA3hx+vLryjOjQ7qFmtAbbJBsvhUOj79xrOefcdzUGt8ctnE8C+Cf6eXStcifWRjEm1GcQjaVOcd5wJHnqP1o/+/+qqj/cw== 
-----END SSH HOST KEY KEYS-----
Cloud-init v. 0.7.5 finished at Fri, 13 Nov 2015 22:07:34 +0000. Datasource DataSourceConfigDriveNet [net,ver=2][source=/dev/sr0].  Up 29.63 seconds
Starting postfix: [  OK  ]
Starting crond: [  OK  ]

CentOS release 6.6 (Final)
Kernel 2.6.32-504.el6.x86_64 on an x86_64

Best Answer

Related Solutions

Linux – How to configure ssh access for an unattended linux-distro ISO image for local development env similar to accessing cloud service VM instances

(centOS) cloud-init not pulling ssh

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