Error while downloading source: Failed to convert " 4096": strconv.Atoi: parsing " 4096": invalid syntax #618

louds1lence · 2022-04-14T23:57:44Z

Initial command/output

louds1lence@louds1lence-ubufocalx64:~$ sudo distrobuilder build-lxc ./ubuntu-core.yaml --cleanup=false --debug
INFO[2022-04-14T20:26:31-03:00] Downloading source                           
/tmp/distrobuilder/ubuntu-20-amd64/ubuntu-core-20-amd64.img.xz: 100% (909.63kB/s)
Error: Error while downloading source: Failed to convert " 4096": strconv.Atoi: parsing " 4096": invalid syntax

I tried this on my system, both with snap distrobuilder latest/stable and latest/edge, same output.

While looking at the code, ubuntu-http.go > line 70: strconv.Atoi(lines[len(lines)-2]) attempts to parse a line of out the output of the fdisk command. I ran that command on my system, and the value 4096 is indeed preceded by a space on that line which causes strconv.Atoi to throw a fit.

I pulled the code locally and changed that line to the below, which seemed to work fine to get past the error:
strconv.Atoi(strings.TrimSpace(lines[len(lines)-2]))

I'm just not sure if this is an actual bug or if I'm doing something different/unusual in my ubuntu-core.yaml than I should be.

fdisk -l -o Start /tmp/distrobuilder/ubuntu-20-amd64/ubuntu-core-20-amd64.img

louds1lence@louds1lence-ubufocalx64:~$ fdisk -l -o Start /tmp/distrobuilder/ubuntu-20-amd64/ubuntu-core-20-amd64.img
Disk /tmp/distrobuilder/ubuntu-20-amd64/ubuntu-core-20-amd64.img: 3.63 GiB, 3879731200 bytes, 7577600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: E882DDF2-6618-4EDE-9B27-E5F49BF8E3FC

Start
 2048
 4096

fdisk --version

louds1lence@louds1lence-ubufocalx64:~$ fdisk --version
fdisk from util-linux 2.34

snap list output

louds1lence@louds1lence-ubufocalx64:~$ sudo snap list
Name                 Version                         Rev    Tracking         Publisher     Notes
bare                 1.0                             5      latest/stable    canonical✓    base
chromium             100.0.4896.88                   1961   latest/stable    canonical✓    -
code-insiders        a7a7f209                        980    latest/stable    vscode✓       classic
core                 16-2.54.4                       12834  latest/stable    canonical✓    core
core18               20220309                        2344   latest/stable    canonical✓    base
core20               20220318                        1405   latest/stable    canonical✓    base
distrobuilder        git-4faf4a9                     1310   latest/edge      stgraber      classic
dotnet-runtime-60    6.0.4                           19     latest/stable    dotnetcore✓   -
dotnet-sdk           6.0.202                         162    latest/stable    dotnetcore✓   classic
firefox              99.0.1-1                        1232   latest/stable    mozilla✓      -
gnome-3-28-1804      3.28.0-19-g98f9e67.98f9e67      161    latest/stable    canonical✓    -
gnome-3-38-2004      0+git.1f9014a                   99     latest/stable/…  canonical✓    -
go                   1.18                            9415   latest/stable    mwhudson      classic
gtk-common-themes    0.1-59-g7bca6ae                 1519   latest/stable/…  canonical✓    -
lxd                  5.0.0-e478009                   22894  latest/stable    canonical✓    -
make-system-user     12                              26     latest/stable    knitzsche     classic
nmap                 7.92                            2608   latest/stable    maxiberta     -
review-tools         0.48+20220307-1852UTC-1-gac71c  2614   latest/stable    canonical✓    -
simplenote           2.10.0                          544    latest/stable    snapcrafters  -
snap-store           3.38.0-66-gbd5b8f7              558    latest/stable    canonical✓    -
snapcraft            6.1                             7201   latest/stable    canonical✓    classic
snapd                2.54.4                          15177  latest/stable    canonical✓    snapd
test-snapd-swtpm     0.1.0                           1      latest/edge      anonymouse67  -
ubuntu-cloud-image   2021.03.30+git13f7fe7           156    latest/stable    powersj       -
ubuntu-image         2.1+snap7                       286    latest/edge      canonical✓    classic
ubuntu-iso-download  2021.02.13+git3d93a1a           180    latest/stable    powersj       -

ubuntu-core.yaml

image:
  distribution: "ubuntu"
  variant: core
  release: 20

source:
  downloader: ubuntu-http
  variant: core
  release: 20
  url: https://cdimage.ubuntu.com/ubuntu-core
  keys:
  # 0xC5986B4F1257FFA86632CBA746181433FBB75451
  - |-
    -----BEGIN PGP PUBLIC KEY BLOCK-----

    mQGiBEHUUngRBAChnb3mDLFxN/2A/2m2VdF4VduvwWqdzD2AXanEBud8G5HiPYxr
    ....
    z0T+u6krWvb0KxUhptxT7+mH7g/IEZsG+QF1l4U5wFobdSWvits6xJuxMnASkmnp
    a2HMTeZY
    =G0sa
    -----END PGP PUBLIC KEY BLOCK-----

  # 0x843938DF228D22F7B3742BC0D94AA3F0EFE21092
  - |-
    -----BEGIN PGP PUBLIC KEY BLOCK-----

    mQINBE+tjmgBEAC7pKK78t89DW7mvMoSgiScLfPNF8/TSF380is0hFRL3dOmcXEf
    ....
    YZcq1JxgHZbf3g+w/AnzSKZm9aDIgTr7yJBV1gqyQCS1ZV69X0sxf3RKNE1NWosH
    psO47413KSa8kPohVNT+PetcYchUU9HOHHueTbYb37tnrT4=
    =dfp9
    -----END PGP PUBLIC KEY BLOCK-----

targets:
  lxc:
    create_message: |-
      You just created an {{ image.description }} container.

      To enable SSH, run: apt install openssh-server
      No default root or user password are set by LXC.
    config:
    - type: all
      before: 5
      content: |-
        lxc.include = LXC_TEMPLATE_CONFIG/ubuntu.common.conf

    - type: user
      before: 5
      content: |-
        lxc.include = LXC_TEMPLATE_CONFIG/ubuntu.userns.conf

    - type: all
      after: 4
      content: |-
        lxc.include = LXC_TEMPLATE_CONFIG/common.conf

    - type: user
      after: 4
      content: |-
        lxc.include = LXC_TEMPLATE_CONFIG/userns.conf

    - type: all
      content: |-
        lxc.arch = {{ image.architecture_personality }}

packages:
  custom_manager:
    install:
      cmd: true
    remove:
      cmd: true
    update:
      cmd: true
    clean:
      cmd: true
    refresh:
      cmd: true

files:
- name: cloud-init-meta
  path: /lxd/meta-data
  generator: template
  content: |-
    #cloud-config
    instance-id: {{ container.name }}
    local-hostname: {{ container.name }}
    {{ config_get("user.meta-data", "") }}

- name: cloud-init-network
  path: /lxd/network-config
  generator: template
  content: |-
    {% if config_get("user.network-config", "") == "" %}version: 1
    config:
      - type: physical
        name: eth0
        subnets:
          - type: {% if config_get("user.network_mode", "") == "link-local" %}manual{% else %}dhcp{% endif %}
            control: auto{% else %}{{ config_get("user.network-config", "") }}{% endif %}

- name: cloud-init-user
  path: /lxd/user-data
  generator: template
  template:
    properties:
      default: |
        #cloud-config
        {}
  content: |-
    {{ config_get("user.user-data", properties.default) }}

- name: cloud-init-vendor
  path: /lxd/vendor-data
  generator: template
  template:
    properties:
      default: |
        #cloud-config
        {}
  content: |-
    {{ config_get("user.vendor-data", properties.default) }}

- name: hostname
  path: /lxd/hostname
  generator: template
  content: |-
    {{ container.name }}

mappings:
  architecture_map: debian

System Info

============== start: go version       ==============
go version go1.18 linux/amd64
============== /end: go version        ==============

============== start: uname -a         ==============
Linux louds1lence-ubufocalx64 5.13.0-39-generic #44~20.04.1-Ubuntu SMP Thu Mar 24 16:43:35 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
============== /end: uname -a          ==============

============== start: lsb_release -a   ==============
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.4 LTS
Release:	20.04
Codename:	focal
============== /end: lsb_release -a    ==============

============== start: lshw -short      ==============
H/W path        Device      Class      Description
                            system     VirtualBox
/0                          bus        VirtualBox
/0/0                        memory     128KiB BIOS
/0/1                        memory     8GiB System memory
/0/2                        processor  11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
/0/100                      bridge     440FX - 82441FX PMC [Natoma]
/0/100/1                    bridge     82371SB PIIX3 ISA [Natoma/Triton II]
/0/100/1.1                  storage    82371AB/EB/MB PIIX4 IDE
/0/100/2                    display    SVGA II Adapter
/0/100/3        enp0s3      network    82540EM Gigabit Ethernet Controller
/0/100/4                    generic    VirtualBox Guest Service
/0/100/6                    bus        KeyLargo/Intrepid USB
/0/100/6/1      usb2        bus        OHCI PCI host controller
/0/100/6/1/1                input      USB Tablet
/0/100/7                    bridge     82371AB/EB/MB PIIX4 ACPI
/0/100/8        enp0s8      network    82540EM Gigabit Ethernet Controller
/0/100/b                    bus        82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller
/0/100/b/1      usb1        bus        EHCI Host Controller
/0/100/b/1/1                storage    USB CD-ROM
/0/100/d                    storage    82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode]
/0/3                        input      PnP device PNP0303
/0/4                        input      PnP device PNP0f03
/0/5            scsi2       storage    
/0/5/0.0.0      /dev/sda    disk       42GB VBOX HARDDISK
/0/5/0.0.0/1    /dev/sda1   volume     512MiB Windows FAT volume
/0/5/0.0.0/2    /dev/sda2   volume     39GiB Extended partition
/0/5/0.0.0/2/5  /dev/sda5   volume     39GiB EXT4 volume
/0/6            scsi3       storage    
/0/6/0.0.0      /dev/cdrom  disk       CD-ROM
/0/7            scsi4       storage    
/0/7/0.0.0      /dev/sr1    disk       CD-ROM
/1              virbr0-nic  network    Ethernet interface
============== /end: lshw -short       ==============

The text was updated successfully, but these errors were encountered:

stgraber · 2022-04-15T00:54:34Z

Hmm, I think we should actually remove the ubuntu-core plugin. We gave up on those images quite a while ago as the proper operation of Ubuntu Core inside of a container is very very tricky.

louds1lence · 2022-04-15T01:07:23Z

Got it, thank you for letting me know :)

See lxc#618. Signed-off-by: Thomas Hipp <thomas.hipp@canonical.com>

louds1lence closed this as completed Apr 15, 2022

monstermunchkin added a commit to monstermunchkin/distrobuilder that referenced this issue Apr 19, 2022

sources/ubuntu: Drop Ubuntu Core

27fed2e

See lxc#618. Signed-off-by: Thomas Hipp <thomas.hipp@canonical.com>

monstermunchkin mentioned this issue Apr 19, 2022

sources/ubuntu: Drop Ubuntu Core #623

Merged

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Error while downloading source: Failed to convert " 4096": strconv.Atoi: parsing " 4096": invalid syntax #618

Error while downloading source: Failed to convert " 4096": strconv.Atoi: parsing " 4096": invalid syntax #618

louds1lence commented Apr 14, 2022

stgraber commented Apr 15, 2022

louds1lence commented Apr 15, 2022

Error while downloading source: Failed to convert " 4096": strconv.Atoi: parsing " 4096": invalid syntax #618

Error while downloading source: Failed to convert " 4096": strconv.Atoi: parsing " 4096": invalid syntax #618

Comments

louds1lence commented Apr 14, 2022

Initial command/output

fdisk -l -o Start /tmp/distrobuilder/ubuntu-20-amd64/ubuntu-core-20-amd64.img

fdisk --version

snap list output

ubuntu-core.yaml

System Info

stgraber commented Apr 15, 2022

louds1lence commented Apr 15, 2022