Ubuntu Linux Templates

Ubuntu 14.04 LTS, Trusty Tahr x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 14.04 x64

Ubuntu

14.04.6 LTS

x64

xen, kvm, kvm_virtio

1.0 - 1.10




Ubuntu 16.04 LTS (Xenial Xerus) x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 16.04 x64

Ubuntu

16.04.7 LTS

x64

xen, kvm, kvm_virtio

1.0 - 1.13






Ubuntu 16.04 LTS (Xenial Xerus) x86


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 16.04 LTS x86

Ubuntu

16.04.7 LTS

x86

xen, kvm, kvm_virtio

1.0-1.7


Ubuntu Linux 18.04 LTS (Bionic Beaver) x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 18.04 x64

Ubuntu

18.04.6 LTS

x64

xen, kvm, kvm_virtio

1.0-1.11




Ubuntu Linux 19.10 x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 19.10 x64

Ubuntu

19.10

x64

kvm, kvm_virtio

1.0

  • Limitation: The template isn't compatible with Xen.
    Ubuntu uses the LZ4 compressing for its kernels starting with the version 19.10 (kernel 5.3.0). The LZ4 decompressing isn't supported by Xen's pygrub on versions 4.8 and 4.10 (used by OnApp).

    Technical details:
# lsb_release -r
Release: 19.10

# grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_KERNEL_LZ4=y

The relevant bug report at https://bugs.launchpad.net/ubuntu/+source/xen/+bug/1854575


Ubuntu Linux 20.04 LTS (Focal Fossa)


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 20.04 x64 

Ubuntu

20.04.5 LTS

x64

kvm, kvm_virtio

1.0-1.6

  • Limitation: The template isn't compatible with Xen.
    Ubuntu uses the LZ4 compressing for its kernels starting with the version 19.10 (kernel 5.3.0). The LZ4 decompressing isn't supported by Xen's pygrub on versions 4.8 and 4.10 (used by OnApp).

    Technical details:
# lsb_release -r
Release: 20.04

$ grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set CONFIG_KERNEL_LZ4=y


Ubuntu 20.10 x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 20.10 x64

Ubuntu

20.10

x64

kvm, kvm_virtio

1.0 - 1.3

  • Limitation: The template isn't compatible with Xen. Ubuntu has been using LZ4  compressing for its kernels version > 5.3. The ZSTD decompressing isn't supported by Xen's pygrub in versions 4.8 and 4.10 (used by OnApp).

    Technical details:
$ grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_KERNEL_LZ4=y

The corresponding discussion can be found at https://ubuntuforums.org/showthread.php?t=2431459

Ubuntu 21.04 x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 21.04 x64

Ubuntu

21.04

x64

kvm, kvm_virtio

1.0-1.4

  • Limitation:
    The template isn't compatible with Xen.
    Ubuntu uses the LZ4 compressing for its kernels starting with the version 19.10 (kernel 5.3.0). The LZ4 decompressing isn't supported by Xen's pygrub on versions 4.8 and 4.10 (used by OnApp).

    Technical details:
$ lsb_release -r
Release:	21.04

$ grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_KERNEL_LZ4=y
# CONFIG_KERNEL_ZSTD is not set

Refer to the relevant bug report at https://bugs.launchpad.net/ubuntu/+source/xen/+bug/1854575


Ubuntu 21.10 x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 21.10 x64

Ubuntu

21.10

x64

kvm, kvm_virtio

1.0-1.7

  • Limitation: The template isn't compatible with Xen.
    Ubuntu uses the LZ4 compressing for its kernels starting with the version 19.10 (kernel 5.3.0). The LZ4 decompressing isn't supported by Xen's pygrub on versions 4.8 and 4.10 (used by OnApp).

    Technical details:
# lsb_release -r
Release:	21.10

$ grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_KERNEL_LZ4=y

Refer to the relevant bug report at https://bugs.launchpad.net/ubuntu/+source/xen/+bug/1854575


Ubuntu 22.04 LTS (Jammy Jellyfish) x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 22.04 x64

Ubuntu

22.04.2 LTS

x64

kvm, kvm_virtio

1.0-1.9

  • Limitation: The template isn't compatible with Xen.
    Ubuntu uses the ZSTD compressing for its kernels starting with the version 22.04 (kernel 5.15.0). The ZSTD decompressing isn't supported by Xen's pygrub on versions 4.8 and 4.10 (used by OnApp).

    Technical details:  
# lsb_release -r
Release:	22.04

$ # grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_KERNEL_ZSTD=y

Refer to the relevant bug report at https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1931725


Ubuntu 22.10 (Kinetic Kudu) x64


Template label

Operating system

OS release

OS arch

Virtualization

Version

Ubuntu 22.10 x64

Ubuntu

22.10

x64

kvm, kvm_virtio

1.0 - 1.4

  • Limitation: The template isn't compatible with Xen. Ubuntu has been using ZSTD compressing for its kernels 5.9-5.19, 6.0. The ZSTD decompressing isn't supported by Xen's pygrub in versions 4.8 and 4.10 (used by OnApp).

    Technical details:
$ grep CONFIG_KERNEL_ /boot/config-`uname -r`
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_KERNEL_ZSTD=y

The corresponding discussion can be found at https://lists.ubuntu.com/archives/ubuntu-devel-discuss/2022-January/019165.html