Ubuntu Server 25.10 (Questing Quokka) Daily Build

Ubuntu Server 25.10 (Questing Quokka) Daily Build

Select an image

Ubuntu-Server is distributed on three types of images described below.

Server install image

The server install image allows you to install Ubuntu-Server permanently on a computer for use as a server. It will not install a graphical user interface.

64-bit PC (AMD64) server install image

Choose this if you have a computer based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). Choose this if you are at all unsure.

64-bit ARM (ARMv8/AArch64) server install image

For 64-bit ARMv8 processors and above.

PowerPC64 Little-Endian server install image

For POWER9 and POWER10 Little-Endian systems.

RISC-V server install image

For RISC-V computers. Requires copying your own first stage bootloader (like u-boot) and relevant DTBs onto the image before usage on real hardware (like the SiFive HiFive Unmatched).

IBM System z server install image

For IBM System z series mainframes, such as IBM LinuxONE.

Netboot tarball

The netboot tarball contains files needed to boot the Ubuntu-Server installer over the network.

64-bit PC (AMD64) netboot tarball

Choose this if you have a computer based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). Choose this if you are at all unsure.

64-bit ARM (ARMv8/AArch64) netboot tarball

For 64-bit ARMv8 processors and above.

PowerPC64 Little-Endian netboot tarball

For POWER9 and POWER10 Little-Endian systems.

RISC-V netboot tarball

For RISC-V computers. Requires copying your own first stage bootloader (like u-boot) and relevant DTBs onto the image before usage on real hardware (like the SiFive HiFive Unmatched).

IBM System z netboot tarball

For IBM System z series mainframes, such as IBM LinuxONE.

For ARM hardware for which we do not ship preinstalled images, see ARM/Server/Install for detailed installation information.

A full list of available files can be found below.

If you need help burning these images to disk, see the Image Burning Guide.

Icon  Name                                          Last modified      Size  
[PARENTDIR] Parent Directory - [DIR] netboot/ 2025-05-17 15:13 - [TXT] FOOTER.html 2025-05-17 15:15 810 [   ] questing-live-server-amd64.iso 2025-05-17 15:05 1.9G [   ] questing-live-server-amd64.iso.zsync 2025-05-17 15:11 3.8M [   ] questing-live-server-amd64.list 2025-05-17 15:05 12K [TXT] questing-live-server-amd64.manifest 2025-05-17 10:16 19K [   ] questing-live-server-arm64+largemem.iso 2025-05-17 15:09 1.9G [   ] questing-live-server-arm64+largemem.iso.zsync 2025-05-17 15:12 3.8M [   ] questing-live-server-arm64+largemem.list 2025-05-17 15:09 12K [TXT] questing-live-server-arm64+largemem.manifest 2025-05-17 10:24 19K [   ] questing-live-server-arm64.iso 2025-05-17 15:07 1.9G [   ] questing-live-server-arm64.iso.zsync 2025-05-17 15:12 3.8M [   ] questing-live-server-arm64.list 2025-05-17 15:07 12K [TXT] questing-live-server-arm64.manifest 2025-05-17 10:23 19K [   ] questing-live-server-ppc64el.iso 2025-05-17 15:09 1.4G [   ] questing-live-server-ppc64el.iso.zsync 2025-05-17 15:13 2.8M [   ] questing-live-server-ppc64el.list 2025-05-17 15:09 4.5K [TXT] questing-live-server-ppc64el.manifest 2025-05-17 10:27 19K [   ] questing-live-server-riscv64.iso 2025-05-17 15:11 1.4G [   ] questing-live-server-riscv64.iso.zsync 2025-05-17 15:14 2.8M [   ] questing-live-server-riscv64.list 2025-05-17 15:11 6.5K [TXT] questing-live-server-riscv64.manifest 2025-05-17 15:00 19K [   ] questing-live-server-s390x.iso 2025-05-17 15:10 709M [   ] questing-live-server-s390x.iso.zsync 2025-05-17 15:13 1.4M [   ] questing-live-server-s390x.list 2025-05-17 15:10 4.3K [TXT] questing-live-server-s390x.manifest 2025-05-17 10:08 18K [   ] questing-netboot-amd64.tar.gz 2025-05-18 13:48 91M [   ] questing-netboot-arm64+largemem.tar.gz 2025-05-18 13:49 98M [   ] questing-netboot-arm64.tar.gz 2025-05-18 13:48 98M [   ] questing-netboot-ppc64el.tar.gz 2025-05-18 13:50 82M [   ] questing-netboot-riscv64.tar.gz 2025-05-18 13:50 78M [   ] questing-netboot-s390x.tar.gz 2025-05-18 13:50 40M [   ] SHA256SUMS 2025-05-17 15:15 595 [   ] SHA256SUMS.gpg 2025-05-17 15:15 833