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/                                      2025-06-01 13:28    -   
[TXT] FOOTER.html                                   2025-06-01 13:29  810   
[   ] questing-live-server-amd64.iso                2025-06-01 13:17  1.9G  
[   ] questing-live-server-amd64.iso.zsync          2025-06-01 13:26  3.8M  
[   ] questing-live-server-amd64.list               2025-06-01 13:17   12K  
[TXT] questing-live-server-amd64.manifest           2025-06-01 08:27   19K  
[   ] questing-live-server-arm64+largemem.iso       2025-06-01 13:22  1.9G  
[   ] questing-live-server-arm64+largemem.iso.zsync 2025-06-01 13:27  3.9M  
[   ] questing-live-server-arm64+largemem.list      2025-06-01 13:22   12K  
[TXT] questing-live-server-arm64+largemem.manifest  2025-06-01 08:38   19K  
[   ] questing-live-server-arm64.iso                2025-06-01 13:19  1.9G  
[   ] questing-live-server-arm64.iso.zsync          2025-06-01 13:27  3.8M  
[   ] questing-live-server-arm64.list               2025-06-01 13:19   12K  
[TXT] questing-live-server-arm64.manifest           2025-06-01 08:35   19K  
[   ] questing-live-server-ppc64el.iso              2025-06-01 13:23  1.4G  
[   ] questing-live-server-ppc64el.iso.zsync        2025-06-01 13:28  2.8M  
[   ] questing-live-server-ppc64el.list             2025-06-01 13:23  4.5K  
[TXT] questing-live-server-ppc64el.manifest         2025-06-01 08:37   19K  
[   ] questing-live-server-riscv64.iso              2025-06-01 13:25  1.4G  
[   ] questing-live-server-riscv64.iso.zsync        2025-06-01 13:29  2.8M  
[   ] questing-live-server-riscv64.list             2025-06-01 13:25  6.5K  
[TXT] questing-live-server-riscv64.manifest         2025-06-01 13:08   19K  
[   ] questing-live-server-s390x.iso                2025-06-01 13:23  711M  
[   ] questing-live-server-s390x.iso.zsync          2025-06-01 13:28  1.4M  
[   ] questing-live-server-s390x.list               2025-06-01 13:23  4.3K  
[TXT] questing-live-server-s390x.manifest           2025-06-01 08:18   18K  
[   ] questing-netboot-amd64.tar.gz                 2025-06-05 14:50   95M  
[   ] questing-netboot-arm64+largemem.tar.gz        2025-06-05 14:52   98M  
[   ] questing-netboot-arm64.tar.gz                 2025-06-05 14:51   98M  
[   ] questing-netboot-ppc64el.tar.gz               2025-06-05 14:53   82M  
[   ] questing-netboot-riscv64.tar.gz               2025-06-05 14:54   78M  
[   ] questing-netboot-s390x.tar.gz                 2025-06-05 14:54   40M  
[   ] SHA256SUMS                                    2025-06-01 13:29  595   
[   ] SHA256SUMS.gpg                                2025-06-01 13:29  833