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.

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).

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.

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).

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.

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory  -  
[ ]SHA256SUMS2025-05-09 10:15 779  
[ ]SHA256SUMS.gpg2025-05-09 10:15 833  
[ ]plucky-live-server-amd64.iso2025-04-16 00:38 1.9G 
[ ]plucky-live-server-amd64.iso.zsync2025-04-16 00:47 3.8M 
[ ]plucky-live-server-amd64.list2025-04-16 00:38 12K 
[TXT]plucky-live-server-amd64.manifest2025-04-15 19:32 19K 
[ ]plucky-live-server-arm64+largemem.iso2025-04-15 08:54 1.9G 
[ ]plucky-live-server-arm64+largemem.iso.zsync2025-04-15 08:57 3.8M 
[ ]plucky-live-server-arm64+largemem.list2025-04-15 08:54 12K 
[TXT]plucky-live-server-arm64+largemem.manifest2025-04-15 03:39 19K 
[ ]plucky-live-server-arm64.iso2025-04-15 08:48 1.9G 
[ ]plucky-live-server-arm64.iso.zsync2025-04-15 08:55 3.8M 
[ ]plucky-live-server-arm64.list2025-04-15 08:48 12K 
[TXT]plucky-live-server-arm64.manifest2025-04-15 03:44 19K 
[ ]plucky-live-server-ppc64el.iso2025-04-15 08:49 1.4G 
[ ]plucky-live-server-ppc64el.iso.zsync2025-04-15 08:56 2.8M 
[ ]plucky-live-server-ppc64el.list2025-04-15 08:49 4.5K 
[TXT]plucky-live-server-ppc64el.manifest2025-04-15 03:47 19K 
[ ]plucky-live-server-riscv64.iso2025-04-16 00:46 1.4G 
[ ]plucky-live-server-riscv64.iso.zsync2025-04-16 00:50 2.8M 
[ ]plucky-live-server-riscv64.list2025-04-16 00:46 6.5K 
[TXT]plucky-live-server-riscv64.manifest2025-04-16 00:29 19K 
[ ]plucky-live-server-s390x.iso2025-04-15 08:45 706M 
[ ]plucky-live-server-s390x.iso.zsync2025-04-15 08:54 1.4M 
[ ]plucky-live-server-s390x.list2025-04-15 08:45 4.3K 
[TXT]plucky-live-server-s390x.manifest2025-04-15 03:21 18K 
[ ]plucky-netboot-amd64.tar.gz2025-04-16 00:47 92M 
[ ]plucky-netboot-arm64+largemem.tar.gz2025-04-16 00:48 98M 
[ ]plucky-netboot-arm64.tar.gz2025-04-16 00:47 98M 
[ ]plucky-netboot-ppc64el.tar.gz2025-04-16 00:49 82M 
[ ]plucky-netboot-riscv64.tar.gz2025-04-16 00:50 78M 
[ ]plucky-netboot-s390x.tar.gz2025-04-16 00:50 40M 
[ ]questing-live-server-amd64.iso2025-05-06 19:39 1.9GServer install image for 64-bit PC (AMD64) computers (standard download)
[ ]questing-live-server-amd64.iso.zsync2025-05-06 19:46 3.8MServer install image for 64-bit PC (AMD64) computers (zsync metafile)
[ ]questing-live-server-amd64.list2025-05-06 19:39 12KServer install image for 64-bit PC (AMD64) computers (file listing)
[TXT]questing-live-server-amd64.manifest2025-05-06 09:48 19KServer install image for 64-bit PC (AMD64) computers (contents of live filesystem)
[ ]questing-live-server-riscv64.iso2025-05-09 10:13 1.4GServer install image for RISC-V computers (standard download)
[ ]questing-live-server-riscv64.iso.zsync2025-05-09 10:14 2.8MServer install image for RISC-V computers (zsync metafile)
[ ]questing-live-server-riscv64.list2025-05-09 10:13 6.5KServer install image for RISC-V computers (file listing)
[TXT]questing-live-server-riscv64.manifest2025-05-09 10:08 19KServer install image for RISC-V computers (contents of live filesystem)
[ ]questing-netboot-amd64.tar.gz2025-05-06 19:45 91MNetboot tarball for 64-bit PC (AMD64) computers (filesystem archive)
[ ]questing-netboot-riscv64.tar.gz2025-05-09 10:14 78MNetboot tarball for RISC-V computers (filesystem archive)