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I need to install libhdf5 on an offline computer which has Ubuntu 18.04.1 LTS installed.

One of the packages it looks for when running sudo apt-get install libhdf5-serial-dev hdf5-tools

is libjpeg-turbo8-dev_1.5.2-0ubuntu5.18.04.1_arm64.deb which "should" be located in http://ports.ubuntu.com/ubuntu-ports/pool/main/libj/libjpeg-turbo/

but I can only find there, the newer, libjpeg-turbo8-dev_1.5.2-0ubuntu5.18.04.3_arm64.deb where can I find the older deb file?

Assume that I can't run sudo apt-get update since the computer can't be connected to the web

Benny K
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    Welcome to [ubuntu.se]! Have you tried installing the newer version? Have you got any problems with it? New versions in stable releases like 18.04 should provide mostly bugfixes and should never break compatibility, so you can most likely work with the newer version. To upgrade an offline computer, see How can I install software or packages without Internet (offline)? – Melebius Feb 11 '20 at 08:20
  • No, I have not. I am trying to go "by the book" and look for the exact file. is there a repository for older versions? – Benny K Feb 11 '20 at 08:37
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    No guaranty that old packages are saved. Please run : Google, libjpeg-turbo8-dev_1.5.2-0ubuntu5.18.04.1_arm64.deb https://www.google.com/webhp?hl=all&gws_rd=ssl#hl=en&q=libjpeg-turbo8-dev_1.5.2-0ubuntu5.18.04.1_arm64.deb ... to look for "saved". ... Example hit http://turul.canonical.com/pool/main/libj/libjpeg-turbo/ – Knud Larsen Feb 11 '20 at 09:37
  • https://packages.ubuntu.com/xenial/allpackages Search for: libjpeg-turbo8-dev Is listed at the bottom is the version 1.4.2 – GoldHaloWings Feb 11 '20 at 11:24
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    “I am trying to go "by the book" and look for the exact file.” I don’t find this a good approach. Software evolves much faster than books do. – Melebius Feb 11 '20 at 12:31

1 Answers1

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There is a histroy of all builds, e.g. for virtualbox:

https://launchpad.net/ubuntu/+source/virtualbox/6.1.18-dfsg-5/+build/21372864

so for libjpeg-turbo8-dev_1.5.2-0ubuntu5.18.04.1

it will be something like

https://launchpad.net/ubuntu/+source/libjpeg-turbo8/dev_1.5.2-0ubuntu5.18.04.1/+build/[XXXXX] where you have to find out the XXXXX

rubo77
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