Hi Guix! We’ve always had difficulties with mips64el-linux builds. At our best we had two slow MIPS build machines behind hydra.gnu.org. One of them died months ago, and the second one¹ (hosted at the FSF) went off-line around early February. Mark has been kindly taking care of these machines but hasn’t yet figured out what to do with this one. As a consequence, ‘core-updates’ has not been fully built for misp64el-linux. Mark tested it on a Yeeloong and noticed that the generated code, since the upgrade of Binutils to 2.27, tends to lock up the machine; reverting to 2.25 fixes the problem. Thus, the next Guix release will probably not have a binary tarball for MIPS. We hope to resume proper support in the future if everything goes well. Apologies to Guix users on MIPS. If you have an interest in this architecture and better yet, if you have a build machine that you could provide us with, please let us know! Thanks, Ludo’. ¹ See the list of machines at .