You'll see the error below. The solution is very simple: download the two files and put them into the config/ directory. I don't know if you want me to prepare a patch for that, but it's probably easier if someone with commit access to the e2fsprogs repo could just do it. (Really you shouldn't have these files in git at all ...) In case you want to try to reproduce the issue yourself we have Fedora/RISC-V disk images available which you can run under emulation on any Linux machine: https://fedorapeople.org/groups/risc-v/disk-images/ Rich. ---------------------------------------------------------------------- $ ./configure Generating configuration file for e2fsprogs version 1.44.0-rc1 Release date is February, 2018 checking build system type... config/config.guess: unable to guess system type This script (version 2016-05-15), has failed to recognize the operating system you are using. If your script is old, overwrite config.guess and config.sub with the latest versions from: http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess and http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub If config/config.guess has already been updated, send the following data and any information you think might be pertinent to config-patches@xxxxxxx to provide the necessary information to handle your system. config.guess timestamp = 2016-05-15 uname -m = riscv64 uname -r = 4.16.0-rc2-00328-gebea62367bc4 uname -s = Linux uname -v = #4 SMP Mon Feb 26 16:05:16 GMT 2018 /usr/bin/uname -p = riscv64 /bin/uname -X = hostinfo = /bin/universe = /usr/bin/arch -k = /bin/arch = riscv64 /usr/bin/oslevel = /usr/convex/getsysinfo = UNAME_MACHINE = riscv64 UNAME_RELEASE = 4.16.0-rc2-00328-gebea62367bc4 UNAME_SYSTEM = Linux UNAME_VERSION = #4 SMP Mon Feb 26 16:05:16 GMT 2018 configure: error: cannot guess build type; you must specify one -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html