Package: libblkmaker Version: 0.5.3-1 Severity: grave Tags: fixed-upstream Hi,
The version of libblkmaker in sid/stretch supports bitcoin blocks up to version 4 only: http://sources.debian.net/src/libblkmaker/0.5.3-1/blkmaker.h/#L15 But since early 2016, the tip of the blockchain uses predemonantly versions 0x20000000 or later: https://data.bitcoinity.org/bitcoin/block_version/5y?c=block_version&t=a That seems to make bfgminer unusable; it looks at the tip of the bitcoin blockchain and throws the error, failing to start: "Unrecognized block version, and not allowed to reduce or force it" The current Git master of libblkmaker added support for this: https://github.com/bitcoin/libblkmaker/commit/ae7055df8bbb72dd42dcb6a8d1440ca87da6b0f3 https://github.com/bitcoin/libblkmaker/commit/0d8212c1dcf9dab28d749c08bd107ce0f06d45e3 but I found that bfgminer would still not work unless it also sets BMM_VERFORCE in tmpl->mutations I'm not entirely familiar with any of the above-mentioned software but hopefully the upstream author luke-kr (in Cc:) could comment on these issues. Many thanks! -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: kfreebsd-amd64 (x86_64) Kernel: kFreeBSD 10.1-0-amd64 Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init)