Man pages matching name blockdev in section 8:

blockdev.8.de	debian 10 / manpages-de
blockdev.8.ja	debian 10 / manpages-ja
blockdev.8.zh_CN	debian 10 / manpages-zh
blockdev.8.zh_TW	debian 10 / manpages-zh
blockdev.8.en	debian 10 / util-linux
blockdev.8.de	debian 11 / manpages-de
blockdev.8.fr	debian 11 / manpages-fr
blockdev.8.ja	debian 11 / manpages-ja
blockdev.8.zh_CN	debian 11 / manpages-zh
blockdev.8.zh_TW	debian 11 / manpages-zh
blockdev.8.en	debian 11 / util-linux
blockdev.8.de	debian 12 / manpages-de
blockdev.8.fr	debian 12 / manpages-fr
blockdev.8.ja	debian 12 / manpages-ja
blockdev.8.uk	debian 12 / manpages-uk
blockdev.8.zh_CN	debian 12 / manpages-zh
blockdev.8.zh_TW	debian 12 / manpages-zh
blockdev.8.en	debian 12 / util-linux