Due to the following commits: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=af71222e3bf1bf623dcf128b1b0f6a7beb8d8741 https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2fc120ddfc3a495f4c53d2d7354ecb1adfbe79d5 sys-block/scsirastools should be updated to depend on: || ( >=sys-apps/sg3_utils-1.44 sys-apps/rescan-scsi-bus ) Or only >=sys-apps/sg3_utils-1.44 since sys-block/scsirastools has only unstable keywords... So either: RDEPEND="|| ( >=sys-apps/sg3_utils-1.44 sys-apps/rescan-scsi-bus ) sys-apps/sg3_utils" Or: RDEPEND=">=sys-apps/sg3_utils-1.44"