There is no /dev/disk/* links for mdraid devices. Some programs may need them. Especially mkinitramfs tool (http://tools.assembla.com/mkinitramfs/). They provide some udev rules relying on mdadm >= 2.6.1 at http://tools.assembla.com/mkinitramfs/wiki/MDrules Here is a copy: #> cat /etc/udev/rules.d/64-md-raid.rules # md links hook into "change" events, when the array becomes available SUBSYSTEM!="block", GOTO="md_end" KERNEL!="md[0-9]*", GOTO="md_end" ACTION!="add|change", GOTO="md_end" ATTR{md/array_state}=="|clear|inactive", GOTO="md_end" IMPORT{program}="/sbin/mdadm -D --export $tempnode" ENV{MD_NAME}=="?*", SYMLINK+="disk/by-id/md-name-$env{MD_NAME}" ENV{MD_UUID}=="?*", SYMLINK+="disk/by-id/md-uuid-$env{MD_UUID}" IMPORT{program}="vol_id --export $tempnode" OPTIONS="link_priority=100" ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}" ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}" LABEL="md_end" Reproducible: Always Steps to Reproduce: 1.Install mkinitramfs on mdraid system 2.Try to use /dev/disk/uuid 3.No mdraid devices corresponding entries Actual Results: One needs to add the rules to /etc/udev/rules.d/, even if mdadm >= 2.6.1 is installed. Expected Results: Installing mdadm should install udev rules See http://tools.assembla.com/mkinitramfs/
Please CHECK before filing bugs. # equery f =sys-fs/mdadm-2.6.3-r4 |grep udev /etc/udev /etc/udev/rules.d /etc/udev/rules.d/64-md-raid.rules (and yes, it's identical to the file you pasted in here)
It was not a report concerning unstable (masked) packages. Current unmasked ("stable") is mdadm-2.6.2 and the ebuild doesn't provide such udev rules while this version of mdadm permits it.
Your original filing makes no such note. We know that they aren't in the stable tree yet, they will get there once they have had sufficient time in ~arch (which is probably soon).
Ok, no problem ;) BTW, mdadm 2.6.4 is out.
