On 13.08.2012 14:10, Miquel van Smoorenburg wrote: > Package: mdadm > Version: 3.2.5-1 > Severity: serious > Tags: patch wheezy sid > > The initramfs hook supplied by mdadm doesn't install mdmon. Also, mdmon > is not included in the .udeb for the installer. > > This means that if you have an array with external metadata (ddf or, > more widely used, imsm - Intel Matrix Raid) that it will come up > readonly. This causes the installer to hang or the system not being > able to boot if root is on that array. > > The attached patch does a couple of things: > > - it makes sure mdadm is included in the initramfs and the udeb package > - it adds a mdadm-waitidle script that runs just before reboot/halt. For all > arrays that are still running, it sets safe_mode_delay to a low version, > sets sync_action to idle, and waits for the array(s) to go idle. > This is needed so that the array is clean, otherwise it will start > to resync at the next boot. > - it adds 2 lines of code to mdmon.c so that it symlinks its pidfile > into /run/sendsigs.omit.d - mdmon should not be killed at shutdown, > we still need it after the rootfs has been unmounted.
There's one more thing missing in there: mdmon should be re-started from real root after switching from rootfs -- the takeover. I guess it needs to be added to mdadm-raid. BTW, why mdadm-waitidle is a separate script? Can't we fold it into mdadm-raid directly? The more I think about this all, the more it looks like it is too heavily change for wheezy. I understand the situation, but I still think it is not a good idea in general. Oh well. Thanks, /mjt -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
