Date: Tue, 28 Jul 2009 15:29:38 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: freebsd-rc@FreeBSD.org Subject: Review request. Message-ID: <20090728132938.GG1690@garage.freebsd.pl>
next in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] Hi. I'm looking for a review of the following: Currently there is a problem with fscking UFS file systems created on top of ZVOLs. The problem is that rc.d/fsck runs before rc.d/zfs. The latter makes ZVOLs to appear in /dev/. In such case rc.d/fsck cannot find devfs entry and aborts. We cannot simply move rc.d/zfs before rc.d/fsck, because we first want kern.hostid to be configured (by rc.d/hostid). If we won't wait (hostid will be 0) we can reuse disks which are in use by different systems (eg. in SAN/NAS environment). We also cannot move rc.d/hostid before rc.d/fsck, because rc.d/hostid on first system start stores generated kern.hostuuid in /etc/hostid file, so it needs root file system to be mounted read-write. My fix is to split rc.d/hostid so that rc.d/hostid (which will now run before rc.d/fsck) only generates hostid and sets up sysctls, but doesn't touch root file system and rc.d/hostid_save (which is run after rc.d/root) and only creates /etc/hostid file. With that in place, I can move ZVOL initialization to dedicated rc.d/zvol script which runs before rc.d/fsck. The patch is here: http://people.freebsd.org/~pjd/patches/zvol_fsck.patch -- Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFKbv1CForvXbEpPzQRAryyAKDcRduXC+oXt0wIrYnlIOQyMZdMnQCgszeH Qe+W1c2Kf9JTIS5A0UX7hgg= =1xuL -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090728132938.GG1690>