Date: Thu, 03 Jan 2013 16:58:13 +0100 From: Stefan Esser <se@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: installworld failure due to cross-device links Message-ID: <50E5AA95.5080603@freebsd.org> In-Reply-To: <50E4357B.7020400@freebsd.org> References: <50E42264.4010609@freebsd.org> <50E4357B.7020400@freebsd.org>
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Am 02.01.2013 14:26, schrieb Nathan Whitehorn: > On 01/02/13 07:04, Stefan Esser wrote: >> I'd be interested in the general policy on LINKS vs. SYMLINKS >> between directories that might end up on different file systems. >> >> There seems to be an assumption that system directories in /usr >> (e.g. /usr/bin, /usr/sbin, /usr/libexec) are on the same file >> system, but I do not think that this assumption is documented. >> >> I'm using a ZFS only installation of -CURRENT and have separate file >> systems for several of the directories in / and /usr, that usually >> share a file system (e.g. /bin, /sbin, but also /usr/bin/, /usr/sbin >> and /usr/libexec are independent file systems). >> >> An older case is the link from /usr/bin/chgrp to /usr/sbin/chown >> (see usr.sbin/chown/Makefile), which is easily fixed by using a >> SMYLINK instead of a LINK. >> >> And now there is usr.sbin/bsdinstall/partedit/Makefile, which as of >> r244859 creates a link from /usr/libexec/bsdinstall to /usr/sbin/sade. >> >> This breaks with /usr/bin and /usr/sbin on different file systems, >> while it should not according to the commit message: >> > > Thanks for the patch! I've committed it (slightly modified) as r244958. > I haven't taken any action on the chgrp/chown issue, though. Thanks for the fix. Seems I had a wrong idea of the semantics of the (SYM)LINKS macro, as I had assumed that the build target would be linked to the list of names (instead of pairs of source/dest). I did not expect you to do anything with chown/chgrp, but I still think there should be a policy on whether hard links may be used to connect files in different directories (which might be in different file systems). Regards, STefanhome | help
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