Author: sobomax Date: Mon Jul 22 20:04:55 2019 New Revision: 350224 URL: https://svnweb.freebsd.org/changeset/base/350224
Log: Allow "update" option to be used in the fstab(5). Document possible use case. Approved by: mckusick MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D18586 Modified: head/sbin/mount/mount.c head/share/man/man5/fstab.5 Modified: head/sbin/mount/mount.c ============================================================================== --- head/sbin/mount/mount.c Mon Jul 22 19:27:23 2019 (r350223) +++ head/sbin/mount/mount.c Mon Jul 22 20:04:55 2019 (r350224) @@ -361,6 +361,7 @@ main(int argc, char *argv[]) else failok = 0; if (!(init_flags & MNT_UPDATE) && + !hasopt(fs->fs_mntops, "update") && ismounted(fs, mntbuf, mntsize)) continue; options = update_options(options, fs->fs_mntops, Modified: head/share/man/man5/fstab.5 ============================================================================== --- head/share/man/man5/fstab.5 Mon Jul 22 19:27:23 2019 (r350223) +++ head/share/man/man5/fstab.5 Mon Jul 22 20:04:55 2019 (r350224) @@ -190,6 +190,32 @@ see the .Xr mount 8 manual page. .Pp +If the option +.Dq update +is specified, it indicates that the status of an already mounted file +system should be changed accordingly. +This allows, for example, file systems mounted read-only to be upgraded +read-write and vice-versa. +By default, an entry corresponding to a file systems that is already +mounted is going to be skipped over when processing +.Nm , +unless it's a root file system, in which case logic similar to +.Dq update +is applied automatically. +.Pp +The +.Dq update +option is typically used in conjuction with two +.Nm +files. +The first +.Nm +file is used to set up the initial set of file systems. +The second +.Nm +file is then run to update the initial set of file systems and +to add additional file systems. +.Pp The type of the mount is extracted from the .Fa fs_mntops field and stored separately in the _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
