Date: Tue, 16 Dec 2008 16:06:45 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Bernard Dugas <bernard@dugas-family.org> Cc: freebsd-questions@freebsd.org Subject: Re: Optimising pxeboot disk size Message-ID: <20081216160327.N61449@wojtek.tensor.gdynia.pl> In-Reply-To: <4947B50B.7010802@dugas-family.org> References: <20081216094719.EDCEE1065675@hub.freebsd.org> <49478749.2030200@dugas-family.org> <20081216123057.M61117@wojtek.tensor.gdynia.pl> <4947B50B.7010802@dugas-family.org>
next in thread | previous in thread | raw e-mail | index | archive | help
>> it's simple: > > More simple when you tell it ;-) Thanks a lot, i will try it tonight ! it doesn't have chance - must work :) > >> I wish it's helpful, doing this doesn't just save space but saves time - >> you have to upgrade software once. > > So preserving consistency, which is the most important when you have lot of > diskless stations ! exactly. i'm using just NetBSD 1.5 (uses LITTLE memory) + Xserver, so there are almost no updates, but anyway - it's stored once. >> you may like to make /etc-common directory and put most of files there, and >> symlinks in each station's /etc > > In fact, it makes me think that we miss a concept in mount, or at least i > don't know it currently : > imagine a -tl (TransparentLayer) option for mount, allowing to mount multiple > source to the same directory, for instance /etc : there is already such think - mount_unionfs but i don't use it. if you mount over some directory - it's original contents (like my /etc/rc doing exec /systemrc) gets hidden. > > mount -r yournfsserver:/basic/etc /etc > mount -tl -r yournfsserver:/TypeX/etc /etc > mount -tl -r yournfsserver:/StationY/etc /etc mount_unionfs but i don't know how stable it is. > When you want to change something, you add a rw TransparentLayer : > mount -tl yournfsserver:/StationYchanges/etc /etc > > So that changed or added files are only stored in this rw partition, thus > very small and easy to manage. > > This would be a kind of partition inheritance, like in object languages... > Dreams are allowed :-) try mount_unionfs
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20081216160327.N61449>