On Mon, Mar 12, 2012 at 11:39 PM, Pandu Poluan <pa...@poluan.info> wrote: > On Tue, Mar 13, 2012 at 12:11, Canek Peláez Valdés <can...@gmail.com> wrote: >> On Mon, Mar 12, 2012 at 11:04 PM, Pandu Poluan <pa...@poluan.info> wrote: >>> I am seriously thinking of splitting the storage of directories under /usr, >>> e.g., /usr/portage and /usr/source actually living somewhere else, on >>> different partition and different filesystem. Let's say something mounted on >>> /mnt/Persistent. >>> >>> My question: should I use bindmount or symlinks to do that? What's the >>> drawbacks/benefits for either? >> >> I'm sorry, I don't understand. What's the problem of having the >> following in /etc/fstab? >> >> LABEL=Portage /usr/portage ext4 noatime,auto >> 0 2 >> LABEL=Source /usr/source ext4 noatime,auto >> 0 2 >> >> (Replace LABEL=Portage with /dev/sda7, if you want to.) >> >> Why do you need to bindmount or link the directories when you can >> mount them wherever you want? >> > > Because I am avoiding "single partition per directory". And a slight > mistake in my original email, it's not just /usr but also /var (and > other root-based directories that will not interfere with boot-up / > operations) > > Let me give an example: > > Let's say I have /dev/sdc and /dev/sdd, both having single partition > each (/dev/sdc1 and /dev/sdd1). > > /dev/sdc1 will be formatted reiserfs mounted into /mnt/Persistent1 > > /dev/sdd1 will be formatted ext4 mounted into /mnt/Persistent2 > > Directories not really necessary for daily operations, such as > /usr/src, /usr/portage, /var/db/pkg, and so on and so forth, will each > be a subdir under either /mnt/Persistent1 or /mnt/Persistent2 > according to each directory's nature. > > Let's take the example of /usr/src ... I can either make /usr/src a > symlink to /mnt/Persistent1/src, or bindmount /mnt/Persistent1/src to > /usr/src
All of that sounds incredible complicated. Interesting choice of partition handling. > What will be the benefits/drawbacks for bindmount vs symlink? In my experience, and if you are not dealing with NFS, no respectable program cares about a dir being a symlink, so I would use symlinks (they are easier to handle). Regards. -- Canek Peláez Valdés Posgrado en Ciencia e Ingeniería de la Computación Universidad Nacional Autónoma de México
