Re: [gentoo-user] How many GB for / partition?

["Hemmann, Volker Armin" <volker.armin.hemmann@tu-clausthal.de>]

On Thursday 16 February 2006 17:18, Alexander Skwar wrote:
> Hemmann, Volker Armin wrote:
> > On Thursday 16 February 2006 15:45, Alexander Skwar wrote:
> >> Hemmann, Volker Armin wrote:
> >> > On Thursday 16 February 2006 14:06, Alexander Skwar wrote:
> >> >> Izar Ilun wrote:
> >> >> > I say that, It'll be just:
> >> >> > - /boot
> >> >> > - swap
> >> >> > - /home
> >> >> > - / (all the rest)
> >> >>
> >> >> That's not advisable. I'd strongly suggest to create
> >> >> filesystems for /boot, swap, /home, /opt, /usr, /var
> >> >> and / (of course). This way you're more flexible
> >> >> and also a bit safer (not such a high risk of running
> >> >> out of space on /).
> >> >
> >> > and he wastes a lot of space,
> >>
> >> No, he doesn't. Where does he waste space?
> >
> > because you shall not fill up any partition more than 85% or
> > fragmentation will go up insanly and performance go down to the bottom.
>
> Yes, but we're no longer in the age, where 10GB hard
> drives are high end. I do agree, that you might waste
> a little bit of space. But that's it. And that's only
> a theoretical value. Nothing to worry about in real
> life.
>
> >> > makes boot a lot longer
> >>
> >> Not really.
> >
> > yes, really.
>
> jaja.


>
> > Why should he make /tmp noexec,
>
> Security precaution.
if you have 10+ users with access to the box. But a workstation, without even 
sshd running, it is not needed.

And hey, why should /tmp noexec save you from anything?
If someone is  able to break into your box, he can build his tools in /home 
or /var/tmp or somewhere else. No need for /tmp.

>
> >> > With that sizes, it is nearly impossible to fill / completly up.
> >>
> >> And it's impossible to have some flexibility.
> >
> > no, it is absolutly flexible
>
> Ah. Please explain how you mount /tmp noexec and /usr
> readonly.

I don't because it is wasted effort.
If someone has the right to write to a rw /usr/ partition, he has the rights 
to remount a ro /usr as rw and can go on.. It just makes maintance harder.

>
> Please also explain, how you seperate data areas (like
> /var and /usr).

I have /var and /usr?
Why shuld I seperate them any further?

>
> >> > To put everything on its own partition was good, when harddisks were
> >> > 2gb-10gb big.
> >>
> >> And it's still good today.
> >
> > no it is not
>
> I see. Strange thing is, that about every server and workstation
> I've seen more or less contradicts what you say.

if you have 20+ users on each of them, and every single one is a little 
cracker in disguisse, it may make sense, but for a single user box?
No.

>
> >> > But today it is just a waste of space and time.
> >>
> >> No, it's absolutely not.
> >
> > yes it is. It wastes space,
>
> Not really. Some. But not really.

15% of the space on each partition. That sums up.

>
> > makes boot much longer.
>
> No, it doesn't. Not noticeably, at least.

oh really? Have a look at the forums 'my *fs takes this and that long to 
mount'

If every partition takes a second, it will be very noticable.

>
> > More partitions = more
> > haead movement = higher risk of damage. More partitions = more risk that
> > one of the partitions dies = more risk of fatal data loss.
>
> There's always backup.
>
> > More partitions = less space available
>
> Not really. Some. But not really.
>
> If you're *SO* low on hard disk space, I'd advice to buy
> more harddisks.

more harddisks = higher chance that one of them dies.

I had 4 simultaniously running harddisk once. I went down to one big one. 
Because every couple of month one disk died.

It is simple math. The more disks, the higher the risk.

>
> Actually, as *you* see, there aren't many reasons and no good
> reasons to do what you say.

I haven't seen any good reason for a bazillion small partitions, that only 
increase your work and have to be monitored constantly (f* /var is full, 
f* /tmp is full f* I have to remount /usr).
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