Re: [gentoo-user] gentoo on SSD

[Stefano Crocco]

On Saturday, 23 September 2017 21:27:45 CEST Canek Peláez Valdés wrote:
> On Sat, Sep 23, 2017 at 2:04 PM, Stefano Crocco <posta@×××××××××××××.it>
>
> wrote:
> > Hello to everyone,
> > I just bought a 250 GB SSD and I'm planning to install Gentoo on it. I've
>
> read
>
> > the Gentoo Wiki page on this and searched Google for hints on this, but
>
> since
>
> > I found out that much information was either contradictory or outdated,
>
> I'm
>
> > asking anyone with first-hand experience on this for advice.
> >
> > My system is as follows:
> >
> > - 250GB SSD
> > - 1TB HDD
> > - 16GB RAM
> >
> > I'm planning to partition the SSD this way:
> >
> > - 100 GB -> / (on my current system, / is about 70GB)
> > - 100 GB -> /home
> > - 16 GB -> swap (mainly for hibernation)
> > - 200 MB -> /boot
> >
> > /var/tmp/portage should go into a tmpfs (12GB).
> >
> > I've read that someone suggested putting also /tmp on a tmpfs. Right now,
>
> on
>
> > my system /tmp is less than 100 MB, so I believe this should cause no
> > problems, but is it necessary?
> >
> > Large files, such as Steam games and maybe distfiles should instead go on
>
> the
>
> > 1TB HDD.
> >
> > I have some doubts about the swap partition. With 16 GB of RAM I shouldn't
> > usually need swap except for hibernating (that's the reason I'm putting
>
> it on
>
> > the SSD); however, I fear that compiling some large packages could fill
>
> all
>
> > that space. Would it be bad to have the swap partition on the SSD used
>
> this
>
> > way every now and then? Should I create another swap partition on the HDD
>
> and
>
> > give it higher priority?
> >
> > What do you think? Do you have any advice on how to best set up such a
>
> system?
>
> I use a similar setup. Several top-level directories in my $HOME are bind
> mounts to a large mechanical drive. My swap (16GB) is on that drive also.
> I've found that 100MB is enough for the EFI /boot partition (but I clean
> old kernels immediately after updating).
>
> For the /tmp I use tmpfs (I use the size=100% option), and then in
> /etc/portage/make.conf I have:
>
> PORTAGE_TMPDIR="/tmp"
>
> This way I fully use /tmp when compiling large packages, and don't wear
> down my SSD.
>
> Regards.
> --
> Dr. Canek Peláez Valdés
> Profesor de Carrera Asociado C
> Departamento de Matemáticas
> Facultad de Ciencias
> Universidad Nacional Autónoma de México

Thanks for the information

Stefano