Re: dual boot Windows10 fedora28

[Peter Lesterhuis]

>  And you won't mount at /mnt/sda2, you'll mount at /home, /usr
> /tmp in
>  order to do what you want. You'll have to create those directories
>  under your new partition, and make sure they have the correct
>  parameters (the same as /usr and /home have under /). 
Thank you, and others, for
replying.

I learned from you that /usr and /tmp should be on the SSD-drive in 
order to have maximal profit from this fast drive.

Now I would like to have only "/home" on the HDD. This is the folder 
which is going to contain large files (video, musix, etc).

I created a new partition on the HDD, mounted it (there is a line now in 
fstab).

During the installation /home is now on the SSD. Can I make a symlink to 
an new /home at the HDD-drive?

What would be the right command, if the mountpoint of de HDD-partion is 
/mnt/linux-data

Would that be: "ln -s /home /mnt/linux-data/home"?

(Seems far to simple).

Or is the idea of symlinking not right.

dual boot Windows10 fedora28

[George N. White III]

On Sun, 3 Jun 2018 at 14:22, Peter Lesterhuis <peterlesterhuis(a)telfort.nl&gt;
wrote:

>  > And you won't mount at /mnt/sda2, you'll mount at /home,
> /usr /tmp in
>  > order to do what you want. You'll have to create those directories
>  > under your new partition, and make sure they have the correct
>  > parameters (the same as /usr and /home have under /).
>  Thank you, and others, for replying.
>
>  I learned from you that /usr and /tmp should be on the SSD-drive in
>  order to have maximal profit from this fast drive.
>  
They are needed to boot.  If there is an issue with your rotating drive, it
is very helpful to have a system that can still boot.


>  Now I would like to have only "/home" on the HDD. This is
> the folder
>  which is going to contain large files (video, musix, etc).
>
>  I created a new partition on the HDD, mounted it (there is a line now in
>  fstab).
>
>  During the installation /home is now on the SSD. Can I make a symlink to
>  an new /home at the HDD-drive?
>
>  What would be the right command, if the mountpoint of de HDD-partion is
>  /mnt/linux-data
>
>  Would that be: "ln -s /home /mnt/linux-data/home"?
>  
Not quite.  Rather than asking for recipes to follow blindly, you should
teach yourself by doing some simple examples.  Start with
https://en.wikipedia.org/wiki/Ln_(Unix) for background, then make
up some exercises to get some practical experience before making
changes to critical directories or files.

>  (Seems far to simple).
>
>  Or is the idea of symlinking not right.
>  
Symbolic links are very easy to use and can be very helpful, but
do sometimes cause confusion when things like "cd ../../" put you
in an unexpected place.   Symbolic links have been around since
before linux and should work the same way on all linux and unix systems.

Some years ago, unix workstations from companies like Sun and SGI
came with relatively small system disks, and were often used with much
larger external disk arrays to hold data.   Typically, users would have a
home
directory that contained startup scripts and application configuration
data.  Thery would also have symbolic links to directories on the
disk arrays.   The same sort of approach is useful today with small
SSD system disks and arrays of rotating storage.

There are tools that will show the total space used by directories.
You may be able to move a few big directories to rotating storage
while preserving most of the current home directory on the SSD.

>  -- 
George N. White III

dual boot Windows10 fedora28

[Samuel Sieb]

On 06/03/2018 10:21 AM, Peter Lesterhuis wrote:
> > And you won't mount at /mnt/sda2, you'll mount at /home,
> /usr /tmp in
> > order to do what you want. You'll have to create those directories
> > under your new partition, and make sure they have the correct
> > parameters (the same as /usr and /home have under /).
>  Thank you, and others, for replying.
>  
>  I learned from you that /usr and /tmp should be on the SSD-drive in 
>  order to have maximal profit from this fast drive. 
Remember that /tmp does not use disk space.  It's a RAM filesystem.

>  Now I would like to have only "/home" on the HDD. This is
> the folder 
>  which is going to contain large files (video, musix, etc).
>  
>  I created a new partition on the HDD, mounted it (there is a line now in 
>  fstab). 
If you modified the fstab, you could have just changed the current /home 
line to point to the new partition instead.

>  During the installation /home is now on the SSD. Can I make a symlink
> to 
>  an new /home at the HDD-drive? 
As I mentioned before, the easiest way would be to do a reinstall. 
Since the /home partition is on the SSD right now, if you put /home 
somewhere else, that space will be lost.  You most likely would want 
that space in your root partition instead.

dual boot Windows10 fedora28

[Tim]

Allegedly, on or about 3 June 2018, Samuel Sieb sent:
>  Remember that /tmp does not use disk space.  It's a RAM
> filesystem. 
Only if you mount it with the right options.

If you mount it with other options, or don't mount it and just have a
/tmp directory, it's going to be normal filesystem.

-- 
[tim@localhost ~]$ uname -rsvp
Linux 4.16.7-100.fc26.x86_64 #1 SMP Wed May 2 21:45:56 UTC 2018 x86_64

Boilerplate:  All mail to my mailbox is automatically deleted.
There is no point trying to privately email me, I only get to see
the messages posted to the mailing list.

I'd just like to say that vinyl record crackles and pops are far
less annoying than digigigigital mu-u-u-u-usic hiccicicicups and
yooo-----------------u tu-----be ....... pauses.

dual boot Windows10 fedora28

[Samuel Sieb]

On 06/03/2018 04:37 PM, Tim via users wrote:
>  Allegedly, on or about 3 June 2018, Samuel Sieb sent:
> > Remember that /tmp does not use disk space.  It's a RAM filesystem.
>  
>  Only if you mount it with the right options.
>  
>  If you mount it with other options, or don't mount it and just have a
>  /tmp directory, it's going to be normal filesystem. 
Ok, I didn't think I needed to spell it out.  By default, Fedora 
configures /tmp as a tmpfs filesystem with no disk backing.

dual boot Windows10 fedora28

[Patrick O'Callaghan]

On Sun, 2018-06-03 at 16:41 -0700, Samuel Sieb wrote:
>  On 06/03/2018 04:37 PM, Tim via users wrote:
>  > Allegedly, on or about 3 June 2018, Samuel Sieb sent:
>  > > Remember that /tmp does not use disk space.  It's a RAM filesystem.
>  > 
>  > Only if you mount it with the right options.
>  > 
>  > If you mount it with other options, or don't mount it and just have a
>  > /tmp directory, it's going to be normal filesystem.
>  
>  Ok, I didn't think I needed to spell it out.  By default, Fedora 
>  configures /tmp as a tmpfs filesystem with no disk backing. 
Except that (AFAIK) there is implicit disk backing via swap. Or is that
wrong?

poc

dual boot Windows10 fedora28

[Samuel Sieb]

On 06/04/2018 02:42 AM, Patrick O'Callaghan wrote:
>  On Sun, 2018-06-03 at 16:41 -0700, Samuel Sieb wrote:
> > On 06/03/2018 04:37 PM, Tim via users wrote:
> >> Allegedly, on or about 3 June 2018, Samuel Sieb sent:
> >>> Remember that /tmp does not use disk space.  It's a RAM filesystem.
> >>
> >> Only if you mount it with the right options.
> >>
> >> If you mount it with other options, or don't mount it and just have a
> >> /tmp directory, it's going to be normal filesystem.
> >
> > Ok, I didn't think I needed to spell it out.  By default, Fedora
> > configures /tmp as a tmpfs filesystem with no disk backing.
>  
>  Except that (AFAIK) there is implicit disk backing via swap. Or is that
>  wrong? 
Interesting, you are correct.  I didn't realize that tmpfs would swap 
out.  The previous RAM filesystems wouldn't.  I don't know if that's an 
improvement though...  Anyway, so yes, it does have some implicit 
backing via the swap partition.  However, that is still irrelevant in 
the context of partitioning the SSD other than possibly the size of the 
swap.

dual boot Windows10 fedora28

[Tim]

Tim:
> > Only if you mount it with the right options.
> > If you mount it with other options, or don't mount it and just have
> > a /tmp directory, it's going to be normal filesystem. 
Samuel Sieb:
>  Ok, I didn't think I needed to spell it out.  By default, Fedora
>
>  configures /tmp as a tmpfs filesystem with no disk backing. 
I think it needed it.  They originally talked about mounting a /tmp
partition (and I don't know if that was fulfilling a need, or just a
habit).  So it bares pointing out that it won't always be tmpfs.

-- 
[tim@localhost ~]$ uname -rsvp
Linux 4.16.7-100.fc26.x86_64 #1 SMP Wed May 2 21:45:56 UTC 2018 x86_64

Boilerplate:  All mail to my mailbox is automatically deleted.
There is no point trying to privately email me, I only get to see
the messages posted to the mailing list.

Evolution keeps on telling me that it's refreshing,
but I still want to go and get a drink.