Puppy Linux Discussion Forum

hamoudoudou · Joined: 24 Jul 2014 Posts: 1317 Location: rabat

just to clarify how Ram is loaded at boot

gyro

bigpup · Posted: Mon 16 Apr 2018, 23:51 Post subject:

Simply watch the boot process messages.
They tell you what gets loaded and when.

hamoudoudou · Joined: 24 Jul 2014 Posts: 1317 Location: rabat

The Puppy Linux Trade mark is to be fast because it runs full in RAM.
"Puppy Linux is yet another Linux distribution. What's different here is that Puppy is extraordinarily small, yet quite full-featured. Puppy boots into a ramdisk and, unlike live CD distributions that have to keep pulling stuff off the CD, it loads into RAM. " Xenialpup 7.5, Distrowatch

Searching and asking at boot which pupsaves to load, then immediately loading one of them. We are used to that... and that is the reason why a Puppy must be tiny..
Sure you can run without pupsave, and load on the fly SFS just needed for the session.. by a click on it.. easy.
If the 'click on it' process is too easy, sure experts can write scripts, (re-write the script hidden behind GUI's, located in sbin).

gyro · Posted: Thu 19 Apr 2018, 00:46 Post subject:

@hamoudoudou,
Unfortunately the "Loading" you refer to in your image means that the savefile/savefolder is being loaded into the aufs stack.
Not that it is being copied into ram.

I recognise only 1 authority as to what the "init" script does, the source code of the "init" script.

gyro

bigpup · Posted: Thu 19 Apr 2018, 04:01 Post subject:

hamoudoudou

Also, that image you posted is not showing a normal boot up.
It is showing a boot up, doing a update of the Puppy OS version.
Totally different boot process from a normal boot up.

hamoudoudou · Joined: 24 Jul 2014 Posts: 1317 Location: rabat

this screensot perhaps fits better to show that pupsave is loaded before main SFS i hope... Screenshot from you tube tutorials

bigpup · Posted: Thu 19 Apr 2018, 23:36 Post subject:

That is the way Puppy 4.3.1 did it.

Newer versions of Puppy load/mount the Save last.

Example:
Xenialpup 7.5 loads in this order.
Xenialpup.sfs into ram.
zdrv_xenialpup.sfs into ram.
xenialpupsave loaded

Again, saves are not loaded into ram, only mounted.

hamoudoudou · Joined: 24 Jul 2014 Posts: 1317 Location: rabat

i agree about how xenialpup loads.. and that is new..
About DVD-rw and sessions saved on it that is a fact that you can remove DVD during session, all is loaded in RAM
pendrive : Pupmode13

I Never use Hard Drive Sorry
The default mode for hard drive running is PUPMODE=12. In this mode, all writes are immediately passed through onto the save file image. Thus, there will be frequent writes as you keep modifying data/develop temp files, etc...
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hamoudoudou · Joined: 24 Jul 2014 Posts: 1317 Location: rabat

Pendrive removed as a DVD would be removed. No external stuff , all in RAM.. No drive no pendrive, and all my apps added in pupsave are here, ready to run.. no pupsave, pendrive is not plugged.
If i was not sure one hour ago, now i am sure (and certain) that pupsave is in RAM.

[root@pupjibaro ~] $ lsusb

unplug

hamoudoudou · Joined: 24 Jul 2014 Posts: 1317 Location: rabat

that is true that in latest Puppies, and Pupjibaro Strech too, pupsave loads After ISO contained sfs, zdrv, ydrv.. and so on). why do they change order ?

musher0 · Posted: Fri 20 Apr 2018, 05:10 Post subject:

musher0

bigpup · Posted: Fri 20 Apr 2018, 16:03 Post subject:

Now you are getting into what pupmode it is running in.
The save is used differently in each pupmode.

musher0 · Posted: Fri 20 Apr 2018, 16:51 Post subject:

Hi bigpup.

Which is why I am more comfortable doing it "by hand", with one-liners such
as the ones above, on a "Pup-by-Pup" basis, instead of using the more
theoretical (IMO) pupmode approach. To each his own, I guess.

TWYL.