[Beta testing needed] Auto SD partitioner and rootfs installer.

[Linux-SWAT]

Hi !


I'm writing an auto SD partitioner to simplify the Slackware installation.


It's a work that can be reused to create a neat Pandora quick partitioner.


Here what i've done:


I fixed a default setup for each card size, 8G, 16G, 32G etc...


It's a big ext2 partition + 256M swap.


I used one of my 8G card and dumped the partition structure with sfdisk:


sfdisk -d /dev/mmcblk0 > 8G.dump


# partition table of /dev/sde


unit: sectors


/dev/sde1 : start= 8192, size= 14983168, Id=83


/dev/sde2 : start= 14991360, size= 524288, Id=82


/dev/sde3 : start= 0, size= 0, Id= 0


/dev/sde4 : start= 0, size= 0, Id= 0


Using this, i can reproduce this exact structure on any other card:


cat 8G.dump | sfdisk /dev/mmcblk1


1- My question is, what is the margin i should left at the end of the card, as all 8G cards have not the same exact size ? I think of 64M. Do you think it's enough for 8G cards ?


What about bigger cards ?


2- And another question, how to i know which slot is used ? mmcblk0 is the first card inserted, but i would like to know if it's in the left or right slot.

 

[Linux-SWAT]

-= Bump =-

 

[Linux-SWAT]

Is there a variable around, when the OP boots, that says if its booted from the nand or the sd1 ?


Or do i have to grep mount or something like that ?

if (mount | grep ubi0:rootfs\ on\ /\ type)


then what to do


fi


if (mount | grep /dev/root\ on\ /\ type)


then what to do


fi

 

[Linux-SWAT]

Ok, some bash question, how do i extract the /media/NAME/ from:

PND : /media/NAME/pandora/menu/whatever

 

[Linux-SWAT]

Some progress here, i figured out how to know which card is where.


It was pretty simple, reading dmesg, mmc0 is the left slot, and mmc1 is the right one.


I continued to write the pnd. I now need to polish it a bit, enhance some things and fully test it.

 

[Linux-SWAT]

Ok, have a early beta here.


Will work with sandisk 8G extreme hd video 30MB/s and 32G extreme 48MB/s. You may encounter problems if you use other cards.


After partitioning and formatting, it will download and install Slackware on it.


USE IT ONLY WITH CARDS WITH NO PRECIOUS DATA.


http://slackware.openpandora.org/pandora/index.php?dir=sl4p%2Ftools%2Fsl4p-pack%2Fbeta

 

[Linux-SWAT]

I've re-uploaded the same 0.1 new beta.


So now it should work with any 8G, 16G and 32G SD cards.


http://slackware.openpandora.org/pandora/index.php?dir=sl4p%2Ftools%2Fsl4p-pack%2Fbeta

 

[Linux-SWAT]

Ok a new version again.


Can also download and install the latest pandora-rootfs.

 

[Linux-SWAT]

If someone can give me results of sfdisk with 4G, 64G and 128G, i can use some parameters to enhance compatibility.


Do this:


sudo sfdisk -d /dev/mmcblk0


or


sudo sfdisk -d /dev/mmcblk1

 

[spiralofhope]

4 GB =

/dev/sde1 : start=	 8192, size=  7766016, Id= b

/dev/sde2 : start=		0, size=		0, Id= 0

/dev/sde3 : start=		0, size=		0, Id= 0

/dev/sde4 : start=		0, size=		0, Id= 0

32 GB =

/dev/sde1 : start=	 8192, size= 63068160, Id= c

/dev/sde2 : start=	    0, size=	    0, Id= 0

/dev/sde3 : start=	    0, size=	    0, Id= 0

/dev/sde4 : start=	    0, size=	    0, Id= 0

 

[Linux-SWAT]

Thank you :^).

 

[Linux-SWAT]

A bash question, how can i extract the "/media/SDCARD" from that kind of string, whatever "SDCARD" is ?


PND : /media/SDCARD/pandora/menu/sl4p.pnd

 

[sebt3]

If that's to guess the appdata directory then $APPDATADIR is your friend (whithin the PND laucher script)


else I guess something like :


PND=/media/SDCARD/pandora/menu/sl4p.pnd


CARDNAME=$(echo $PND|cut -f3 -d/)


should do it

 

[Linux-SWAT]

Actually the input is:

PND : /media/SDCARD/pandora/menu/sl4p.pnd

So i have to find /media/ in it, then what's after until another "/".


I need that precise magic formula, because i'll use it later in another case.


I'm currently enhancing the security of my app, which already works pretty well.

 

[sebt3]

the cut -f3 -d/ will still work

 

[Linux-SWAT]

Ok so i'll check it.


Then you'll test my .pnd with your sd cards ;^).


Thx.

 

[Linux-SWAT]

I still need


sudo sfdisk -d /dev/mmcblk0


or


sudo sfdisk -d /dev/mmcblk1


For 64G and 128G cards


So i uploaded a new 0.2 version.


It do some more security check to ensure nothing wrong happens.


It also checks md5sums.


Get it here:


http://slackware.openpandora.org/pandora/index.php?dir=sl4p%2Ftools%2Fsl4p-pack%2Fbeta


Please test and report.

 

[Linux-SWAT]

Ooops, seems the 0.2 doesn't work as intended.


Removing for now.

 

[Linux-SWAT]

Ok, reuploaded the 0.2.

 

[Linux-SWAT]

Some screenshots: