Porteus Memory Card?

Technical issues/questions of an intermediate or advanced nature.
fullmoonremix

Porteus Memory Card?

Post#1 by fullmoonremix » 01 May 2016, 13:01

Salutations... :good:

I'm interested in booting Porteus from a memory card.
http://www.ebay.com/itm/Black-New-USB-2 ... SwBahVbo7z

I would be interested in finding out which type has been demonstrated to actually work and what type is proven to actually lock.

"Best Regards"... :beer:

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Re: Porteus Memory Card?

Post#2 by beny » 01 May 2016, 19:48

i have lexar sdxc,sony sdhc,sandisk extreme sdhc,samsung evo sdxc,tested on porteus and other system, so work out of the box with our system,ext 4 without jounaling.
.

fullmoonremix

Re: Porteus Memory Card?

Post#3 by fullmoonremix » 01 May 2016, 20:34

Salutations... :good:

Thanks beny...

Which one has a "confirmed" secure write protect switch?
(...many have the this feature but some can be spoofed)

"Best Regards"... :beer:

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Re: Porteus Memory Card?

Post#4 by beny » 01 May 2016, 21:07

all have the switch to lock write on,so do not worry,and most interesting is the speed rate,very responsive,you know that you can put the password at syslinux if you want, so no one have access at your boot system without know password

fullmoonremix

Re: Porteus Memory Card?

Post#5 by fullmoonremix » 01 May 2016, 22:02

Salutations... :good:

Unfortunately... it has been documented the physical switch can be spoofed. :wall:
I saw a thread somewhere on the forum that had the links.

In any case... if you know of anyway to avoid this I'd be interested.

"Best Regards"... :beer:

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Re: Porteus Memory Card?

Post#6 by fred08155 » 15 May 2016, 11:28

Unfortunately the switch on the card is no physical write protection. It triggers a contact in the card reader only. Most of the card readers ignore the write protect switch or are missing the internal contact that should be triggered by the switch...

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Re: Porteus Memory Card?

Post#7 by brokenman » 15 May 2016, 17:24

Format it as ISO9660. That'll stop writing. :crazy:
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Re: Porteus Memory Card?

Post#8 by fullmoonremix » 20 May 2016, 13:44

Salutations... :good:
brokenman wrote:Format it as ISO9660. That'll stop writing. :crazy:
How is that done... step by step? :unknown:

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Re: Porteus Memory Card?

Post#9 by brokenman » 20 May 2016, 20:28

Just dd the ISO onto the USB drive.
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Re: Porteus Memory Card?

Post#10 by fullmoonremix » 22 May 2016, 02:53

Salutations... :good:

I assume there are various parameters. What is the exact command line string?

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Re: Porteus Memory Card?

Post#11 by brokenman » 22 May 2016, 22:36

Code: Select all

dd if=/path/to/porteus.iso of=/dev/sdb
Be careful. dd (disk destroyer) can nuke a drive in a heartbeat. Take note that the output file (of=) does not contain a partition number but a block device.
This will write Porteus to the USB device and use the entire device.
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Re: Porteus Memory Card?

Post#12 by brokenman » 26 May 2016, 20:32

Yes. You can reformat using gparted.
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Re: Porteus Memory Card?

Post#13 by wread » 27 May 2016, 19:22

@fullmoonremix
I wish I could understand all those advanced concepts you mention in your posts... :%) and I guess your Porteus distribution PekWM Edition make use of most of those features.

This forum has a section for Porteus derivatives; IMHO it would be nice if we could share your PeWM version, so the members of this forum could check on the new ways you propose :Yahoo!:

Regards!
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Re: Porteus Memory Card?

Post#14 by fullmoonremix » 27 May 2016, 21:59

Salutations... :good:

@ wread... my deepest heartfelt apologies regarding sharing my ideas. I just can't seem to catch a break.
After 2yrs of struggling to put together "HardKnox" (Hardened Porteus w/PekWm) I got hit with a microcontroller firmware bug.

It wiped out all my gear ($1500+ :cry: ) so I've been grounded until the 1st (payday) when I can make a secure ("Coreboot") box.
I have a backup of everything I did... so it should take me 4 weeks from the time I build the box to release my derivative.

Perhaps if I get lucky this weekend I might manage to boot Porteus on Chromebook ("Coreboot" secured) so I don't have to wait for the box.
However... I will still need brokeman's help to harden the kernel.

HardKnox "features" (this part already works)...
viewtopic.php?f=113&t=5682

The box I'm making (I already have the case)...
viewtopic.php?f=61&t=5878

"Best Regards"... :beer:

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Re: Porteus Memory Card?

Post#15 by taylor » 20 Jan 2017, 08:36

brokenman wrote:Format it as ISO9660. That'll stop writing. :crazy:
brokenman wrote:Just dd the ISO onto the USB drive.
brokenman wrote:

Code: Select all

dd if=/path/to/porteus.iso of=/dev/sdb
Be careful. dd (disk destroyer) can nuke a drive in a heartbeat. Take note that the output file (of=) does not contain a partition number but a block device.
This will write Porteus to the USB device and use the entire device.
Can this be used for Sata connected devices ??

I have a small 8gb Msata card that i never use and wondered if i could use it as a fast read only boot device.

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