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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

red and dead, REDunDead

hello there
i have'nt understand how it is working
 
REDundead V1.20 READ ME

REDundead recovers R3D files from media with damaged filesystems or erased/formatted media. The percentage recovered can vary depending on the condition of the media/filesystem at the time of recovery.

WARNING: Prior to a new project, all sensitive data should be securely erased on media. Failing to do so could result is previously deleted data being recovered from formatted media by REDundead.


Usage:
REDundead <input device or file> <output dir>
or
REDundead <input device> <output dir> <start MB>

To get the device you want to recover from, you can use "diskutil list" in the terminal.
If it lists "disk9" for your device, use "/dev/rdisk9" for REDundead. (note rdisk instead of disk).

Example: REDundead /dev/rdisk9 /Volumes/newdisk
 
That's great news Jeff, nice work (it was you that built this, I'm guessing?).

One quick Q - what's the best method for "securely" erasing data on the disks? We definitely can't have footage going out in a way that can be recovered by other users!

Cheers,
Dom.
 
hello
for people who are not awake for doing some lines in the terminal
is it possible to explain step by step the method to recover the files?
is it working with drive who don't want to mount in the mac?
many thanks for reply
 
Dominic Jones said:
That's great news Jeff, nice work (it was you that built this, I'm guessing?).
Click to expand...

No, it was made by RED. Not me.

One quick Q - what's the best method for "securely" erasing data on the disks? We definitely can't have footage going out in a way that can be recovered by other users!
Click to expand...

I'm already thinking on this and will try to have a good solution today. Probably a format via disk utility and extra zeroing of the data. I need to know because I shoot a lot of government stuff. FWIW, I haven't had a chance to play with this yet this morning. I'm going to try and recover some CF cards that have been formatted in the camera to see what comes up.
 
Disk Utility on mac has a secure erase feature and a zero disk option. DD is another option.

From the Disk utility man page:
secureErase [freespace] level device
Securely erase a disk or freespace on a mounted volume. Ownership of the affected disk is required. Level should be one of the following:

o 1 - Single pass randomly erase the disk.

o 2 - US DoD 7 pass secure erase.

o 3 - Gutmann algorithm 35 pass secure erase.
 
Jeff Kilgroe said:
No, it was made by RED. Not me.
Click to expand...
Ah, apologies to the Red team then!

Thanks for all the info on secure erasing guys, something I know nothing about so great to get some help with this - Mark from OffHollywood mentioned on another thread that they were able to pull out several generations of clips from their drives - scary stuff, so this is definitely something we need a solid solution for...

So that command-line utility does the same erase procedure as SPX, by the sounds of things? That's good news...

Cheers again,
Dom.
 
Last edited:
Sweet! It's a good time to be a dit! (unless of course you actually have to use REDundead because by that point someone is probably yelling at you/firing you . . .:emote_hanged: )

Red, please keep it coming with these amazing utilities, every advancement means we can sell the workflow and data security to that many more clients.

I always zero out client drives, so I guess now rental houses will have to start doing the same thing with every piece of Red media.

Okay, now let's start talking about Offhollywood Mark's idea for a R3D verification utility.
 
OK, another quick Q:

Since I really don't want to experiment around with this and get it wrong, does the extra 'r' on the disk volume carry over to this command as well? (Where does the 'r' come from, never come across that before, I don't think?).

I.e. to secure erase the whole disk with the Gutmann method, would the correct command be:

secureErase 3 /dev/<diskname>

or:

secureErase 3 /dev/r<diskname>

???

Cheers, and sorry if this should all be obvious!
Dom.
 
Correct command line from the terminal is:

diskutil secureErase 1 /dev/disk1

The 1 is the level of security. 1 is basic randomized zeroing of data, single pass. 2 is 7 pass and takes a very long time. 3 is the 35-pass Gutmann method which takes forever and a day. /dev/disk1 is your device.
 
david farland said:
Deanan,

Is there an ETA on the PC version?
D
Click to expand...

Since it's an emergency tool we felt it was better to get it out sooner rather than wait till we were able to port it to windows. I don't have an ETA yet.
 
It is great to see a tool like that to come out. But personally i had 100% results using File Salvage. It gives me great flexibility i can recover only the files need and not the content of the entire disk. Yes i have to rename the files later and do a bit of slip action but most of that is automated.

So a GUI and a choice of what to recover would be very nice additions
 
Jeff Kilgroe said:
Correct command line from the terminal is:

diskutil secureErase 1 /dev/disk1

The 1 is the level of security. 1 is basic randomized zeroing of data, single pass. 2 is 7 pass and takes a very long time. 3 is the 35-pass Gutmann method which takes forever and a day. /dev/disk1 is your device.
Click to expand...
Thanks Jeff, you're a star!

Dom.
 
Dominic, you can also do the secure erasing with the disk utility in Applications>Utilities if you don't want to mess with the command line.
 
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