On Mon, 8 Mar 2021, John Foust via cctalk wrote:
I'm familiar with the various undelete tools for Windows and Linux.
Such tools may not exist or make sense for older file systems.
Windows/MS-DOS was certainly not unique nor original in marking file
primary directory entries (FPDE) as deleted,
At 03:16 AM 3/8/2021, Tor Arntsen via cctalk wrote:
>Linux distros come with a standard tool to do some of that,
>'testdisk'. From the overview:
I'm familiar with the various undelete tools for Windows and Linux.
Such tools may not exist or make sense for older file systems.
Entire files would
On 2021-03-05 09:41, John Foust via cctalk wrote:
>
> This situation makes me hesitant to release disk images from the past.
> It's one thing to do it with disks that were mine and to take responsibility
> for my risk; it's another to release disks once owned and used by others.
> Do the unused se
On Fri, 5 Mar 2021 at 15:41, John Foust via cctalk
wrote:
>
>
> After thinking about disk imaging tools like Greaseweasel,
> I started thinking about tools that would grab and examine the unused
> portions of disks.
>
> It's obviously file-system dependent. At one level we know of
> "undelete" to
At 07:55 PM 3/6/2021, John Foust via cctalk wrote:
>And I guess I hadn't thought of that case where the file system
>named the number of bytes in the file and that the unused ends
>of blocks could also contain stuff, too. Is there a name for those bytes?
An interesting analysis of "slack bytes"
At 07:20 PM 3/6/2021, Chuck Guzis via cctalk wrote:
>The data forensics folks are at least 20 years ahead of you, John!
>They're interested in *everything* on disk, active or not.
Yes, I've looked at some of the high-end tools and once wondered about
a career in data forensics. I've had a few con
On 3/5/21 6:41 AM, John Foust via cctalk wrote:
>
> After thinking about disk imaging tools like Greaseweasel,
> I started thinking about tools that would grab and examine the unused
> portions of disks.
The data forensics folks are at least 20 years ahead of you, John!
They're interested in *ev
On Fri, Mar 5, 2021 at 7:41 AM John Foust via cctalk
wrote:
>
> After thinking about disk imaging tools like Greaseweasel,
> I started thinking about tools that would grab and examine the unused
> portions of disks.
>
I've used this to recover a couple of Univation utilities from a disk that
the
> On Mar 5, 2021, at 5:02 PM, Glen Slick via cctalk
> wrote:
>
> On Fri, Mar 5, 2021 at 1:46 PM Paul Koning via cctalk
> wrote:
>>
>> Yes, RT11 has contiguous files. That actually made it rather unusual. For
>> example, while RSTS supports contiguous files that isn't the default and
>>
On Fri, Mar 5, 2021 at 1:46 PM Paul Koning via cctalk
wrote:
>
> Yes, RT11 has contiguous files. That actually made it rather unusual. For
> example, while RSTS supports contiguous files that isn't the default and
> because of disk fragmentation wasn't commonly used.
On VMS you can copy files
> On Mar 5, 2021, at 4:11 PM, Boris Gimbarzevsky via cctalk
> wrote:
>
> Recovering data from disks was a lot easier 30 years ago when most
> filesystems had contiguous files and it was just a matter of finding file
> boundaries. Was very glad of this when accidentally wiped first 200 bloc
Recovering data from disks was a lot easier 30 years ago when most
filesystems had contiguous files and it was just a matter of finding
file boundaries. Was very glad of this when accidentally wiped first
200 blocks of an RT-11 RK05 and just had to write a FORTRAN program
to copy blocks of dat
Three obvious possibilites for tools to help:
1) A program that makes a single large file out of all unallocated blocks,
for later study and breaak-up in an editor.
2) A prograam that makes a separate file out of each unallocated block,
for later study and appending in an editor.
3) An INTER
After thinking about disk imaging tools like Greaseweasel,
I started thinking about tools that would grab and examine the unused
portions of disks.
It's obviously file-system dependent. At one level we know of
"undelete" tools that could piece together recently deleted files
and restore them
14 matches
Mail list logo
