Hi all,
I know I can write ISOs to a disk simply with the dd command, and I know when I use the SUSE Studio Imagewriter the changes I make to the ISO on the thumb key remains persistent between boots. Is is also persistent with the dd command?
Thanks!
They do pretty much the same thing. Both just copy the iso file to the raw device.
I’m not sure, but I think you are talking of the persistent storage when you use a live USB. Yes, that will be the same no matter how you copy the iso. I normally use “dd_rescue” rather than “dd” (you might need to install it). Roughly speaking, it is “dd” modified to use large buffers and to verify the writes.
good move
dd_rescue is pretty handy
I do not see any connection between how you created something using dd or the like and what you do afterwards. dd only copies the data as it is found on it’s input. It has no knowledge about what the data represents. It is just reading blocks and writing them.
On 2015-06-07 04:56, nrickert wrote:
> the iso. I normally use “dd_rescue” rather than “dd” (you might need to
> install it). Roughly speaking, it is “dd” modified to use large buffers
> and to verify the writes.
A variation with dd is to use “oflag=direct” or perhaps “oflag=nocache”,
with a largish ‘bs’.
–
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 “Bottle” at Telcontar)
I have used the cp command the trick is to copy to the device not a partition on the device. What you need is to do a simple binary copy to the device which ever tool you use. Imagewriter is a GUI so many are more comfortable with it but any program that does a unaltered binary copy will work. And Imagewriter seems to have problems running in Windows 8.X+
On 2015-06-09 16:56, gogalthorp wrote:
>
> I have used the cp command
And it is safer to use than ‘dd’; its command line syntax is easier.
–
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 “Bottle” (Minas Tirith))
It looks like if I really want to find out that I’ll need to experiment, and that dd_rescue might be something handy to look into. Thanks for your ideas!