Need to make ISO of Live USB Partition

[lonestarshack]

I created a FC12 Live USB and it works great. I created it with 1 Gb of persistent storage and I've made all the changes that I need to make and it is operating as advertised. Now, I'm trying to make an ISO image of all my changes so that I can then later use it to create a duplicate live USB stick so that I don't have to go through all of my changes again. However, I'm having trouble making an ISO of the FC12 partition on my USB stick. Any ideas? Thanks in advance.

[jonathonp]

To backup:


To find the device of your flash drive plug it in and type at the prompt:

df -h

Now unmount your flash drive

Then to back it up:

dd  if=/dev/name-of-device of=/home/username/flash-backup.img

dd=disc dump
if=Input file
of=output file

To Restore the image:

dd if=/home/username/flash-backup.img of=/dev/name-of-device

[lonestarshack]

Thank you for the quick reply Johnny. I guess the only unfortunate thing is that dd creates an image the same size as my usb drive rather than just imaging the contents of the usb partition.

[jonathonp]

To save space, you can compress data produced by dd with gzip, e.g.:

dd if=/dev/your-flash-drive | gzip -c  > /home/username/image.img

You can restore your disk with:

gunzip -c /home/username/image.img.gz | dd of=/dev/your-flash-drive

Unfortunate about the space.

DD should accurately capture the bit state of an unmounted drive. Best not to dd a live filesystem as it can corrupt files since the program has no understanding of the file-system activity that may be going on, and makes no attempt to mitigate it. If a write is partially underway, you will get a partial write.

How big is u flash drive?

---------- Post added at 01:58 PM CST ---------- Previous post was at 12:48 PM CST ----------

Partimage backs up data only.

yum install partimage

see here http://www.psychocats.net/ubuntu/partimage for how to

or try clonzilla

http://clonezilla.org/download/sourc...-zip-files.php