[kwlug-disc] Backup a USB Flash Drive to DVD.

[William Park]

To just copy files and directories, you can use any "burner".  I use 
"k3b" on my KDE desktop.  I used to use command line "growisofs", but I 
don't burn CD/DVD much, so GUI frontend is easier.

Now, to make it bootable, that's different.

 1. Since your USB stick is already bootable, you can make duplicate USB
    stick and copy the image to file on your computer as backup.  That
    way, you can make another USB stick if needed. "dd" is what you use.
 2. If your USB stick is already "isohybrid" format, then just burn it
    to CD/DVD as image.  Depending on your burner program, you may read
    directly from USB stick, or make image of USB stick first and use that.
 3. If your USB stick is just harddisk format, then you may be able to
    convert and burn at the same time.  Depending on your burner.

I recommend option #1.  It came as USB stick, so stick with that.

--William


On 7/13/21 9:45 PM, John Driezen wrote:
> I recently purchased the latest version of Eurosoft's PC Check. The 
> software came on two 8 GB USB thumb drives.  I would like to know how 
> to back the contents of the thumb drives up, preferably to a bootable 
> CDROM, which I can not accidently overwrite, as PC Check contains 
> options to destructively erase hard drives.
>
> The output of df -hT shows this:
>
> Filesystem     Type      Size  Used Avail Use% Mounted on
> /dev/sdh1      vfat      6.5G   63M  6.5G   1% /media/john/EUROSOFT
>
> As you can see, the thumb drive is mostly blank and the files will 
> easily fit on a CDR.  PC Check boots to EURODOS, and runs PC Check 
> from there.
>
> I know I can use mkisofs to create an iso file containing all the 
> files from the mountpoint /media/john/EUROSOFT, and then write that 
> iso file to a CDR or DVD-R.  How can I make said CDR or DVD-R 
> bootable?  I did read the man page for mkisofs, but find all the 
> options confusing.
>
> John Driezen
>
> jdriezen at sympatico.ca
>
>
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