ubermix Forums
General => General Discussion => Topic started by: pyperdown on January 03, 2013, 03:58:27 PM
-
Ok, So I must be doing something wrong.
I put in my modified key. dd if=/dev/sdb of=my_key.img. done
I now put a fresh key in, reverse the process (flip dd if and of arguments). Takes forever. ANd then will not boot.
On a hunch I boot the netbook into clonezilla and make a backup of the key that way. Much faster (odd, that). Put in a fresh key, and reverse the process. WAAAY faster than dd. And it works.
I suspect I have tripped over one of the many gaps in my knowledge - can anyone enlighten me as to where I went wrong?
BTW, once I got the key backed up with clonezilla, I stuck as many keys as I could into the netbook, and did the one to multiple restore. quick. Nice trick for making a bunch of keys, though I somehow suspoect this too is common knowledge. :/
-
Hi,
In my experience, adding bs=1M (or more, bs=4M) makes things go much faster with dd, especially when writing to a new key.
So it would be:
dd if=/dev/sdb of=my_key.img bs=1M
Put in a new key, and then:
dd if=my_key.img of=/dev/sdb bs=1M
I hadn't thought about using CloneZilla, but that one to multiple restore looks like a really neat way to get things going for the summer mass-imaging!
-
My tech is all smiles - we were imaging them (about 80 of 'em) with clonezilla and while it worked fine it was rather slow. I did like 6 keys in 45 minutes. Actually used one of the netbooks to clone the keys by booting to clonezilla and pointing at the key image I made.
-
We actually use Clonezilla, but we put Clonezilla and the image on the stick. In our case, it meant that we could use 4Gb sticks (that we already had in a significant number) instead of 8Gb. Our customized version has grown quite a bit, and Clonezilla seems to compress more than the standard Ubermix installer.
But I duplicate the sticks using dd, as I said above. It's fast enough for my needs so far. But I'll definitely give your idea of one to multiple a try.