Troubles getting F9
Rick Stevens
ricks at nerd.com
Mon May 19 22:57:37 UTC 2008
Beartooth wrote:
> On Mon, 19 May 2008 11:46:21 -0700, Rick Stevens wrote:
>
>> Wait, wait. The ISO image is on /dev/fd/0? That's your stdin. That
>> makes no sense to me. I'd be leery of such a thing.
>>
>> Use something like ktorrent or transmission to pick up the torrent and
>> tell it to save the stuff to some working directory (by default,
>> transmission will download to your home directory). Then run sha1sum
>> against the .iso file(s):
>>
>> $ cd /path/where/you/downloaded/things/to $ sha1sum
>> Fedora-9-x86_64-DVD.iso
>>
>> Compare the number(s) you get against that in the SHA1SUM file in the
>> same directory as the .iso image(s). The sha1sums should be:
>>
>> 50253a35b5ba128c9a57b2a10cbd829813fc5119 (32-bit DVD)
>> f92576227484a4eeda0e86a497836c67c34d20ef (64-bit DVD)
>
> OK, remember we were talking about two different downloads --
> it's four now. (I plan to abandon the first two if either #3 or #4 works.)
>
> On my #2 machine, where I have #3 download (done with gwget), I
> have just compared the calculated sha1sum with the 32-bit one above. They
> match.
>
>> Once you have the .iso file(s) and verified the sha1sums, now you can
>> futz with things. Simply use the command I mentioned above.
>
> I think you mean growisofs -dvd-compat -Z /dev/dvd=/path/to/.iso
Yes, that's the one.
> -- but that's the one too dense (in the mathematical sense) for me; I
> don't know how to interpret what comes after Z. (I assume I just copy to
> there.)
The "-Z" means to burn an initial session. "-M" means merge this
session to an existing one on the media. The special form
-Z /dev/dvd=/path/to/.iso
means "burn an initial session to /dev/dvd and use the pre-mastered
image file at /path/to/.iso". It's right there on the man page.
>> Once you've burned the images to DVD, you can delete the .iso files. >
> It's nice to have them around until you know you have good DVDs to work
> with.
>
> Yes, I understand that part -- though I'm actually using mostly
> DVD-RW tiill I get a good one.
>
>>> Fwiw, the Lite-On is an external DVD drive; it's plugged, not
>>> into the computer directly, but into one of the ports on my MiniView G-
>>> CSIO4U USB KVM switch -- as it has been for some time. Any chance
>>> plugging it directly into the computer would help??
>> It sure couldn't hurt. I don't trust USB hubs or switches or long
>> cables for media I'm trying to burn where you only get one shot. For
>> normal R/W stuff (e.g. a USB-interfaced hard drive) it's OK (even if the
>> I/O is often slower), but you only get to try to burn that DVD once. If
>> there's a buffer underrun or something, you've got a nice coaster but
>> not a usable disc.
>
> I'll do that in a minute. Meanwhile, fwiw, machine #1 finished a
> bittorrent download. I burned it, and checked it, with Brasero. But the
> laptop can't boot from it, either in its own drive or in the external.
> <sigh>
You're sure it got burned using the .iso file as an image? The most
common error is burning the .iso file as a file. If you put the disc
into a drive (even the one you just burned it in), it SHOULD show up as
a bunch of files. If you only see one, you burned it wrong.
> OK, the external drive is now plugged directly into this machine
> (#2 machine, which has only a read-only drive of its own)), with a DVD-RW
> disk. I'll let K3B finish calculating its md5 sum, then try to burn with
> that. Stay tuned.
> - -
>> You possess a mind not merely twisted, but actually sprained. -
>
> Hey, I *like* that!
The one below is a bit more nerdy!
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- Hosting Consulting, Inc. -
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