lubuntu-desktop team mailing list archive

[Bob Trevithick <bob.trevithick@xxxxxxxxx>]

Hi Phill,

Yes, the md5sum of the Maverick alpha-2 CD I burned checks out
correctly using that approach.  Sorry, need more coffee or something.
:)

Bob

On Mon, Jul 5, 2010 at 8:39 AM, Phillip Whiteside <phillw@xxxxxxxxxx> wrote:
> Hi Bob,
> you can use md5sum from the command line to check the downloaded iso. If
> you're a bit rusty on the
> command http://forum.phillw.net/viewtopic.php?f=18&t=94 has the 10.04
> version, just change the file name.
> To check the CD you'd need to know the size of the iso file (I haven't
> downloaded it yet) and divide it by 2048, that would then be the figure for
> count in the dd check
> For the 10.04 release, the filesize is 546285568 and 546285568 / 2048 =
> 266741 so the command is.
> dd if=/dev/cdrom bs=2048 count=266741 | md5sum
> It is all covered in detail
> at https://help.ubuntu.com/community/HowToMD5SUM The reason for using the
> block size of 2048 is that it makes the checking of the cd much faster than
> using a block-size of one (try it some time !!), that document also explains
> why you cannot just do md5sum /dev/cdrom.
>
> Regards,
> Phill.
>
> On Mon, Jul 5, 2010 at 12:41 PM, Bob Trevithick <bob.trevithick@xxxxxxxxx>
> wrote:
>>
>> Hi Phill,
>>
>> The ISO I'm using is the one Julien pointed us to in this list.  The
>> Maverick beta:
>>
>> Torrent:
>> http://people.ubuntu.com/~gilir/lubuntu-maverick-alpha2.iso.torrent
>> Download:
>> http://people.ubuntu.com/~gilir/lubuntu-maverick-alpha2.iso
>> Md5sum:
>> http://people.ubuntu.com/~gilir/md5sum.txt
>>
>> Isn't that the one we're all working with at this point?  If not, then
>> I'm more confused than I realized. :)
>>
>> Regards,
>> Bob
>>
>> On Sun, Jul 4, 2010 at 10:51 PM, Phillip Whiteside <phillw@xxxxxxxxxx>
>> wrote:
>> > Hi Bob,
>> > does the iso that you are using pass the md5?
>> > If you're using the https://wiki.ubuntu.com/Lubuntu#Download
>> > Lubuntu then I
>> > can ask as to how the iso burns to a usb with checking the md5.
>> > Regards,
>> > Phill.
>> >
>> > On Mon, Jul 5, 2010 at 2:49 AM, Bob Trevithick
>> > <bob.trevithick@xxxxxxxxx>
>> > wrote:
>> >>
>> >> Okay, I'll try to wrap my head around the whole problem and see if I
>> >> can write it up coherently.. after a bit of sleep. :)
>> >>
>> >> In the meantime, with the USB install, I have the same issues I noted
>> >> in my opening post.. and looking at the USB stick I notice that the
>> >> boot.cat file still has the wrong md5sum (if that's relevant.)  So, my
>> >> initial post still stands if any of those things are of interest at
>> >> the moment.
>> >>
>> >> Tomorrow I'll see precisely what it takes to overcome the dim display
>> >> problem.  And I have to sort out wireless and a few other things.  Let
>> >> me know, please, what would be most useful to you folks at this stage.
>> >>
>> >> Night,
>> >> Bob
>> >>
>> >> On Sun, Jul 4, 2010 at 9:33 PM, Phillip Whiteside <phillw@xxxxxxxxxx>
>> >> wrote:
>> >> > Hi Bob,
>> >> > If the CD is not burned at 4X speed, it can cause horrors. In 9.10 I
>> >> > could
>> >> > burn at that rate, in 10.04 I cannot. As a part of these 'funnies'
>> >> > that
>> >> > happen, one of the tech guys told me that he could not burn at 4X in
>> >> > 9.10
>> >> > but can do in 10.04 .....
>> >> > I have learned to 'cheat' and use CD-RW's or DVD-RW's which keeps the
>> >> > burn
>> >> > speed down.
>> >> >
>> >> > Oh, and I've used brassero etc., it seems to be a kernel issue but
>> >> > one
>> >> > that
>> >> > is really hard to nail down.
>> >> > Regards,
>> >> > Phill.
>> >> > On Mon, Jul 5, 2010 at 2:13 AM, Bob Trevithick
>> >> > <bob.trevithick@xxxxxxxxx>
>> >> > wrote:
>> >> >>
>> >> >> Sure, I can write up a version for Maverick, as soon as I understand
>> >> >> what's actually happening with the whole process.  I mean, I took
>> >> >> Andy's advice and made a bootable USB stick instead (much faster
>> >> >> than
>> >> >> the CD.. glad I learned about that) but I still don't know why the
>> >> >> CD
>> >> >> burn process is causing errors, etc.
>> >> >>
>> >> >> On Sun, Jul 4, 2010 at 8:27 PM, Phillip Whiteside
>> >> >> <phillw@xxxxxxxxxx>
>> >> >> wrote:
>> >> >> > Those instructions are solely for the 10.04 disk, if you are using
>> >> >> > a
>> >> >> > different installation method then the check sum will be
>> >> >> > different.
>> >> >> > If you pop over to the
>> >> >> > thread http://forum.phillw.net/viewtopic.php?f=18&t=94 that gives
>> >> >> > the
>> >> >> > 10.04
>> >> >> > release, I would need to update it for the release levels for the
>> >> >> > alphas, or
>> >> >> > I could give you the instructions as to how to write them :p
>> >> >> > Possibly the md5 | cdrom command may be easier for people, as it
>> >> >> > only
>> >> >> > requires the md5 sum to check against.
>> >> >> > Regards,
>> >> >> > Phill.
>> >> >> >
>> >> >> > On Mon, Jul 5, 2010 at 12:56 AM, Bob Trevithick
>> >> >> > <bob.trevithick@xxxxxxxxx>
>> >> >> > wrote:
>> >> >> >>
>> >> >> >> Ah, well, hmm.  I don't get the correct md5sum according to this
>> >> >> >> method either, Phill.
>> >> >> >>
>> >> >> >> bob@ub32:~$ dd if=/dev/cdrom bs=2048 count=266741 | md5sum
>> >> >> >> 0e9fac900c8288b243e875d9b1b65479  -
>> >> >> >> 266741+0 records in
>> >> >> >> 266741+0 records out
>> >> >> >> 546285568 bytes (546 MB) copied, 112.087 s, 4.9 MB/s
>> >> >> >>
>> >> >> >> So, I tried yet another approach and burned one with Nautilus as
>> >> >> >> per
>> >> >> >> the instructions.  For the first time, I got an actual error
>> >> >> >> during
>> >> >> >> the burn.  It didn't tell me what was wrong, but at least it
>> >> >> >> alerted
>> >> >> >> me to the burning error.
>> >> >> >>
>> >> >> >> Okay, I've tried to burn this on three different machines, using
>> >> >> >> three
>> >> >> >> different burning applications, and two different types of blank
>> >> >> >> CDs.
>> >> >> >> Maybe I'm not cut out for this kind of work. ;-)
>> >> >> >>
>> >> >> >> I'll download the 32-bit alternate CD, do a command-line install,
>> >> >> >> and
>> >> >> >> then apt-get the lubuntu-desktop package.  That should give me
>> >> >> >> the
>> >> >> >> same thing I'm trying to do here, right?
>> >> >> >>
>> >> >> >> Thanks!
>> >> >> >>
>> >> >> >> Regards,
>> >> >> >> Bob
>> >> >> >>
>> >> >> >> On Sun, Jul 4, 2010 at 7:32 PM, Phillip Whiteside
>> >> >> >> <phillw@xxxxxxxxxx>
>> >> >> >> wrote:
>> >> >> >> > dd if=/dev/cdrom bs=2048 count=266741 | md5sum
>> >> >> >>
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>> >> >> >
>> >> >> >
>> >> >
>> >> >
>> >
>> >
>
>