I try to donwload openSUSE 11.3 x86_64 iso image.
:’( The download process is success, the md5 checksum is fine but the installer media check are report failure.
This is real failure wich harm the installation or just administrative problem?
My download source is http://download.opensuse.org/distribution/11.3/iso/openSUSE-11.3-DVD-x86_64.iso, the md5 sum is adf5d2a0a03c1e3aaf102fd6a4771b87 openSUSE-11.3-DVD-x86_64.iso .
what application are you using to burn the DVD ?
Ensure you burn to a HIGH quality media (not some bargain basement brand DVD) and to a +R or -R , but NOT to an RW. Ensure you use a relatively new burner and not one that is old and could be bring errors because the burner is out of calibration. And burn at the SLOWEST speed your burner allows.
“what application are you using to burn the DVD ?”
I use the the same used before for burning 10.3, 11.1, 11.4 (without any problem).
I try’d to burn 11.3 with nero and k3b with same result.
I try’d to check 11.3 DVD in AMD quadcore and intel dualcore platfrom with same result.
As remark if you compare the iso file size of 11.2, 11.3, 11.4 the 11.3 is shorter than others (but the md5 chks of is correct)…
On 10/31/2011 08:16 PM, kzsolt2 wrote:
>
> “what application are you using to burn the DVD ?”
> I use the the same used before for burning 10.3, 11.1, 11.4 (without
> any problem).
> I try’d to burn 11.3 with nero and k3b with same result.
> I try’d to check 11.3 DVD in AMD quadcore and intel dualcore platfrom
> with same result.
> As remark if you compare the iso file size of 11.2, 11.3, 11.4 the 11.3
> is shorter than others (but the md5 chks of is correct)…
>
>
if the md5sum of the iso checked ok, and you burned a disk that didn’t
check ok then you obviously have one of two problems:
hardware:
-the burner itself: unfortunately disk burners wear out, get of out
alignment, their burning lensover heats and distorts or even get coated
with soot from the fire or smoke from tobacco (or other) smoke, and who
know how else they fail to preform flawlessly for (say) 20 years…so,
try a slower speed burn
-the disk: unfortunately all disks are not born with the same
quality…use the best quality you can afford…as a rule of thumb you
should not expect the disk which cost half the price of another to have
the same probability of a successful burn…however, price alone should
NOT be considered a direct measure of quality
hardware…
software:
–
DD
http://tinyurl.com/DD-Caveat
openSUSE®, the “German Automobiles” of operating systems
On 2011-10-31 20:16, kzsolt2 wrote:
> I try’d to burn 11.3 with nero and k3b with same result.
K3b can verify the copy after burning. What does it say?
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
“K3b can verify the copy after burning. What does it say?”
md5chks ok
The k3b say verify ok.
media check failed.
md5chks ok
The nero say verify ok.
media check failed.
If I burn 11.4 onto the same disc (+RW) with same burner and check on a same machine then no error at check media…
The iso file (md5 chks ok) 11.1 and 11.4 has size 4.6G, in case of 11.3 has size 4.4G. This is sure not a problem?
On 2011-11-01 20:06, kzsolt2 wrote:
>
> “K3b can verify the copy after burning. What does it say?”
>
> md5chks ok
> The k3b say verify ok.
Then the disk is ok.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
What did I recommend wrt RW ?
"What did I recommend wrt RW ? "
My policy is to protect environment.
I do not spend R disc useless. But after your recommendation I wrote the 11.3 image to -R before the disk check become fine at +RW.
The result with -R was:
md5chks ok
The k3b say verify ok.
media check failed.
This means do not matter I use +RW or -R the result are same.
On 2011-11-02 18:06, kzsolt2 wrote:
> md5chks ok
> The k3b say verify ok.
Then the disk is good!
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
Do you have an external USB dvd/CD drive you can borrow to try ? ie maybe the problem is the calibration between the CD/DVD burner where this was burned and the CD/DVD burner where the check is being conducted. And if the same CD/DVD reader/burner then maybe the problem is with that device.
On 2011-11-02 20:46, oldcpu wrote:
>> md5chks ok
>> The k3b say verify ok.
>> media check failed.
>>
>> This means do not matter I use +RW or -R the result are same.
>
> Do you have an external USB dvd/CD drive you can borrow to try ? ie
> maybe the problem is the calibration between the CD/DVD burner where
> this was burned and the CD/DVD burner where the check is being
> conducted. And if the same CD/DVD reader/burner then maybe the problem
> is with that device.
But what problem? K3B says it verifies OK, so it is OK, problem solved.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
I have a drive with the same basic problem burns and verifies ok works on other drive but is flaky on same drive I burned with. In my opinion you really can’t expect much from a $20-$30 device. Most computers ship with the cheapest possible components. CD/DVD drives are really cheap thse days thus cheaply made. I’ve had brand new drives fail within hours of use.
I have to have burned many many hundreds of CDs and DVDs of openSUSE and other distributions over the years. Probably more than a thousand.
My experience, for the fraction of nothing that it is worth, is that just because K3B says it is OK does not mean it is OK. I have encountered situations (a few times - once on a new PC, twice on older PCs) where K3B said it was ok, but the same symptoms described in this thread occurred because the CD/DVD drive was failing (gradually). Yes nominally K3B verification indication is good most the time, but not all the time. In the cases I quoted, I had to replace the CD/DVD drives. Thats just my humble experience. No intent to do more than offer up what I have observed over the years.
On 2011-11-02 23:26, oldcpu wrote:
> My experience, for the fraction of nothing that it is worth, is that
> just because K3B says it is OK does not mean it is OK. I have
> encountered situations (a few times - once on a new PC, twice on older
> PCs) where K3B said it was ok, but the same symptoms described in this
> thread occurred because the CD/DVD drive was failing (gradually).
What symptoms? That the DVD verification on boot fails or that YaST says it
fails? That verification has proved buggy on some cases.
No other symptoms have been described in this thread.
And it is not only k3b, the OP has also tried nero and it verifies ok.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
When I encountered this on a PC with an old DVD/CD reader/burner, it would give errors during the media-check, and if I ignored that and proceeded to install, it would give errors during the boot of the installation CD/DVD (at different location) and in one case it even got as far as the software installing when it gave errors during the software install. The hardware device was failing but was not consistent in where the failure manifested it self.
I even had another case where it would work for CDs, but not for DVDs. But the bottom line for me was this was a symptom of hardware failing. Fortunately for me in 2 of the 3 cases where I encountered this, the hardware device was under warranty (just barely, 2 weeks left) and I was able to return it and have it replaced with a functioning replacement.
IMHO the OP needs to borrow an external DVD/CD burner/reader off of a friend and give that a try. Such an external device when used to both burn and install, can be useful on occasion for helping to eliminate a desktop’s (or laptop’s) internal CD/DVD reader hardware as a potential cause of the problem. My wife and I now keep an external CD/DVD reader/burner in the apartment, not only for her netbook (which as no internal CD/DVD reader), but also as a backup for me on the rare occasion when I encounter a problem with symptoms similar to that encountered by the OP.
I also want to note to the OP that I have also learned it makes a difference (and it is more reliable) to burn at the slowest speed one’s burner allows. Burning at a fast speed can also cause similar symptoms (or worse, symptoms where the media check passes but the install still fails).
"Do you have an external USB dvd/CD drive you can borrow to try ? ie maybe the problem is the calibration between the CD/DVD burner where this was burned and the CD/DVD burner where the check is being conducted. And if the same CD/DVD reader/burner then maybe the problem is with that device. "
I try’d wrote on two different machine (wich has own dvd drive) and try to check on two different machine (wich has own dvd drive). The result of any conbination are the same.
I have no problem with 11.4 or 11.1 or 10.3 iso file just with 11.3 …
Again: The 11.3 iso image on opensuse site ~200M shorter than 11.4 or 11.2 or 11.1 iso image. This is sure not a problem?
I do not know what the size of the 11.3 iso image is supposed to be. But you say it passed the md5sum check, and if it did, then it is the correct size.
These are the actual sizes:
-r--r--r-- 1 me users 4346398720 2010-07-07 19:11 openSUSE-11.3-DVD-i586.iso
-r--r--r-- 1 me users 4493535232 2010-07-27 01:07 openSUSE-11.3-DVD-x86_64.iso
-rw-r--r-- 1 me users 4541382656 2011-03-12 08:08 openSUSE-11.4-DVD-i586.iso
-rw-r--r-- 1 me users 4614782976 2011-03-11 07:21 openSUSE-11.4-DVD-x86_64.iso
So yes, the 11.4 DVD images are larger. They are probably close to the limit of the capacity of DVDs. So, are you using good quality branded media that’s good right to the edge? Are your DVD readers capable of reading all the blocks?
For example the 11.4 x86_64 DVD has 2253312 blocks. So you could try:
dd if=/dev/sr0 bs=2k of=11.4-readback.iso
and see if it completes and if it does, do:
cmp 11.4-readback.iso openSUSE-11.4-DVD-x86_64.iso
FYI, you can find the capacities of DVDs listed here:
On 2011-11-05 03:24, kzsolt2 wrote:
> I try’d wrote on two different machine (wich has own dvd drive) and try
> to check on two different machine (wich has own dvd drive). The result
> of any conbination are the same.
> I have no problem with 11.4 or 11.1 or 10.3 iso file just with 11.3 …
If you only have problems with 11.3, and k3b said the burn was correct when
it checked, but the only problem is that the DVD boot verify says it is
incorrect, then IMO all is correct and it is a bug in the verifier.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)