Re: Bad LIF Image Error on Install for C8000 and J6750
On Sep 3, 2014, at 6:24 AM, Thomas Schmitt <scdbackup@gmx.net> wrote:
> Hi,
>
>> It's old, but most likely not worn-off.
>
> I mostly meant the drive of Jawahar Panchal, of which we
> do not yet know the model name.
>
Hello again - thanks to everyone for their time and help! This has been great reading/learning for myself. I will try and get the model name of the drive this weekend, and will also try with a DVD-RW disc to see if that works.
> Ok. I retract "worn-off" and replace by "age-wise challenged". :))
>
>
>> root@lsXX:/mnt# xorriso -outdev /dev/sr0 -list_profiles
>> ...
>> Media current: is not recognizable
>> Media status : is not recognizable
>> ...
>> Media summary: 1 session, 57583 data blocks, 112m data, 0 free
>
> Not being a MMC drive, it might be not suitable for libburn.
>
>
>> So, maybe firmware just checks the "Media status" as above and then fails
>> because it's not "recognizable" ?
>
> "not recognizable" is a misperception of libburn and xorriso,
> probably because SCSI command GET CONFIGURATION is not supported
> by the drive.
> Other commands like READ DISC INFORMATION, READ TRACK INFORMATION,
> or READ TOC/PMA/ATIP seem to work.
>
> One would have to run
>
> xorriso -scsi_log on -outdev /dev/sr0 -list_profiles \
> 2>&1 | tee -i /tmp/xorriso.log
>
> in order to learn which particular commands do not work.
> I am quite astonished to see a DVD drive with such
> handicaps. So technically it would be of interest for me
> to get such a /tmp/xorriso.log in private.
> (It will hardly help this thread, though.)
>
>
>> root@lsXX:/mnt# dd if=/dev/cdrom bs=2 count=1 | od -c
>> ...
>> 0000000 200 \0
>
> Grmpf. At least the problem is not easily reproducible.
> Maybe the firmware complains about bad magic for more
> mismatches than only the first LIF bytes.
>
> The fact that your DVD+RW booted, shows that the firmware
> does not demand a real LIF System Block as of
> http://www.hp9845.net/9845/projects/hpdir/.
> We store the address of the 32-bit kernel file where LIF
> has "Directory Start".
>
> A checkread of full image size from CD-RW might show that
> some other blocks (of 2048 bytes) are bad.
> Or maybe the DVD drive needs some heating by reading DVD+RW
> before it is willing to read CD-RW.
>
>
> Have a nice day :)
>
> Thomas
>
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