Re: Possible problem mounting Video DVD

Dale R. Worley
2014-01-28T21:32:24Z

> I have been having problems with Video DVDs created on my Panasonic DVD
> recorder which records terrestrial TV.

> Jan 27 12:31:14 F20Main kernel: [16280.275124] sr 0:0:0:0: [sr0] Invalid
> command failure
> Jan 27 12:31:14 F20Main kernel: [16280.275137] sr 0:0:0:0: [sr0]
> Jan 27 12:31:14 F20Main kernel: [16280.275143] Result: hostbyte=DID_OK
> driverbyte=DRIVER_SENSE
> Jan 27 12:31:14 F20Main kernel: [16280.275149] sr 0:0:0:0: [sr0]
> Jan 27 12:31:14 F20Main kernel: [16280.275153] Sense Key : Illegal
> Request [current]
> Jan 27 12:31:14 F20Main kernel: [16280.275160] sr 0:0:0:0: [sr0]
> Jan 27 12:31:14 F20Main kernel: [16280.275166] Add. Sense: Invalid field
> in cdb
> Jan 27 12:31:14 F20Main kernel: [16280.275171] sr 0:0:0:0: [sr0] CDB:
> Jan 27 12:31:14 F20Main kernel: [16280.275174] Write(10): 2a 00 00 00 00
> 40 00 00 01 00
> Jan 27 12:31:14 F20Main kernel: [16280.275190] end_request: critical
> target error, dev sr0, sector 256
> Jan 27 12:31:14 F20Main kernel: [16280.275199] Buffer I/O error on
> device sr0, logical block 64
> Jan 27 12:31:14 F20Main kernel: [16280.275203] lost page write due to
> I/O error on sr0
> Jan 27 12:31:14 F20Main kernel: [16280.491663] UDF-fs: INFO Mounting
> volume 'DVD_VIDEO_RECORDER', timestamp 2014/01/26 14:04 (1000)
> Jan 27 12:31:14 F20Main udisksd[1084]: Mounted /dev/sr0 at
> /run/media/stuart/DVD_VIDEO_RECORDER on behalf of uid 1000
>
> Is this a potential bug in the mount command?

I'm no expert. It looks like the kernel mount() is actually getting
done correctly, given the message "Mounted /dev/sr0 ...". Given that,
it's be surprising if the mount *command* would fail, since the
command is by default deaf to the exactly format of the volume. What
output do you get from the command?

Dale