Re: Speedup cp command?

["Thomas Schmitt" <scdbackup@gmx.net>]

Hi,

the proposed xorriso -extract run fails on mounted media unless
the -osirrox parameter string contains

  ":o_excl_off"

I.e.:

  xorriso -osirrox on:sort_lba_on:auto_chmod_on:o_excl_off \
          -indev /dev/cdrom \
          -extract / /media/richard/myrepository/dvd_1

Else you will see an error message

  libburn : SORRY : Cannot open busy device '/dev/sr1' : Device or resource busy


I do not get this message because i circumvent the /dev/sr global
ioctl mutex by using /dev/sg instead. So i can operate more than one
drive at a time by ioctl(SG_IO).
(The mutex seems to be totally unnecessary. It was installed 6 years
 ago by a drive-by programmer who removed the Big Kernel Lock.
 Some of my users hacked their kernels to get rid of it.)


Have a nice day :)

Thomas