On 6/07/2012 5:41 AM, comport3 wrote:
> Hi All,
>
> Performing a test upgrade of our Debian Squeeze server to the new Wheezy
> release has broken the mtx package.
>
> MTX relies on a /dev/sg* device (under Squeeze, the autochanger was /dev/sg4)
> - however under Wheezy there is only /dev/sch0.
>
> Trying to run mtx against it returns:
>
> mtx -f /dev/sch0
> /dev/sch0 is not an sg device, or old sg driver
>
> lsscsi -g
> [0:0:32:0] enclosu DP BACKPLANE 1.05 - -
> [0:2:0:0] disk DELL PERC 6/i 1.22 /dev/sda -
> [1:0:0:0] cd/dvd HL-DT-ST DVD-ROM GDR-T10N 1.02 /dev/sr0 -
> [3:0:17:0] tape IBM ULT3580-TD4 B710 /dev/st0 -
> [3:0:17:1] mediumx IBM 3573-TL 9t30 /dev/sch0 -
> [3:0:18:0] tape IBM ULT3580-TD4 B710 /dev/st1 -
>
>
> This is possibly a link to someone encountering the same problem:
> https://groups.google.com/forum/?fromgroups#!topic/linux.debian.bugs.dist/6thALMZOr8k
>
> Anyone got any ideas?
Yes, I raised that Debian bug/wish-list item:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=657948
I have just held my udev package at the version that isn't broken (Debian
package version 172-1).
But for a fresh install that wouldn't be an option.
The change removed the following lines from /lib/udev/rules.d/80-drivers.rules
SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST!="[module/sg]", \
RUN+="/sbin/modprobe -b sg"
You you probably put that rule into your own local file underneath the
/etc/udev/rule.d/ directory.
Failing that, manually running '/sbin/modprobe -b sg' at the right time would
probably also do the trick.
Regards,
----------
Jim Barber
DDI Health
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