[sane-devel] perfection v10

Olaf Meeuwissen paddy-hack at member.fsf.org
Mon Jan 6 12:45:58 GMT 2020

Hi Valerio,

valerio writes:

> Il 05/01/20 13:45, Olaf Meeuwissen ha scritto:
>> Hi Valerio,
>> valerio writes:
>>> expr: syntax error: missing argument after "-"
>>> tail: invalid number of lines: "/lib/udev/rules.d/60-libsane.rules"
>> I seem to remember seeing this error before but don't have time right
>> now to look for it.
>> In the mean time, can you tell me the distribution (and its version)
>> you use.  The output of
>>    cat /etc/os-release
>> would be good enough for me on most Debian-based distributions.
> PRETTY_NAME="Debian GNU/Linux bullseye/sid"

That's testing/unstable.  Not surprised things break :-/

> NAME="Debian GNU/Linux"
> ID=debian
> HOME_URL="https://www.debian.org/"
> SUPPORT_URL="https://www.debian.org/support"
> BUG_REPORT_URL="https://bugs.debian.org/"
> as you asked
> in this moment I am able to scan an image if i cut the power for about
> half an hour, but not a second one.

There was a similar

  expr: syntax error: missing argument after "-"

reported on the list in these two threads


without a final resolution by the looks of it.  This was on Ubuntu
19.04, also pretty recent and probably not unlike Debian's bullseye.

The bug is triggered in the post-inst script of the iscan-data package,
when it calls its own make-policy-file utility.  Can you provide the
log.out file created by running, as root,

  sh -x make-policy-file --force --mode udev \
	    --registry /var/lib/iscan-data/clean-files \
            --out-file policy.out > log.out 2>&1

If the policy.out file is not empty, please attach that too.

# Please use `su -l` or `sudo -i` to become root.  Just `exit` to become
# your good old self again.

Hope this helps,
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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