Tell me more ×
Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems.. It's 100% free, no registration required.
up vote 1 down vote favorite

As I am upgrading my virtual machine from Debian 6 (Squeeze) to 7 (Wheezy), I am seeing what appears to be a changelog (screenshot below).

So, I pressed the 'q' key to quit and proceed with the upgrade process, and I notice some error-like message (screenshot below).

Changelog Screenshot:

Changelog Screenshot

Error Screenshot:

Error Screenshot

Relevant Error Text:

...

Get:368 http://ftp.us.debian.org/debian/ wheezy/main nmap amd64 6.00-0.3 [3,718 kB]
Fetched 166 MB in 23s (7,112 kB/s)
Reading changelogs... Done
apt-listchanges: Mailing root: apt-listchanges: news for li499-58
sh: /usr/sbin/sendmail: not found
Traceback (most recent call last):
    File "/usr/bin/apt-listchanges", line 237, in <module>
        main()
    File "/usr/bin/apt-listchanges", line 221, in main
        apt_listchanges.mail_changes(config.email_address, news, subject)
    File "/usr/share/apt-listchanges/apt_listchanges.py", line 99, in mail_changes
        fh.write(message.as_string())
IOError: [Errno 32] Broken pipe
Extracting templates from packages: 100%

...

Any idea what it is? Should this be a concern?

share|improve this question
you can see this error when your ssh connection failed. possible to put a bigger screenshot? Of course, upgrade from stable to testig or sid is very easy. don't worry. please give information. i can't see your screenshot. – Mohsen Pahlevanzadeh Feb 6 at 8:27
@MohsenPahlevanzadeh please open the screenshot images in a new tab/window. They are 1920x1080 px in resolution. :) – its_me Feb 6 at 8:40
Please copy-paste the relevant text instead of posting screenshots. Screenshots aren't searchable. – Gilles Feb 6 at 22:18
@Gilles Updated the question. Please see if that's what you wanted me to do. – its_me Feb 7 at 1:58
Yes, that's fine now. Thank you for being responsive even after you'd had your answer! – Gilles Feb 7 at 10:54

1 Answer

up vote 2 down vote accepted

This error occurs because that Python program is trying to pipe to /usr/sbin/sendmail, which doesn't exist on your system.

This is nothing to worry about, all that happened was that apt-listchanges failed to send a mail to root about the changes made. The changes still happened, regardless.

If you don't want this to happen in future, either remove apt-listchanges if you don't need it, or install sendmail.

share|improve this answer
Instead of sendmail, I recommend any other MTA (postfix, exim, ...). They are much nicer to configure and should all provide the /usr/sbin/sendmail binary. – jofel Feb 7 at 9:11

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.