[Feisty Beta] software-properties-gtk corrupts /etc/apt/source.list

[folkoy]

Binary package hint: software-properties-gtk

After clean install of Ubuntu 7.04 Beta (i386 alternate), update-manager ran and downloaded some package from the net and prompted me to insert CD-ROM to install updated. I didn't want to install packages from CD-ROM, I then clicked "cancel" and wanted to remove CD-ROM from the source.list by using "software sources" application to only specify internet as package source.

I Couldn't find how to remove CD-ROM from the selection in software-properties-gtk and didn't want to edit /etc/apt/source.list manually. I then tried to click few options here and there in software-properties-gtk application. In "Third-Party Software tab", there was no entries and still there is no entry. Then I quit software-properties-gtk application to retry update-manager.

update-manager wouldn't start and displayed the following error;
     "Could not initialize the package information
      A unresolvable problem occurred while initializing the package information.
     Please report this bug against the 'update-manager' package and include the following error message:
    'E:Malformed line 4 in source list /etc/apt/sources.list (dist parse), E:The list of sources could not be read.' "

After commenting out line 4 of /etc/apt/source.list the problem disappeared and update-manager ran fine. It seems like software-properties-gtk corrupted the source.list.

Here are the first 8 lines of /etc/apt/source.list [actual lines start after the :]
1:#
2:# deb cdrom:[Ubuntu 7.04 _Feisty Fawn_ - Beta i386 (20070322.2)]/ feisty main restricted
3:
4:deb cdrom:[Ubuntu 7.04 _Feisty Fawn_ - Beta i386 (20070322.2)]/ feisty
5:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
6:# newer versions of the distribution.
7:
8:deb http://ca.archive.ubuntu.com/ubuntu/ feisty main restricted

it seems the line 4 misses "main restricted" at the end of the line. Also it's strange that line 4 seems to be the same as lthe commented line 2 except for the missing "main restricted". This /etc/apt/source.list was never edited manually.

Mar 31 Update: I re-installed Ubuntu 7.04 beta and made a backup of the /etc/apt/source.list. I can confirm that just going in software-properties application and changing one option (i.e. clicking on "source code") and saving will make the problem show up. The 4 line of the source.list is malformed and no other application can read the source.list without error.

[Michael Vogt (mvo)]

Thanks for yur bugreport.

This should be fixed with the version 0.59.2. I would appreciate if you could give it some testing and let me know about the result.

Thanks,
 Michael

[folkoy (pluron)]

I tested using 0.59.3 the problem seems fixed. Thanks very much

I have two questions;
Q1 - I find strange that there is two exactly identical entry for CR-ROM. Line 2 and 4 are the same and this shows in the dialog box I put in attachment.;
1:#
2:# deb cdrom:[Ubuntu 7.04 _Feisty Fawn_ - Beta i386 (20070322.2)]/ feisty main restricted
3:deb-src http://archive.ubuntu.com/ubuntu/ feisty restricted main #Added by software-properties

4:deb cdrom:[Ubuntu 7.04 _Feisty Fawn_ - Beta i386 (20070322.2)]/ feisty main restricted
5:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
6:# newer versions of the distribution.

These lines comes directly from feisty alternate-i386 install. It looks to me there is a problem? Why is there two identical lines?

Q2 - Why someone an option in software-properties-gtk is neither cleared or checked but is has a '-' in the box. If you click on it, it become a check mark. If you click again it becomes clear. If you click it becomes checkmark. So what does '-' meant? As a user I'm confused and I can't replace the button in the original setting '-' before leaving the dialog. So I don't know what changes are to be expected coming from that change. Does the tool put a '-' when it's not sure because of some inconsistency in the source.list file?

thanks again