trouble updating 7.04 -> 7.10

[Sebastien Estienne]

why not just patching the python code of do-release-upgrade to
skip/modify the part of the code that is wrong?

by the way, it is easier to use "chattr -i myfile", than creating a
filesystem to mount it readonly :)

Sebastien Estienne



On Sun, Mar 1, 2009 at 00:29, sean darcy <seandarcy2 at gmail.com> wrote:
> TJ wrote:
>> On Sat, 2009-02-28 at 17:06 -0500, sean darcy wrote:
>>
>>>> It'll overwrite whatever is there.  And, of course,
>>>> us.archive.ubuntu.com does have feisty.
>>>>
>>> And, of course, us.archive.ubuntu.com does _NOT_ have feisty
>>
>>
>> Sean, how about using a read-only file system to prevent the unwanted
>> change?
>>
>> *If* it doesn't cause do-release-upgrade to throw a wobbly this might
>> work:
>>
>> sudo -i
>>
>> dd if=/dev/zero of=/tmp/sources.list.d bs=1024 count=2048
>> losetup /dev/loop1 /tmp/sources.list.d
>> mkfs.ext2 /dev/loop1
>> mkdir /mnt/apt
>> mount /dev/loop1 /mnt/apt
>> mv /etc/apt/sources.list.d/* /mnt/apt/
>>
>> # make the changes to /mnt/apt/prerequists-sources.list
>>
>> umount /mnt/apt
>> mount -o ro /dev/loop1 /etc/apt/sources.list.d
>>
>> do-release-upgrade
>>
>> # Obviously, at the end of the process, put things back as they were:
>>
>> umount /etc/apt/sources.list.d
>> mount /dev/loop1 /mnt/apt
>> mv /mnt/apt/* /etc/apt/sources.list.d/
>> umount /mnt/apt
>> losetup -d /dev/loop1
>> rm /tmp/sources.list.d
>>
>>
>>
> Man - that is brilliant. And it shoulda worked, but it didn't :(
>
> A fatal error occured
> Please report this as a bug and include the files
> /var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log in your
> report. The upgrade aborts now.
> Your original sources.list was saved in /etc/apt/sources.list.distUpgrade.
> Traceback (most recent call last):
>
>   File "/tmp/tmpjg9FjS/gutsy", line 59, in <module>
>     app.run()
>
>   File "/tmp/tmpjg9FjS/DistUpgradeControler.py", line 1346, in run
>     self.fullUpgrade()
>
>   File "/tmp/tmpjg9FjS/DistUpgradeControler.py", line 1251, in fullUpgrade
>     if not self.getRequiredBackports():
>
>   File "/tmp/tmpjg9FjS/DistUpgradeControler.py", line 1140, in
> getRequiredBackports
>     outfile =
> open(os.path.join(apt_pkg.Config.FindDir("Dir::Etc::sourceparts"),
> sourceslistd), "w")
>
> IOError: [Errno 30] Read-only file system:
> '/etc/apt/sources.list.d/prerequists-sources.list'
>
>
> But it does show where the problem is.
>
> Thanks for the suggestion.
>
> sean
>
>
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