ubuntu-phone team mailing list archive

[Gustavo Niemeyer <gustavo@xxxxxxxxxxxx>]

Some of the overlay filesystems do support writing tomb markers to
handle deletions as well. I'm sure you know that, though, so I'm
mostly wondering why that was not a good option?  Performance?

On Fri, Sep 13, 2013 at 3:15 PM, Oliver Grawert <ogra@xxxxxxxxxx> wrote:
> On Fri, 13 Sep 2013 17:42:36 +0200
> Michael Zanetti <michael.zanetti@xxxxxxxxxxxxx> wrote:
>
>> On Friday 13 September 2013 17:33:47 Oliver Grawert wrote:
>> > it is currently not possible to switch on ssh in a persistent way, but with
>> > the next image in the daily-proposed channel (build number >46) this should
>> > be fixed. due to the nature of the readonly image you can not just remove
>> > the .override file but instead will have to empty it to make it not take
>> > effect:
>> >
>> > echo | sudo tee /etc/init/ssh.override
>>
>> At the risk of blaming myself... How come I cannot delete, but still modify a
>> file on a read only file system? I mean... modifying a file is still write
>> operation, no?
>
> writability of files on the ro image is achieved by bind mounting the files from the ro side to a writable area of the filesystem ... if you delete it, it will just come back on next boot since the bind mount is newly created ...
>
> which is kind of defeating the purpose :)
>
> ciao
>         oli
>
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gustavo @ http://niemeyer.net