Re: [gentoo-dev] news item: OpenRC 0.18 changes to localmount and netmount

[Mike Gilbert <floppym@gentoo.org>]

On Thu, Oct 1, 2015 at 10:15 AM, Ian Stakenvicius <axs@gentoo.org> wrote:
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> On 01/10/15 09:41 AM, William Hubbs wrote:
>> On Tue, Sep 29, 2015 at 11:13:09AM -0400, Ian Stakenvicius
>> wrote:
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>>> On 29/09/15 11:10 AM, Ian Stakenvicius wrote:
>>>> On 29/09/15 10:52 AM, Alan McKinnon wrote:
>>>>> On 29/09/2015 16:29, Ian Stakenvicius wrote:
>>>>>> On 28/09/15 06:58 PM, William Hubbs wrote:
>>>>>>> Also, we are dropping the use of the -O switch for
>>>>>>> mount/umount -a. This is being dropped because it is
>>>>>>> util-linux specific and not compatible with busybox.
>>>>>>
>>>>>> Does this have any actual end-user impact?  AFAIK, using
>>>>>> the -O switch was 'just added' by us originally (i think
>>>>>> to reduce the explicit listing of the different fs types
>>>>>> or otherwise simplify the init script code) right?  I'm
>>>>>> just wondering if this paragraph is actually necessary or
>>>>>> not..
>>>>
>>>>> As a user, that para in the news makes me ask "how does
>>>>> this affect me?". I have to go read man pages and init
>>>>> scripts to find out.
>>>>
>>>>> Perhaps this:
>>>>
>>>>> Also, we are dropping the use of the -O switch for
>>>>> mount/umount -a, because it is util-linux specific and not
>>>>> compatible with busybox. This only affects mounts with
>>>>> "_netdev" listed under options in /etc/fstab. Such systems
>>>>> should use "noauto" and/or "nofail" as described above.
>>>>
>>>>
>>>> Exactly my thoughts.  We used -O _netdev within the
>>>> 'netmount' script to identify which fstab entries are network
>>>> mounts.  But we did it a different way prior to using -O
>>>> _netdev.  And since this isn't actually related in any way to
>>>> something end-users can set in fstab (it has to do with the
>>>> filesystem type itself) I don't see the point in worrying
>>>> end-users about it.
>>>>
>>>> I suppose it's worthwhile to note to busybox users that they
>>>> no longer have to use alternate means of netmounting, as
>>>> 'netmount' will now work on busybox...?
>>>>
>>>> Perhaps: " Also, we are dropping the use of the -O switch
>>>> for mount/umount -a, to ensure the localmount and netmount
>>>> scripts are compatible with busybox mount.  If your system
>>>> uses busybox mount please migrate any custom workarounds you
>>>> may have to the openrc localmount/netmount services. "
>>>>
>>>
>>> PS - i still think we should just cut it.
>>
>> What is it that you think we should cut?
>>
>> Thanks,
>>
>> William
>>
>
> The whole -O _netdev paragraph.  Although i'm willing to cede on
> that as I didn't know end users set _netdev in fstab themselves; i
> thought it was a property of filesystem types and was entirely
> transparent to end-users.

The _netdev option is really there to support things like iSCSI, where
you are mounting a filesystem like ext4 from a block device which
requires network connectivity.

I think some changes are needed here, because this change to
localmount is quite like to break this usage.