Re: [PATCH 3/3] add function wait_for_route_ok

[Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On 02/16/2012 09:15 AM, Dave Young wrote:

> On 02/15/2012 04:23 PM, Harald Hoyer wrote:
> 
>> Am 15.02.2012 07:40, schrieb Dave Young:
>>> Manually setuping nic through udev is not always done when
>>> we want network access. Here add a function wait_for_route_ok to
>>> wait and make sure the network is accesible
>>>
>>> Signed-off-by: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>> ---
>>>  modules.d/99base/dracut-lib.sh |   11 +++++++++++
>>>  1 files changed, 11 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
>>> index 85d4925..c85a019 100755
>>> --- a/modules.d/99base/dracut-lib.sh
>>> +++ b/modules.d/99base/dracut-lib.sh
>>> @@ -392,6 +392,17 @@ wait_for_if_up() {
>>>      return 1
>>>  }
>>>  
>>> +wait_for_route_ok() {
>>> +    local cnt=0
>>> +    while [ $cnt -lt 200 ]; do
>>> +        li=$(ip route show)
>>> +        [[ "$li" =~ "$1" ]] && return 0
>>> +        sleep 0.1
>>> +        cnt=$(($cnt+1))
>>> +    done
>>> +    return 1
>>> +}
>>> +
>>>  # root=nfs:[<server-ip>:]<root-dir>[:<nfs-options>]
>>>  # root=nfs4:[<server-ip>:]<root-dir>[:<nfs-options>]
>>>  nfsroot_to_var() {
>>
>>
>> $ li=$(ip route show)
>> $ [[ "$li" =~ "$1" ]] && echo OK
>> dash: 6: [[: not found
>>
>> Please do not use "bash" syntax
> 
> 
> For this issue, similar with the wait_for_if_up,
> Probably when this scripts is called `ip route show` show nothing
> because there's still no route added. In this case we should not
> return 0
> 
> I will update the two patch like "[ -z "${li##*state UP*}" ]",
> and check [ -z "$li" ] as well for the nul case


Hmm, for the wait_for_if_up, pass an unexisted nic is a rare case, So
I only resent the v2 patch of wait_for_route_ok.

Harald, could you apply the 1/3 and the v2 of 3/3?

> 
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> 
> 



-- 
Thanks
Dave