Re: [PATCH 3/3] add function wait_for_route_ok

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

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

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-- 
Thanks
Dave