[Planetlab-devel] Minimum disk size per MyPLC node

Thierry Parmentelat thierry.parmentelat at sophia.inria.fr
Thu Aug 26 18:43:03 EDT 2010


this one issue is something that appeared in our nightlies at some point during the summer
this is currently being discussed on this list, and is definitely unrelated

So I'm guessing you're using a recent nightly, I'd suggest for you to use a 'stable' build instead
[[Generally speaking the builds at http://build.onelab.eu/ go through automatic testing, that can help you picking the right build]]

-- thierry

On Aug 26, 2010, at 8:10 PM, Brett Lane wrote:

> Thanks for the insight. Indeed, the method I used was adding /minhw to the end of the Model field.
> 
> Hardcoding that constant and running the bootmanager seemed to do the trick, thank you. However, though I'm pretty sure this error is unrelated, I want to be complete in making sure:
> 
> Exception while running: Running chroot /tmp/mnt/sysimg  rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-planetlab failed (
> rc=1)
> 
> I guess my keys are messed up.
> 
> Thanks again,
> Brett
> On 8/26/2010 1:10 PM, Thierry Parmentelat wrote:
>> Hi Brett
>> 
>> how did you turn off hardware check ? the recommended method is to have the node model field end with /minhw
>> 
>> if that's what you did: my feeling is that there is a limit (I would say in the 16 Gb) that is - rather arbitrarily - used to decide whether a given device is a removable/usb unit or not; I know, that sounds a bit off, there should be better means to make this decision, but again I *think* this is how the code behaves. IIRC we came across somebody with a 16 Gb memory stick (yeah...) and made this change in a rush...
>> 
>> I'm afraid that turning off minimum hardware requirement check does not alter that, even if the error message does not fit this conjecture..
>> 
>> 
>> the following constants seem to be involved
>> ./source/configuration:MINIMUM_DISK_SIZE=17
>> ./source/configuration:TOTAL_MINIMUM_DISK_SIZE=50
>> 
>> If i'm right, reducing the first one might help you out
>> running 'service plc start bootmanager' should be all that's needed to ship the new constants to the node...
>> 
>> hope this helps
>> 
>> On Aug 26, 2010, at 6:42 PM, Brett Lane wrote:
>> 
>>> Hey guys,
>>> 
>>> I can't seem to find a definite answer on this one; What is the minimum requirement for disk size per MyPLC node? I disabled the hardware check when trying to boot a node via ISO, but I'm still seeing:
>>> 
>>> Step: Checking if hardware requirements met.
>>> 15:57:01(UTC) Checking for available memory.
>>> 15:57:01(UTC) Memory requirements not met, but running anyway: 380864 kb
>>> 15:57:01(UTC) Detected block devices:
>>> 15:57:01(UTC) {'/dev/sda': (8, 0, 14680064, 15.032385536, False)}
>>> 15:57:01(UTC) Device is too small to use: /dev/sda
>>> (appears to be 15.03 GB)
>>> 15:57:01(UTC) No suitable block devices found for install.
>>> 
>>> I noticed that the hardware requirements listed here: http://www.planet-lab.org/hardware are for a public PL deployment, but since this is a private PL we're looking at a lot fewer slices.
>>> 
>>> My apologies if this has been covered in an archived thread... I browsed around but I couldn't find anything that stuck out.
>>> 
>>> Thanks,
>>> Brett
>>> 
>>> 
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>> 
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