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Re: [MirageOS-devel] Struggling a bit with the Hello World applications

On 6 May 2014, at 12:01, Dave Scott <Dave.Scott@xxxxxxxxxx> wrote:
> On 6 May 2014, at 11:35, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
>> On 5 May 2014, at 21:34, André Næss <andre.naess@xxxxxxxxx> wrote:
>>> On Mon, May 5, 2014 at 7:26 PM, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
>>>> Below is what happened:
>>>> On 14.04 I got this while running opam init:
>>>> ERROR] The compilation of base-bigarray.base failed.
>>>> [ERROR] The compilation of base-threads.base failed.
>>>> [ERROR] The compilation of base-unix.base failed.
>>>> ===== ERROR while installing base-bigarray.base =====
>>>> Internal error:
>>>> Sys_error("rm -rf /home/vagrant/.opam/system/lib/base-bigarray: Cannot 
>>>> allocate memory")
>>>> ===== ERROR while installing base-threads.base =====
>>>> Internal error:
>>>> Sys_error("rm -rf /home/vagrant/.opam/system/lib/base-threads: Cannot 
>>>> allocate memory")
>>>> ===== ERROR while installing base-unix.base =====
>>>> Internal error:
>>>> Sys_error("rm -rf /home/vagrant/.opam/system/lib/base-unix: Cannot 
>>>> allocate memory")
>>> To ask the obvious question: how much memory does this VM have?
>>> I just tried reproducing this on a fresh Ubuntu 14.04 VMWare Fusion:
>>> Ok, I'm slightly embarrassed now. I bumped the memory on the VM to 1024. 
>>> The Vagrant default is pretty low. It works fine now.
>> Thanks for confirming it works (phew).  This does touch on the important 
>> point of us distributed tested Vagrant boxes.
>> I just signed up for the Vagrant cloud that's in beta at the moment, and 
>> will look into publishing an OPAM-friendly image with all the bits'n'bobs 
>> installed.
> I’ve hit this problem a few times myself. I’m also not happy with the 
> provenance of the vagrant boxes I’m currently using: I really want something 
> which can be built reproducibly from trusted pieces. Hosting my own box is 
> also a bit of a pain since they often are 500MiB-1GiB. (I believe the vagrant 
> cloud will host a link but not the artefact itself?)
> So I started with Mort’s mirage-vagrant-vms repo and switched from veewee to 
> packer[1][2]. I found packer to be easier to install than veewee but 
> otherwise much the same. My box development cycle is now:
>  packer build template.json
>  vagrant box remove foo
>  vagrant box add new.box —name foo
> My goal is to build all my boxes from:
> 1. the definitions (the .json plus scripts) stored in .git
> 2. the distro install CD (cached, with md5 checked)
> 3. (hopefully small) repo of binary packages hosted by people I trust (e.g. 
> me). Hopefully this is <100MiB and therefore easier to host somewhere
> [1] http://packer.io/
> [2] https://github.com/djs55/mirage-vagrant-vms/tree/packer

Could you send a pull request for this to reconcile it with 

Now that we have blobs.openmirage.org, I'd like to start building these 
regularly too.

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