Re: PXE boot over NFS please

[arvidjaar]

Отправлено с iPhone

> 02 июня 2014 г., в 9:35, Beeblebrox <address@hidden> написал(а):
> 
> Hello Andrey,
> 
> The linked article, under the "Advanced Options" title (just past middle of 
> page) covers two interesting aspects of non-tftp transfer alternatives.
> One is "Faster Transfers With HTTP",
> The other is NFS.
> 
> Neither method / description has anything to do with issue of mount_nfs after 
> the kernel has been loaded.
> 

The code you quoted has.


> > Implementing NFS client in grub is a lot of work for very little gain,
> > especially if you are speaking about PXE which mandates working tftp
> > server. What exact functionality is missing right now?
> 
> The advantage of using http or nfs compared to tftp is transfer speed, as 
> summarized on the page:
> 
> "TFTP is not particularly fast when transferring the 200M or larger 
> compressed filesystems used by some bootable utilities. Newer utilities can 
> often retrieve their filesystem images by HTTP, which is much faster. One 
> target system took three minutes to load the sysrcd.dat file by TFTP. With 
> HTTP, it took only 18 seconds."
> 

Grub already supports HTTP. Did you try it?

> The article describes NFS as an alternative to HTTP, with conceivably similar 
> file transfer speed. 
> 
> Of course, the grub developers may have decided that "grub is a boot loader 
> and not a PXE oriented project"; which is of course fine. As stated, I just 
> wanted to get your view(s) on the described alternative boot method.
> 
> Regards.