On 06/23/2015 01:53 AM, Andrew Fish wrote: > >> On Jun 22, 2015, at 11:29 PM, Radha Mohan <mohun...@gmail.com >> <mailto:mohun...@gmail.com>> wrote: >> >> On Mon, Jun 22, 2015 at 10:49 PM, Andrew Fish <af...@apple.com >> <mailto:af...@apple.com>> wrote: >>> >>> On Jun 22, 2015, at 10:26 PM, Radha Mohan <mohun...@gmail.com >>> <mailto:mohun...@gmail.com>> wrote: >>> >>> On Mon, Jun 22, 2015 at 10:19 PM, Ye, Ting <ting...@intel.com >>> <mailto:ting...@intel.com>> wrote: >>> >>> We use DHCP options to configure such information for PXE boot in UEFI >>> network stack. >>> >>> >>> Right, this is true when intel was the only platform..but now with >>> other architectures coming into fray..i think there should be more >>> flexibility.. >>> >>> >>> There are lots of options for network booting in UEFI. >>> PXE >>> iSCSI >>> HTTP (New in UEFI 2.5) >>> >>> You can produce an EFI_LOAD_FILE_PROTOCOL and boot how every you want. >>> The only thing missing in UEFI is a standard way to boot from a hardcoded >>> TFTP address and file. This is generally not a useful generic thing, >>> it is >>> more of a developer thing. So it is usually just implemented as a shell >>> command. Or it is the boot loader that gets returned by the PXE server. >> >> PXE is most sought after way (wonder why). In a network with mix of >> x86 and arm servers, it would be a pain to manage pxe boot. >> One needs to have special rules in dhcpd config to separate out the 2 >> archs. >> I believe the present way is the TFTP server points to a netboot or >> pxelinux efi binary (from syslinux) and then it uses NFS to do the >> installation. >> So if this binary is arch specific it will pose a problem in >> multi-arch environment. Now if I want to launch a different binary I >> have to go edit the dhcpd.conf (only if I manage the network). >> I understand its kind of developer thing. But having an option for >> developers to enter the server and file name is a more straight case >> in my opinion if you are making a good software. >> > > I don’t understand you point. Having a static IP and hard coded filename > in 100,000 clients or servers is a “better” solution? What happens if > the static IP address of the server changes? We just moved offices and > all our static IPs changed. Or if the filename needs to get changed? > > The HTTP boot solves a lot of problems with needing control of the DNS > servers, It can require some complexity on the backend, but that > complexity has known solutions (there are really popular cat videos on > the internet and such). > > As I pointed you can make a custom BDS today that supports booting from > a server with a static IP address, and TFTP filename via load file. It > is not really a good scalable solution to have static IP address, and > magic filenames configured in every client, so that is why it did not > make it into the UEFI spec. > > Thanks, > > Andrew Fish >
Using some scripts to manage the dhcpd.conf file on the server works pretty well. Especially if you put a web front-end on it so developers can specify which OS they want to boot on a particular lab machine. Brian Johnson >> >>> >>> This library can download a file from a TFTP remote using the PXE >>> Protocols. >>> The same way an OS loader can use UEFI services to load more info. >>> https://svn.code.sf.net/p/edk2/code/trunk/edk2/EmbeddedPkg/Library/EfiFileLib/EfiFileLib.c >>> >> >> >> >>> Thanks, >>> >>> Andrew Fish >>> >>> >>> >>> Best Regards, >>> Ye Ting >>> >>> -----Original Message----- >>> From: Leekha Shaveta [mailto:shav...@freescale.com] >>> Sent: Tuesday, June 23, 2015 1:15 PM >>> To: edk2-devel@lists.sourceforge.net >>> <mailto:edk2-devel@lists.sourceforge.net> >>> Cc: Olivier Martin >>> Subject: Re: [edk2] PXE with manual TFTP server and filename options >>> >>> Hi, >>> >>> Then how tftp and PXE boot flow works in UEFI network stack? >>> How to provide server ip address and file to get from remote location? >>> >>> Thanks and Regards, >>> Shaveta >>> >>> -----Original Message----- >>> From: Ye, Ting [mailto:ting...@intel.com] >>> Sent: Tuesday, June 23, 2015 8:48 AM >>> To: edk2-devel@lists.sourceforge.net >>> <mailto:edk2-devel@lists.sourceforge.net> >>> Subject: Re: [edk2] PXE with manual TFTP server and filename options >>> >>> This is not supported by UEFI network stack as I known. >>> >>> Best Regards, >>> Ye Ting >>> >>> -----Original Message----- >>> From: Radha Mohan [mailto:mohun...@gmail.com] >>> Sent: Tuesday, June 23, 2015 9:12 AM >>> To: edk2-devel@lists.sourceforge.net >>> <mailto:edk2-devel@lists.sourceforge.net> >>> Subject: [edk2] PXE with manual TFTP server and filename options >>> >>> Hi, >>> I am looking to do PXE boot with an option to manually enter a TFTP >>> server >>> ip address and filename from the prompt. >>> This option can help in having a multiple installation of distros at >>> different locations. >>> Is this something that is already available or on the cards ? >>> >>> regards, >>> Radha Mohan >>> >>> ------------------------------------------------------------------------------ >>> Monitor 25 network devices or servers for free with OpManager! >>> OpManager is web-based network management software that monitors network >>> devices and physical & virtual servers, alerts via email & sms for fault. >>> Monitor 25 devices for free with no restriction. 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Download now >> http://ad.doubleclick.net/ddm/clk/292181274;119417398;o >> _______________________________________________ >> edk2-devel mailing list >> edk2-devel@lists.sourceforge.net <mailto:edk2-devel@lists.sourceforge.net> >> https://lists.sourceforge.net/lists/listinfo/edk2-devel > > > > ------------------------------------------------------------------------------ > Monitor 25 network devices or servers for free with OpManager! > OpManager is web-based network management software that monitors > network devices and physical & virtual servers, alerts via email & sms > for fault. Monitor 25 devices for free with no restriction. Download now > http://ad.doubleclick.net/ddm/clk/292181274;119417398;o > > > > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/edk2-devel > -- My statements are my own, are not authorized by SGI, and do not necessarily represent SGI’s positions. ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
