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SUSE Linux Enterprise Server 11 SP2 and PXE Boot for UEFI Clients. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 UEFI IPv4 PXE Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2UEFI IPv6 PXE Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
SUSE® Linux Enterprise Server 11 SP2 for UEFI Clients
Best Practices White PaperEnterprise.Linux
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Enterprise Linux Best Practices White PaperSUSE Linux Enterprise Server 11 SP2 for UEFI Clients
While Service Pack 1 of version 11 officially introduced support for the installation, Service Pack 2 adds the ability for SUSE Linux Enterprise Server to act as the boot server for UEFI machines using a Preboot Execution Environment (PXE).
Intel.experts,.together.with.SUSE.engineering,.have.devel-oped.a.workflow.for.easy.activation.of.remote.boot.for.UEFI.clients.using.SUSE.Linux.Enterprise.Server.as.the.PXE.boot.server ..The.average.network.administrator.should.be.able.to.follow.the.workflow.without.difficulty ..This.workflow.covers.IPv4.as.well.as.IPv6.networks .
The.following.documentation.is.the.result.of.this.coopera-tion ..Special.thanks.go.to.Dale.Cox,.Harry.Hsiung.and.Vincent.Zimmer.at.Intel.for.their.significant.contributions.to.this.best.practices.paper . ..
UEFI IPv4 PXE Setup ProcedureThis.section.walks.through.setting.up.a.UEFI.PXE.on.a.sys-tem.running.SUSE.Linux.Enterprise.Server.to.allow.instal-lation.of.SUSE.Linux.Enterprise.Server.on.a.UEFI.client.by.booting.from.an.IPv4.network ..You.will.need.a.clean.instal-lation.of.SUSE.Linux.Enterprise.Server.on.the.machine.you.intend.to.use.as.the.PXE.boot.server,.root.access,.the.first.installation.DVD.and.a.network.adapter.installed ..If.working.
from.a.command-line.interface,.the.steps.requiring.YaST®.may.be.completed.using.the.text-mode.YaST.utility.(type.yast from.a.command.line) .
Disable Firewall1.. Start.YaST .2..In.the.Security and Users.section,.select.Firewall .3..Select.Disable Firewall Automatic Starting .4..Click.Stop Firewall Now .
SUSE® Linux Enterprise Server 11 SP2 and PXE Boot for UEFI ClientsThe Unified Extensible Firmware Interface (UEFI) is quickly replacing BIOS as the new standard for firmware interfaces. Because many network administrators use network install and because SUSE saw the importance of this new standard, SUSE invested early in supporting this new technology in SUSE Linux Enterprise Server.
3www.suse.com
5..Click.Next .6..Click.Finish .
Configure Network Adapter1.. Start.YaST .2..In.the.Network Devices.section,.select.Network Settings .3..Select.the.adapter.you.wish.to.use,.then.click.Edit .4..Select.Statically assigned IP Address ..Enter.the.following.
settings:. –. IP.Address:.192 .168 .100 .101. –. Subnet.Mask:./24
5..Click.Next .6..Click.OK .
Install ServicesIn.this.section.you.will.install.the.necessary.services.for.PXE.boot:.Dynamic.Host.Configuration.Protocol.(DHCP),.FTP.and.Trivial.FTP.(TFTP).servers ..If.your.installation.already.has.these.services.installed,.skip.this.section .
1.. Start.YaST .2..In.the.Network Services.section,.select.DHCP Server .3..You.will.be.asked.to.install.the.DHCP.server.if.it.is.not.
.already.installed ..Choose.to.install.and.accept.all.defaults .
4..Select.FTP Server in.YaST .5..You.will.be.asked.to.install.the.FTP.server.if.it.has.not.
already.been.installed ..Choose.to.install.and.accept.all..defaults .
6..Select.TFTP Server in.YaST .7..Click.Enable.and.it.will.offer.to.install.the.TFTP.Server ..
Choose.to.install.and.accept.all.defaults .
Configure the DHCP Daemon (DHCPD)In.this.section.you.will.select.the.interface.that.DHCPD.should.listen.on.and.create.a.configuration.file ..A.default.configura-tion.file.may.already.exist ..Create.a.copy.if.you.would.like.to.keep.the.default.configuration.file .
1.. If.you.have.multiple.network.adapters.on.your.system..you.may.have.to.edit./etc/sysconfig/dhcpd.and.verify..DHCPD_INTERFACE.is.set.to.the.network.adapter.you.would.like.the.DHCP.server.to.listen.on.(Usually.“eth0”) .
2..Create./etc/dhcpd .conf.with.the.following.contents:
Configure the EFI Linux Boot Loader (ELILO)In.this.section.you.will.retrieve.ELILO.from.the.installation.DVD.and.create.a.configuration.file .
1.. Place.the.first.SUSE.Linux.Enterprise.Server.install.DVD.in.your.DVD.drive .
2..Open.a.root.terminal .3..Create.a.temporary.directory,.mount.the.boot.image.and.
copy.the.contents .
#dhcpd.conf
option domain-name “pxetest.org”;
option domain-name-servers 192.168.100.101;
option routers 192.168.100.101;
ddns-update-style none;
subnet 192.168.100.0 netmask 255.255.255.0 {
range 192.168.100.120 192.168.100.199;
default-lease-time 14400;
max-lease-time 172800;
next-server 192.168.100.101;
filename “bootx64.efi”;
}
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Enterprise Linux Best Practices White PaperSUSE Linux Enterprise Server 11 SP2 for UEFI Clients
4..Create.a.file.at./tftpboot/elilo .conf.with.the.following..contents:
Copy Installation Files
Restart DHCPDBecause.we.changed.the.configuration.file,.you.will.have.to.restart.the.DHCP .
Test the Setup on a Client1.. Connect.an.EFI.machine.to.the.network.and.turn.it.on .2..Enter.the.Boot.Option.menu.by.pressing.spacebar.on.
startup .3..Select.Boot Manager.from.the.menu .4..Select.EFI Network.to.boot.using.IPv4 .5..At.this.point,.you.should.see.ELILO.appear.and.prompt.you.
to.install.SUSE.Linux.Enterprise.Server ..For.more.information..on.remote.installation.of.SUSE.Linux.Enterprise.Server..via.PXE,.see.the.SUSE.Linux.Enterprise.Server.11.SP2..Deployment.Guide,.section.14 .1 .3 .
UEFI IPv6 PXE Setup ProcedureThis.section.walks.through.setting.up.a.UEFI.PXE.on.a.sys-tem.running.SUSE.Linux.Enterprise.Server.to.allow.instal-lation.of.SUSE.Linux.Enterprise.Server.on.a.UEFI.client.by.booting.from.an.IPv6.network ..You.will.need.a.clean.instal-lation.of.SUSE.Linux.Enterprise.Server.on.the.machine.you.intend.to.use.as.the.PXE.boot.server,.root.access,.the.first.installation.DVD.and.a.network.adapter.installed ..If.working.from.a.command-line.interface,.the.steps.requiring.YaST.may.be.completed.using.the.text-mode.YaST.utility.(type yast from.a.command.line) .
Disable Firewall1.. Start.YaST .2..In.the.Security and Users.section,.select.Firewall .3..Select.Disable Firewall Automatic Starting .4..Click.Stop Firewall Now .
5..Click.Next .6..Click.Finish .
Configure Network Adapter1.. Start.YaST .2..In.the.Network Devices.section,.select.Network Settings .
# mkdir /tmp/efi-img
# mount –t vfat /media/<name of disc>/boot/x86_64/efi /tmp/efi-img
# cp /tmp/efi-img/efi/boot/* /tftpboot
prompt
timeout=50
delay=100
image=/linux
label=suse
initrd=/initrd
append=”install=ftp://192.168.100.101/sles sysrq=1”
# cd /media/<name of disc>
# mkdir /srv/ftp/sles
# cp –r * /srv/ftp/sles
# service dhpcd start
Shutting down ISC DHCPv4 4.x Server done
Starting ISC DHCPv4 4.x Server [chroot] done
5www.suse.com
3..Select.the.adapter.you.wish.to.use,.then.click.Edit .4..Select.Statically assigned IP Address ..Enter.the.following.
settings:. –. IP.Address:.192 .168 .100 .101. –. Subnet.Mask:./245..Click.Add.under.the.Additional Addresses.section.to.add..
an.alias:. –. Alias.Name:.ipv6static. –. IP.Address:.fc00:ba49:1625:fb0f::137. –. Netmask:./646..Click.OK .
7..Click.Next .8..Click.OK .
Install ServicesIn.this.section.you.will.install.the.necessary.services.for.PXE.boot:.Dynamic.Host.Configuration.Protocol.(DHCP),.FTP.and.Trivial.FTP.(TFTP).servers ..If.your.installation.already.has.these.services.installed,.skip.this.section .
1.. Start.YaST .2..In.the.Network Services.section,.select.DHCP Server .3..You.will.be.asked.to.install.the.DHCP.server.if.it.is.not.
.already.installed ..Choose.to.install.and.accept.all.defaults .4..Select.FTP Server in.YaST .5..You.will.be.asked.to.install.the.FTP.server.if.it.has.not.
already.been.installed ..Choose.to.install.and.accept.all..defaults .
6..Select.TFTP Server in.YaST .7..Click.Enable.and.it.will.offer.to.install.the.TFTP.Server ..
Choose.to.install.and.accept.all.defaults .
Configure DHCPD6In.this.section,.you.select.an.interface.that.DHCPD6.should.listen.on.and.create.a.configuration.file ..A.default.configura-tion.file.may.already.exist ..Create.a.copy.if.you.would.like.to.keep.the.default.configuration.file .
1.. Edit./etc/sysconfig/dhcpd.and.verify.DHCPD6_INTERFACE.is.set.to.the.network.adapter.you.would.like.the.DHCP.server.to.listen.on.(Usually.“eth0”) .
DHCPD6_INTERFACE=”eth0”
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Enterprise Linux Best Practices White PaperSUSE Linux Enterprise Server 11 SP2 for UEFI Clients
Configure the EFI Linux Boot Loader (ELILO)In.this.section.you.will.retrieve.ELILO.from.the.installation.DVD.and.create.a.configuration.file .
1.. Place.the.first.SUSE.Linux.Enterprise.Server.install.DVD.in.your.DVD.drive .2..Open.a.root.terminal .3..Create.a.temporary.directory,.mount.the.boot.image.and.copy.the.contents .
#dhcpd6.conf
default-lease-time 2592000;
preferred-lifetime 604800;
option dhcp-renewal-time 3600;
option dhcp-rebinding-time 7200;
allow leasequery;
option dhcp6.name-servers fc00:ba49:1625:fb0f::1;
option dhcp6.domain-search “pxetest.org”;
option dhcp6.info-refresh-time 21600;
option dhcp6.bootfile-url code 59 = string;
# The subnet where the server is attached
# (i.e., the server has an address in this subnet)
subnet6 fc00:ba49:1625:fb0f::/64 {
option dhcp6.bootfile-url “tftp://[fc00:ba49:1625:fb0f::137]/bootx64.efi”;
# Nine addresses available to clients
# (the tenth client should get NoAddrsAvail)
range6 fc00:ba49:1625:fb0f::42:10 fc00:ba49:1625:fb0f::42:99;
# Use the whole /64 prefix for temporary addresses
# (i.e., direct application of RFC 4941)
range6 fc00:ba49:1625:fb0f:: temporary;
}
2..Create./etc/dhcpd6 .conf.with.the.following.contents:
# mkdir /tmp/efi-img
# mount –t vfat /media/<name of disc>/boot/x86_64/efi /tmp/efi-img
# cp /tmp/efi-img/efi/boot/* /tftpboot
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Copy Installation Files
Start DHCPD6Start.DHCPD6.and.make.it.start.on.boot .
Test the Setup on a Client1.. Connect.an.EFI.machine.to.the.network.and.turn.it.on .2..Enter.the.Boot.Option.menu.by.pressing.spacebar.on.
startup .3..Select.Boot Manager.from.the.menu .4..Select.EFI Network 1.to.boot.using.IPv6 .5..At.this.point,.you.should.see.ELILO.appear.and.prompt.you.
to.install.SUSE.Linux.Enterprise.Server ..For.more.information..on.remote.installation.of.SUSE.Linux.Enterprise.Server..via.PXE,.see.the.SUSE.Linux.Enterprise.Server.11.SP2..Deployment.Guide.section.14 .1 .3 .
GlossaryClient—The.machine.which.will.be.getting.bootstrap.informa-tion.over.the.network.from.the.server ..Sometimes.referred.to.as.the.“target”.machine .
DHCP—Dynamic.Host.Configuration.Protocol ..One.of.the.pro-tocols.that.PXE.requires.to.operate .
ELILO—The.EFI.Linux.Boot.Loader .
FTP—File.Transfer.Protocol ..One.of.the.protocols.that.PXE..requires.to.operate .
PXE—preboot.execution.environment ..An.environment.that.allows.you.to.use.a.network.interface.to.boot.a.computer..independent.of.a.hard.disk.or.operating.system .
PXE boot server—The.machine.on.which.you.set.up.the.PXE ..This.machine.hands.out.the.bootstrap.information.to.the.cli-ent.machines .
TFTP—Trivial.File.Transfer.Protocol ..One.of.the.protocols.that.PXE.requires.to.operate .
UEFI—Unified.Extensible.Firmware.Interface ..Managed.by.the.Unified.EFI.forum,.the.UEFI.sets.specifications.for.the.interface.between.an.operating.system.and.firmware ..A.replacement.for.the.Basic.Input/Output.System.(BIOS) .
prompt
timeout=50
delay=100
image=/linux
label=suse
initrd=/initrd
append=”install=ftp://fc00:ba49:1625:fb0f::137/sles sysrq=1”
# cd /media/<name of disc>
# mkdir /srv/ftp/sles
# cp –r * /srv/ftp/sles
# service dhpcd6 start
Shutting down ISC DHCPv6 4.x Server done
Starting ISC DHCPv6 4.x Server [chroot] done
# chkconfig dhcpd6 on
4..Create./tftpboot/elilo .conf.with.the.following.contents:
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Contact your local SUSE Solutions Provider, or call SUSE at:
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SUSE
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