Copyright (C) 2008-2020 Oliver Bohlen.
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This documentation comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law.
This part describes how I boot client-PCs over the network. For this I use PXE, DHCP, TFTP and NFS.
For UEFI Grub do
cd /gtc/pxe ; grub-mkstandalone -d /usr/lib/grub/x86_64-efi/ -O x86_64-efi --fonts="unicode" -o bootx64.efi boot/grub/grub.cfg
If you want to use this solution you need the following howto(s) finished:
emerge net-fs/nfs-utils emerge sys-boot/syslinux emerge net-ftp/tftp-hpa
File permissions:
Owner: root
Group: root
Permissions: -rw-r--r--
Click here for a download of the complete file: /etc/conf.d/in.tftpd
Changed on 04.04.10Path for PXE files and necessary bootoptions for tftpd.
INTFTPD_OPTS="-R 4096:32767 -s ${INTFTPD_PATH}"
After change
INTFTPD_PATH="/gtc/pxe"
#INTFTPD_OPTS="-R 4096:32767 -s ${INTFTPD_PATH} --refuse blksize --refuse tsize --refuse blksize2 --user nobody -vvv"
INTFTPD_OPTS="-p -u nobody -s ${INTFTPD_PATH} -vvv"
File permissions:
Owner: root
Group: root
Permissions: -rw-r--r--
Click here for a download of the complete file: /etc/conf.d/nfs
Changed on 10.03.10Thist starts the rpc.idmapd for UID/GID Mapping on NFSv4. It hast to be startet at the clientside too. If this Service is not started all UIDs/GIDs are mapped to ID 4294967294. The Configurationfile /etc/idmapd.conf should be the same on Client and Server
NFS_NEEDED_SERVICES=""After change
NFS_NEEDED_SERVICES="rpc.idmapd"
Allow a maximum of 20 Clients at the same time on your NFS Server
#OPTS_RPC_NFSD="8"After change
OPTS_RPC_NFSD="20"
The rpc mountd should listen on port 32767 (needed for some firewall settings).
#OPTS_RPC_MOUNTD=""After change
OPTS_RPC_MOUNTD="-p 32767"
The rpc statd should listen on port 32765 and send outgoing connections over port 32766 (needed for some firewall settings).
#OPTS_RPC_STATD=""After change
OPTS_RPC_STATD="-p 32765 -o 32766"
File permissions:
Owner: root
Group: root
Permissions: -rwx------
Click here for a download of the complete file: /etc/cron.daily/pxe.cron
Changed on 13.01.09PXE Update workaround. If syslinux is updated the new pxelinux.0 or/and menu.c32 file are stored in /usr/share/syslinux. For our use this files have to stay in /srv/thinclient/pxe. So once a day the file is copied to the correct place. A symlink (because of TFTP) or hardlink (because of different filesystems) doesn't work for me. I didn't find a better solution. If you have one let me know ;-)
#!/bin/bash mkdir -p /gtc/pxe cp -p /usr/share/syslinux/pxelinux.0 /gtc/pxe/ cp -p /usr/share/syslinux/menu.c32 /gtc/pxe/ cp -p /usr/share/syslinux/ldlinux.c32 /gtc/pxe cp -p /usr/share/syslinux/libutil.c32 /gtc/pxe
File permissions:
Owner: root
Group: root
Permissions: -rw-r--r--
Click here for a download of the complete file: /etc/dhcp/dhcpd.conf
Changed on 06.09.08This is for starting the syslinux (pxelinux) bootmanager for thinclients booting over pxe.
next-server my.lan.ip.addr;
option architecture-type code 93 = unsigned integer 16;
if option architecture-type = 00:09 {
filename "bootx64.efi";
} elsif option architecture-type = 00:07 {
filename "bootx64.efi";
} else {
filename "pxelinux.0";
}
File permissions:
Owner: root
Group: root
Permissions: -rw-r--r--
Click here for a download of the complete file: /etc/exports
Changed on 23.12.08NFS4-configuration for test and production environment of the Thinclients.
/gtc my.lan.network.ip/XXX.XXX.XXX.XXX(ro,fsid=0,no_subtree_check,async,no_root_squash,ro,insecure) /gtc/test my.lan.network.ip/XXX.XXX.XXX.XXX(no_subtree_check,async,ro,no_root_squash,insecure) /gtc/stable my.lan.network.ip/XXX.XXX.XXX.XXX(no_subtree_check,async,ro,no_root_squash,insecure,nohide)
File permissions:
Owner: root
Group: root
Permissions: -rw-r--r--
Click here for a download of the complete file: /gtc/pxe/pxelinux.cfg/default
Changed on 06.09.08Boot menu configuration for PXE boots.
default menu.c32 prompt 0 menu title GTC-PXELinux Boot Menu NOESCAPE 1 ALLOWOPTIONS 1 MENU AUTOBOOT Starting Gentoo Thinclient in # seconds label stable timeout 100 menu default menu label ^Gentoo Stable Thinclient 4.19.101 kernel /kernel-genkernel-x86_64-4.19.101-gentoo append initrd=/initramfs-genkernel-x86_64-4.19.101-gentoo root=/dev/nfs nfsroot=my.lan.ip.addr:/gtc/stable ramdisk_size=256000 acpi_sleep=s3_bios real_root=/dev/nfs raid=noautodetect consoleblank=0 clocksource=hpet ipappend 3 label test menu label ^Gentoo Test Thinclient 4.19.107 kernel /kernel-genkernel-x86_64-4.19.107-gentoo append initrd=/initramfs-genkernel-x86_64-4.19.107-gentoo root=/dev/nfs nfsroot=my.lan.ip.addr:/gtc/test ramdisk_size=256000 acpi_sleep=s3_bios real_root=/dev/nfs raid=noautodetect consoleblank=0 clocksource=hpet ipappend 3 label bootlocal menu label ^Boot from local Disk localboot 0
File permissions:
Owner: root
Group: root
Permissions: -rw-r--r--
Click here for a download of the complete file: /gtc/test/etc/thinclient/server-profile/etc/exports
Changed on 23.12.08NFS(4)-configuration for test and production environment of the Thinclients.
/opt/gtcroot *(fsid=0,crossmnt,no_subtree_check,async,ro,no_root_squash,insecure,nohide)
File permissions:
Owner: root
Group: root
Permissions: -rwx------
Click here for a download of the complete file: /usr/local/sbin/mkgtcstable.sh
Changed on 29.06.09This is a small script for creating the stable environment from the test environment.
#!/bin/bash /etc/init.d/rsyncd stop #mv /gtc/test/usr/portage/distfiles/jre* /srv/tmp rm -f /gtc/test/usr/portage/distfiles/* #mv /srv/tmp/jre* /gtc/test/usr/portage/distfiles/ if mount | grep -q "on /gtc type btrfs" then btrfs subvolume delete /gtc/stable btrfs subvolume snapshot /gtc/test /gtc/stable btrfs property set /gtc/stable ro false else rsync -aXAHv --delete /gtc/test/ /gtc/stable/ --exclude=/_gtcroot/ --exclude=/gtcdvd/ --exclude=/proc/ --exclude=/sys/ --exclude=/tmp/ --exclude=/var/tmp --exclude=/root fi mkdir -p /gtc/stable/proc mkdir -p /gtc/stable/sys mkdir -p /gtc/stable/tmp mkdir -p /gtc/stable/root chmod 0700 /gtc/stable/root chmod 1777 /gtc/stable/tmp mkdir -p /gtc/stable/var/tmp/portage chmod 1777 /gtc/stable/var/tmp mkdir -p /gtc/stable/_gtcroot for i in `find /gtc/stable/var/log/ -type f` do >$i done for i in `find /gtc/stable/usr/src -maxdepth 1 -type d | grep linux` do cd $i make clean cd - done btrfs property set /gtc/stable ro true /etc/init.d/rsyncd start /etc/init.d/nfs restart /gtc/pxe/linkkernel.sh
For starting the new service after system reboot you should add it to a runlevel with the following command(s):
rc-update add nfs rc-update add in.tftpd rc-update add rpc.idmapd default
Please send a feedback to: doc<at>gabosh.net
Howto listingHere you can find the official Gentoo Linux Forums where you can find a lot of answers.
Here a link to the official Gentoo Linux Homepage.