126 lines
3.6 KiB
Plaintext
126 lines
3.6 KiB
Plaintext
INDEX
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-----
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* Alternative boot methods (configs/releng)
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* ISO in loopback mode
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* ISO in memdisk mode
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* Network booting (PXE) [first stage]
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* DHCP + TFTP
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* DHCP + HTTP
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* HTTP/NFS/NBD [second stage]
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*** Alternative boot methods (configs/releng)
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ISO images names consist of: archlinux-<YYYY>.<MM>.<DD>-dual.iso
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Where:
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<YYYY> Year
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<MM> Month
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<DD> Day
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** ISO in loopback mode.
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Note: Described method is for using with GRUB2.
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GRUB2 is installed on target media and archlinux-<YYYY>.<MM>.<DD>-dual.iso
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is at path <TARGET-PATH> on disk <D> and partition <P>,
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where filesystem is labeled as <TARGET-FS-LABEL>.
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menuentry "Arch Linux (x86_64)" {
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set isofile="/<TARGET-PATH>/archlinux-<YYYY>.<MM>.<DD>-dual.iso"
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loopback loop (hd<D>,<P>)$isofile
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linux (loop)/arch/boot/x86_64/vmlinuz archisolabel=<FS-LABEL> img_label=<TARGET-FS-LABEL> img_loop=$isofile
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initrd (loop)/arch/boot/x86_64/archiso.img
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}
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menuentry "Arch Linux (i686)" {
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set isofile="/<TARGET-PATH>/archlinux-<YYYY>.<MM>.<DD>-dual.iso"
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loopback loop (hd<D>,<P>)$isofile
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linux (loop)/arch/boot/i686/vmlinuz archisolabel=<FS-LABEL> img_label=<TARGET-FS-LABEL> img_loop=$isofile
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initrd (loop)/arch/boot/i686/archiso.img
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}
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** ISO in memdisk mode.
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Note: Described method is for using with SYSLINUX. Anyway MEMDISK from SYSLINUX can work
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with other bootloaders.
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SYSLINUX is installed on target media and archlinux-<YYYY>.<MM>.<DD>-dual.iso
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is at path <TARGET-PATH>.
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On 32-bit systems, is needed to pass vmalloc=nnM to the kernel, where nn is the size
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of the ISO image plus 64 MiB (or 128 MiB).
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LABEL arch_x64
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LINUX memdisk
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INITRD /<TARGET-PATH>/archlinux-<YYYY>.<MM>.<DD>-dual.iso
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APPEND iso
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LABEL arch_x32
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LINUX memdisk
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INITRD /<TARGET-PATH>/archlinux-<YYYY>.<MM>.<DD>-dual.iso
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APPEND iso
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** Network booting (PXE).
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All ISOs are ready to act as PXE server, some manual steps are needed
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to setup the desired PXE boot mode.
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Alternatively it is possible to use an existing PXE server following the same logic.
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Note: Setup network first, adjust IP adresses, and respect all slashes "/".
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First stage is for loading kernel and initramfs via PXE, two methods described here:
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* DHCP + TFTP
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Note: All NIC firmwares should support this.
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# dnsmasq --port=0 \
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--enable-tftp \
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--tftp-root=/run/archiso/bootmnt \
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--dhcp-range=192.168.0.2,192.168.0.254,86400 \
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--dhcp-boot=/arch/boot/syslinux/lpxelinux.0 \
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--dhcp-option-force=209,boot/syslinux/archiso.cfg \
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--dhcp-option-force=210,/arch/
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* DHCP + HTTP
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Note: Not all NIC firmware supports HTTP and DNS (if domain name is used).
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At least this works with iPXE and gPXE.
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# dnsmasq --port=0 \
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--dhcp-range=192.168.0.2,192.168.0.254,86400 \
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--dhcp-boot=http://192.168.0.7/arch/boot/syslinux/lpxelinux.0 \
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--dhcp-option-force=209,boot/syslinux/archiso.cfg \
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--dhcp-option-force=210,http://192.168.0.7/arch/
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Once the kernel is started from PXE, SquashFS files and other misc files
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inside "arch" directory must be loaded (second stage). One of the following
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methods can be used to serve the rest of live-medium.
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* HTTP
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# darkhttpd /run/archiso/bootmnt
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* NFS
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# echo "/run/archiso/bootmnt 192.168.0.*(ro,no_subtree_check,no_root_squash)" >> /etc/exports
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# systemctl start nfs-server.service
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* NBD
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Note: Adjust ARCH_201408 as needed.
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# cat << EOF > /tmp/nbd-server.conf
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[generic]
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[archiso]
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readonly = true
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exportname = /dev/disk/by-label/ARCH_201408
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EOF
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# nbd-server -C /tmp/nbd-server.conf
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