a7a100aabc
* Added boot parameters. * Reorder and clarify build steps. Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
233 lines
8.7 KiB
Plaintext
233 lines
8.7 KiB
Plaintext
INDEX
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-----
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* Boot parameters (initramfs stage)
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* hooks/archiso
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* hooks/archiso_pxe_nbd
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* hooks/archiso_loop_mnt
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* Boot parameters (only for configs/releng)
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* etc/rc.conf
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* Image types generated by mkarchiso.
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* File format for aitab.
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* Why the /isolinux and /arch/boot/syslinux directories?
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* Building the most basic Arch Linux live media. (configs/baseline)
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* Building official Arch Linux live media. (configs/releng)
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*** Boot parameters (initramfs stage)
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** hooks/archiso
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* archisolabel= Set the filesystem label where archiso files reside.
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Default: (unset)
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* archisodevice= Set the device node where archiso medium is located.
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Default: "/dev/disk/by-label/${archisolabel}"
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* archisobasedir= Set the base directory where all files reside.
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Default: "arch"
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* aitab= Set the path for "aitab" file.
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Default: ${archisobasedir}/aitab
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* copytoram= If set to "y" or just "copytoram" without arguments,
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all SquashFS are copied to "RAM".
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Default: (unset)
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* cowspace_size= Set the size of tmpfs /cowspace. This space is used for
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Copy-On-Write files of dm-snapshot.
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(directory not visible outside initramfs)
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Size is in bytes (suffix with "k", "m" and "g") or
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in percentage of available RAM.
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Default: "75%"
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* copytoram_size= Set the size of tmpfs /cowpytoram. This space is used for
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copy of all SquashFS images used, if copytoram=y.
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(directory not visible outside initramfs)
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Size is in bytes (suffix with "k", "m" and "g") or
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in percentage of available RAM.
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Default: "75%"
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* arch= Force an architecture type (i686 | x86_64).
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Do not set it for normal operations.
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Useful for running a 64 bit kernel / 32 bit userspace.
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Default: (architecture of running kernel)
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** hooks/archiso_pxe_nbd
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* ip= This parameter is setup automatically by PXELINUX
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when option "IPAPPEND" is set to 1 or 2 in config.
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ip=<client-ip>:<boot-server-ip>:<gw-ip>:<netmask>
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Default: (set via PXE server)
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* BOOTIF= This parameter is setup automatically by PXELINUX
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when option "IPAPPEND" is set to 2 or 3 in config.
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BOOTIF=<hardware-address-of-boot-interface>
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Default: (set via PXELINUX)
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** hooks/archiso_loop_mnt
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* img_dev= Device where archiso-image.iso reside.
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Default: (unset)
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* img_loop= Full path where archiso-image.iso is located on ${img_dev}
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Default: (unset)
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*** Boot parameters (only for configs/releng)
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** /etc/rc.conf
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By default these parameters are set by default to these values
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if nothing is specified on command line.
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* locale= "en_US.UTF-8"
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* daemon_locale= "no"
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* hardwareclock= "UTC"
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* timezone= "Canada/Pacific"
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* keymap= "us"
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* consolefont= (unset)
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* consolemap= (unset)
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* usecolor= "yes"
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*** Image types generated by mkarchiso.
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* image-name.sfs SquashFS image with all files directly on it.
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* image-name.fs.sfs SquashFS with only one file inside (image-name.fs),
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which is an image of some type of filesystem
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(ext4, ext3, ext2, xfs), all files reside on it.
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* image-name.fs Like image-name.fs.sfs but without SquashFS.
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(For testing purposes only. The option copytoram
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for archiso hook does not have any effect on these images)
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*** File format for aitab.
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The aitab file holds information about the filesystems images that must be
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created by mkarchiso and mounted at initramfs stage from the archiso hook.
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It consists of some fields which define the behaviour of images.
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# <img> <mnt> <arch> <sfs_comp> <fs_type> <fs_size>
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<img> Image name without extension (.fs .fs.sfs .sfs).
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<mnt> Mount point.
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<arch> Architecture { i686 | x86_64 | any }.
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<sfs_comp> SquashFS compression type { gzip | lzo | xz }.
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A special value of "none" denotes no usage of SquashFS.
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<fs_type> Set the filesystem type of the image { ext4 | ext3 | ext2 | xfs }.
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A special value of "none" denotes no usage of a filesystem.
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In that case all files are pushed directly to SquashFS filesystem.
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<fs_size> An absolute value of file system image size in MiB.
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(example: 100, 1000, 4096, etc)
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A relative value of file system free space [in percent].
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{1%..99%} (example 50%, 10%, 7%).
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This is an estimation, and calculated in a simple way.
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Space used + 10% (estimated for metadata overhead) + desired %
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Note: Some combinations are invalid, example: sfs_comp=none and fs_type=none
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*** Why the /isolinux and /arch/boot/syslinux directories?
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The /isolinux directory holds files needed for the ISOLINUX boot loader
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module of SYSLINUX. ISOLINUX can not find config files on
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/arch/boot/syslinux, like other boot loaders modules (EXTLINUX, SYSLINUX, etc).
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When make your custom boot-pendrive, you need to copy /arch directory to it.
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/isolinux/isolinux.cfg just holds /arch/boot/syslinux/syslinux.cfg
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*** Building the most basic Arch Linux live media. (configs/baseline)
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* Install devtools if needed, mkarchroot needs it
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[host] # pacman -S devtools --needed
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* Create a base chroot to work on it.
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(prefix with linux32 if you want to build a 32 bits enviroment under 64 bits)
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[host] # mkarchroot /tmp/chroot base
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* Install archiso on chroot (needs git and make)
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[host] # pacman -S git make --needed
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[host] # git clone git://projects.archlinux.org/archiso.git
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[host] # make -C archiso/archiso DESTDIR=/tmp/chroot install
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* Enter to chroot (prefix with linux32 if needed).
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[host] # mkarchroot -r bash /tmp/chroot
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* Create a loopback device.
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(mkarchroot does not create it, use other number if not available)
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[chroot] # mknod /dev/loop0 b 7 0
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* Setup a mirror.
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[chroot] # echo 'Server = MIRROR/archlinux/$repo/os/$arch' >> /etc/pacman.d/mirrorlist
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* Install aditional packages needed for mkarchiso.
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[chroot] # pacman -S devtools squashfs-tools syslinux cdrkit
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* Build a basic iso.
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[chroot] # cp -r /usr/share/archiso/configs/baseline /tmp
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[chroot] # cd /tmp/baseline
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[chroot] # ./build.sh
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* Exit from chroot.
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[chroot] # exit
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Note: If you want to customize, just see the configs/releng directory which is
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used to build official images with much more things.
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*** Building official Arch Linux live media. (configs/releng)
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Note: These steps should be done with 64 bits support.
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* Prepare a 32 bit chroot enviroment.
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[host64] # linux32 mkarchroot /tmp/chroot32 base
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[host64] # linux32 mkarchroot -r bash /tmp/chroot32
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[chroot32] # echo 'Server = MIRROR/archlinux/$repo/os/$arch' >> /etc/pacman.d/mirrorlist
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[chroot32] # pacman -S devtools squashfs-tools syslinux cdrkit mkinitcpio-nfs-utils nbd
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[chroot32] # exit
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* Prepare a 64 bits chroot enviroment.
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[host64] # mkarchroot /tmp/chroot64 base
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[host64] # mkarchroot -r bash /tmp/chroot64
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[chroot64] # echo 'Server = MIRROR/archlinux/$repo/os/$arch' >> /etc/pacman.d/mirrorlist
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[chroot64] # pacman -S devtools squashfs-tools syslinux cdrkit mkinitcpio-nfs-utils nbd
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[chroot64] # exit
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* Install archiso on both chroots.
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[host64] # git clone git://projects.archlinux.org/archiso.git
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[host64] # make -C archiso/archiso DESTDIR=/tmp/chroot32 install
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[host64] # make -C archiso/archiso DESTDIR=/tmp/chroot64 install
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* Create a shared /tmp directory between two chroots for working.
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[host64] # mkdir /tmp/shared
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[host64] # chmod 1777 /tmp/shared
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[host64] # mount --bind /tmp/shared /tmp/chroot32/tmp
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[host64] # mount --bind /tmp/shared /tmp/chroot64/tmp
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* Enter 32 bits chroot enviroment then build core and netinstall single images.
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[chroot32] # linux32 mkarchroot -r bash /tmp/chroot32
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[chroot32] # mknod /dev/loop1032 b 7 1032 #assumed loop.max_part=0 (by default)
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[chroot32] # cp -r /usr/share/archiso/configs/releng /tmp
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[chroot32] # cd /tmp/releng
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[chroot32] # ./build.sh all_iso_single
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* Enter 64 bits chroot enviroment then build core and netinstall single images.
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[chroot64] # mkarchroot -r bash /tmp/chroot64
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[chroot64] # mknod /dev/loop1064 b 7 1064 #assumed loop.max_part=0 (by default)
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[chroot64] # cp -r /usr/share/archiso/configs/releng /tmp
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[chroot64] # cd /tmp/releng
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[chroot64] # ./build.sh all_iso_single
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* Build core and netinstall dual images from any of the chroot enviroments.
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[host64] mkarchroot -r bash /tmp/chroot64
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[chroot64] # cd /tmp/releng
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[chroot64] # ./build.sh all_iso_dual
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