From c237dce170264fed2d3262e1d168710841b77075 Mon Sep 17 00:00:00 2001 From: Gerardo Exequiel Pozzi Date: Sat, 18 Jun 2011 18:38:58 -0300 Subject: [archiso] Use dm-snapshot instead of aufs2 (A.K.A. "The Big Commit") * Use device mapper + snapshot module, instead union layer filesystem. * A block-level approach vs vfs-level. * No more unofficial (Linux) things. * More memory is needed. * Refactor mkarchiso. * Refactor hooks/archiso. * Fix install/archiso_pxe_nbd (due recent change in mkinitcpio-0.6.15 on checked_modules()/all_modules()) [Thanks Dave for the improved workaround] * New configs/releng to build official images. * Works with a Bash script instead of Makefile. (better control and easy to maintain) * Remove configs/syslinux-iso. * Remove archiso2dual script. Integrate functionality in configs/releng. * New configs/baseline to build the most basic live medium or use as template. * New README (draft). [Thanks Dieter for fixing english grammar] Signed-off-by: Gerardo Exequiel Pozzi --- archiso/Makefile | 16 +++- archiso/hooks/archiso | 207 +++++++++++++++++++++------------------- archiso/install/archiso | 23 +++-- archiso/install/archiso_pxe_nbd | 8 +- 4 files changed, 138 insertions(+), 116 deletions(-) diff --git a/archiso/Makefile b/archiso/Makefile index 93d68af..74f9ff2 100644 --- a/archiso/Makefile +++ b/archiso/Makefile @@ -1,6 +1,8 @@ all: -install: all +install: install-program install-examples install-doc + +install-program: # install to sbin since script only usable by root install -D -m 755 mkarchiso $(DESTDIR)/usr/sbin/mkarchiso # testiso can be used by anyone @@ -12,11 +14,16 @@ install: all install -D -m 644 install/archiso_pxe_nbd $(DESTDIR)/lib/initcpio/install/archiso_pxe_nbd install -D -m 644 hooks/archiso_loop_mnt $(DESTDIR)/lib/initcpio/hooks/archiso_loop_mnt install -D -m 644 install/archiso_loop_mnt $(DESTDIR)/lib/initcpio/install/archiso_loop_mnt - # install docs and examples + +install-examples: + # install examples install -d -m 755 $(DESTDIR)/usr/share/archiso/ cp -r ../configs $(DESTDIR)/usr/share/archiso/configs - install -D -m 644 ../README $(DESTDIR)/usr/share/doc/archiso/README +install-doc: + install -d -m 755 $(DESTDIR)/usr/share/archiso/ + install -D -m 644 ../README $(DESTDIR)/usr/share/doc/archiso/README + uninstall: rm -f $(DESTDIR)/usr/sbin/mkarchiso rm -f $(DESTDIR)/usr/bin/testiso @@ -25,4 +32,5 @@ uninstall: rm -f $(DESTDIR)/lib/initcpio/hooks/archiso_pxe_nbd rm -f $(DESTDIR)/lib/initcpio/install/archiso_pxe_nbd rm -rf $(DESTDIR)/usr/share/archiso/ - rm -rf $(DESTDIR)/usr/share/doc/archiso/ + +.PHONY: install install-program install-examples install-doc uninstall diff --git a/archiso/hooks/archiso b/archiso/hooks/archiso index a129b20..b81bbf7 100644 --- a/archiso/hooks/archiso +++ b/archiso/hooks/archiso @@ -1,158 +1,165 @@ -# args: source, mountpoint -_mnt_aufs() { - src="${1}" - mnt="${2}" - msg "::: Adding new aufs branch: ${src} to ${mnt}" - mkdir -p "${mnt}" - /bin/mount -t aufs -o remount,append:"${src}"=ro none "${mnt}" +# Initialize loopback device logic (we using on-demand mode) +# args: none +_init_loop_dev() { + loop_dev_cnt=99 +} + +# Call this function before _make_loop_dev() each time. +# args: none +_next_loop_dev() { + loop_dev_cnt=$((loop_dev_cnt+1)) +} + +# Setup a loopback device for image passed as arguemnt and echo the path to loopback device used. +# args: /path/to/image_file +_make_loop_dev() { + local img="${1}" + mknod /dev/loop${loop_dev_cnt} b 7 ${loop_dev_cnt} &> /dev/null + losetup /dev/loop${loop_dev_cnt} "${img}" &> /dev/null + echo /dev/loop${loop_dev_cnt} } # args: source, mountpoint -_mnt_bind() { - src="${1}" - mnt="${2}" - msg "::: Binding ${src} to ${mnt}" +_mnt_fs() { + local img="${1}" + local mnt="${2}" + local img_fullname="${img##*/}"; + local img_name="${img_fullname%%.*}" + local ro_dev ro_dev_size ro_dev_fs_type rw_dev + mkdir -p "${mnt}" - /bin/mount -o bind "${src}" "${mnt}" + + _next_loop_dev + ro_dev=$(_make_loop_dev "${img}") + ro_dev_size=$(blockdev --getsz ${ro_dev}) + ro_dev_fs_type=$(blkid -o value -s TYPE -p ${ro_dev} 2> /dev/null) + + dd of="/cowspace/${img_name}.cow" count=0 seek=${ro_dev_size} &> /dev/null + _next_loop_dev + rw_dev=$(_make_loop_dev "/cowspace/${img_name}.cow") + + echo "0 ${ro_dev_size} snapshot ${ro_dev} ${rw_dev} N 8" | dmsetup create ${img_name} + + msg ":: Mounting '/dev/mapper/${img_name}' (${ro_dev_fs_type}) to '${mnt}'" + if ! mount -t "${ro_dev_fs_type}" "/dev/mapper/${img_name}" "${mnt}" ; then + echo "ERROR: while mounting '/dev/mapper/${img_name}' to '${mnt}'" + launch_interactive_shell + fi } # args: /path/to/image_file, mountpoint -_mnt_squashfs() { - img="${1}" - mnt="${2}" - img_fullname="${img##*/}"; - img_name="${img_fullname%.*}" - tmp_mnt="/ro_branch/${img_name}" - - if [ "${copytoram}" = "y" ]; then +_mnt_sfs() { + local img="${1}" + local mnt="${2}" + local img_fullname="${img##*/}"; + + mkdir -p "${mnt}" + + if [[ "${copytoram}" == "y" ]]; then msg -n ":: Copying squashfs image to RAM..." - /bin/cp "${img}" "/copytoram/${img_fullname}" - if [ $? -ne 0 ]; then - echo "ERROR: while copy ${img} to /copytoram/${img_fullname}" + if ! cp "${img}" "/copytoram/${img_fullname}" ; then + echo "ERROR: while copy '${img}' to '/copytoram/${img_fullname}'" launch_interactive_shell fi img="/copytoram/${img_fullname}" msg "done." fi - - mkdir -p "${tmp_mnt}" - /bin/mount -r -t squashfs "${img}" "${tmp_mnt}" - if [ $? -ne 0 ]; then - echo "ERROR: while mounting ${img} to ${tmp_mnt}" + _next_loop_dev + msg ":: Mounting '${img}' (SquashFS) to '${mnt}'" + if ! mount -r -t squashfs $(_make_loop_dev "${img}") "${mnt}" &> /dev/null ; then + echo "ERROR: while mounting '${img}' to '${mnt}'" launch_interactive_shell fi - - if [ "/${mnt#/*/}" = "/" ]; then - _mnt_aufs "${tmp_mnt}" "${mnt}" - else - _mnt_bind "${tmp_mnt}" "${mnt}" - fi } run_hook() { - if [ "x${arch}" = "x" ]; then - arch="$(uname -m)" - fi - - if [ "x${rw_branch_size}" = "x" ]; then - rw_branch_size="75%" - fi - - if [ "x${copytoram_size}" = "x" ]; then - copytoram_size="75%" - fi - - if [ "x${archisobasedir}" = "x" ]; then - archisobasedir="arch" - fi - - if [ "x${isomounts}" != "x" ]; then - isomounts="/bootmnt/${isomounts}" + [[ -z "${arch}" ]] && arch="$(uname -m)" + [[ -z "${cowspace_size}" ]] && cowspace_size="75%" + [[ -z "${copytoram_size}" ]] && copytoram_size="75%" + [[ -z "${archisobasedir}" ]] && archisobasedir="arch" + [[ -z "${archisodevice}" ]] && archisodevice="/dev/disk/by-label/${archisolabel}" + if [[ -z "${aitab}" ]]; then + aitab="/bootmnt/${archisobasedir}/aitab" else - isomounts="/bootmnt/${archisobasedir}/isomounts" + aitab="/bootmnt/${aitab}" fi - - if [ "x${archisodevice}" = "x" ]; then - archisodevice="/dev/disk/by-label/${archisolabel}" - fi - # set mount handler for archiso mount_handler="archiso_mount_handler" } +# This function is called normally from init script, but it can be called +# as chain from other mount handlers. +# args: /path/to/newroot archiso_mount_handler() { - newroot="${1}" + local newroot="${1}" + local fstype fserror + + _init_loop_dev msg ":: Waiting for boot device..." - while ! poll_device ${archisodevice} 30; do + while ! poll_device "${archisodevice}" 30; do echo "ERROR: boot device didn't show up after 30 seconds..." echo " Falling back to interactive prompt" echo " You can try to fix the problem manually, log out when you are finished" launch_interactive_shell done - FSTYPE=$(blkid -o value -s TYPE -p ${archisodevice} 2> /dev/null) - if [ -n "${FSTYPE}" ]; then - if mount -r -t "${FSTYPE}" ${archisodevice} /bootmnt > /dev/null 2>&1; then - if [ -e "${isomounts}" ]; then - echo "SUCCESS: Mounted archiso volume successfully." - fserror="0" + fstype=$(blkid -o value -s TYPE -p "${archisodevice}" 2> /dev/null) + if [[ -n "${fstype}" ]]; then + if mount -r -t "${fstype}" "${archisodevice}" /bootmnt; then + if [[ -f "${aitab}" ]]; then + msg ":: Mounted archiso volume successfully." + fserror=0 else - echo "ERROR: Mounting was successful, but the ${isomounts} file does not exist." - fserror="1" + echo "ERROR: Mounting was successful, but the '${aitab}' file does not exist." + fserror=1 fi else - echo "ERROR; Failed to mount ${archisodevice} (FS is ${FSTYPE})" - fserror="1" + echo "ERROR; Failed to mount '${archisodevice}' (FS is ${fstype})" + fserror=1 fi else - echo "ERROR: ${archisodevice} found, but the filesystem type is unknown." - fserror="1" + echo "ERROR: '${archisodevice}' found, but the filesystem type is unknown." + fserror=1 fi - if [ "${fserror}" = "1" ]; then + if [[ ${fserror} -eq 1 ]]; then echo " Falling back to interactive prompt" echo " You can try to fix the problem manually, log out when you are finished" launch_interactive_shell fi - if [ "${copytoram}" = "y" ]; then + if [[ "${copytoram}" == "y" ]]; then msg -n ":: Mounting /copytoram (tmpfs) filesystem, size=${copytoram_size}..." mount -t tmpfs -o "size=${copytoram_size}",mode=0755 copytoram /copytoram msg "done." fi - msg -n ":: Mounting rw_branch (tmpfs) filesystem, size=${rw_branch_size}..." - mount -t tmpfs -o "size=${rw_branch_size}",mode=0755 rw_branch /rw_branch + msg -n ":: Mounting /cowspace (tmpfs) filesystem, size=${cowspace_size}..." + mount -t tmpfs -o "size=${cowspace_size}",mode=0755 cowspace /cowspace msg "done." - msg ":: Mounting root (aufs) filesystem" - /bin/mount -t aufs -o dirs=/rw_branch=rw union "${newroot}" - if [ $? -ne 0 ]; then - echo "ERROR: while mounting root (aufs) filesystem." - launch_interactive_shell - fi - - msg ":: Mounting images" - while read img imgarch mountpoint type; do - # check if this line is a comment (starts with #) - [ "${img#"#"}" != "${img}" ] && continue - - [ "$imgarch" != "$arch" ] && continue - - [ ! -r "/bootmnt/${archisobasedir}/${img}" ] && continue - - if [ "${type}" = "bind" ]; then - _mnt_bind "/bootmnt/${archisobasedir}/${img}" "${newroot}${mountpoint}" - elif [ "${type}" = "squashfs" ]; then - _mnt_squashfs "/bootmnt/${archisobasedir}/${img}" "${newroot}${mountpoint}" + local aitab_img aitab_mnt aitab_arch aitab_sfs_comp aitab_fs_type aitab_fs_size + while read aitab_img aitab_mnt aitab_arch aitab_sfs_comp aitab_fs_type aitab_fs_size; do + [[ "${aitab_img#\#}" != "${aitab_img}" ]] && continue + [[ "${aitab_arch}" != "any" && "${aitab_arch}" != "${arch}" ]] && continue + if [[ "${aitab_fs_type}" != "none" ]]; then + if [[ "${aitab_sfs_comp}" != "none" ]]; then + _mnt_sfs "/bootmnt/${archisobasedir}/${aitab_arch}/${aitab_img}.fs.sfs" "/sfs/${aitab_img}" + _mnt_fs "/sfs/${aitab_img}/${aitab_img}.fs" "${newroot}${aitab_mnt}" + else + _mnt_fs "/bootmnt/${archisobasedir}/${aitab_arch}/${aitab_img}.fs" "${newroot}${aitab_mnt}" + fi + else + _mnt_sfs "/bootmnt/${archisobasedir}/${aitab_arch}/${aitab_img}.sfs" "${newroot}${aitab_mnt}" fi - done < "${isomounts}" + done < "${aitab}" - if [ "${copytoram}" = "y" ]; then - /bin/umount /bootmnt + if [[ "${copytoram}" == "y" ]]; then + umount /bootmnt else - _mnt_bind /bootmnt "${newroot}/bootmnt" + mkdir "${newroot}/bootmnt" + mount --bind /bootmnt "${newroot}/bootmnt" fi } diff --git a/archiso/install/archiso b/archiso/install/archiso index 7ad9d06..3ac6246 100644 --- a/archiso/install/archiso +++ b/archiso/install/archiso @@ -1,25 +1,28 @@ install () { - MODULES="cdrom ide-cd_mod ide-core ide-generic aufs squashfs isofs loop $(all_modules '/kernel/fs' | grep -v "nls") " - MODULES="${MODULES} $(checked_modules "/usb/host" | grep -ve "_cs" -e "sl811-hcd" -e "isp116x-hcd")" - MODULES=$(echo ${MODULES}) #trim whitespace - if [ "x${MODULES}" != "x" ]; then - MODULES="${MODULES} usb_storage sd_mod sr_mod" - fi + MODULES="cdrom ide-cd_mod ide-core ide-generic loop dm-mod dm-snapshot squashfs isofs $(all_modules '/kernel/fs' | grep -v "nls")" + MODULES="${MODULES} $(checked_modules "/usb/host" | grep -ve "_cs" -e "sl811_hcd" -e "isp116x_hcd")" + MODULES="${MODULES} usb_storage sd_mod sr_mod" MODULES="${MODULES} virtio_pci virtio_blk" + MODULES=$(echo ${MODULES}) #trim whitespace BINARIES="" FILES="" - add_dir /rw_branch - add_dir /ro_branch + + add_dir /cowspace add_dir /copytoram add_dir /bootmnt - add_device /lib/udev/devices/loop0 b 7 0 - add_binary /lib/udev/cdrom_id + add_binary /sbin/blockdev + add_binary /sbin/lvm + add_binary /sbin/dmsetup add_file /lib/udev/rules.d/60-cdrom_id.rules + add_file /lib/udev/rules.d/10-dm.rules + add_file /lib/udev/rules.d/13-dm-disk.rules + add_file /lib/udev/rules.d/95-dm-notify.rules + add_file /lib/udev/rules.d/11-dm-lvm.rules SCRIPT="archiso" } diff --git a/archiso/install/archiso_pxe_nbd b/archiso/install/archiso_pxe_nbd index fbf43c6..189a7b1 100644 --- a/archiso/install/archiso_pxe_nbd +++ b/archiso/install/archiso_pxe_nbd @@ -2,8 +2,12 @@ install () { - MODULES="nbd $(checked_modules "/drivers/net/" | grep -v -e "/irda/" -e "/phy/" -e "/plip" -e "/ppp" -e "/wimax/" -e "/wireless/") " - + MODULES="nbd" + MODULES="${MODULES} $(comm -2 -3 <(checked_modules "/drivers/net/" | sort) \ + <(find $MODULEDIR/kernel/drivers/net/{irda,phy,wimax,wireless} \ + -name '*.ko*' \ + -exec bash -c 'printf "%s\n" "${@%%.ko*}" | sed "s@.*/@@;s@-@_@" | sort' _ {} +) \ + | grep -v -e 'ppp_' -e 'plip' -e 'pppoe')" BINARIES="" FILES="" SCRIPT="archiso_pxe_nbd" -- cgit v1.2.3-70-g09d2