mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-21 22:53:37 +00:00
147 lines
4.5 KiB
Bash
Executable File
147 lines
4.5 KiB
Bash
Executable File
#!/bin/bash -
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# @configure_input@
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# Copyright (C) 2009 Red Hat Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# This is called from the Makefile to build the initramfs.
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unset CDPATH
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set -e
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cd @top_builddir@
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# Decide on names for the final output. These have to match Makefile.am.
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output=appliance/initramfs.@REPO@.@host_cpu@.img
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koutput=appliance/vmlinuz.@REPO@.@host_cpu@
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rm -f $output
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rm -f $koutput
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# Create the basic initramfs.
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exec 5<appliance/packagelist
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packages=
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while read pkg 0<&5; do
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packages="$packages -i $pkg"
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done
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exec 5<&-
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@FEBOOTSTRAP@ $packages -u @UPDATES@ @REPO@ initramfs @MIRROR@
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# /sysroot is where the guest root filesystem will be mounted.
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@FEBOOTSTRAP_RUN@ initramfs -- mkdir -p --mode=0777 /sysroot
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# Create /tmp if it is missing.
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@FEBOOTSTRAP_RUN@ initramfs -- mkdir -p --mode=0777 /tmp
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# Nuke some stuff. The kernel pulls mkinitrd and plymouth which pulls in
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# all of Python. Sheez.
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(cd initramfs && find -name '*plymouth*' -print0) |
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xargs -0 @FEBOOTSTRAP_RUN@ initramfs -- rm -rf
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(cd initramfs && find -name '*python*' -print0) |
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xargs -0 @FEBOOTSTRAP_RUN@ initramfs -- rm -rf
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# In Fedora >= 11, it pulls in all of Perl from somewhere. Nuke from orbit.
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@FEBOOTSTRAP_RUN@ initramfs -- rm -rf /usr/lib/perl5 /usr/lib64/perl5
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# Anaconda? JPEG images?
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@FEBOOTSTRAP_RUN@ initramfs -- rm -rf /usr/lib/anaconda-runtime
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# Don't need any firmware.
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@FEBOOTSTRAP_RUN@ initramfs -- rm -rf /lib/firmware
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# Don't need any keyboard maps.
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@FEBOOTSTRAP_RUN@ initramfs -- rm -rf /lib/kbd
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# Remove anything in home directory. Because this is potentially
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# liable to monstrous fuck-ups, we don't put a slash before 'home'.
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(cd initramfs && echo home/*) |
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xargs @FEBOOTSTRAP_RUN@ initramfs -- rm -rf
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# Remove /var/lib/yum stuff.
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@FEBOOTSTRAP_RUN@ initramfs -- rm -rf /var/lib/yum
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# Remove some unreadable binaries which are incompatible with
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# the supermin appliance. Since these binaries can't be read
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# from the host filesystem, they generate warnings like:
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# cpio: ./usr/bin/chfn: Cannot open: Permission denied
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# These binaries are not needed for operation of the appliance.
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@FEBOOTSTRAP_RUN@ initramfs -- rm -f \
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/usr/bin/chfn \
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/usr/bin/chsh \
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/usr/libexec/pt_chown \
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/usr/sbin/groupdel \
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/usr/sbin/groupadd \
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/usr/sbin/useradd \
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/usr/sbin/tzdata-update \
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/usr/sbin/userdel \
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/usr/sbin/usermod \
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/usr/sbin/groupmod \
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/usr/sbin/groupmems \
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/sbin/unix_update \
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$(cd initramfs && echo usr/sbin/glibc_post_upgrade.*)
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# Kernel modules take up nearly half of the image. Only include ones
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# which are on the whitelist.
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exec 5<appliance/kmod.whitelist
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whitelist=
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while read kmod 0<&5; do
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whitelist="$whitelist -a -not -name $kmod"
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done
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exec 5<&-
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(cd initramfs && \
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find lib/modules/*/kernel -name '*.ko' $whitelist -a -print0 ) |
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xargs -0 febootstrap-run initramfs -- rm
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# Pull the kernel out into the current directory. We don't want it in
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# the initramfs image.
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cp initramfs/boot/vmlinuz* $koutput
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@FEBOOTSTRAP_RUN@ initramfs -- rm -rf boot
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# Minimize the image.
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@FEBOOTSTRAP_MINIMIZE@ initramfs
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# Add some missing configuration files.
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if [ ! -f initramfs/etc/hosts ]; then
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cat > hosts.new <<'__EOF__'
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127.0.0.1 guestfs localhost.localdomain localhost
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::1 localhost6.localdomain6 localhost6
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__EOF__
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@FEBOOTSTRAP_INSTALL@ initramfs hosts.new /etc/hosts 0644 root.root
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rm hosts.new
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fi
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if [ ! -f initramfs/etc/fstab ]; then
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@FEBOOTSTRAP_RUN@ initramfs -- touch /etc/fstab
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fi
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echo nameserver 10.0.2.3 > resolv.conf.new
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@FEBOOTSTRAP_INSTALL@ initramfs resolv.conf.new /etc/resolv.conf 0644 root.root
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rm resolv.conf.new
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# Create the init script.
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@FEBOOTSTRAP_INSTALL@ initramfs appliance/init /init 0755 root.root
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# Just in case the kernel isn't looking for /init, make /sbin/init
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# be our script, not the real init.
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#@FEBOOTSTRAP_RUN@ initramfs -- ln -f /init /sbin/init
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ls -lh $koutput
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# Now directly run the update script to copy/update the daemon in the
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# initramfs.
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cd appliance && bash update.sh
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