214 lines
6.9 KiB
Bash
214 lines
6.9 KiB
Bash
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#!/bin/bash
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command -v unpack_img >/dev/null || . /lib/img-lib.sh
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# config_get SECTION KEY < FILE
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# read an .ini-style config file, find the KEY in the given SECTION, and return
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# the value provided for that key.
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# ex: product=$(config_get Main Product < /.buildstamp)
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config_get() {
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local section="$1" key="$2" cursec="" k="" v=""
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while read line; do
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case "$line" in
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\#*) continue ;;
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\[*\]*) cursec="${line#[}"; cursec="${cursec%%]*}" ;;
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*=*) k=$(echo ${line%%=*}); v=$(echo ${line#*=}) ;;
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esac
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if [ "$cursec" = "$section" ] && [ "$k" == "$key" ]; then
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echo $v
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break
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fi
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done
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}
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find_iso() {
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local f="" iso="" isodir="$1" tmpmnt=$(mkuniqdir /run/install tmpmnt)
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for f in $isodir/*.iso; do
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[ -e $f ] || continue
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mount -o loop,ro $f $tmpmnt || continue
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[ -e $tmpmnt/.discinfo ] && iso=$f
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umount $tmpmnt
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if [ "$iso" ]; then echo "$iso"; return 0; fi
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done
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return 1
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}
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find_runtime() {
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[ -f "$1" ] && [ "${1%.iso}" == "$1" ] && echo "$1" && return
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local ti_img="" dir="$1"
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[ -e $dir/.treeinfo ] && \
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ti_img=$(config_get stage2 mainimage < $dir/.treeinfo)
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for f in $ti_img images/install.img LiveOS/squashfs.img; do
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[ -e "$dir/$f" ] && echo "$dir/$f" && return
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done
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}
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repodir="/run/install/repo"
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isodir="/run/install/isodir"
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rulesfile="/etc/udev/rules.d/90-anaconda.rules"
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# try to find a usable runtime image from the repo mounted at $mnt.
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# if successful, move the mount(s) to $repodir/$isodir.
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anaconda_live_root_dir() {
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local img="" iso="" srcdir="" mnt="$1" path="$2"; shift 2
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img=$(find_runtime $mnt/$path)
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if [ -n "$img" ]; then
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info "anaconda: found $img"
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[ "$mnt" = "$repodir" ] || { mount --make-rprivate /; mount --move $mnt $isodir; }
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anaconda_auto_updates $repodir/$path/images
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else
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if [ "${path%.iso}" != "$path" ]; then
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iso=$path
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path=${path%/*.iso}
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else
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iso=$(find_iso $mnt/$path)
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fi
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[ -n "$iso" ] || { warn "no suitable images"; return 1; }
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info "anaconda: found $iso"
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mount --make-rprivate /
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mount --move $mnt $isodir
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iso=${isodir}/${iso#$mnt}
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mount -o loop,ro $iso $repodir
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img=$(find_runtime $repodir) || { warn "$iso has no suitable runtime"; }
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anaconda_auto_updates $isodir/$path/images
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fi
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# FIXME: make rd.live.ram clever enough to do this for us
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if [ "$1" = "--copy-to-ram" ]; then
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echo "Copying installer image to RAM..."
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echo "(this may take a few minutes)"
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cp $img /run/install/install.img
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img=/run/install/install.img
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umount $repodir
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[ -n "$iso" ] && umount $isodir
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fi
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[ -e "$img" ] && /sbin/dmsquash-live-root $img
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}
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# find updates.img/product.img/RHUpdates and unpack/copy them so they'll
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# end up in the location(s) that anaconda expects them
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anaconda_auto_updates() {
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local dir="$1"
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if [ -d $dir/RHupdates ]; then
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copytree $dir/RHupdates /updates
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fi
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if [ -e $dir/updates.img ]; then
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unpack_updates_img $dir/updates.img /updates
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fi
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if [ -e $dir/product.img ]; then
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unpack_updates_img $dir/product.img /updates/tmp/product
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fi
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}
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# Unpack an image into the given dir.
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unpack_updates_img() {
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local img="$1" tmpdir="/tmp/${1##*/}.$$" outdir="${2:+/updates}"
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# NOTE: unpack_img $img $outdir can clobber existing subdirs in $outdir,
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# which is why we use a tmpdir and copytree (which doesn't clobber)
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unpack_img $img $tmpdir
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copytree $tmpdir $outdir
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rm -rf $tmpdir
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}
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# These could probably be in dracut-lib or similar
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copytree() {
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local src="$1" dest="$2"
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mkdir -p "$dest"; dest=$(readlink -f -q "$dest")
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( cd "$src"; cp -a . -t "$dest" )
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}
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disk_to_dev_path() {
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case "$1" in
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CDLABEL=*|LABEL=*) echo "/dev/disk/by-label/${1#*LABEL=}" ;;
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UUID=*) echo "/dev/disk/by-uuid/${1#UUID=}" ;;
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/dev/*) echo "$1" ;;
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*) echo "/dev/$1" ;;
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esac
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}
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find_mount() {
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local dev mnt etc wanted_dev="$(readlink -e -q $1)"
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while read dev mnt etc; do
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[ "$dev" = "$wanted_dev" ] && echo $mnt && return 0
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done < /proc/mounts
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return 1
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}
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when_diskdev_appears() {
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local dev="${1#/dev/}" cmd=""; shift
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cmd="/sbin/initqueue --settled --onetime --name $1 $*"
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{
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printf 'SUBSYSTEM=="block", KERNEL=="%s", RUN+="%s"\n' "$dev" "$cmd"
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printf 'SUBSYSTEM=="block", SYMLINK=="%s", RUN+="%s"\n' "$dev" "$cmd"
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} >> $rulesfile
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}
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# dracut doesn't bring up the network unless:
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# a) $netroot is set (i.e. you have a network root device), or
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# b) /tmp/net.ifaces exists.
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# So for non-root things that need the network (like kickstart) we need to
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# make sure /tmp/net.ifaces exists.
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# For details see 40network/net-genrules.sh (and the rest of 40network).
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set_neednet() {
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# if there's no netroot, make sure /tmp/net.ifaces exists
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[ -z "$netroot" ] && >> /tmp/net.ifaces
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}
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parse_kickstart() {
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/sbin/parse-kickstart $1 > /etc/cmdline.d/80-kickstart.conf
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unset CMDLINE # re-read the commandline
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. /tmp/ks.info # save the parsed kickstart
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[ -e "$parsed_kickstart" ] && cp $parsed_kickstart /run/install/ks.cfg
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}
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# This is where we actually run the kickstart. Whee!
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# We can't just add udev rules (we'll miss devices that are already active),
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# and we can't just run the scripts manually (we'll miss devices that aren't
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# yet active - think driver disks!).
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#
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# So: we have to write out the rules and then retrigger them.
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#
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# Really what we want to do here is just start over from the "cmdline"
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# phase, but since we can't do that, we'll kind of fake it.
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#
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# XXX THIS IS KIND OF A GROSS HACK AND WE NEED A BETTER WAY TO DO IT
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run_kickstart() {
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local do_disk="" do_net=""
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# kickstart's done - time to find a real root device
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[ "$root" = "anaconda-kickstart" ] && root=""
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# don't look for the kickstart again
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kickstart=""
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# re-parse new cmdline stuff from the kickstart
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. $hookdir/cmdline/*parse-anaconda-repo.sh
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# TODO: parse for other stuff ks might set (updates, dd, etc.)
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case "$repotype" in
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http*|ftp|nfs*) do_net=1 ;;
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cdrom|hd|bd) do_disk=1 ;;
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esac
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[ "$root" = "anaconda-auto-cd" ] && do_disk=1
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# replay udev events to trigger actions
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if [ "$do_disk" ]; then
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. $hookdir/pre-udev/*repo-genrules.sh
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udevadm control --reload
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udevadm trigger --action=change --subsystem-match=block
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fi
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if [ "$do_net" ]; then
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udevadm trigger --action=online --subsystem-match=net
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fi
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# and that's it - we're back to the mainloop.
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> /tmp/ks.cfg.done # let wait_for_kickstart know that we're done.
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}
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wait_for_kickstart() {
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echo "[ -e /tmp/ks.cfg.done ]" > $hookdir/initqueue/finished/kickstart.sh
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}
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wait_for_updates() {
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echo "[ -e /tmp/liveupdates.done ]" > $hookdir/initqueue/finished/updates.sh
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}
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