454 lines
16 KiB
Bash
Executable file
454 lines
16 KiB
Bash
Executable file
#!/bin/bash
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command -v unpack_img >/dev/null || . /lib/img-lib.sh
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command -v getarg >/dev/null || . /lib/dracut-lib.sh
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command -v fetch_url >/dev/null || . /lib/url-lib.sh
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# show critical error messages more visible to user
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warn_critical() {
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local msg="$1"
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if ! [ -d /run/anaconda ]; then
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mkdir -p /run/anaconda
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fi
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echo "$msg" >> /run/anaconda/initrd_errors.txt
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warn "$msg"
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}
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# config_get SECTION KEY < FILE
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# read an .ini-style config file, find the KEY in the given SECTION, and return
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# the value provided for that key.
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# ex: product=$(config_get Main Product < /.buildstamp)
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config_get() {
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local section="$1" key="$2" cursec="" k="" v=""
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while read -r line; do
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case "$line" in
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\#*) continue ;;
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\[*\]*) cursec="${line#[}"; cursec="${cursec%%]*}" ;;
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*=*) k="${line%%=*}"; v="${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="" p="" iso="" isodir="$1" tmpmnt=""
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tmpmnt=$(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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# Valid ISOs either have stage2 in one of the supported paths
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# or have a .treeinfo that might tell use where to find the stage2 image.
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# If it does not have any of those, it is not valid and will not be used.
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for p in $tmpmnt/LiveOS/squashfs.img $tmpmnt/images/install.img $tmpmnt/.treeinfo; do
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if [ -e "$p" ]; then iso=$f; break; fi
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done
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umount "$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/$f" && return
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done
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}
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find_tty() {
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# find the real tty for /dev/console
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local tty="console"
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while [ -f "/sys/class/tty/$tty/active" ]; do
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tty=$(< "/sys/class/tty/$tty/active")
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tty=${tty##* } # last item in the list
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done
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echo "$tty"
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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="" mnt="$1" path="$2"
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img=$(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 $repodir/images
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fi
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anaconda_mount_sysroot "$img"
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}
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anaconda_net_root() {
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local repo="$1"
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info "anaconda: fetching stage2 from $repo"
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# Try to get the local path to stage2 from treeinfo.
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treeinfo=$(fetch_url "$repo/.treeinfo" 2> /tmp/treeinfo_err) && \
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stage2=$(config_get stage2 mainimage < "$treeinfo")
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# No treeinfo available.
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[ -z "$treeinfo" ] && debug_msg "$(cat /tmp/treeinfo_err)"
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# Use the default local path to stage2.
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if [ -z "$treeinfo" ] || [ -z "$stage2" ]; then
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warn "can't find installer main image path in .treeinfo"
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stage2="images/install.img"
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fi
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# Fetch the stage2.
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if runtime=$(fetch_url "$repo/$stage2") \
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|| runtime=$(fetch_url "$repo/LiveOS/squashfs.img"); then
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info "anaconda: successfully fetched stage2 from $repo"
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# NOTE: Should be the same as anaconda_auto_updates()
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updates=$(fetch_url "$repo/images/updates.img" 2> /tmp/updates_err)
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[ -z "$updates" ] && debug_msg "$(cat /tmp/updates_err)"
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[ -n "$updates" ] && unpack_updates_img "$updates" /updates
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product=$(fetch_url "$repo/images/product.img" 2> /tmp/product_err)
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[ -z "$product" ] && debug_msg "$(cat /tmp/product_err)"
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[ -n "$product" ] && unpack_updates_img "$product" /updates
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anaconda_mount_sysroot "$runtime"
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return 0
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fi
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warn_critical "anaconda: failed to fetch stage2 from $repo"
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return 1
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}
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anaconda_mount_sysroot() {
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local img="$1"
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if [ -e "$img" ]; then
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/sbin/dmsquash-live-root "$img"
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if [ -d /run/rootfsbase ]; then
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# /run/rootfsbase has been created
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# Which means that the Squash filesystem is plain
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# and does not contain the embedded EXT4 inside.
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# Also known as flattened SquashFS or directly compressed SquashFS.
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printf "mount -t overlay LiveOS_rootfs \
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-o lowerdir=/run/rootfsbase,upperdir=/run/overlayfs,workdir=/run/ovlwork \
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%s" "${NEWROOT}" > "${hookdir}/mount/01-$$-anaconda.sh"
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else
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# Otherwise, assumption is that /dev/mapper/live-rw should have been created.
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# dracut & systemd only mount things with root=live: so we have to do this ourselves
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# See https://bugzilla.redhat.com/show_bug.cgi?id=1232411
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printf 'mount /dev/mapper/live-rw %s\n' "$NEWROOT" > "$hookdir/mount/01-$$-anaconda.sh"
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fi
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fi
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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
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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 "$src" || return 1; cp -a . -t "$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/$1" ;;
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esac
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}
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find_mount() {
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local dev mnt etc wanted_dev
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wanted_dev="$(readlink -e -q "$1")"
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# shellcheck disable=SC2034 # etc eats the rest of line
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while read -r dev mnt etc; do
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[ "$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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when_any_cdrom_appears() {
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local cmd="/sbin/initqueue --settled --onetime --name autocd $*"
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printf 'SUBSYSTEM=="block", ENV{ID_CDROM_MEDIA}=="1", RUN+="%s"\n' "$cmd" \
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>> $rulesfile
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}
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when_any_hmcdrv_appears() {
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local dev="hmcdrv"
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local cmd="/sbin/initqueue --settled --onetime --name $dev $*"
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printf 'KERNEL=="%s", RUN+="%s"\n' "$dev" "$cmd" \
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>> $rulesfile
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}
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plymouth_running() {
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type plymouth >/dev/null 2>&1 && plymouth --ping 2>/dev/null
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}
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# print something to the display (and put it in the log so we know what's up)
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tell_user() {
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if plymouth_running; then
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# NOTE: if we're doing graphical splash but we don't have all the
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# font-rendering libraries, no message will appear.
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plymouth display-message --text="$*"
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echo "$*" # this goes to journal only
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else
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echo "$*" >&2 # this goes to journal+console
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fi
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}
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# print something only in if debug/inst.debug/rd.debug
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debug_msg() {
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if getargbool 0 rd.debug || getargbool 0 debug || getargbool 0 inst.debug; then
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echo "$*" >&2
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fi
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}
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dev_is_cdrom() {
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udevadm info --query=property --name="$1" | grep -q 'ID_CDROM=1'
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}
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dev_is_on_disk_with_iso9660() {
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# Get the name of the device.
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local dev_name="${1}"
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# Get the path of the device.
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local dev_path
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dev_path="$(udevadm info -q path --name "${dev_name}")"
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# Is the device a partition?
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udevadm info -q property --path "${dev_path}" | grep -q 'DEVTYPE=partition' || return 1
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# Get the path of the parent.
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local disk_path="${dev_path%/*}"
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# Is the parent a disk?
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udevadm info -q property --path "${disk_path}" | grep -q 'DEVTYPE=disk' || return 1
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# Does the parent has the iso9660 filesystem?
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udevadm info -q property --path "${disk_path}" | grep -q 'ID_FS_TYPE=iso9660' || return 1
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return 0
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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" ] && true >> /tmp/net.ifaces
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}
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parse_kickstart() {
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PYTHONHASHSEED=42 /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 "$parsed_kickstart" /run/install/ks.cfg
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}
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# print a list of net devices that dracut says are set up.
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online_netdevs() {
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local netif=""
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for netif in /tmp/net.*.did-setup; do
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netif=${netif#*.}; netif=${netif%.*}
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[ -d "/sys/class/net/$netif" ] && echo "$netif"
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done
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}
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# Filter locations that are http, https or ftp urls.
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get_urls() {
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local locations="${1}"
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local location
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# Filter locations.
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for location in $locations; do
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case "${location%%:*}" in
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http|https|ftp)
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echo "$location"
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;;
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*)
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warn "anaconda: this location will be ignored: $location"
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;;
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esac
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done
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}
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# This is where we actually run the kickstart. Whee!
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# We can't just add udev rules (we'll miss devices that are already active),
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# and we can't just run the scripts manually (we'll miss devices that aren't
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# yet active - think driver disks!).
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#
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# So: we have to write out the rules and then retrigger them.
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#
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# Really what we want to do here is just start over from the "cmdline"
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# phase, but since we can't do that, we'll kind of fake it.
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#
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# XXX THIS IS KIND OF A GROSS HACK AND WE NEED A BETTER WAY TO DO IT
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run_kickstart() {
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local do_disk="" do_net=""
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# kickstart's done - time to find a real root device
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[ "$root" = "anaconda-kickstart" ] && root=""
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# don't look for the kickstart again
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# shellcheck disable=SC2034 # used by other anaconda-related dracut stuff
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kickstart=""
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# re-parse new cmdline stuff from the kickstart
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. "$hookdir"/cmdline/*parse-anaconda-repo.sh
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. "$hookdir"/cmdline/*parse-livenet.sh
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. "$hookdir"/cmdline/*parse-anaconda-dd.sh
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# Kickstart network configuration (which might even be empty) should be
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# applied to get installer image or driver disks only if the tasks haven't
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# already been performed using network configuration by boot options. This
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# is ensured by the .done files checking.
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case "$root" in
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anaconda-net:*) [ ! -f /tmp/anaconda_netroot.done ] && do_net=1 ;;
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anaconda-hmc) do_disk=1 ;;
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anaconda-disk:*) do_disk=1 ;;
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anaconda-auto-cd) do_disk=1 ;;
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esac
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[ -f /tmp/dd_net ] && [ ! -f /tmp/dd_net.done ] && do_net=1
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[ -f /tmp/dd_disk ] && do_disk=1
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# disk: replay udev events to trigger actions
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if [ "$do_disk" ]; then
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# set up new rules
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. "$hookdir"/pre-trigger/*repo-genrules.sh
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. "$hookdir"/pre-trigger/*driver-updates-genrules.sh
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udevadm control --reload
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# trigger the rules for all the block devices we see
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udevadm trigger --action=change --subsystem-match=block
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fi
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# net: re-run online hooks
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if [ "$do_net" ]; then
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# If NetworkManager is used in initramfs
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if ls -U "$hookdir"/cmdline/*-nm-config.sh >/dev/null 2>&1 ; then
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# First try to re-run online hooks on any online device.
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# We don't want to reconfigure the network by applying kickstart config
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# so use existing network connections if there are any.
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# Based on nm-run.sh
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for _i in /sys/class/net/*/
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do
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state=/run/NetworkManager/devices/$(cat "$_i/ifindex")
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grep -q connection-uuid= "$state" 2>/dev/null || continue
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nm_connected_device_found="yes"
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ifname=$(basename "$_i")
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source_hook initqueue/online "$ifname"
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done
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if [ "${nm_connected_device_found}" != "yes" ]; then
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# Configure NM based on the cmdline now updated with kickstart.
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# The configuration will be applied by the next run of NM
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# via settled hook in *-nm-run.sh script which also calls the
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# online hooks.
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. "$hookdir"/cmdline/*-nm-config.sh
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if [ -n "$DRACUT_SYSTEMD" ]; then
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systemctl start nm-initrd
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fi
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fi
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else
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# make dracut create the net udev rules (based on the new cmdline)
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. "$hookdir"/pre-udev/*-net-genrules.sh
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udevadm control --reload
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udevadm trigger --action=add --subsystem-match=net
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for netif in $(online_netdevs); do
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source_hook initqueue/online "$netif"
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done
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fi
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fi
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# and that's it - we're back to the mainloop.
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true > /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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wait_for_dd() {
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echo "[ -e /tmp/dd.done ]" > "$hookdir/initqueue/finished/dd.sh"
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}
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wait_for_disks() {
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# Allow up to 'inst.wait_for_disks' seconds for disks to be enumerated and
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# related udev rules to execute (defaults to 5 seconds, 0 disables the
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# feature). This prevents dracut-initqueue from finishing early.
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# Since a 0.5 second delay is used between two runs of dracut-initqueue, we
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# force the latter to retry up to twice the value configured, e.g:
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# 'inst.wait_for_disks=15' --> force looping 30 times at least
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# 'inst.wait_for_disks=0' --> force looping 0 times (so no wait time)
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finished_hook="$hookdir/initqueue/finished/wait_for_disks.sh"
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[ -e "$finished_hook" ] && return
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DISKS_WAIT_DELAY=$(getargnum 5 0 10000 inst.wait_for_disks)
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DISKS_WAIT_RETRIES=$((DISKS_WAIT_DELAY * 2))
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echo "[ \"\$main_loop\" -ge \"$DISKS_WAIT_RETRIES\" ]" > "$finished_hook"
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}
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