1 files changed, 135 insertions, 0 deletions
diff --git a/modules.d/95rootfs-block/mount-root.sh b/modules.d/95rootfs-block/mount-root.sh
new file mode 100755
index 0000000..c488b11
--- /dev/null
+++ b/modules.d/95rootfs-block/mount-root.sh
@@ -0,0 +1,135 @@
+#!/bin/sh
+
+type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
+type det_fs > /dev/null 2>&1 || . /lib/fs-lib.sh
+
+mount_root() {
+    local _rflags_ro
+    # sanity - determine/fix fstype
+    rootfs=$(det_fs "${root#block:}" "$fstype")
+
+    journaldev=$(getarg "root.journaldev=")
+    if [ -n "$journaldev" ]; then
+        case "$rootfs" in
+            xfs)
+                rflags="${rflags:+${rflags},}logdev=$journaldev"
+                ;;
+            reiserfs)
+                fsckoptions="-j $journaldev $fsckoptions"
+                rflags="${rflags:+${rflags},}jdev=$journaldev"
+                ;;
+            *) ;;
+        esac
+    fi
+
+    _rflags_ro="$rflags,ro"
+    _rflags_ro="${_rflags_ro##,}"
+
+    while ! mount -t "${rootfs}" -o "$_rflags_ro" "${root#block:}" "$NEWROOT"; do
+        warn "Failed to mount -t ${rootfs} -o $_rflags_ro ${root#block:} $NEWROOT"
+        fsck_ask_err
+    done
+
+    READONLY=
+    fsckoptions=
+    if [ -f "$NEWROOT"/etc/sysconfig/readonly-root ]; then
+        # shellcheck disable=SC1090
+        . "$NEWROOT"/etc/sysconfig/readonly-root
+    fi
+
+    if getargbool 0 "readonlyroot=" -y readonlyroot; then
+        READONLY=yes
+    fi
+
+    if getarg noreadonlyroot; then
+        READONLY=no
+    fi
+
+    if [ -f "$NEWROOT"/fastboot ] || getargbool 0 fastboot; then
+        fastboot=yes
+    fi
+
+    if ! getargbool 0 rd.skipfsck; then
+        if [ -f "$NEWROOT"/fsckoptions ]; then
+            read -r fsckoptions < "$NEWROOT"/fsckoptions
+        fi
+
+        if [ -f "$NEWROOT"/forcefsck ] || getargbool 0 forcefsck; then
+            fsckoptions="-f $fsckoptions"
+        elif [ -f "$NEWROOT"/.autofsck ]; then
+            # shellcheck disable=SC1090
+            [ -f "$NEWROOT"/etc/sysconfig/autofsck ] \
+                && . "$NEWROOT"/etc/sysconfig/autofsck
+            if [ "$AUTOFSCK_DEF_CHECK" = "yes" ]; then
+                AUTOFSCK_OPT="$AUTOFSCK_OPT -f"
+            fi
+            if [ -n "$AUTOFSCK_SINGLEUSER" ]; then
+                warn "*** Warning -- the system did not shut down cleanly. "
+                warn "*** Dropping you to a shell; the system will continue"
+                warn "*** when you leave the shell."
+                emergency_shell
+            fi
+            fsckoptions="$AUTOFSCK_OPT $fsckoptions"
+        fi
+    fi
+
+    rootopts=
+    if getargbool 1 rd.fstab -d -n rd_NO_FSTAB \
+        && ! getarg rootflags > /dev/null \
+        && [ -f "$NEWROOT/etc/fstab" ] \
+        && ! [ -L "$NEWROOT/etc/fstab" ]; then
+        # if $NEWROOT/etc/fstab contains special mount options for
+        # the root filesystem,
+        # remount it with the proper options
+        rootopts="defaults"
+        while read -r dev mp fs opts _ fsck || [ -n "$dev" ]; do
+            # skip comments
+            [ "${dev%%#*}" != "$dev" ] && continue
+
+            if [ "$mp" = "/" ]; then
+                # sanity - determine/fix fstype
+                rootfs=$(det_fs "${root#block:}" "$fs")
+                rootopts=$opts
+                rootfsck=$fsck
+                break
+            fi
+        done < "$NEWROOT/etc/fstab"
+    fi
+
+    # we want rootflags (rflags) to take precedence so prepend rootopts to
+    # them
+    rflags="${rootopts},${rflags}"
+    rflags="${rflags#,}"
+    rflags="${rflags%,}"
+
+    # backslashes are treated as escape character in fstab
+    # esc_root=$(echo ${root#block:} | sed 's,\\,\\\\,g')
+    # printf '%s %s %s %s 1 1 \n' "$esc_root" "$NEWROOT" "$rootfs" "$rflags" >/etc/fstab
+
+    if fsck_able "$rootfs" \
+        && [ "$rootfsck" != "0" -a -z "$fastboot" -a "$READONLY" != "yes" ] \
+        && ! strstr "${rflags}" _netdev \
+        && ! getargbool 0 rd.skipfsck; then
+        umount "$NEWROOT"
+        fsck_single "${root#block:}" "$rootfs" "$rflags" "$fsckoptions"
+    fi
+
+    echo "${root#block:} $NEWROOT $rootfs ${rflags:-defaults} 0 ${rootfsck:-0}" >> /etc/fstab
+
+    if ! ismounted "$NEWROOT"; then
+        info "Mounting ${root#block:} with -o ${rflags}"
+        mount "$NEWROOT" 2>&1 | vinfo
+    elif ! are_lists_eq , "$rflags" "$_rflags_ro" defaults; then
+        info "Remounting ${root#block:} with -o ${rflags}"
+        mount -o remount "$NEWROOT" 2>&1 | vinfo
+    fi
+
+    if ! getargbool 0 rd.skipfsck; then
+        [ -f "$NEWROOT"/forcefsck ] && rm -f -- "$NEWROOT"/forcefsck 2> /dev/null
+        [ -f "$NEWROOT"/.autofsck ] && rm -f -- "$NEWROOT"/.autofsck 2> /dev/null
+    fi
+}
+
+if [ -n "$root" -a -z "${root%%block:*}" ]; then
+    mount_root
+fi