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100 lines
3.3 KiB
100 lines
3.3 KiB
#!/bin/sh |
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- |
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# ex: ts=8 sw=4 sts=4 et filetype=sh |
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# |
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# Preferred format: |
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# root=iscsi:[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname> |
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# [root=*] netroot=iscsi:[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname> |
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# |
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# Legacy formats: |
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# [net]root=[iscsi] iscsiroot=[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname> |
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# [net]root=[iscsi] iscsi_firmware |
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# |
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# root= takes precedence over netroot= if root=iscsi[...] |
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# |
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# Don't continue if root is ok |
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[ -n "$rootok" ] && return |
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# This script is sourced, so root should be set. But let's be paranoid |
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[ -z "$root" ] && root=$(getarg root=) |
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[ -z "$netroot" ] && netroot=$(getarg netroot=) |
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[ -z "$iscsiroot" ] && iscsiroot=$(getarg iscsiroot=) |
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[ -z "$iscsi_firmware" ] && getargbool 0 rd.iscsi.firmware -y iscsi_firmware && iscsi_firmware="1" |
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[ -n "$iscsiroot" ] && [ -n "$iscsi_firmware" ] && die "Mixing iscsiroot and iscsi_firmware is dangerous" |
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type write_fs_tab >/dev/null 2>&1 || . /lib/fs-lib.sh |
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# Root takes precedence over netroot |
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if [ "${root%%:*}" = "iscsi" ] ; then |
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if [ -n "$netroot" ] ; then |
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echo "Warning: root takes precedence over netroot. Ignoring netroot" |
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fi |
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netroot=$root |
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# if root is not specified try to mount the whole iSCSI LUN |
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printf 'ENV{DEVTYPE}!="partition", SYMLINK=="disk/by-path/*-iscsi-*-*", SYMLINK+="root"\n' >> /etc/udev/rules.d/99-iscsi-root.rules |
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root=/dev/root |
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write_fs_tab /dev/root |
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fi |
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# If it's not empty or iscsi we don't continue |
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[ -z "$netroot" ] || [ "${netroot%%:*}" = "iscsi" ] || return |
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if [ -n "$iscsiroot" ] ; then |
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[ -z "$netroot" ] && netroot=$root |
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# @deprecated |
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echo "Warning: Argument iscsiroot is deprecated and might be removed in a future" |
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echo "release. See 'man dracut.kernel' for more information." |
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# Accept iscsiroot argument? |
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[ -z "$netroot" ] || [ "$netroot" = "iscsi" ] || \ |
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die "Argument iscsiroot only accepted for empty root= or [net]root=iscsi" |
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# Override root with iscsiroot content? |
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[ -z "$netroot" ] || [ "$netroot" = "iscsi" ] && netroot=iscsi:$iscsiroot |
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fi |
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# iscsi_firmware does not need argument checking |
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if [ -n "$iscsi_firmware" ] ; then |
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netroot=${netroot:-iscsi} |
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modprobe -q iscsi_boot_sysfs 2>/dev/null |
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modprobe -q iscsi_ibft |
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echo "[ -f '/tmp/iscsistarted-firmware' ]" > $hookdir/initqueue/finished/iscsi_firmware_started.sh |
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fi |
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# If it's not iscsi we don't continue |
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[ "${netroot%%:*}" = "iscsi" ] || return |
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modprobe -q qla4xxx |
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modprobe -q cxgb3i |
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modprobe -q cxgb4i |
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modprobe -q bnx2i |
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modprobe -q be2iscsi |
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if [ -z "$iscsi_firmware" ] ; then |
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type parse_iscsi_root >/dev/null 2>&1 || . /lib/net-lib.sh |
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parse_iscsi_root "$netroot" || return |
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fi |
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# ISCSI actually supported? |
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if ! [ -e /sys/module/iscsi_tcp ]; then |
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modprobe -q iscsi_tcp || die "iscsiroot requested but kernel/initrd does not support iscsi" |
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fi |
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if [ -n "$netroot" ] && [ "$root" != "/dev/root" ] && [ "$root" != "dhcp" ]; then |
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if ! getargbool 1 rd.neednet >/dev/null || ! getarg "ip="; then |
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initqueue --onetime --settled /sbin/iscsiroot dummy "$netroot" "$NEWROOT" |
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fi |
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fi |
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netroot_enc=$(str_replace "$netroot" '/' '\2f') |
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echo "[ -f '/tmp/iscsistarted-$netroot_enc' ]" > $hookdir/initqueue/finished/iscsi_started.sh |
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# Done, all good! |
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rootok=1 |
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# Shut up init error check |
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[ -z "$root" ] && root="iscsi"
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