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79 lines
2.4 KiB
79 lines
2.4 KiB
#!/bin/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" ] && getarg 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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# 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=$root |
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fi |
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# If it's not empty or iscsi we don't continue |
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[ -z "$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 isciroot is deprecated and might be removed in a future" |
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echo "release. See http://apps.sourceforge.net/trac/dracut/wiki/commandline for" |
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echo "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=${netroot:-iscsi} |
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modprobe iscsi_ibft |
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fi |
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# If it's not iscsi we don't continue |
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[ "${netroot%%:*}" = "iscsi" ] || return |
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# Check required arguments. there's only one, but it's at the end |
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if [ -z "$iscsi_firmware" ] ; then |
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case "${netroot##iscsi:*:*:*:*:}" in |
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$netroot|'') die "Argument targetname for iscsiroot is missing";; |
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esac |
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fi |
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# ISCSI actually supported? |
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[ -e /sys/devices/virtual/iscsi_transport ] || modprobe iscsi_tcp || die "iscsiroot requested but kernel/initrd does not support iscsi" |
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# Done, all good! |
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rootok=1 |
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# Shut up init error check |
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[ -z "$root" ] && root="iscsi" |
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echo '[ -e /dev/root ]' > /initqueue-finished/iscsi.sh |
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