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From 7e148e3b6f922e5eb1dcb7fc3c1fed715004e2ab Mon Sep 17 00:00:00 2001
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From: Lee Duncan <lduncan@suse.com>
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Date: Mon, 25 Mar 2019 16:49:19 -0700
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Subject: [PATCH] Dracut: only login to one target at a time
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For handling the configuration where there are two
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paths to an iscsi root target, each using a different
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NIC. In such a case, the initramfs was trying to configure
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the first NIC, then call iscsiroot to login to both targets,
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which would fail for the 2nd target, since the path to the
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2nd target was not yet configured. This would eventually
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work after a timeout. But it's better to login to just
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one target at a time.
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This change makes the initramfs handle multiple paths to an
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iscsi target better by logging into only one target at a time,
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rather than trying to login to all targets when only one of
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several NICs is up.
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This can be further optimized by using the initrd parameter
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"rd.iscsi.testroute", which would skip iscsiadm login attempts
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for targets to which no route exists.
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If the script is called again via the timeout initqueue,
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we try "iscsiadm -L onboot" again, hoping that some targets
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may now have become reachable.
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---
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modules.d/95iscsi/iscsiroot.sh | 12 +++++++++---
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1 file changed, 9 insertions(+), 3 deletions(-)
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diff --git a/modules.d/95iscsi/iscsiroot.sh b/modules.d/95iscsi/iscsiroot.sh
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index 4efc1d12..f3f88259 100755
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--- a/modules.d/95iscsi/iscsiroot.sh
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+++ b/modules.d/95iscsi/iscsiroot.sh
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@@ -228,7 +228,7 @@ handle_netroot()
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fi
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[ -n "$iscsi_param" ] && for param in $iscsi_param; do EXTRA="$EXTRA --name=${param%=*} --value=${param#*=}"; done
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- iscsiadm -m node -T $target \
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+ CMD="iscsiadm -m node -T $target \
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${iscsi_iface_name:+-I $iscsi_iface_name} \
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-p $iscsi_target_ip${iscsi_target_port:+:$iscsi_target_port} \
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--op=update \
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@@ -238,14 +238,20 @@ handle_netroot()
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${iscsi_in_username:+--name=node.session.auth.username_in --value=$iscsi_in_username} \
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${iscsi_in_password:+--name=node.session.auth.password_in --value=$iscsi_in_password} \
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$EXTRA \
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- $NULL
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+ $NULL"
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+ $CMD
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+ if [ "$netif" != "timeout" ]; then
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+ $CMD --login
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+ fi
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;;
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*)
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;;
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esac
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done
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- iscsiadm -m node -L onboot || :
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+ if [ "$netif" = "timeout" ]; then
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+ iscsiadm -m node -L onboot || :
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+ fi
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> $hookdir/initqueue/work
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netroot_enc=$(str_replace "$1" '/' '\2f')
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