initramfs parameters invalid for IPv6 portal

[Kevin Otte]

In init.d/iscsi the portal address is collected thusly:
echo "$(cat "$connectiondev/persistent_address"):$(cat "$connectiondev/persistent_port"),$(cat "/sys/$sessiondev/tpgt")" >iscsi_portal

resulting in an iscsi_portal file looking like
2606:a000:a449:5900::4:3260,1

In finish.d/iscsi_settings, this string is then picked apart:
        group="${portal##*,}"
        portal="${portal%,*}"
        ip="${portal%%:*}"
        port="${portal#*:}"

These variables are then used to populate iscsi.initramfs, which ends up looking like this:
ISCSI_TARGET_NAME="iqn.2016-11.net.nivex:storage.istest"
ISCSI_TARGET_IP="2606"
ISCSI_TARGET_PORT="a000:a449:5900::4:3260"
ISCSI_TARGET_GROUP="1"
ISCSI_USERNAME="istest"
ISCSI_PASSWORD="123456789012"

I think the easiest fix would be to switch the greed of the matching, as in:
        ip="${portal%:*}"
        port="${portal##*:}"
though I worry about naively splitting on colon when dealing with IPv6 addresses like this.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "iscsi_settings.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Kevin Otte (nivex)]

I've gotten no motion upstream (Debian) on this. Is this something Ubuntu can pick up for its installer?