On 12/11/2012 11:26 PM, Chris Leech wrote:
On Mon, Dec 10, 2012 at 11:56:07PM +0000, "Jóhann B. Guðmundsson" wrote:
On 12/10/2012 10:08 PM, Chris Leech wrote:
2) Proper ordering of the iscsi.service for non-root filesystems.
Any and all feedback and/or help welcome.
Looking the unit file for iscsid I do believe I missed this (
basically the same as multipath unit ) since you know it's early
boot special, root and all that ;)
[Unit]
# Before or After lvm2-activation-early.service
DefaultDependencies=no
Conflicts=shutdown.target
[Install]
WantedBy=sysinit.target
Thanks, this got me going in the right direction. These unit files
seems to be working much better for me, with the startup and shutdown
ordering between iscsi, iscsid, and remote-fs mounts sorted out. I'm
not sure about the tgtd/targetcli stuff, not sure what the original need
there was.
You should remove if it's not necessary for iscsi to function and the
ordering for iscsi be put in those units instead
My non-root test install with /home on iSCSI also has a swap partition
on it, and that's still causing me all sorts of trouble if I don't
comment it out in fstab.
Hmm even if you add noauto after the relevant swap entry in /etc/fstab
actually it might be necessary for you to create a .swap unit for it.
( man systemd.swap for details )
Trying to order all this before swap.target
blew up in my face pretty good.
You should not order it after the swap.target however you can order
.swap unit before the swap.target
- Chris
--- iscsi.service ---
[Unit]
Description=Login and scanning of iSCSI devices
Documentation=man:iscsiadm(8) man:iscsid(8)
DefaultDependencies=no
Conflicts=shutdown.target
After=systemd-remount-fs.service network.target iscsid.service iscsiuio.service
Before=remote-fs.target
ConditionPathExists=/etc/iscsi/initiatorname.iscsi
[Service]
Type=oneshot
ExecStart=/usr/libexec/iscsi_mark_root_nodes
ExecStart=/sbin/iscsiadm -m node --loginall=automatic
ExecStop=/bin/sync
ExecStop=/sbin/iscsiadm -m node --logoutall=automatic
RemainAfterExit=true
[Install]
WantedBy=sysinit.target
--- iscsid.service ---
[Unit]
Description=Open-iSCSI
Documentation=man:iscsid(8) man:iscsiadm(8)
DefaultDependencies=no
Conflicts=shutdown.target
After=network.target tgtd.service targetcli.service
Before=remote-fs-pre.target
[Service]
Type=simple
ExecStart=/usr/sbin/iscsid -f -n
ExecStop=/sbin/iscsiadm -k 0 2
--- iscsid.socket ---
[Unit]
Description=Open-iSCSI iscsid Socket
Documentation=man:iscsid(8) man:iscsiadm(8)
[Socket]
ListenStream=@ISCSIADM_ABSTRACT_NAMESPACE
[Install]
WantedBy=sockets.target
So it seems to be in ready enough to be pushed to rawhide and the next
step is to boot with "systemd.log_level=debug systemd.log_target=kmsg
log_buf_len=1M enforcing=0" in the kernel command line to actually see
why that's blowing up in your face.
One question the iscsid is calling fork() right so why are you so
incline to use type simple for it?
There is an ordering gotcha when using type simple units which boils to
systemd has no way of knowing if what it just fired up is finished
running/setup etc. ( unless notified ) so you might find yourself in a
race condition.
JBG
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