lucreate errors with "cannot create '.': missing dataset name"

Asset ID:	1-72-1323221.1
Update Date:	2011-05-19
Keywords:

Solution Type Problem Resolution Sure

Solution 1323221.1 : lucreate errors with "cannot create '.': missing dataset name"

Applies to:

Sun SPARC Enterprise M4000 Server - Version: Not Applicable and later [Release: N/A and later ]
Solaris SPARC Operating System - Version: 10 10/08 U6 to 10 9/10 [Release: 10.0 to 10.0]
Information in this document applies to any platform.

Symptoms

#lucreate -n sol_10u8_sparc_patch
Analyzing system configuration.
Comparing source boot environment <sol_10u8_sparc> file systems with the
file system(s) you specified for the new boot environment. Determining
which file systems should be in the new boot environment.
Updating boot environment description database on all BEs.
Updating system configuration files.
The device </dev/dsk/c3t5000C5001D6DA5FBd0s0> is not a root device for any boot environment; cannot get BE ID.
Creating configuration for boot environment <sol_10u8_sparc_patch>.
Source boot environment is <sol_10u8_sparc>.
Creating boot environment <sol_10u8_sparc_patch>.
Cloning file systems from boot environment <sol_10u8_sparc> to create boot environment <sol_10u8_sparc_patch>.
Creating snapshot for <rpool/ROOT/sol_10u8_sparc> on <rpool/ROOT/sol_10u8_sparc@sol_10u8_sparc_patch>.
Creating clone for <rpool/ROOT/sol_10u8_sparc@sol_10u8_sparc_patch> on <rpool/ROOT/sol_10u8_sparc_patch>.
Setting canmount=noauto for </> in zone <global> on <rpool/ROOT/sol_10u8_sparc_patch>.
Creating snapshot for <sst2u361> on <sst2u361@sol_10u8_sparc_patch>.
cannot create '.': missing dataset name
Creating clone for <sst2u361@sol_10u8_sparc_patch> on <sst2u361-sol_10u8_sparc_patch>.
ERROR: cannot create 'sst2u361-sol_10u8_sparc_patch': missing dataset name
ERROR: Unable to clone <> on <>.
/usr/lib/lu/luclonefs: sst2u361@sol_10u8_sparc_patch: not found
cannot open 'sst2u361-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u361-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u361-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u361-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u361-sol_10u8_sparc_patch': dataset does not exist
ERROR: Failed to mount dataset <sst2u361-sol_10u8_sparc_patch>
cannot open 'sst2u361-sol_10u8_sparc_patch': dataset does not exist
sst2u361: Bad document property
Creating snapshot for <sst2u515> on <sst2u515@sol_10u8_sparc_patch>.
cannot create '.': missing dataset name
Creating clone for <sst2u515@sol_10u8_sparc_patch> on <sst2u515-sol_10u8_sparc_patch>.
ERROR: cannot create 'sst2u515-sol_10u8_sparc_patch': missing dataset name
ERROR: Unable to clone <> on <>.
/usr/lib/lu/luclonefs: sst2u515@sol_10u8_sparc_patch: not found
cannot open 'sst2u515-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u515-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u515-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u515-sol_10u8_sparc_patch': dataset does not exist
cannot open 'sst2u515-sol_10u8_sparc_patch': dataset does not exist
ERROR: Failed to mount dataset <sst2u515-sol_10u8_sparc_patch>
cannot open 'sst2u515-sol_10u8_sparc_patch': dataset does not exist
sst2u515: Bad document property
Population of boot environment <sol_10u8_sparc_patch> successful.
Creation of boot environment <sol_10u8_sparc_patch> successful.

Changes

zpool_list
********
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
rpool 136G 38.5G 97.5G 28% ONLINE -
sst2u361 19.9G 9.70G 10.2G 48% ONLINE -
sst2u515 19.9G 4.24G 15.6G 21% ONLINE -

zoneadm list
**********
ID NAME STATUS PATH BRAND IP
0 global running / native shared
8 sst2u361 running /zone/sst2u361 native shared
10 sst2u515 running /zone/sst2u515 native shared

zfs get mountpoint sst2u361
*****
NAME PROPERTY VALUE SOURCE
sst2u361 mountpoint /zone/sst2u361 local

zonecfg -z sst2u361 info
*****
zonename: sst2u361
zonepath: /zone/sst2u361
brand: native
autoboot: true
bootargs:
----snip----

Cause

Lucreate will fail when ZFS-based zones are located at the top of ZFS pools. The ZFS Administration Guide will be updated (via CR 7016579) to reflect the following:

Live upgrade cannot be used to create alternate BE if the source BE has a non global zone with zonepath being the mountpoint of top level pool dataset. For example: if there is a pool zone_pool with pool dataset mounted as /zone_pool, Then in this case user should not create a non global zone with zonepath=/zone_pool.

However user can have following possible zonepath configurations :
--> zonepath can be a subdirectory of pool dataset mountpoint for example /zone_pool/zonepath
--> zonepath can be a mounpoint of desendent dataset of a pool. for example if there is a dataset zone_pool/zone1 mounted at /zones/zone1, zonepath can be /zones/zone1
--> zonepath can be a subdirectory of desendent dataset of a pool. for example if there is a dataset zone_pool/zone1 mounted at /zones/zone1, zonepath can be /zones/zone1/zone_dir

Solution

1.- make a zone backup

2.- change the zone dataset

zoneadm -z sst2u361 halt

zfs umount sst2u361
zfs set mountpoint=/sst2u361 sst2u361
zfs mount sst2u361
zfs create sst2u361/zoneroot

# pwd
/sst2u361
# ls
dev root zoneroot
# mv dev /sst2u361/zoneroot
# mv root /sst2u361/zoneroot
zfs set mountpoint=/zone/sst2u361 sst2u361/zoneroot
chmod 700 /zone/sst2u361
zoneadm -z sst2u361 boot

3.- Run lucreate again.

References

<BUG:6867013> - LUCREATE FAILS WHEN ZFS-BASED ZONES ARE LOCATED AT THE TOP OF ZFS POOLS

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