So I don’t understand where the issue is with mount /export which is preventing the system from booting into multi-user mode.
Just read again this thread fom the beginning.
Creating snapshots cannot have any adverse effects.
Importing a root pool without taking specific precautions will create trouble, which is what you are experiencing.
In post 9 I wrote:
Quote:
There are also specific options you need to use to import a root pool as otherwise, some of the properties, especially mount points, will collide with your current root pool.
In post #13 I wrote:
Quote:
This is dubious, as I already wrote, you need specific options to import a root pool, at least a different root mountpoint.
and
Code:
Yes, but I suspect there will be errors because you'll end up with multiple file systems with the same mount point.
Can you offer any advice on what to troubleshoot to get out of this hole? Fortunately, I managed to boot it up from another partition which also has rpool and it is working. However, it is a different system which I still couldn't get in as root. Nevertheless, I need to find out more about the differences with this rpool setup compared to the previous one that I have backed up, ended up not able to boot it up to multi-user mode due to something in export folder.
Some people have advised me to remove home folder (copy it to some where first) in export before rebooting but I hesitate of not being locked out of the system altogether.
I am very much dependent on your guidance from here.
Can you offer any advice on what to troubleshoot to get out of this hole?
It is not easy without knowing precisely what you did. I would probably start by destroying backups/usbdrive, if this is where you imported the stream.
Ok jlliagre,
I am so glad you haven't deserted me now that we have come to a crunch. Let me list out as much commands recalled used to carry out the backup:
Below is the zpool output of an alternative multi-boot system (servername_s1) that I have ended up booting into on the same box, the only one I can boot up successfully into yet couldn't work out what the root password is still:
Code:
-bash-3.2$ hostname
servername_sr02
-bash-3.2$ uname -a
SunOS servername_sr02 5.10 Generic_147441-09 i86pc i386 i86pc
-bash-3.2$ df -h
Filesystem size used avail capacity Mounted on
rpool/ROOT/servername_srs_1 228G 6.4G 204G 4% /
/devices 0K 0K 0K 0% /devices
ctfs 0K 0K 0K 0% /system/contract
proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
swap 8.2G 1.0M 8.2G 1% /etc/svc/volatile
objfs 0K 0K 0K 0% /system/object
sharefs 0K 0K 0K 0% /etc/dfs/sharetab
rpool/ROOT/servername_srs_1/var 228G 1.6G 204G 1% /var
swap 8.2G 1.9M 8.2G 1% /tmp
swap 8.2G 376K 8.2G 1% /var/run
rpool/export 228G 32K 204G 1% /export
rpool/export/home 228G 4.6M 204G 1% /export/home
rpool 228G 49K 204G 1% /rpool
/vol/dev/dsk/c0t0d0/sol_10_811_x86
-bash-3.2$ /sbin/zpool status -v rpool
pool: rpool
state: ONLINE
scan: resilvered 9.59G in 0h12m with 0 errors on Wed Mar 14 12:09:12 2012
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c1t1d0s0 ONLINE 0 0 0
c1t0d0s0 ONLINE 0 0 0
errors: No known data errors
-bash-3.2$ ./zfs list -r rpool
NAME USED AVAIL REFER MOUNTPOINT
rpool 24.4G 204G 49K /rpool
rpool@001 30K - 49K -
rpool/ROOT 10.7G 204G 31K legacy
rpool/ROOT@001 0 - 31K -
rpool/ROOT/10 14.1M 204G 4.37G /tmp/.liveupgrade.278.554/lu_zone_update.554
rpool/ROOT/10@001 299K - 4.37G -
rpool/ROOT/10/var 6.50M 204G 1011M /tmp/.liveupgrade.278.554/lu_zone_update.554/var
rpool/ROOT/10/var@001 1K - 1011M -
rpool/ROOT/base_srs_install 38.2M 204G 4.48G /tmp/.liveupgrade.278.554/lu_zone_update.554
rpool/ROOT/base_srs_install@001 299K - 4.48G -
rpool/ROOT/base_srs_install/var 14.4M 204G 1.47G /tmp/.liveupgrade.278.554/lu_zone_update.554/var
rpool/ROOT/base_srs_install/var@001 1K - 1.47G -
rpool/ROOT/servername_srs_1 189M 204G 6.37G /
rpool/ROOT/servername_srs_1@001 3.29M - 6.37G -
rpool/ROOT/servername_srs_1/var 112M 204G 1.56G /var
rpool/ROOT/servername_srs_1/var@001 10.5M - 1.48G -
rpool/ROOT/servername_srs_2 10.5G 204G 6.47G /tmp/.liveupgrade.278.554/lu_zone_update.554
rpool/ROOT/servername_srs_2@base_srs_install 75.0M - 4.37G -
rpool/ROOT/servername_srs_2@servername_srs_1 71.3M - 4.47G -
rpool/ROOT/servername_srs_2@servername_srs_2 67.2M - 6.37G -
rpool/ROOT/servername_srs_2@001 13.2M - 6.38G -
rpool/ROOT/servername_srs_2/var 3.74G 204G 3.33G /tmp/.liveupgrade.278.554/lu_zone_update.554/var
rpool/ROOT/servername_srs_2/var@base_srs_install 23.8M - 1011M -
rpool/ROOT/servername_srs_2/var@servername_srs_1 14.8M - 1.46G -
rpool/ROOT/servername_srs_2/var@servername_srs_2 34.7M - 1.48G -
rpool/ROOT/servername_srs_2/var@001 3.36M - 3.33G -
rpool/dump 1.00G 204G 1.00G -
rpool/dump@001 16K - 1.00G -
rpool/export 4.83M 204G 32K /export
rpool/export@001 0 - 32K -
rpool/export/home 4.80M 204G 4.61M /export/home
rpool/export/home@001 192K - 4.61M -
rpool/swap 12.7G 213G 4.16G -
rpool/swap@001 0 - 4.16G -
-bash-3.2$ ls -lt /export
total 3
drwxr-xr-x 3 root root 3 Nov 16 00:08 home
-bash-3.2$ cd /export
-bash-3.2$ ls
home
-bash-3.2$ ls -lt
total 3
drwxr-xr-x 3 root root 3 Nov 16 00:08 home
-bash-3.2$ cd home
-bash-3.2$ ls -lt
total 3
drwxr-xr-x 15 support sys 23 Nov 16 19:02 support
-bash-3.2$ cd support
-bash-3.2$ ls -lt
total 6
drwxr-xr-x 2 support sys 3 Mar 10 2012 Desktop
drwxr-xr-x 2 support sys 2 Mar 10 2012 Documents
I have taken the following action in an attempt to resolve the mount issue of ‘ /export' by removing home under /export mount point which is preventing ‘/export' from mounting for servername_sr02:
Code:
- Boot up in single user mode & login as root
- Unmount /export/home
- Check the /export directory (mount point)
- Remove the /export/home directory
- Reboot but found another set of similar error as follows:
cannot mount ‘/export': directory is not empty
svc:/system/filesystem/local:default:WARNING:/usr/sbin/zfs mount -a failed: exit status 1
Nov 15 10:50:17 svc.startd[10]:svc:/system/filesystem/local: default: Method “/lib/svc/method/fs-local” failed with exit status 95.
svc.startd[10]: system/filesystem/local: default failed fatally: transitioned to maintenance
ERROR: svc:/system/filesystem/minimal: default faild to mount /var/run (see ‘svc -x' for details)
Nov 18 00:44:06 svc.startd[10]:svc:/system/filesystem/minimal:default: Method /lib/svc/method/fs-minimal “ failed with exit status 95.
Nov 18 00:44:06 svc.startd[10]:svc:/system/filesystem/minimal:default: failed fatally transitioned to maintenance...
Requesting System Maintenance Mode
Console login service(s) cannot run
Root password for system maintenance (Control-d to bypass)
( 1 ) Why am I encountering yet another svc error when booting into servername_sr02? I am still not clear whether the same rpool is used by both of the following boot up filesystems/partitions in Grub:
( 2 ) Can you confirm whether I am still using the same rpool on both boot up filesystems? They appear to have a different ROOT ‘/' filesystem and hence explains why I am not able to su in as root with the original password on the failed servername_srs_2.
( 3 ) I wouldn't mind staying in the current servername_srs_1 boot up filesystem provided that I can hack in as root.
( 4 ) Also can longer boot up from Solairs 10 x86 DVD installation disk after having inadvertently reset boot up firmware. Now the system would go ........................... and not go any further.
Hope this update hasn't confused you completely.
As always, thank you so much for stick around,
George
Beyond the incorrect hyphens, the -R option is missing a parameter.
Did you really use the -R option, if yes, with what parameter which is missing here ?
Are you sure c0t0d0 was the USB drive ?
Why did you use the -f option ?
Explanation on commands used to create alternative backups zpool on same system
Hi Jlliagre,
I think the missing parameter was the /mnt. The full syntax would be:
Code:
zpool create -f -R /mnt backups c0t0d0s2
Where -R is to create an alternative zpool on the same system according to my understanding.
I am absolutely sure that disk c0t0d0 is for the USB drive. Used format -e and found it to have 1.9TB size as opposed to the other 2 around 239GB.
I used -f with the intention to force the zpool creation after it failed without it. Nevertheless, this was only my recollection and it may not be the exact command used. It was unfortunate that I couldn't get into the text mode console at the time to copy-paste every step.
Btw, what to specify in Grub to boot up in text mode (ttyb.....) so I can SSH to console screen. I normally use the following sequence of step to into single user mode for instance when boot up from Solaris 10 x86 installation DVD disk:
Code:
( i ) e (edit)
( ii ) e (edit)
( iii ) append -s after CDROM follow by ENTER
( iv ) b (boot up)
Btw, this Sun Ray server has not had a backup done in the past so I am hesitant to tamper with it apart from hoping to crack its password, which would save a lot of headaches.
I suspect that it would be similar sequence but not sure what the syntax is to boot up from local disk and to text ttyb.... mode.
I think the missing parameter was the /mnt. The full syntax would be:
Code:
zpool create -f -R /mnt backups c0t0d0s2
Where -R is to create an alternative zpool on the same system according to my understanding.
The -R option here is dubious. Its only effect is to have the backups pool to be mounted on /mnt instead of the default location /backups. That might lead to confusion as /mnt is for traditional temporary mounts.
Quote:
I am absolutely sure that disk c0t0d0 is for the USB drive. Used format -e and found it to have 1.9TB size as opposed to the other 2 around 239GB.
Granted. This is surprising as one should expect the first drive on the first controller to be a internal disk but why not.
Quote:
I used -f with the intention to force the zpool creation after it failed without it. Nevertheless, this was only my recollection and it may not be the exact command used. It was unfortunate that I couldn't get into the text mode console at the time to copy-paste every step.
It looks like you created a pool on a device that was containing an already mounted file system. This usually leads to disasters.
Quote:
Btw, what to specify in Grub to boot up in text mode (ttyb.....) so I can SSH to console screen. I normally use the following sequence of step to into single user mode for instance when boot up from Solaris 10 x86 installation DVD disk:
Code:
( i ) e (edit)
( ii ) e (edit)
( iii ) append -s after CDROM follow by ENTER
( iv ) b (boot up)
Not sure about what you mean. ttyb is for serial console access, not ssh. In single user mode, the ssh service is disabled.
Back to the commands you entered:
You created:
- a recursive snapshot of the root pool named 001
- a zpool on your USB disk while it might already be used by something else.
- a file system named usbdrive on this pool
Then, you imported this pool.
Can you explain why as it should have been already imported ?
What did the "zfs list" and "zpool status" commands report ?
The "zfs send" command syntax is incorrect, you cannot send a file system but a snapshot and the -r option is not supported here so I'm assuming you used this command:
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