Re: [zfs-discuss] Wrong rpool used after reinstall!
- Original Message - From: Brian Wilson brian.wil...@doit.wisc.edu To: zfs-discuss@opensolaris.org Cc: Sent: Thursday, August 4, 2011 2:57:26 PM Subject: Re: [zfs-discuss] Wrong rpool used after reinstall! I'm curious - would it work to boot from a live CD, go to shell, and deport/import/rename the old rpool, then boot normally? Hi Brian, No, it doesn't work. Kernel panic still happens. Most modern boards will be boot from a live USB stick. I think this quote was from Ian. Yes they will, but only Solaris 11 Express and OpenIndiana seem to have USB bootable installers. I installed Solaris 11 this way. You can see from the screen shot I posted the error still occurs. The data is still inaccessible. I was hope somebody from Oracle would say something but I don't see any emails. Jim ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
On 8/3/2011 5:47 PM, Ian Collins wrote: On 08/ 4/11 01:29 AM, Stuart James Whitefish wrote: I have Solaris on Sparc boxes available if it would help to do a net install or jumpstart. I have never done those and it looks complicated, although I think I may be able to get to the point in the u9 installer on my Intel box where it asks me whether I want to install from DVD etc. But I may be wrong, and anyway the single user shell in the u9 DVD also panics when I try to import tank so maybe that won't help. Put your old drive in a USB enclosure and connect it to another system in order to read back the data. I'm curious - would it work to boot from a live CD, go to shell, and deport/import/rename the old rpool, then boot normally? I have only 4 sata ports on this Intel box so I have to keep pulling cables to be able to boot from a DVD and then I won't have all my drives available. I cannot move these drives to any other box because they are consumer drives and my servers all have ultras. Most modern boards will be boot from a live USB stick. -- --- Brian Wilson, Solaris SE, UW-Madison DoIT Room 3114 CSS608-263-8047 bfwilson(a)doit.wisc.edu 'I try to save a life a day. Usually it's my own.' - John Crichton --- ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
Jim wrote: But I may be wrong, and anyway the single user shell in the u9 DVD also panics when I try to import tank so maybe that won't help. Ian wrote: Put your old drive in a USB enclosure and connect it to another system in order to read back the data. Given that update 9 can't import the pool is this really worth trying? I would have to buy the enclosures, if I had them already I would have tried it in desperation. Jim wrote: I have only 4 sata ports on this Intel box so I have to keep pulling cables to be able to boot from a DVD and then I won't have all my drives available. I cannot move these drives to any other box because they are consumer drives and my servers all have ultras. Ian wrote: Most modern boards will be boot from a live USB stick. True but I haven't found a way to get an ISO onto a USB that my system can boot from it. I was using DD to copy the iso to the usb drive. Is there some other way? This is really frustrating. I haven't had any problems with Linux filesystems but I heard ZFS was safer. It's really ironic that I lost access to so much data after moving it to ZFS. Isn't there any way to get them back on my newly installed U8 system? If I disconnect this pool the system starts fine. Otherwise my questions above in my summary post might be key to getting this working. Thanks, Jim -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
I'm opening a new thread since the original subject was not as helpful and I saw a similar problem mentioned in May of this year (2011) and others going back to 2009. New thread is found at http://opensolaris.org/jive/thread.jspa?threadID=140899 -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
On Thu, Aug 04, 2011 at 03:52:39AM -0700, Stuart James Whitefish wrote: Jim wrote: But I may be wrong, and anyway the single user shell in the u9 DVD also panics when I try to import tank so maybe that won't help. Ian wrote: Put your old drive in a USB enclosure and connect it to another system in order to read back the data. Given that update 9 can't import the pool is this really worth trying? I would have to buy the enclosures, if I had them already I would have tried it in desperation. Jim wrote: I have only 4 sata ports on this Intel box so I have to keep pulling cables to be able to boot from a DVD and then I won't have all my drives available. I cannot move these drives to any other box because they are consumer drives and my servers all have ultras. Ian wrote: Most modern boards will be boot from a live USB stick. True but I haven't found a way to get an ISO onto a USB that my system can boot from it. I was using DD to copy the iso to the usb drive. Is there some other way? Maybe give http://unetbootin.sourceforge.net/ a try. Bill This is really frustrating. I haven't had any problems with Linux filesystems but I heard ZFS was safer. It's really ironic that I lost access to so much data after moving it to ZFS. Isn't there any way to get them back on my newly installed U8 system? If I disconnect this pool the system starts fine. Otherwise my questions above in my summary post might be key to getting this working. Thanks, Jim -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
On Fri, 5 Aug 2011, Bill wrote: True but I haven't found a way to get an ISO onto a USB that my system can boot from it. I was using DD to copy the iso to the usb drive. Is there some other way? Maybe give http://unetbootin.sourceforge.net/ a try. This package seems to list support for most x86 OSs EXCEPT for *Solaris. Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer,http://www.GraphicsMagick.org/ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
On 08/ 4/11 10:52 PM, Stuart James Whitefish wrote: Ian wrote: Put your old drive in a USB enclosure and connect it to another system in order to read back the data. Given that update 9 can't import the pool is this really worth trying? I would use a newer (express maybe) system. Most modern boards will be boot from a live USB stick. True but I haven't found a way to get an ISO onto a USB that my system can boot from it. I was using DD to copy the iso to the usb drive. Is there some other way? Recent OpenSolaris based builds have a handy utility usbcopy. This is really frustrating. I haven't had any problems with Linux filesystems but I heard ZFS was safer. It's really ironic that I lost access to so much data after moving it to ZFS. Isn't there any way to get them back on my newly installed U8 system? If I disconnect this pool the system starts fine. Otherwise my questions above in my summary post might be key to getting this working. If you have support, badger them. Otherwise use a newer system. -- Ian. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
You wrote: Hi Roy, things got alot worse since my first email. I don't know what happened but I can't import the old pool at all. It shows no errors but when I import it I get a kernel panic from assertion failed: zvol_get_stats(os, nv) which looks like is fixed by patch 6801926 which is applied in Solaris 10u9. But I cannot boot update 9 on this box! I tried Solaris Express, none of those will run right either. They all go into maintenance mode. The last thing I can boot is update 8 and that is the one with the ZFS bug. If they go into maintenance mode but could recognize the disk, you should still be able to do zfs stuff (zpool import, etc). If you're lucky you'd only miss the GUI Thank you for your comments. This is pretty frustrating. Unfortunately I'm hitting another bug I saw on the net. Once the Express Live CD or text installer falls back to maintenance mode, I keep getting a msg bash: /usr/bin/hostname command not found (from memory, may not be exact). All ZFS commands fail with this message. I don't know what causes this and I'm surprised since Solaris 10 update 8 works mostly fine on the same hardware. I would expect support to get wider not less but the opposite seems to be happening because I can't install update 9 on this machine. I have 200G of files I deliberately copied to this new mirror and now I can't get at them! Any ideas? Another thing you can try (albeit more complex) is use another OS (install, or even use a linux Live CD), install virtualbox or similar on it, pass the disk as raw vmdk, and use solaris express on the VM. You should be able to at least import the pool and recover the data. I didn't think I would be able to use raw disks with exported pools in a VM but your comment is interesting. I will consider it. The host is bootable, it just immediately panics upon trying to import the 2nd pool. Is there some way I can force a normal boot where my root pool is mounted but it doesn't mount the other pool? If so I could install VirtualBox and try your suggestion without moving the drives to another box. Aren't there any ZFS recovery tools, or is ZFS just not expected to break? I mentioned I can boot the update 9 installer, but it fails when trying to read media from the DVD because of a lack of nvidia drivers (documented limitation) I wonder if I can do some kind of network or jumpstart install. I have no other Solaris Intel boxes (and this post should explain some of the reasons why) but I have several Solaris Sparc boxes. I haven't gone through the doc on net/jumpstart installs, there is alot to read. But maybe this would get update 9 on that box and maybe it could import the pool. Are there any other Solaris based live CD or DVD I could try that have known, good ZFS support? I will need something where I can scp/rcp/rsync the data off that box, assuming that I can import it somehow. Thanks, Jim ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
Thanks for your comments so far. I'll try to put everything I know into this post now that I have signed up at the forums. Solaris 10, update 8 Intel, 500G ZFS root mirror rpool. I recently received two 320G drives and realized from reading this list it would have been better if I would have done the install on the small drives but I didn't have them at the time. I added the two 320G drives and created tank mirror. I moved some data from other sources to the tank and then decided to go ahead and do a new install. In preparation for that I moved all the data I wanted to save onto the rpool mirror and then installed Solaris 10 update 8 again on the 320G drives. When my system rebooted after the installation, I saw for some reason it used my tank pool as root. I realize now since it was originally a root pool and had boot blocks this didn't help. Anyway I shut down, changed the boot order and then booted into my system. It paniced when trying to access the tank and instantly rebooted. I had to go through this several times until I caught a glimpse of one of the first messages: assertion failed: zvol_get_stats(os, nv) Here is what my system looks like when I boot into failsafe mode. # zpool import pool: rpool id: 16453600103421700325 state: ONLINE action: The pool can be imported using its name or numeric identifier. config: rpoolONLINE mirror ONLINE c0t2d0s0 ONLINE c0t3d0s0 ONLINE pool: tank id: 12861119534757646169 state: ONLINE action: The pool can be imported using its name or numeric identifier. config: tank ONLINE mirror ONLINE c0t0d0s0 ONLINE c0t1d0s0 ONLINE # zpool import tank cannot import 'tank': pool may be in use from other system use '-f' to import anyway When I do # zpool import -f tank I get a kernal panic and the screen flashes and the machine quickly reboots before I can see what's written, but I did see assertion failed: zvol_get_stats(os, nv) and there seems to be a patch 6801926 associated with it. I tried the following: 1. fmdump -ev. Either the command is not found when I bring my system up in the Solaris failsafe mode, or when the root pool which is ok gets mounted on /a the command is also not found. I did chroot /a /bin/sh and then the command is found but I get error messages about not having certain files available in /var, probably because I have /var on a separate filesystem. I do not know how to mount things as if the system came up normally and if I boot in the normal mode although it can import the root pool the tank pool was also a root pool at one time and it seems to mount it and then panic and reboot. I think it would be a lot easier to do whatever we can do if I could get the system to boot into normal mode without importing tank. Can anyone please explain in very clear and simple directions how to do that please? 2. Solaris 10 update 9 does boot but won't install, presumably because of not having a CD driver for my nvidia chipset, although the install does start it gives a message something like the CD is not a Solaris OS CD.. I tried single user shell and it also panics when I zpool import -f tank. This is very discouraging because according to the Solaris 10 update 9 patch list, 6801926 is supposed to be preapplied. I don't understand why the update 8 DVD works on my system but update 9 doesn't. That is just weird. 3. Solaris 11 Express falls into maintenance mode and doesn't go any further. I get an error message something like bash: /usr/bin/hostname command not found, and I can't do anything useful. 4. OpenIndiana Server doesn't come all the way up. I get the Solaris 5.11 message and then it does nothing. 5. Milax falls into maintenance mode like Sol 11 Express and then panics when I try to import tank. I have Solaris on Sparc boxes available if it would help to do a net install or jumpstart. I have never done those and it looks complicated, although I think I may be able to get to the point in the u9 installer on my Intel box where it asks me whether I want to install from DVD etc. But I may be wrong, and anyway the single user shell in the u9 DVD also panics when I try to import tank so maybe that won't help. I have only 4 sata ports on this Intel box so I have to keep pulling cables to be able to boot from a DVD and then I won't have all my drives available. I cannot move these drives to any other box because they are consumer drives and my servers all have ultras. I have about 200G of data on the tank pool, about 100G or so I don't have anywhere else. I created this pool specifically to make a safe place to store data that I had accumulated over several years and didn't have organized yet. Can anyone PLEASE help me get this data back! Thank you. Jim -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org
Re: [zfs-discuss] Wrong rpool used after reinstall!
On 08/ 4/11 01:29 AM, Stuart James Whitefish wrote: I have Solaris on Sparc boxes available if it would help to do a net install or jumpstart. I have never done those and it looks complicated, although I think I may be able to get to the point in the u9 installer on my Intel box where it asks me whether I want to install from DVD etc. But I may be wrong, and anyway the single user shell in the u9 DVD also panics when I try to import tank so maybe that won't help. Put your old drive in a USB enclosure and connect it to another system in order to read back the data. I have only 4 sata ports on this Intel box so I have to keep pulling cables to be able to boot from a DVD and then I won't have all my drives available. I cannot move these drives to any other box because they are consumer drives and my servers all have ultras. Most modern boards will be boot from a live USB stick. -- Ian. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Wrong rpool used after reinstall!
I am having a problem after a new install of Solaris 10. The installed rpool works fine when I have only those disks connected. When I connect disks from an rpool I created during a previous installation, my newly installed rpool is ignored even though the BIOS (x86) is set to boot only from the new rpool drives. When the system starts it uses the old rpool! How can I get around this? I want to use my new install and then import the old rpool under a new name, and clean things up. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
I am having a problem after a new install of Solaris 10. The installed rpool works fine when I have only those disks connected. When I connect disks from an rpool I created during a previous installation, my newly installed rpool is ignored even though the BIOS (x86) is set to boot only from the new rpool drives. When the system starts it uses the old rpool! How can I get around this? I want to use my new install and then import the old rpool under a new name, and clean things up. Boot on the install CD, import the old rpool (leave the new rpool drives unplugged) and export it again. Once you have rebooted on the new rpool, you can reimport the old rpool with a new name (rpool import someid newname). Keep in mind that reimporting an rpool may render it useless for booting, at least that's not optimal. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
Hi Roy, things got alot worse since my first email. I don't know what happened but I can't import the old pool at all. It shows no errors but when I import it I get a kernel panic from assertion failed: zvol_get_stats(os, nv) which looks like is fixed by patch 6801926 which is applied in Solaris 10u9. But I cannot boot update 9 on this box! I tried Solaris Express, none of those will run right either. They all go into maintenance mode. The last thing I can boot is update 8 and that is the one with the ZFS bug. I have 200G of files I deliberately copied to this new mirror and now I can't get at them! Any ideas? Thanks. Jim ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Wrong rpool used after reinstall!
On Wed, Aug 3, 2011 at 8:38 AM, Anonymous Remailer (austria) mixmas...@remailer.privacy.at wrote: Hi Roy, things got alot worse since my first email. I don't know what happened but I can't import the old pool at all. It shows no errors but when I import it I get a kernel panic from assertion failed: zvol_get_stats(os, nv) which looks like is fixed by patch 6801926 which is applied in Solaris 10u9. But I cannot boot update 9 on this box! I tried Solaris Express, none of those will run right either. They all go into maintenance mode. The last thing I can boot is update 8 and that is the one with the ZFS bug. If they go into maintenance mode but could recognize the disk, you should still be able to do zfs stuff (zpool import, etc). If you're lucky you'd only miss the GUI I have 200G of files I deliberately copied to this new mirror and now I can't get at them! Any ideas? Another thing you can try (albeit more complex) is use another OS (install, or even use a linux Live CD), install virtualbox or similar on it, pass the disk as raw vmdk, and use solaris express on the VM. You should be able to at least import the pool and recover the data. -- Fajar ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
