Migrate /var from UFS to ZFS - comp.unix.solaris

Hi, I am quite new to Solaris10 and ZFS and I want to change /var from UFS to ZFS. What I did: ufsdump -0f /export/var.dump /var umount -f /var zpool create -f -m /var var c0t2d0s4 cd /var ufsrestore rvf /export/var.dump Now after removing the /var mount point from /etc/vfstab and rebooting, no /var is mounted at all - therefore the system doesn't come up correctly. Relating to svcs -x and some console errors, I got the following hints: "set mountpoint=/var" to automount, or: "set mountpoint=legacy" and set a proper entry in /etc/vfstab None of these worked. Can you give me any help? How has the /etc/vfstab entry to look like? What am I missing? Thanks in advance, Dietmar

In article <MPG.21bf5d1b3c1566249896b7@news.netcologne.de>, Dietmar Braun <spam2007-09-10@arath.org> wrote: > Hi, > > I am quite new to Solaris10 and ZFS and I want to change /var from UFS > to ZFS. > > What I did: > > ufsdump -0f /export/var.dump /var > umount -f /var > zpool create -f -m /var var c0t2d0s4 > cd /var > ufsrestore rvf /export/var.dump > > Now after removing the /var mount point from /etc/vfstab and rebooting, > no /var is mounted at all - therefore the system doesn't come up > correctly. > > Relating to svcs -x and some console errors, I got the following hints: > "set mountpoint=/var" to automount, or: > "set mountpoint=legacy" and set a proper entry in /etc/vfstab > > None of these worked. Can you give me any help? How has the /etc/vfstab > entry to look like? What am I missing? > > Thanks in advance, > Dietmar AFAIK, none of the boot disk which contains the running system can be ZFS currently. For now put your data on ZFS and keep the system on UFS. -- DeeDee, don't press that button! DeeDee! NO! Dee...

On Dec 4, 6:11 pm, Michael Vilain <vil...@NOspamcop.net> wrote: > In article <MPG.21bf5d1b3c156624989...@news.netcologne.de>, > Dietmar Braun <spam2007-09...@arath.org> wrote: > > > > > > > Hi, > > > I am quite new to Solaris10 and ZFS and I want to change /var from UFS > > to ZFS. > > > What I did: > > > ufsdump -0f /export/var.dump /var > > umount -f /var > > zpool create -f -m /var var c0t2d0s4 > > cd /var > > ufsrestore rvf /export/var.dump > > > Now after removing the /var mount point from /etc/vfstab and rebooting, > > no /var is mounted at all - therefore the system doesn't come up > > correctly. > > > Relating to svcs -x and some console errors, I got the following hints: > > "set mountpoint=/var" to automount, or: > > "set mountpoint=legacy" and set a proper entry in /etc/vfstab > > > None of these worked. Can you give me any help? How has the /etc/vfstab > > entry to look like? What am I missing? > > > Thanks in advance, > > Dietmar > > AFAIK, none of the boot disk which contains the running system can be > ZFS currently. For now put your data on ZFS and keep the system on UFS. > > -- > DeeDee, don't press that button! DeeDee! NO! Dee...- Hide quoted text - > > - Show quoted text - Michael is right. The UFS reader in the Solaris bootstrap code cannot read ZFS yet. That may change in the near future.

Gorkhan wrote: > On Dec 4, 6:11 pm, Michael Vilain <vil...@NOspamcop.net> wrote: >> In article <MPG.21bf5d1b3c156624989...@news.netcologne.de>, >> Dietmar Braun <spam2007-09...@arath.org> wrote: >> >> >> >> >> >>> Hi, >>> I am quite new to Solaris10 and ZFS and I want to change /var from UFS >>> to ZFS. >>> What I did: >>> ufsdump -0f /export/var.dump /var >>> umount -f /var >>> zpool create -f -m /var var c0t2d0s4 >>> cd /var >>> ufsrestore rvf /export/var.dump >>> Now after removing the /var mount point from /etc/vfstab and rebooting, >>> no /var is mounted at all - therefore the system doesn't come up >>> correctly. >>> Relating to svcs -x and some console errors, I got the following hints: >>> "set mountpoint=/var" to automount, or: >>> "set mountpoint=legacy" and set a proper entry in /etc/vfstab >>> None of these worked. Can you give me any help? How has the /etc/vfstab >>> entry to look like? What am I missing? >>> Thanks in advance, >>> Dietmar >> AFAIK, none of the boot disk which contains the running system can be >> ZFS currently. For now put your data on ZFS and keep the system on UFS. >> >> -- >> DeeDee, don't press that button! DeeDee! NO! Dee...- Hide quoted text - >> >> - Show quoted text - > > Michael is right. The UFS reader in the Solaris bootstrap code cannot > read ZFS yet. That may change in the near future. But that logic should mean that / MUST be UFS but /var COULD be ZFS... Back in the day before UFS logging, /var was the filesystem most likely to be corrupted during a power cut (and so a strong argument for having it on its own disk slice); logging almost completely fixed that but ZFS would make it even better. Pete.

In article <fj5mav$dvh$1@gemini.csx.cam.ac.uk>, Peter Bunclark <psb@ast.cam.ac.uk> wrote: > Gorkhan wrote: > > On Dec 4, 6:11 pm, Michael Vilain <vil...@NOspamcop.net> wrote: > >> In article <MPG.21bf5d1b3c156624989...@news.netcologne.de>, > >> Dietmar Braun <spam2007-09...@arath.org> wrote: > >> > >> > >> > >> > >> > >>> Hi, > >>> I am quite new to Solaris10 and ZFS and I want to change /var from UFS > >>> to ZFS. > >>> What I did: > >>> ufsdump -0f /export/var.dump /var > >>> umount -f /var > >>> zpool create -f -m /var var c0t2d0s4 > >>> cd /var > >>> ufsrestore rvf /export/var.dump > >>> Now after removing the /var mount point from /etc/vfstab and rebooting, > >>> no /var is mounted at all - therefore the system doesn't come up > >>> correctly. > >>> Relating to svcs -x and some console errors, I got the following hints: > >>> "set mountpoint=/var" to automount, or: > >>> "set mountpoint=legacy" and set a proper entry in /etc/vfstab > >>> None of these worked. Can you give me any help? How has the /etc/vfstab > >>> entry to look like? What am I missing? > >>> Thanks in advance, > >>> Dietmar > >> AFAIK, none of the boot disk which contains the running system can be > >> ZFS currently. For now put your data on ZFS and keep the system on UFS. > >> > >> -- > >> DeeDee, don't press that button! DeeDee! NO! Dee...- Hide quoted text - > >> > >> - Show quoted text - > > > > Michael is right. The UFS reader in the Solaris bootstrap code cannot > > read ZFS yet. That may change in the near future. > > But that logic should mean that / MUST be UFS but /var COULD be ZFS... > > Back in the day before UFS logging, /var was the filesystem most likely > to be corrupted during a power cut (and so a strong argument for having > it on its own disk slice); logging almost completely fixed that but ZFS > would make it even better. > > Pete. Except that if /var is tmpfs, it's created when the system is booted. If /var is a filesystem that mounts when the system boots as part of the OS, it must be UFS. If you doubt or want to quibble, try it and report back what you find. But AFAIK, it won't work currently. -- DeeDee, don't press that button! DeeDee! NO! Dee...

On Dec 4, 1:49 pm, Dietmar Braun <spam2007-09...@arath.org> wrote: > Hi, > > I am quite new to Solaris10 and ZFS and I want to change /var from UFS > to ZFS. > > What I did: > > ufsdump -0f /export/var.dump /var > umount -f /var > zpool create -f -m /var var c0t2d0s4 > cd /var > ufsrestore rvf /export/var.dump > > Now after removing the /var mount point from /etc/vfstab and rebooting, > no /var is mounted at all - therefore the system doesn't come up > correctly. > > Relating to svcs -x and some console errors, I got the following hints: > "set mountpoint=/var" to automount, or: > "set mountpoint=legacy" and set a proper entry in /etc/vfstab > > None of these worked. Can you give me any help? How has the /etc/vfstab > entry to look like? What am I missing? > > Thanks in advance, > Dietmar Solaris or OpenSolaris? Sparc or x86?

On Dec 5, 1:09 am, Peter Bunclark <p...@ast.cam.ac.uk> wrote: > Gorkhan wrote: > > On Dec 4, 6:11 pm, Michael Vilain <vil...@NOspamcop.net> wrote: > >> In article <MPG.21bf5d1b3c156624989...@news.netcologne.de>, > >> Dietmar Braun <spam2007-09...@arath.org> wrote: > > >>> Hi, > >>> I am quite new to Solaris10 and ZFS and I want to change /var from UFS > >>> to ZFS. > >>> What I did: > >>> ufsdump -0f /export/var.dump /var > >>> umount -f /var > >>> zpool create -f -m /var var c0t2d0s4 > >>> cd /var > >>> ufsrestore rvf /export/var.dump > >>> Now after removing the /var mount point from /etc/vfstab and rebooting, > >>> no /var is mounted at all - therefore the system doesn't come up > >>> correctly. > >>> Relating to svcs -x and some console errors, I got the following hints: > >>> "set mountpoint=/var" to automount, or: > >>> "set mountpoint=legacy" and set a proper entry in /etc/vfstab > >>> None of these worked. Can you give me any help? How has the /etc/vfstab > >>> entry to look like? What am I missing? > >>> Thanks in advance, > >>> Dietmar > >> AFAIK, none of the boot disk which contains the running system can be > >> ZFS currently. For now put your data on ZFS and keep the system on UFS. > > >> -- > >> DeeDee, don't press that button! DeeDee! NO! Dee...- Hide quoted text - > > >> - Show quoted text - > > > Michael is right. The UFS reader in the Solaris bootstrap code cannot > > read ZFS yet. That may change in the near future. > > But that logic should mean that / MUST be UFS but /var COULD be ZFS... > > Back in the day before UFS logging, /var was the filesystem most likely > to be corrupted during a power cut (and so a strong argument for having > it on its own disk slice); logging almost completely fixed that but ZFS > would make it even better. > > Pete. I'm unclear on all the dependencies, but the package and install tools don't support ZFS yet so I wouldn't recommend ZFS for /var, which contains package information and other system files. We'll keep you posted on when this support is available. Cindy

cindy wrote: > On Dec 5, 1:09 am, Peter Bunclark <p...@ast.cam.ac.uk> wrote: >> Gorkhan wrote: >>> On Dec 4, 6:11 pm, Michael Vilain <vil...@NOspamcop.net> wrote: >>>> In article <MPG.21bf5d1b3c156624989...@news.netcologne.de>, >>>> Dietmar Braun <spam2007-09...@arath.org> wrote: >>>>> Hi, >>>>> I am quite new to Solaris10 and ZFS and I want to change /var from UFS >>>>> to ZFS. >>>>> What I did: >>>>> ufsdump -0f /export/var.dump /var >>>>> umount -f /var >>>>> zpool create -f -m /var var c0t2d0s4 >>>>> cd /var >>>>> ufsrestore rvf /export/var.dump >>>>> Now after removing the /var mount point from /etc/vfstab and rebooting, >>>>> no /var is mounted at all - therefore the system doesn't come up >>>>> correctly. >>>>> Relating to svcs -x and some console errors, I got the following hints: >>>>> "set mountpoint=/var" to automount, or: >>>>> "set mountpoint=legacy" and set a proper entry in /etc/vfstab >>>>> None of these worked. Can you give me any help? How has the /etc/vfstab >>>>> entry to look like? What am I missing? >>>>> Thanks in advance, >>>>> Dietmar >>>> AFAIK, none of the boot disk which contains the running system can be >>>> ZFS currently. For now put your data on ZFS and keep the system on UFS. >>>> -- >>>> DeeDee, don't press that button! DeeDee! NO! Dee...- Hide quoted text - >>>> - Show quoted text - >>> Michael is right. The UFS reader in the Solaris bootstrap code cannot >>> read ZFS yet. That may change in the near future. >> But that logic should mean that / MUST be UFS but /var COULD be ZFS... >> >> Back in the day before UFS logging, /var was the filesystem most likely >> to be corrupted during a power cut (and so a strong argument for having >> it on its own disk slice); logging almost completely fixed that but ZFS >> would make it even better. >> >> Pete. > > I'm unclear on all the dependencies, but the package and install tools > don't support ZFS yet > so I wouldn't recommend ZFS for /var, which contains package > information and other system > files. > Just to follow up on what Cindy said, we do not support upgrading or patching a system which uses ZFS for parts of the file system where the OS is located, and that includes /var. Even once we add support for using ZFS for those file systems, we will not support mixed installations where part of the OS is on UFS and part on ZFS. Dave

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