Re: ZFS booting without partitions (was: ZFS boot on zfs mirror)

2009-06-01 Thread Alberto Villa
On Thu, May 28, 2009 at 3:58 PM, Lorenzo Perone
lopez.on.the.li...@yellowspace.net wrote:
 the result is, when choosing the disk with the zfs boot
 sectors in it (in my case F5, which goes to ad6), the kernel
 is not found. the console shows:

 forth not found
 definitions not found
 only not found
 (the above repeated several times)

 can't load 'kernel'

 and I get thrown to the loader prompt.
 lsdev does not show any ZFS devices.

same here on 7-stable (csupped yesterday)
i've followed the same steps, but i've used gpt as explained in the
first mail. the same exact steps worked perfectly on 8-current in
virtualbox
-- 
Alberto Villa villa.albe...@gmail.com
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Re: ZFS booting without partitions (was: ZFS boot on zfs mirror)

2009-06-01 Thread Lorenzo Perone

On 31.05.2009, at 09:18, Adam McDougall wrote:


I encountered the same symptoms today on both a 32bit and 64bit
brand new install using gptzfsboot.  It works for me when I use
a copy of loader from an 8-current box with zfs support compiled in.
I haven't looked into it much yet but it might help you.  If you
want, you can try the loader I am using from:
http://www.egr.msu.edu/~mcdouga9/loader



Hi, thanx a lot for this hint. Meanwhile, I was almost giving up,
and had a try with ZFS on Root with GPT partitioning, using
gptzfsboot as the bootloader, a UFS root partition as boot
partition (gmirrored to both disks), and the rest (inclusive of a
zvol for swap!) on ZFS. This worked perfectly on the first try.
(if anyone is interested, I can post my commented command
series for that, but it's just a mix of the available tutorials on
the web..).

I'll be glad do give the zfs-only solution a new try.
Had the same impression, that the loader was involved in the
problem, but had no env at hand to build a -CURRENT right
away... (I did, in fact, repeat the dd-steps a zfsboot
bootloader from a recent 8- snapshot iso... with the results
being the same as before...).

Sidenote: I encountered a few panics when using rsync with the
HAX flags enabled (rsync -avxHAX from UFS to ZFS).
I'll try to figure out which one of the flags caused it...
(Hard links, ACLs, or eXtended attributes..).
Never had even the slightest problem with rsync -avx.

Thanx for posting me your loader,  I'll try with this tomorrow night!
(any hint, btw, on why the one in -STABLE seems to be
broken, or whether it has actually been fixed by now?)

Regards,
Lorenzo


(...)


2009/5/28 Lorenzo Perone:

Hi,

I tried hard... but without success ;(

the result is, when choosing the disk with the zfs boot
sectors in it (in my case F5, which goes to ad6), the kernel
is not found. the console shows:

forth not found
definitions not found
only not found
(the above repeated several times)

can't load 'kernel'

and I get thrown to the loader prompt.
lsdev does not show any ZFS devices.

(...)



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Re: ZFS booting without partitions (was: ZFS boot on zfs mirror)

2009-05-31 Thread Adam McDougall
I encountered the same symptoms today on both a 32bit and 64bit
brand new install using gptzfsboot.  It works for me when I use
a copy of loader from an 8-current box with zfs support compiled in.
I haven't looked into it much yet but it might help you.  If you
want, you can try the loader I am using from:
http://www.egr.msu.edu/~mcdouga9/loader

On Thu, May 28, 2009 at 10:41:42PM +0200, Lorenzo Perone wrote:

  
  On 28.05.2009, at 21:46, Mickael MAILLOT wrote:
  
   hi,
  
   did you erase gmirror meta ? (on the last sector)
   with: gmirror clear ad6
  
  ohps I had forgotten that. just did it (in single user mode),
  but it  didn't help :( Shall I repeat any of the other steps
  after clearing gmirror meta?
  
  thanx a lot for your help...
  
  Lorenzo
  
   2009/5/28 Lorenzo Perone lopez.on.the.li...@yellowspace.net:
   Hi,
  
   I tried hard... but without success ;(
  
   the result is, when choosing the disk with the zfs boot
   sectors in it (in my case F5, which goes to ad6), the kernel
   is not found. the console shows:
  
   forth not found
   definitions not found
   only not found
   (the above repeated several times)
  
   can't load 'kernel'
  
   and I get thrown to the loader prompt.
   lsdev does not show any ZFS devices.
  
   Strange thing: if I boot from the other disk, F1, which is my
   ad4 containing the normal ufs system I used to make up the other
   one, and escape to the loader prompt, lsdev actually sees the
   zpool which is on the other disk, and shows:
   zfs0: tank
  
   I tried booting with boot zfs:tank or zfs:tank:/boot/kernel/kernel,
   but there I get the panic: free: guard1 fail message.
   (would boot zfs:tank:/boot/kernel/kernel be correct, anyways?)
  
   Sure I'm doing something wrong, but what...? Is it a problem that
   the pool is made out of the second disk only (ad6)?
  
   Here are my details (note: latest stable and biosdisk.c merged
   with changes shown in r185095. no problems in buildworld/kernel):
   ()
  
  
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Re: ZFS booting without partitions (was: ZFS boot on zfs mirror)

2009-05-31 Thread Enrico M.
On Thursday 28 May 2009 15:58:04 Lorenzo Perone wrote:
 Hi,

 I tried hard... but without success ;(

 the result is, when choosing the disk with the zfs boot
 sectors in it (in my case F5, which goes to ad6), the kernel
 is not found. the console shows:

 forth not found
 definitions not found
 only not found
 (the above repeated several times)

 can't load 'kernel'

 and I get thrown to the loader prompt.
 lsdev does not show any ZFS devices.

 Strange thing: if I boot from the other disk, F1, which is my
 ad4 containing the normal ufs system I used to make up the other
 one, and escape to the loader prompt, lsdev actually sees the
 zpool which is on the other disk, and shows:
 zfs0: tank

 I tried booting with boot zfs:tank or zfs:tank:/boot/kernel/kernel,
 but there I get the panic: free: guard1 fail message.
 (would boot zfs:tank:/boot/kernel/kernel be correct, anyways?)

 Sure I'm doing something wrong, but what...? Is it a problem that
 the pool is made out of the second disk only (ad6)?

 Here are my details (note: latest stable and biosdisk.c merged
 with changes shown in r185095. no problems in buildworld/kernel):

 snip

 Machine: p4 4GHz 4 GB RAM (i386)

 Note: the pool has actually a different name (heidi
 instead of tank, if this can be of any relevance...),
 just using tank here as it's one of the conventions...

 mount (just to show my starting situation)

 /dev/mirror/gm0s1a on / (ufs, local)
 devfs on /dev (devfs, local)
 /dev/mirror/gm0s1e on /tmp (ufs, local, soft-updates)
 /dev/mirror/gm0s1f on /usr (ufs, local, soft-updates)
 /dev/mirror/gm0s1d on /var (ufs, local, soft-updates)

 gmirror status
NameStatus  Components
 mirror/gm0  DEGRADED  ad4
 (ad6 used to be the second disk...)

 echo 'LOADER_ZFS_SUPPORT=yes'  /etc/make.conf

 cd /usr/src
 make buildworld  make buildkernel KERNCONF=HEIDI
 make installkernel KERNCONF=HEIDI
 mergemaster
 make installworld
 shutdown -r now

 dd if=/dev/zero of=/dev/ad6 bs=512 count=32

 zpool create tank ad6
 zfs create tank/usr
 zfs create tank/var
 zfs create -V 4gb tank/swap
 zfs set org.freebsd:swap=on tank/swap
 zpool set bootfs=tank tank

 rsync -avx / /tank
 rsync -avx /usr/ /tank/usr
 rsync -avx /var/ /tank/var
 cd /usr/src
 make installkernel KERNCONF=HEIDI DESTDIR=/tank

 zpool export tank

 dd if=/boot/zfsboot of=/dev/ad6 bs=512 count=1
 dd if=/boot/zfsboot of=/dev/ad6 bs=512 skip=1 seek=1024

 zpool import tank

 zfs set mountpoint=legacy tank
 zfs set mountpoint=/usr tank/usr
 zfs set mountpoint=/var tank/var

 shutdown -r now ...

 at the 'mbr prompt' I pressed F5 (the second disk, ad6)
 .. as written above, loader gets loaded (at this stage
 I suppose it's the stuff dd't after block 1024?),
 but kernel not found.

 /usr/src/sys/i386/conf/HEIDI:
 (among other things...):
 options KVA_PAGES=512

 (/tank)/boot/loader.conf:
 vm.kmem_size=1024M
 vm.kmem_size_max=1024M
 vfs.zfs.arc_max=128M
 vfs.zfs.vdev.cache.size=8M
 vfs.root.mountfrom=zfs:tank

 (/tank)/etc/fstab:
 # Device  Mountpoint  FStype  Options DumpPass#
 tank  /   zfs rw  0   0
 /dev/acd0 /cdrom  cd9660  ro,noauto   0   0

 /snap

 any help is welcome... don't know where to go from here right now.

 BTW: I can't stop thanking the team for the incredible
 pace at which bugs are fixed these days!


 Regards,

 Lorenzo

 On 26.05.2009, at 18:42, George Hartzell wrote:
  Andriy Gapon writes:
  on 26/05/2009 19:21 George Hartzell said the following:
  Dmitry Morozovsky writes:
  On Tue, 26 May 2009, Mickael MAILLOT wrote:
 
  MM Hi,
  MM
  MM i prefere use zfsboot boot sector, an example is better than
  a long talk:
  MM
  MM $ zpool create tank mirror ad4 ad6
  MM $ zpool export tank
  MM $ dd if=/boot/zfsboot of=/dev/ad4 bs=512 count=1
  MM $ dd if=/boot/zfsboot of=/dev/ad6 bs=512 count=1
  MM $ dd if=/boot/zfsboot of=/dev/ad4 bs=512 skeep=1  seek=1024
  MM $ dd if=/boot/zfsboot of=/dev/ad6 bs=512 skeep=1  seek=1024
 
  s/skeep/skip/ ? ;-)
 
  What is the reason for copying zfsboot one bit at a time, as opposed
  to
 
   dd if=/boot/zfsboot of=/dev/ad4 bs=512 count=2
 
  seek=1024 for the second part? and no 'count=1' for it? :-)
 
  [Just guessing] Apparently the first block of zfsboot is some form
  of MBR and the
  rest is zfs-specific code that goes to magical sector 1024.
 
  Ok, I managed to read the argument to seek as one block, apparently
  my coffee hasn't hit yet.
 
  I'm still confused about the two parts of zfsboot and what's magical
  about seeking to 1024.
 
  g.

I obtained the same result with FreeBSD 7 stable.
I installed first a new system in a scsi disk with ufs
I put LOADER_ZFS_SUPPORT=yes in /etc/make.conf, updated src and made 
buildworld without trouble.
I built a new kernel, installed it and installed new world.
Until here, that's all right

Then, I tried with a PATA hard drive, ad2
I resetted the mbr and the partition table with dd if=/dev/zero 

Re: ZFS booting without partitions (was: ZFS boot on zfs mirror)

2009-05-28 Thread Mickael MAILLOT
hi,

did you erase gmirror meta ? (on the last sector)
with: gmirror clear ad6

2009/5/28 Lorenzo Perone lopez.on.the.li...@yellowspace.net:
 Hi,

 I tried hard... but without success ;(

 the result is, when choosing the disk with the zfs boot
 sectors in it (in my case F5, which goes to ad6), the kernel
 is not found. the console shows:

 forth not found
 definitions not found
 only not found
 (the above repeated several times)

 can't load 'kernel'

 and I get thrown to the loader prompt.
 lsdev does not show any ZFS devices.

 Strange thing: if I boot from the other disk, F1, which is my
 ad4 containing the normal ufs system I used to make up the other
 one, and escape to the loader prompt, lsdev actually sees the
 zpool which is on the other disk, and shows:
 zfs0: tank

 I tried booting with boot zfs:tank or zfs:tank:/boot/kernel/kernel,
 but there I get the panic: free: guard1 fail message.
 (would boot zfs:tank:/boot/kernel/kernel be correct, anyways?)

 Sure I'm doing something wrong, but what...? Is it a problem that
 the pool is made out of the second disk only (ad6)?

 Here are my details (note: latest stable and biosdisk.c merged
 with changes shown in r185095. no problems in buildworld/kernel):

 snip

 Machine: p4 4GHz 4 GB RAM (i386)

 Note: the pool has actually a different name (heidi
 instead of tank, if this can be of any relevance...),
 just using tank here as it's one of the conventions...

 mount (just to show my starting situation)

 /dev/mirror/gm0s1a on / (ufs, local)
 devfs on /dev (devfs, local)
 /dev/mirror/gm0s1e on /tmp (ufs, local, soft-updates)
 /dev/mirror/gm0s1f on /usr (ufs, local, soft-updates)
 /dev/mirror/gm0s1d on /var (ufs, local, soft-updates)

 gmirror status
      Name    Status  Components
 mirror/gm0  DEGRADED  ad4
 (ad6 used to be the second disk...)

 echo 'LOADER_ZFS_SUPPORT=yes'  /etc/make.conf

 cd /usr/src
 make buildworld  make buildkernel KERNCONF=HEIDI
 make installkernel KERNCONF=HEIDI
 mergemaster
 make installworld
 shutdown -r now

 dd if=/dev/zero of=/dev/ad6 bs=512 count=32

 zpool create tank ad6
 zfs create tank/usr
 zfs create tank/var
 zfs create -V 4gb tank/swap
 zfs set org.freebsd:swap=on tank/swap
 zpool set bootfs=tank tank

 rsync -avx / /tank
 rsync -avx /usr/ /tank/usr
 rsync -avx /var/ /tank/var
 cd /usr/src
 make installkernel KERNCONF=HEIDI DESTDIR=/tank

 zpool export tank

 dd if=/boot/zfsboot of=/dev/ad6 bs=512 count=1
 dd if=/boot/zfsboot of=/dev/ad6 bs=512 skip=1 seek=1024

 zpool import tank

 zfs set mountpoint=legacy tank
 zfs set mountpoint=/usr tank/usr
 zfs set mountpoint=/var tank/var

 shutdown -r now ...

 at the 'mbr prompt' I pressed F5 (the second disk, ad6)
 .. as written above, loader gets loaded (at this stage
 I suppose it's the stuff dd't after block 1024?),
 but kernel not found.

 /usr/src/sys/i386/conf/HEIDI:
 (among other things...):
 options KVA_PAGES=512

 (/tank)/boot/loader.conf:
 vm.kmem_size=1024M
 vm.kmem_size_max=1024M
 vfs.zfs.arc_max=128M
 vfs.zfs.vdev.cache.size=8M
 vfs.root.mountfrom=zfs:tank

 (/tank)/etc/fstab:
 # Device                Mountpoint      FStype  Options         Dump
  Pass#
 tank            /               zfs     rw              0       0
 /dev/acd0               /cdrom          cd9660  ro,noauto       0       0

 /snap

 any help is welcome... don't know where to go from here right now.

 BTW: I can't stop thanking the team for the incredible
 pace at which bugs are fixed these days!


 Regards,

 Lorenzo



 On 26.05.2009, at 18:42, George Hartzell wrote:

 Andriy Gapon writes:

 on 26/05/2009 19:21 George Hartzell said the following:

 Dmitry Morozovsky writes:

 On Tue, 26 May 2009, Mickael MAILLOT wrote:

 MM Hi,
 MM
 MM i prefere use zfsboot boot sector, an example is better than a long
 talk:
 MM
 MM $ zpool create tank mirror ad4 ad6
 MM $ zpool export tank
 MM $ dd if=/boot/zfsboot of=/dev/ad4 bs=512 count=1
 MM $ dd if=/boot/zfsboot of=/dev/ad6 bs=512 count=1
 MM $ dd if=/boot/zfsboot of=/dev/ad4 bs=512 skeep=1  seek=1024
 MM $ dd if=/boot/zfsboot of=/dev/ad6 bs=512 skeep=1  seek=1024

 s/skeep/skip/ ? ;-)

 What is the reason for copying zfsboot one bit at a time, as opposed
 to

  dd if=/boot/zfsboot of=/dev/ad4 bs=512 count=2

 seek=1024 for the second part? and no 'count=1' for it? :-)

 [Just guessing] Apparently the first block of zfsboot is some form of MBR
 and the
 rest is zfs-specific code that goes to magical sector 1024.

 Ok, I managed to read the argument to seek as one block, apparently
 my coffee hasn't hit yet.

 I'm still confused about the two parts of zfsboot and what's magical
 about seeking to 1024.

 g.

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Re: ZFS booting without partitions (was: ZFS boot on zfs mirror)

2009-05-28 Thread Lorenzo Perone


On 28.05.2009, at 21:46, Mickael MAILLOT wrote:


hi,

did you erase gmirror meta ? (on the last sector)
with: gmirror clear ad6


ohps I had forgotten that. just did it (in single user mode),
but it  didn't help :( Shall I repeat any of the other steps
after clearing gmirror meta?

thanx a lot for your help...

Lorenzo


2009/5/28 Lorenzo Perone lopez.on.the.li...@yellowspace.net:

Hi,

I tried hard... but without success ;(

the result is, when choosing the disk with the zfs boot
sectors in it (in my case F5, which goes to ad6), the kernel
is not found. the console shows:

forth not found
definitions not found
only not found
(the above repeated several times)

can't load 'kernel'

and I get thrown to the loader prompt.
lsdev does not show any ZFS devices.

Strange thing: if I boot from the other disk, F1, which is my
ad4 containing the normal ufs system I used to make up the other
one, and escape to the loader prompt, lsdev actually sees the
zpool which is on the other disk, and shows:
zfs0: tank

I tried booting with boot zfs:tank or zfs:tank:/boot/kernel/kernel,
but there I get the panic: free: guard1 fail message.
(would boot zfs:tank:/boot/kernel/kernel be correct, anyways?)

Sure I'm doing something wrong, but what...? Is it a problem that
the pool is made out of the second disk only (ad6)?

Here are my details (note: latest stable and biosdisk.c merged
with changes shown in r185095. no problems in buildworld/kernel):
()



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