Re: ZFS on root - almost there

[Roy Marples <roy%marples.name@localhost>]

On 22/02/2020 19:06, Chavdar Ivanov wrote:
> On Sat, 22 Feb 2020 at 18:03, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
> > On Sat, 22 Feb 2020 at 17:03, Roy Marples <roy%marples.name@localhost> wrote:
> > > On 22/02/2020 16:56, Chavdar Ivanov wrote:
> > > > Surely I have missed and/or misuderstood some of the above, but I am getting:
> > > > ...
> > > > Starting ZFS on root boot strapper
> > > > Copying needed kernel modules from NAME=boot:/stand/amd64/9.99.47/modules
> > > > mount: no match for 'boot': No such process
> > > > /mnt//stand/amd64/9.99.47/modules/zfs/solaris.kmod not found!
> > > > /mnt//stand/amd64/9.99.47/modules/zfs/zfs.kmod not found!
> > > > umount: /mnt: not currently mounted
> > > >
> > > > Importing rpool, mounting and pivoting
> > > > internal error: failed to initialize ZFS library
> > > > ....
> > > >
> > > > It seems it tries to mount the small ufs root on /mnt using
> > > > 'NAME=boot' label, but the label created by the standard installed is
> > > > some GUID.
> > >
> > > Wups!
> > > I missed an instruction step to ensure the label of the FFS partiton is boot.
> > > gpt label -i 1 -l boot wd0
> > > Replace 1 with the partition index and wd0 with the device.
> >
> > It worked; the only problem I am still having is adding swap; both for
> > a zvol and a gpt partition I get:
> >
> > ...
> >
> > nzfs# swapctl -a /dev/zvol/dsk/rpool/SWAP
> > swapctl: /dev/zvol/dsk/rpool/SWAP: Device not configured
> > nzfs# swapctl -a /dev/dk5
> > swapctl: /dev/dk5: Device not configured
> >
> > Could be something I've screwed during the installation, but can't
> > figure it out.
>
> The next problem is that one can't load any modules; is this by design
> or I have again made some mistake? Only the two modules prior to
> pivoting are seen - solaris and zfs; after that one gets, e.g.:
>
> ➜ ~ ls -l /stand/amd64/9.99.47/modules/dtrace/dtrace.kmod
> -r--r--r-- 1 root wheel 320120 Feb 20 10:19
> /stand/amd64/9.99.47/modules/dtrace/dtrace.kmod
> ➜ ~ modload dtrace
> modload: dtrace: No such file or directory
> ➜ ~ uname -a
> NetBSD nzfs 9.99.47 NetBSD 9.99.47 (GENERIC) #10: Sat Feb 22 14:18:50
> GMT 2020 sysbuild@ymir:/home/sysbuild/amd64/obj/home/sysbuild/src/sys/arch/amd64/c
> ompile/GENERIC amd64
>
> ....

Does this patch help?

Roy

Index: zfsroot.rc
===================================================================
RCS file: /cvsroot/src/distrib/common/zfsroot.rc,v
retrieving revision 1.1
diff -u -p -r1.1 zfsroot.rc
--- zfsroot.rc  22 Feb 2020 09:53:47 -0000      1.1
+++ zfsroot.rc  22 Feb 2020 19:30:43 -0000
@@ -51,6 +51,13 @@ done
 /sbin/umount "$modmnt"
 echo

+# Point the modulepath to /altroot
+mpath="$(sysctl -n kern.module.path)"
+case "$mpath" in
+/altroot/\*)   ;;
+*)             sysctl -w kern.module.path="/altroot/$mpath";;
+esac
+
 echo "Importing $rpool, mounting and pivoting"
 # If we can mount the ZFS root partition to /altroot
 # then chroot to it and start /etc/rc