Package: partman-zfs
Version: 42
Severity: grave
Tags: d-i
Justification: renders package unusable for ZFS-based install
(which is probably the reason someone is trying Debian/kFreeBSD .. to
use ZFS)
Dear Maintainer,
Tried the 2015-01-12 nightly mini.iso Jessie image. In the partition
setup via "expert" install, selected all disks to use with ZFS --
partitioned 3 drives into three partitions (see below for scheme) --
then proceeded to create two ZFS pools from these, a "b" pool from
partition 1 as a mirror across three drives, then a "z" pool from
partition 2 as raidz across three drives. It happily did all this,
installed the base system, etc...
--
root@bear:~# parted /dev/da0
GNU Parted 3.2
Using /dev/da0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: VMware Virtual disk (scsi)
Disk /dev/da0: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
3 17.4kB 1049kB 1031kB bios_grub
1 1049kB 512MB 511MB
2 512MB 42.9GB 42.4GB zfs
(parted)
--
But installing Grub failed with "unknown filesystem". In
troubleshooting the issue, it seems grub2 (version currently is
2.02~beta2-19) does not recognize the "feature@lz4_compress" option (and
had been previously reported) of the ZFS pools that kFreeBSD kernel 10.1
creates. And there's no way to disable it once the pool is created.
What I ended up doing is recreating everything again, this time
interrupting and adding the "-d" flag to the pool creation command (done
manually) to leave all the feature@* options disabled for building the
system.
This worked. Installation of Grub as the boot loader was successful and
the system booted using /boot (and /lib/modules) as volumes on the "b"
pool, which is a simple ZFS mirror.
Please consider adding the "-d" flag in partman-zfs for Jessie, i.e.,
# zpool create -d "pool" <dev-spec>
And then perhaps turning on feature@ flags that are known to work with
grub for booting.
Here's what my pools look like right now and all is well:
--
root@bear:~# zpool status
pool: b
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not
support
the features. See zpool-features(7) for details.
scan: none requested
config:
NAME STATE READ WRITE CKSUM
b ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
da0p1 ONLINE 0 0 0
da1p1 ONLINE 0 0 0
da2p1 ONLINE 0 0 0
errors: No known data errors
pool: z
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not
support
the features. See zpool-features(7) for details.
scan: none requested
config:
NAME STATE READ WRITE CKSUM
z ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
da0p2 ONLINE 0 0 0
da1p2 ONLINE 0 0 0
da2p2 ONLINE 0 0 0
errors: No known data errors
root@bear:~# zpool get all b
NAME PROPERTY VALUE SOURCE
b size 480M -
b capacity 12% -
b altroot - default
b health ONLINE -
b guid 13665561835741433528 default
b version - default
b bootfs - default
b delegation on default
b autoreplace off default
b cachefile - default
b failmode wait default
b listsnapshots off default
b autoexpand off default
b dedupditto 0 default
b dedupratio 1.00x -
b free 420M -
b allocated 60.2M -
b readonly off -
b comment - default
b expandsize 0 -
b freeing 0 default
b fragmentation - -
b leaked 0 default
b feature@async_destroy disabled local
b feature@empty_bpobj disabled local
b feature@lz4_compress disabled local
b feature@multi_vdev_crash_dump disabled local
b feature@spacemap_histogram disabled local
b feature@enabled_txg disabled local
b feature@hole_birth disabled local
b feature@extensible_dataset disabled local
b feature@embedded_data disabled local
b feature@bookmarks disabled local
b feature@filesystem_limits disabled local
root@bear:~# df -h
Filesystem Size Used Avail Use% Mounted on
z/root 77G 2.1G 75G 3% /
linprocfs 4.0K 4.0K 0 100% /proc
fdescfs 1.0K 1.0K 0 100% /dev/fd
tmpfs 4.8G 516K 4.8G 1% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 1.6G 4.0K 1.6G 1% /run/shm
b/boot 406M 18M 388M 5% /boot
b/modules 431M 43M 388M 10% /lib/modules
Regards,
Mike
--
Michael Milligan -> mi...@acmeps.com
Acme Professional Services LLC
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