Hi, What the version of mdadm in the test? Could you please help get the output of: mdadm -E /dev/sd[bcde]1 Thanks, Song On Wed, Nov 8, 2017 at 1:37 AM, Tobx <net@xxxxxxx> wrote: > Hello, > > I try to get a RAID 5 array to assemble at boot with mdadm: > > # mdadm --create /dev/md/test --level=5 --raid-devices=3 --write-journal=/dev/sde1 /dev/sd[bcd]1 > mdadm: Defaulting to version 1.2 metadata > mdadm: array /dev/md/test started. > # /usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf > # update-initramfs -u -k all > update-initramfs: Generating /boot/initrd.img-4.9.0-4-amd64 > # reboot > > After the reboot: > > # mdadm --detail /dev/md/test > mdadm: cannot open /dev/md/test: No such file or directory > > This can easily be corrected with: > > # mdadm --stop /dev/md127 > mdadm: stopped /dev/md127 > # mdadm --assemble --scan > mdadm: /dev/md/test has been started with 3 drives and 1 journal. > > The same works as expected when leaving out the journal option "--write-journal=/dev/sde1". > > The same issue occurs without a mdadm.conf file: > > # rm /etc/mdadm/mdadm.conf > # update-initramfs -u -k all > update-initramfs: Generating /boot/initrd.img-4.9.0-4-amd64 > > It does not work with the journal option, but it works without. > > Options in /etc/default/mdadm: > > AUTOCHECK=true > START_DAEMON=true > DAEMON_OPTIONS="--syslog" > VERBOSE=false > > Options in /etc/mdadm/mdadm.conf (if used): > > HOMEHOST <system> > MAILADDR root > ARRAY /dev/md/test metadata=1.2 UUID=4f0448f6:fee2638c:a1c1b547:20358980 name=debian:test > spares=1 > > I tried this with Debian Stretch (4.9.0-4), Debian Stretch (4.13.0-0) and Ubuntu 17.10 (4.13.0-16). > > I can hardly find any information about the journal option, am I missing something? > > Cheers, > Tobi-- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html