On Sun, Mar 11, 2018 at 09:46:24PM +0300, Anatoly Mayorov wrote: > Hi, > > I installed TrueOS and it partitioned the whole disk as a zfs pool. Then, > while installing Archlinux I used parted to create a new gpt table with > fat32, ext4 and btrfs partitions. Archlinux worked well. But Gparted > reported, that the whole disk still was formatted to ZFS. I reproduced the > same scenario on a virtual machine - the same result. > It turned out that there remained signatures from ZFS. > Here is what blkid and wipes reported: > > root@debian:~# blkid /dev/sda > /dev/sda: TYPE="zfs_member" PTUUID="f80e1ce2-028f-4124-bdef-ce5a61ad4e72" > PTTYPE="gpt" > > root@debian:~# wipefs /dev/sda > offset type > ---------------------------------------------------------------- > 0x200 gpt [partition table] > > 0x7f000 zfs_member [filesystem] > > I had to manually erase all old signatures with wipefs to make Gparted see my > partitions. > > I'm attaching a screenshot of the virtual machine where I reproduced the > scenario.
parted doesn't wipe signatures. Use something like wipefs for that :) This can also be a problem with RAID and LVM and recreating partitions with the same sizes, you'll sometimes see old ones show up. So when re-using a disk it's best to also wipefs it first. -- Brian C. Lane (PST8PDT)
