'm running into an issue I don;t understand. Short description: installing Debian Buster to ZFS root and using LUKS encryption. Long description: This is esecuting in a chroot in a VM running the Live USB image for Debian Buster and following the instructions at https://github.com/zfsonlinux/zfs/wiki/Debian-Buster-Root-on-ZFS. The issue I'm running into is that `blkid` reports no information for the EFI partition. The partition is created using wipefs -a /dev/disk/by-id/$DRIVE_ID # useful if the drive already had ZFS pools sgdisk --zap-all /dev/disk/by-id/$DRIVE_ID # 2.2 Partition your disk # Run this for UEFI booting (for use now or in the future): sgdisk -n2:1M:+1024M -t2:EF00 /dev/disk/by-id/$DRIVE_ID export EFI_PART=/dev/disk/by-id/${DRIVE_ID}-part2 and formatted using mkdosfs -F 32 -s 1 -n EFI ${EFI_PART} The result is root@debian:/# blkid /dev/sda2 root@debian:/# root@debian:/# fdisk /dev/sda Welcome to fdisk (util-linux 2.33.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sda: 8 GiB, 8589934592 bytes, 16777216 sectors Disk model: VBOX HARDDISK Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: E560C0D8-7453-400C-8B08-C4A4E7741BF8 Device Start End Sectors Size Type /dev/sda2 2048 2099199 2097152 1G EFI System /dev/sda3 2099200 4196351 2097152 1G Solaris /usr & Apple ZFS /dev/sda4 4196352 16777182 12580831 6G Linux filesystem Command (m for help): q root@debian:/# ls -l /dev/disk/by-id total 0 lrwxrwxrwx 1 root root 9 Sep 3 04:09 ata-VBOX_CD-ROM_VB2-01700376 -> ../../sr0 lrwxrwxrwx 1 root root 9 Sep 3 09:49 ata-VBOX_HARDDISK_VBed34bc29-2968e615 -> ../../sda lrwxrwxrwx 1 root root 10 Sep 3 09:49 ata-VBOX_HARDDISK_VBed34bc29-2968e615-part2 -> ../../sda2 lrwxrwxrwx 1 root root 10 Sep 3 09:49 ata-VBOX_HARDDISK_VBed34bc29-2968e615-part3 -> ../../sda3 lrwxrwxrwx 1 root root 10 Sep 3 09:49 ata-VBOX_HARDDISK_VBed34bc29-2968e615-part4 -> ../../sda4 lrwxrwxrwx 1 root root 10 Sep 3 09:19 dm-name-luks1 -> ../../dm-0 lrwxrwxrwx 1 root root 10 Sep 3 09:19 dm-uuid-CRYPT-LUKS2-e21badad6d6b4db59d95d99d1e4fc9b1-luks1 -> ../../dm-0 root@debian:/# blkid /dev/sda4: UUID="e21badad-6d6b-4db5-9d95-d99d1e4fc9b1" TYPE="crypto_LUKS" PARTUUID="e0afc765-239f-4b3d-9afa-971a64801b73" /dev/sda3: LABEL="bpool" UUID="3469266818014148396" UUID_SUB="48979436116215382" TYPE="zfs_member" PARTUUID="3c00e355-ee3a-430c-aa58-1478d4f00e36" /dev/sr0: UUID="2019-07-06-12-12-54-00" LABEL="d-live nf 10.0.0 gn amd64" TYPE="iso9660" PTUUID="720eaf06" PTTYPE="dos" /dev/loop0: TYPE="squashfs" /dev/mapper/luks1: LABEL="rpool" UUID="15828100763890880025" UUID_SUB="8162042683520056023" TYPE="zfs_member" root@debian:/# ls -l /dev/disk/by-uuid/ total 0 lrwxrwxrwx 1 root root 9 Sep 3 04:09 2019-07-06-12-12-54-00 -> ../../sr0 lrwxrwxrwx 1 root root 10 Sep 3 09:49 3469266818014148396 -> ../../sda3 lrwxrwxrwx 1 root root 10 Sep 3 09:49 e21badad-6d6b-4db5-9d95-d99d1e4fc9b1 -> ../../sda4 root@debian:/# Versions installed are root@debian:/# apt-cache policy util-linux dosfstools util-linux: Installed: 2.33.1-0.1 Candidate: 2.33.1-0.1 Version table: *** 2.33.1-0.1 500 500 http://deb.debian.org/debian buster/main amd64 Packages 100 /var/lib/dpkg/status dosfstools: Installed: 4.1-2 Candidate: 4.1-2 Version table: *** 4.1-2 500 500 http://deb.debian.org/debian buster/main amd64 Packages 100 /var/lib/dpkg/status root@debian:/# When I don't format anything using LUKS encryption, I get the expected result. I think I can work around this but if it is a bug, it seems like I should report. If it is something I'm doing wrong, it is an opportunity to learn something. I did some searching and only found issues where Windows and Linux were both installed and there was some confusion with the partitioning. I'm not sure where to go next with this and appreciate any suggestions. Thanks! -- '03 BMW F650CS - hers '98 Dakar K12RS - "BABY K" grew up. '93 R100R w/ Velorex 700 (MBD starts...) '95 Miata - "OUR LC" polish visor: apply squashed bugs, rinse, repeat Beautiful Sunny Winfield, Illinois