Public bug reported: I can see in the logs that systemd incrementally assembles mdadm arrays using the --incremental and --offroot options, yet the --offroot option is not documented in the mdadm manpage.
I can see it here though: https://linux.die.net/man/8/mdadm ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: mdadm 3.3-2ubuntu7.6 ProcVersionSignature: Ubuntu 4.15.0-72.81~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-72-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.21 Architecture: amd64 Date: Sun Jan 5 09:07:20 2020 InstallationDate: Installed on 2018-04-27 (617 days ago) InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) MDadmExamine.dev.sda: Error: command ['/sbin/mdadm', '-E', '/dev/sda'] failed with exit code 1: mdadm: cannot open /dev/sda: Permission denied MDadmExamine.dev.sdb: Error: command ['/sbin/mdadm', '-E', '/dev/sdb'] failed with exit code 1: mdadm: cannot open /dev/sdb: Permission denied MDadmExamine.dev.sdb1: Error: command ['/sbin/mdadm', '-E', '/dev/sdb1'] failed with exit code 1: mdadm: cannot open /dev/sdb1: Permission denied MDadmExamine.dev.sdc: Error: command ['/sbin/mdadm', '-E', '/dev/sdc'] failed with exit code 1: mdadm: cannot open /dev/sdc: Permission denied MDadmExamine.dev.sdc1: Error: command ['/sbin/mdadm', '-E', '/dev/sdc1'] failed with exit code 1: mdadm: cannot open /dev/sdc1: Permission denied MDadmExamine.dev.sdd: Error: command ['/sbin/mdadm', '-E', '/dev/sdd'] failed with exit code 1: mdadm: cannot open /dev/sdd: Permission denied MDadmExamine.dev.sde: Error: command ['/sbin/mdadm', '-E', '/dev/sde'] failed with exit code 1: mdadm: cannot open /dev/sde: Permission denied MDadmExamine.dev.sde1: Error: command ['/sbin/mdadm', '-E', '/dev/sde1'] failed with exit code 1: mdadm: cannot open /dev/sde1: Permission denied MDadmExamine.dev.sde2: Error: command ['/sbin/mdadm', '-E', '/dev/sde2'] failed with exit code 1: mdadm: cannot open /dev/sde2: Permission denied MDadmExamine.dev.sdf: Error: command ['/sbin/mdadm', '-E', '/dev/sdf'] failed with exit code 1: mdadm: cannot open /dev/sdf: Permission denied MDadmExamine.dev.sdg: Error: command ['/sbin/mdadm', '-E', '/dev/sdg'] failed with exit code 1: mdadm: cannot open /dev/sdg: Permission denied MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-72-generic root=UUID=2a39e062-c0b5-4227-90f3-8f0c9169986d ro quiet i915.alpha_support=1i fsck.repair=yes SourcePackage: mdadm UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/27/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P4.00 dmi.board.name: Z370M-ITX/ac dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP4.00:bd03/27/2019:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ370M-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. etc.blkid.tab: Error: [Errno 2] No such file or directory: '/etc/blkid.tab' ** Affects: mdadm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1858317 Title: man mdadm does not document the --offroot option To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1858317/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
