Public bug reported: Follow-up on:
https://askubuntu.com/questions/113561/how-to-modify-fix-incorrectly- detected-dmraid-fakeraid-raid-10-array I am not certain that dmraid is the cause of this error but it may be the best place to start looking for it. This issue was raised on askubuntu 7 years ago without a meaninful reaction - therefore i do not want to rely on escalation from there. ----------- (live CD) Description: Ubuntu 18.04.2 LTS Release: 18.04 ----------- dmraid: Installed: 1.0.0.rc16-8ubuntu1 Candidate: 1.0.0.rc16-8ubuntu1 Version table: *** 1.0.0.rc16-8ubuntu1 500 500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status ----------- expected to see my RAID 10 in the system ----------- RAID10 was not detected automaticaly, instead, the 4 individual drives are displayed in GParted. Attempted to add the RAID manually (dmraid -ay), dmraid recognises there is a raid, but reports incorrect size and checksum error Reconfigured RAID to RAID0 and RAID1 to test, both RAID found automatically, RAID0 has incorrect size, checksum correct in both cases ************* sdb,sdc : Seagate 2TB sdd,sde : Toshiba 2TB 3907029168 sectors each HDD ************* #dmraid -tay pdc_bagjfgcja: 0 3518828800 striped 2 128 /dev/sdb 0 /dev/sdc 0 pdc_bffcfgdcc: 0 3906898048 mirror core 2 131072 nosync 2 /dev/sdd 0 /dev/sde 0 1 handle_errors ************* #dmraid -s *** Active Set name : pdc_bagjfgcja size : 3518828800 stride : 128 type : stripe status : ok subsets: 0 devs : 2 spares : 0 *** Active Set name : pdc_bffcfgdcc size : 3906898048 stride : 128 type : mirror status : ok subsets: 0 devs : 2 spares : 0 -------------- #dmraid -n /dev/sdb /dev/sdb (pdc): 0x000 promise_id: "Promise Technology, Inc." 0x018 unknown_0: 0x20000 131072 0x01c magic_0: 0xe1e2e3e4 0x020 unknown_1: 0xdddedfe0 3722371040 0x024 magic_1: 0xd9dadbdc 0x028 unknown_2: 0xd7d8 55256 0x200 raid.flags: 0xfdfeffc0 0x204 raid.unknown_0: 0x7 7 0x205 raid.disk_number: 0 0x206 raid.channel: 0 0x207 raid.device: 0 0x208 raid.magic_0: 0xcd0602 0x20c raid.unknown_1: 0x0 0 0x210 raid.start: 0x0 0 0x214 raid.disk_secs: 3906898096 0x218 raid.unknown_3: 0xffffffff 4294967295 0x21c raid.unknown_4: 0x1 1 0x21e raid.status: 0xf 0x21f raid.type: 0x0 0x220 raid.total_disks: 2 0x221 raid.raid0_shift: 7 0x222 raid.raid0_disks: 2 0x223 raid.array_number: 0 0x224 raid.total_secs: 3518828800 0x228 raid.cylinders: 65534 0x22a raid.heads: 254 0x22b raid.sectors: 63 0x22c raid.magic_1: 0x6600602 0x230 raid.unknown_5: 0x0 0 0x234 raid.disk[0].unknown_0: 0x7 0x236 raid.disk[0].channel: 0 0x237 raid.disk[0].device: 0 0x238 raid.disk[0].magic_0: 0xcd0602 0x23c raid.disk[0].disk_number: 0 0x240 raid.disk[1].unknown_0: 0x207 0x242 raid.disk[1].channel: 1 0x243 raid.disk[1].device: 0 0x244 raid.disk[1].magic_0: 0xce0602 0x248 raid.disk[1].disk_number: 65536 0x7fc checksum: 0x87c487f9 Ok -------------- 3518828800 is 2*3906898048 with the most significant of the 33 bits ignored. Hence the assumption that a 32 bit integer is used for the number of sectors somewhere. Thank you for looking into this. Regards, Martina. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: dmraid 1.0.0.rc16-8ubuntu1 ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-15-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CasperVersion: 1.394 Date: Sun Jun 2 19:38:05 2019 LiveMediaBuild: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: dmraid UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: dmraid (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831386 Title: "fake" RAID 0 or RAID10, dmraid -tay reports incorrect size To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dmraid/+bug/1831386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
