Oracle Linux: Server Fails to Boot "md: kicking non-fresh sdxx from array!" "dracut Warning: No root device "block:/dev/mapper/root" found"
(Doc ID 2711554.1)
Last updated on SEPTEMBER 21, 2020
Applies to:Linux OS - Version Oracle Linux 6.0 and later
Oracle Linux server is not booting up after replacing system board. Seeing the following message in console logs. In this case, server has a RAID device md1 with RAID10(RAID 1+0) configuration. It has 4 devices namely sdc1, sdd1, sda2 and sdb2.
sd 0:2:0:0: [sda] Attached SCSI disk sd 0:2:1:0: [sdb] Attached SCSI disk sd 0:2:3:0: [sdd] Attached SCSI disk sd 0:2:2:0: [sdc] Attached SCSI disk md: bind<sdc1> md: bind<sdd1> md: bind<sda2> md: bind<sdb2> usb 2-1.8: New USB device found, idVendor=0430, idProduct=a4a2 usb 2-1.8: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-1.8: Product: Virtual Eth Device usb 2-1.8: Manufacturer: SunMicro dracut: Assembling MD RAID arrays md: kicking non-fresh sdb2 from array! md: unbind<sdb2> md: export_rdev(sdb2) md: kicking non-fresh sda2 from array! md: unbind<sda2> md: export_rdev(sda2) md: raid10 personality registered for level 10 md/raid10:md1: not enough operational mirrors. md: pers->run() failed ... dracut: mdadm: failed to start array /dev/md1: Input/output error dracut: Autoassembling MD Raid md: md0 stopped. md: bind<sdb1> md: bind<sda1> md: raid1 personality registered for level 1 md/raid1:md0: active with 2 out of 2 mirrors created bitmap (1 pages) for device md0 md0: bitmap initialized from disk: read 1 pages, set 0 of 32 bits md0: detected capacity change from 0 to 2147418112 md0: unknown partition table dracut: mdadm: /dev/md0 has been started with 2 drives. dracut: mdadm: Found some drive for an array that is already active: /dev/md1 dracut: mdadm: giving up. dracut: mdadm: Found some drive for an array that is already active: /dev/md1 dracut: mdadm: giving up. dracut Warning: No root device "block:/dev/mapper/vg_gateway-lv_root" found dracut Warning: LVM vg_gateway/lv_root not found dracut Warning: LVM vg_gateway/lv_swap not found
dracut Warning: Boot has failed. To debug this issue add "rdshell" to the kernel command line.
dracut Warning: Signal caught! dracut Warning: LVM vg_gateway/lv_root not found dracut Warning: LVM vg_gateway/lv_swap not found
dracut Warning: Boot has failed. To debug this issue add "rdshell" to the kernel command line. Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100
Pid: 1, comm: init Not tainted 3.8.13-118.35.2.el6uek.x86_64 #2 Call Trace: [<ffffffff815a3475>] panic+0xc4/0x1e4 [<ffffffff811277ae>] ? __perf_cgroup_move+0xe/0x20 [<ffffffff8106731c>] find_new_reaper+0x17c/0x180 [<ffffffff81067c15>] forget_original_parent+0x45/0x1d0 [<ffffffff811277a0>] ? perf_cgroup_switch+0x190/0x190 [<ffffffff81067db7>] exit_notify+0x17/0x140 [<ffffffff810697b3>] do_exit+0x223/0x490
[<ffffffff81197a23>] ? filp_close+0x63/0x90 [<ffffffff81069a75>] do_group_exit+0x55/0xd0 [<ffffffff81069b07>] sys_exit_group+0x17/0x20 [<ffffffff815aee92>] system_call_fastpath+0x16/0x1b Rebooting in 15 seconds.. ACPI MEMORY or I/O RESET_REG.
[END] 10/09/2020 14:13:04
System board replacement was performed.
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