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:

Symptoms

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

Changes

 System board replacement was performed. 

Cause

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