Centos 5.5 RAID 1 boot issue

I installed 5.5 with a 300GB RAID 1 partition (boot is also on this partition).  It booted up fine the first few times until after I used a Live CD and accessed the array, and it became named /dev/md127 for some reason.

Now whenI boot into CentOS I get a kernel panic and different errors, once I got "invalid superblock", even though the array is fine (it didn't happen again, probably because I was sure to dismount and stop the mdadm array properly).

Here's what I get when booting (the /dev/md127 is the problem I think):

raid1: raid set md127 active with 2 out of 2 mirrors
md: ... autorun DONE.
Trying to resume from LABEL=SWAP-sda2
No suspend signature on swap, no tresuming.
Creating root device.
Mounting root filesystem.
mount: could not find filesystem '/dev/root'
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory.
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmountin gold /proc
unmounting old/sys
switchroot: mount fialed: No such file or directory
Kernel panic -no syncing: Attempted to kill init!

I have tried specifying the root with UUID= with /dev/md0 and /dev/md127 without any different result. I'm really getting frustrated and stuck.  I also wonder if the issue might be that I used a very new 3.1.2 mdadm to access the array on my boot disc, could that have caused some incompatiblity problem with a different and likely older version of mdadm that Centos uses?

 

Solved

I think that when I accessed the raid array and it became md127, this screwed up all the initrd's or something else.  I don't know how to explain it.

I got the idea to use single user mode and it booted fine.  Then I just made an initrd:

mkinitrd /boot/yournewinitrd `uname -r` and make sure you boot with that initrd, I was able to boot again.  This should serve as a warning for anyone booting with RAID 1.  DON'T ACCESS THE RAID ARRAY WITH A LIVE CD UNLESS YOU USE THE SAME MD DEVICE.  I really think this is a Centos and mdadm bug in one.


Tags:

centos, raid, issuei, installed, gb, partition, booted, accessed, array, dev, md, wheni, kernel, errors, quot, invalid, superblock, didn, dismount, mdadm, booting, active, mirrors, autorun, resume, label, swap, sda, suspend, tresuming, creating, mounting, filesystem, mount, filesystems, fs, setuproot, directory, fstab, sys, defaults, proc, switching, init, unmounting, unmountin, switchroot, fialed, syncing, specifying, uuid, frustrated, disc, incompatiblity, initrd, user, mode, mkinitrd, yournewinitrd, uname,

Latest Articles

  • ImageMagick Convert PDF Not Authorized
  • ImageMagick Converted PDF to JPEG some files have a black background solution
  • Linux Mint Mate Customize the Lock screen messages and hide username and real name
  • Ubuntu/Gnome/Mint/Centos How To Take a partial screenshot
  • ssh how to verify your host key / avoid MIM attacks
  • Cisco IP Phone CP-8845 8800/8900 Series How To Reset To Factory Settings Instructions
  • ls how to list ONLY directories
  • How to encrypt your SSH private key file id_rsa
  • Linux Mint 18 Disable User Name List from showing on Login Screen
  • Firefox Cannot Hit Enter Key In Address Bar and Location History Not Working
  • Cisco Unified Communications Manager / CUCM IP 8.6,10,12 Install Error Solution
  • Ubuntu Debian Mint Linux SSHD OpenSSH Server Not Starting After Reboot Solution
  • nmap how to scan for all ports and not just the 1000 most common ports
  • Windows 7,8,10 and Server 2008, 2012, 2016, 2019 Read Only Attribute Won't Go Away
  • bind / named how to make a wildcard record and retain defined A records
  • Cisco Unified Communications Manager 12 Install Errors on Proxmox/KVM
  • Local Vs Universally Administered MAC Address NIC Refuses to come up
  • Cisco Unified Communications Manager 12 CUCM 12 - How To Enable Video Calling
  • Windows 7, 8, 10, Windows Server 2008, 2012, 2016, 2019 How To AC97 Audio Drivers and Other Unsigned Drivers
  • Cisco Unified Communications Manager / CUCM IP Telephony Definitions