Tried --
umount -t xfs /mnt/data vgchange -a n lvm_pool vgexport lvm_pool vgimport lvm_pool
Rebooted and kernel 862 still panics/hangs. Can boot into kernel 514.
On Sat, Jul 14, 2018 at 1:35 PM Mike 1100100@gmail.com wrote:
When I change /etc/fstab from /dev/mapper/lvol001 to /dev/lvm_pool/lvol001, kernel 3.10.0-514 will boot.
Kernel 3.10.0-862 hangs and will not boot. On Sat, Jul 14, 2018 at 1:20 PM Mike 1100100@gmail.com wrote:
Maybe not a good assumption afterall --
I can no longer boot using kernel 3.10.0-514 or 3.10.0-862.
boot.log shows:
Dependency failed for /mnt/data Dependency failed for Local File Systems Dependency failed for Mark the need to relabel after reboot. Dependency failed for Migrate local SELinux policy changes from the old store structure to the new structure. Dependency failed for Relabel all filesystems, if necessary.
On Sat, Jul 14, 2018 at 12:55 PM Mike 1100100@gmail.com wrote:
I did the following test:
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Computer with Centos 7.5 installed on hard drive /dev/sda.
Added two hard drives to the computer: /dev/sdb and /dev/sdc.
Created a new logical volume in RAID-1 using RedHat System Storage Manager:
ssm create --fstype xfs -r 1 /dev/sdb /dev/sdc /mnt/data
Everything works. /dev/lvm_pool/lvol001 is mounted to /mnt/data. Files and folders can be copied/moved, read/written on /mnt/data.
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I erased CentOS 7.5 from /dev/sda. Wrote zeros to /dev/sda using dd. Reinstalled CentOS 7 on /dev/sda. Completed yum update - reboot - yum install system-storage-manager.
RedHat system storage manager listed all existing volumes on the computer:
[root@localhost]# ssm list
Volume Pool Volume size FS FS size Free Type Mount point
/dev/cl/root cl 65.00 GB xfs 64.97 GB 63.67 GB linear / /dev/cl/swap cl 8.00 GB linear /dev/lvm_pool/lvol001 lvm_pool200.00 GB xfs 199.90 GB 184.53 GB raid1 /mnt/data /dev/cl/home cl 200.00 GB xfs 199.90 GB 199.87 GB linear /home /dev/sda1 4.00 GB xfs 3.99 GB 3.86 GB part /boot
[/CODE]
So far, so good. The new CentOS7 install can see the logical volume.
Mounted the volume: ssm mount -t xfs /dev/lvm_pool/lvol001 /mnt/data Works. cd to /mnt/data and I can see the files left on the volume from the previous tests. Moving/copying/read/write -- works.
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- Is it safe to assume when using RedHat System Storage Manager it's
not necessary to use the lvm commands (vgexport and vgimport) to move two physical drives containing a logical volume in raid 1 from one computer to another?
Thanks for your help and guidance.