Re: Upgrading system from non-RAID to RAID1

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On January 12, 2023 2:43:26 AM EST, Michael Schumacher <michael_ml@xxxxxx> wrote:
>
>> Follow-up question: Is my proposed strategy below correct:
>> - Make a copy of all existing directories and files on the current
>disk using clonezilla.
>> - Install the new M.2 SSDs.
>> - Partitioning the new SSDs for RAID1 using an external tool.
>> - Doing a minimal installation of C7 and mdraid.
>> - If choosing three RAID partitions, one for /boot, one for /boot/efi
>and the third one for the rest, do I go with the default mdraid
>version, ie 1.2 I believe?
>> - Copying the backup above with contents of the the existing disks,
>ie not just /root and /home but all other directories and files to the
>new disks from the clonezilla backup. Note that the new disks will be
>larger.
>> - Change the boot sequence in the BIOS and reboot.
>
>I don't know if this is still a problem, but in the past, CentOS was
>only writing the boot-loader on one of the RAID-disks. If this one
>would fail, the OS would not boot. So you had to make sure to copy the
>boot-loader onto all RAID-members.
>
>Michael

Ok, will check. Thank you for raising this issue.
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