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Software RAID1: how to change disks? (lemmy.world)

submitted 6 months ago* (last edited 6 months ago) by peregus@lemmy.world to c/homelab@lemmy.ml

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I have installed Debian with software RAID1 (and installed Proxmox on it) on 2 256GB SSD and I now want to move to 2 500GB SSD, how do I proceed?

Edit: the RAID is of the OS disks.

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[–] peregus@lemmy.world 0 points 6 months ago (1 children)

Oh, so easy?! If the RAID rebuilds the disk, why should I install a bootloader? Isn't it already in the rebuilt disk? By the way...hemmm...how do I install the bootloader? 😣

[–] Shadow@lemmy.ca 1 points 6 months ago* (last edited 6 months ago)

Yes it's really that easy. Raid in Linux is usually at the partition level, not the whole device. The bootloader resides in the first few blocks of the disk before your partitions, and isn't included in the raid.

Use grub-install on the new disk device, ie /dev/sda