Matt Churchyard via freebsd-virtualization wrote this message on Wed, Nov 25,
2015 at 10:18 +0000:
> Of course that's the easy bit. The more dangerous part is resizing the
> partitions inside the guest (if it's not whole disk ZFS), and then resizing
> the filesystems. If the disk is GPT partitioned in the guest you will
> probably have to recover the partition table first, as the secondary copy
> will no longer exist at the end of the disk. You'll then need to resize the
> partitions (hopefully the 'main' partition you want to resize is the last on
> the disk as that'll probably make it easier). Once done you then need to
> resize the filesystem. For ZFS you can usually just 'zpool online -e'. For
> UFS you'll need to grow the filesystem as shown in the handbook.
I have written an rc.d script growfs that is in HEAD that makes this
painless... If you have a single UFS fs, w/ the root as the last
partition/fs on the disk, simply grow the disk, and then you can run
"service growfs start", and it just works...
This will work on any system, not just VMs...
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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