[Wylug-help] Switching the system to a new hard drive

[Jim Jackson]

Hi James,

>>>> - mount the new partitions and copy across all the data (with rsync or
>>>> cp?)
>>>
>>> I'd be more of a fan of dump and restore.  This is the sort of thing I
>>> do like LVM for, as it'd let you move from the old disk to the new disk
>>> without unmounting or a reboot...
>>
>> I'm a fan of tar for this job - but it helps if the root partition is not
>> mounted, so boot Knoppix or similar from a cdrom.
>
> Seconded, but there is an alternative if you're not able to take the
> system down or boot from CD-ROM.
>
> By bind-mounting the root filesystem, you'll be able to grab a copy of
> it without getting unwanted /proc or /dev udev cruft.
>
> Create a temp directory somewhere, eg: /tmp/rootfs
>
> Then, bind-mount it as follows:
>
> mount -o bind / /tmp/rootfs

should that be --bind ???

I've not caught up with this new stuff - looks useful.

> You can then back-up from /tmp/rootfs and you'll get a copy of the
> filesystem before the extra stuff gets mounted over the top of it. You
> can see this in action by comparing /dev to /tmp/rootfs/dev or /proc to
> /tmp/rootfs/proc.
>
> You'll need to repeat the process for your /var and /usr if they're on
> separate partitions.
>
> James
>
>>
>> Having said that, I'd not thought about the joys of LVM, which so far I've
>> pretty much ignored. Mmmm food for thought there, thanks John.
>>
>>
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>