On 02/23/2011 03:33 PM, Matthew Garrett wrote:
> On Wed, Feb 23, 2011 at 02:08:08PM -0600, Chris Adams wrote:
>> Once upon a time, Matthew Garrett<mjg59@xxxxxxxxxxxxx> said:
>>> You can't move PVs.
>>
>> What do you think pvmove does?
>
> Move PEs from one PV to another. You can't move a PV.
>
>>> You need a separate /boot.
>>
>> That's needed for more than just LVM (and probably won't go away, as it
>> is a lot simpler to handle a single method in the installer).
>
> Unless you're booting off iSCSI or really, really love software RAID
> (which btrfs also kindly simplifies), the only reason you need a
> separate /boot is because we're slow at putting updated filesystem
> support in grub because there's no need because we default to a separate
> /boot. There's a certain amount of circularity there.
Also we need to have the initramfs on an unencrypted chunk of disk.
>>> If you use more than one
>>> disk then it adds significant fragility to the boot process.
>>
>> How does it do that (any more than any other multi-disk setup)?
>
> My experience with LVM is that any number of error states dump me into
> an awkward recovery scenario. Again it's not an inherent problem with
> the technology, more just that because nobody outside the enterprise
> world really cares about LVM nobody has bothered making it easy for
> non-sysadmins to handle this stuff.
Yep.
--
Peter
RFC 882 put the dots in .com.
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