On Tue, Mar 16, 2010 at 02:40:05PM -0400, Phil Stracchino wrote:
> On 03/16/10 14:15, Gavin McCullagh wrote:
> > On Tue, 16 Mar 2010, Bob Cousins wrote:
> >> - Explicit capturing of boot and partitioning information for easier
> >> bare metal restores. (Bare metal restores should be easy and fast for
> >> all OSes, but that is easier said than done.)
> >
> > Do you mean backing up the MBR? That might be nice alright.
>
> Doing this portably is actually a rather difficult problem because there
> are so many different partitioning schemes and partition table formats
> out there. It's a mess.
well, yeah, it would probably best to handle this via wrapper. (like
for example mtx-changer script) as then only such a wrapper needs to
be modified for specific systems.
Under GNU/Linux at least there is sfdisk(8), and one can easily do a
partition dump with "sfdisk -d /dev/sda > somefile" and restore it
with "sfdisk /dev/sda < somefile".
If there was such a wrapper, each distribution could tailor it to its
own needs to allow (majority of) its users to have a hassle-free
out-of-the-box working environment.
> Clean bare-metal restore has been a feature that's been worked on since
> almost the earliest days of Bacula, and there still isn't a clean single
> solution, precisely *because* it's a complex problem.
That is, it is not that hard to do it, but it is hard to do it
automatically -- the cause of problem being exactly high portability
of bacula to different environments.
--
Matija Nalis
Odjel racunalno-informacijskih sustava i servisa
Hrvatska akademska i istrazivacka mreza - CARNet
Josipa Marohnica 5, 10000 Zagreb
tel. +385 1 6661 616, fax. +385 1 6661 766
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