Archived posting to the Leica Users Group, 2009/08/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Nathan I don't know the answer to your question, but what worries me with this approach is that Time Machine may decide it needs to backup (say) 15 minutes after you have changed to Snow Leopard so i think the only safe way is to turn Time Machine off until you are 100% sure about things or it will logically backup Snow Leopard before you are ready. Gerry Gerry Walden +44 (0)23 8046 3076 Web: www.gwpics.com Blog: www.stockuk.blogspot.com On 27 Aug 2009, at 07:27, Nathan Wajsman wrote: > Can my Time Machine backup serve as that pre-upgrade backup? I.e. if > installation of Snow Leopard is screwed up for whatever reason (and > screws up my user data) can I then recover using Time Machine? > > Nathan > > Nathan Wajsman > Alicante, Spain > http://www.frozenlight.eu > http://www.greatpix.eu > http://www.nathanfoto.com > > Books: http://www.blurb.com/bookstore/search?search=wajsman&x=0&y=0 > PICTURE OF THE WEEK: http://www.fotocycle.dk/paws > Blog: http://www.fotocycle.dk/blog > > > > On Aug 27, 2009, at 7:19 AM, Adam Bridge wrote: > >> You're right that it's not necessary, but isolating user data from >> the >> OS just strikes me as a good idea in general. And, as I pointed out, >> it lets you easily roll back to the old version of the OS without the >> loss of data that went into your account in the meantime. If, for >> example, you need a program that only runs properly under 10.5.8 but >> want to run Snow Leopard otherwise you can easily do it just by >> rebooting from another volume. >> >> It might be overkill for your basic user but as our software suites >> become more complex I'm thinking it's worth the effort. >> >> Adam >> >> On Wed, Aug 26, 2009 at 7:28 PM, Henning Wulff <henningw at >> archiphoto.com >> > wrote: >>> >>> If you have a cloned backup, and your drive is healthy as per the >>> utilities, that's not necessary. >>> >>> At 5:42 PM -0700 8/26/09, Adam Bridge wrote: >>>> >>>> If you can, I recommend moving your user accounts to a separate >>>> drive. this >>>> isolates all your crucial user data from the OS system drive. In >>>> Leopard >>>> (and Snow Leopard) it's straightforward although you need to use >>>> the command >>>> line "ditto" command to do the move. Once your own data is >>>> isolated from the >>>> system disk it's a whole lot nicer to make OS changes. Having a >>>> separate >>>> clone of your system disk allows for the old OS to simply be >>>> rolled in or >>>> out as needed. >>>> Adam >>>> >>>> On Wed, Aug 26, 2009 at 12:05 PM, Henning Wulff <henningw at >>>> archiphoto.com >>>> >wrote: >>>> >>>>> Just a general reminder: >>>>> >>>>> Make sure a full backup on an external drive is up-to-date. >>>>> Run Diskwarrior or similar directory analyzing/repair software. >>>>> Run applejack or similar to clean caches, fix permissions etc. >>>>> Update computer. >>>>> >>>>> --no worry, no pain-- >>>>> >>>>> If some drivers or other software that is essential doesn't work >>>>> or cause >>>>> sproblems, you can immediately boot from the external and be >>>>> running again. >>>>> >>>>> Otherwise, you're home free. >>>>> >>>>> -- >>> >>> -- >>> >>> * Henning J. Wulff >>> /|\ Wulff Photography & Design >>> /###\ mailto:henningw at archiphoto.com >>> |[ ]| http://www.archiphoto.com >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information Gerry Walden +44 (0)23 8046 3076 Web: www.gwpics.com Blog: www.stockuk.blogspot.com