Then how do you restore it? Reverse it? Sent from my iPhone
> On Sep 13, 2015, at 12:25 AM, Eric Oyen <eric.o...@icloud.com> wrote: > > well, > if you use dd and you set the input file to be the first device for the HDD > in /dev (the root device for the drive), then *everything* should be copied > bit for bit. No missing data, no corruptions. In this case, your root drive > would probably be /dev/sda (with 1 thru x being the partitions in order). > > here is what I use to backup my system: dd if=/dev/sda > of=/Volumes/Media/backups/macHD.img > > that copies the entirety of the primary boot drive (and all its partitions, > boot records, etc.) into a single contiguous file. no muss, no fuss. I have > room on my 2 TB external for at least 1 months worth of backups at one per > week. Considering that the boot drive is only 256 GB, it leaves me a lot of > room for other things (including storing backups of documents, installation > files, and my talking book library. Not too shabby, eh? > > -eric > >> On Sep 12, 2015, at 5:09 PM, Joe Quinn wrote: >> >> did i ask this before, i use dd, but then I'd still have same problem with >> the corrupt partition issue, right? forgive the question if I asked it >> before. >> >> Sent from my iPhone >> >>> On Sep 12, 2015, at 9:14 AM, Eric Oyen <eric.o...@icloud.com> wrote: >>> >>> well, here is how the drive imaging works with Disk utility. >>> >>> you can create a hard disk image, partition it and then copy the relevant >>> files to it. mind you, this is not exactly a clone. I haven't tried this >>> particular method myself, so I am not sure if it would work. >>> >>> However, if you dd the entire device, all information (including boot >>> record, partition map, drive allocation tables, volume bitmaps and >>> everything else is preserved as a bit for bit image. with a large enough >>> backup drive, you can store the entire image as a single file. This is the >>> method I use and it works 100% of the time. THe other method (creating a >>> disk image using DU) will not have the same results. you might miss some >>> things like the MBR, partition tables and a few other needed items. now, I >>> use dd as a matter of course simply because I don't have money to throw at >>> a backup program that may, or may not, be entirely accessible for the >>> totally blind user. it is also an included command line app that can be run >>> in terminal from the recovery partition. SInce I can run this recovery >>> partition from either a CD or a USB stick (properly configured), I don't >>> have to worry about anything on the system drive that might accidentally >>> get wiped (considering that I am wiping it anyway). >>> >>> if you need more info on dd, you can read here: >>> https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/dd.1.html >>> >>> -eric >>> >>>> On Sep 12, 2015, at 6:31 AM, Joe Quinn wrote: >>>> >>>> So if I Image my boot camp partition, then I deleted, reinstall it, and >>>> then restore it, would it boot? I assume not because as you said it >>>> wouldn't copy everything, only where there is data. I'm just confused. :-) >>>> I should just come in and Match the start and sectors of the partition >>>> tables. >>>> >>>> Sent from my iPhone >>>> >>>>> On Sep 12, 2015, at 12:41 AM, Eric Oyen <eric.o...@icloud.com> wrote: >>>>> >>>>> that would work. you can create a sparse image of the drive as an image >>>>> file on another volume. the beauty about this is that only those places >>>>> that have data will be copied. ANything without data will simply be >>>>> ignored (as a zero space allocation). THis generally only works if you >>>>> create a sparse image volume to mimic a hard dis and then do a copy of >>>>> all the files inside the partition. its not exactly a bit for bit backup, >>>>> but it serves as a stopgap. >>>>> >>>>> -eric >>>>> >>>>>> On Sep 11, 2015, at 1:24 PM, Joe Quinn wrote: >>>>>> >>>>>> there's an "image" function in disk utilitity. would that work or do >>>>>> anything? it's in the tolbar with firstaid, restore, etc. >>>>>> >>>>>> Sent from my iPhone >>>>>> >>>>>>> On Sep 11, 2015, at 8:35 AM, Eric Oyen <eric.o...@icloud.com> wrote: >>>>>>> >>>>>>> I mentioned dd. Believe me, its a lot better than msbackup. the last >>>>>>> time I used MS Backup, it missed a number of files in my user settings >>>>>>> directory. so, these days, I backup the windows partition to an >>>>>>> external drive as an image file. I do so once per week and only keep 2 >>>>>>> consecutive backups. THis way, I have the next most recent and the most >>>>>>> recent backups on hand should something be amiss. >>>>>>> >>>>>>> -eric >>>>>>> >>>>>>>> On Sep 11, 2015, at 5:50 AM, - wrote: >>>>>>>> >>>>>>>> >>>>>>>> Someone mentioned "dd" as a backup utility in terminal. Ditto and >>>>>>>> rsync can perform the same function. In google use "os10 backup" and >>>>>>>> one of the names for tons of web sites for using them as backup. >>>>>>>> >>>>>>>>> On Thu, 10 Sep 2015, Joe Quinn wrote: >>>>>>>>> >>>>>>>>> What are some good back up programs that will back up my Mac OS X >>>>>>>>> drive as well as the Boot Camp partition? I think I'm going to need >>>>>>>>> it. :-) >>>>>>>>> >>>>>>>>> >>>>>>>>> Sent from my iPhone >>>>>>>>> >>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "MacVisionaries" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to macvisionaries+unsubscr...@googlegroups.com. >>>>>>>>> To post to this group, send email to macvisionaries@googlegroups.com. >>>>>>>>> Visit this group at http://groups.google.com/group/macvisionaries. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>> >>>>>>>> XB >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "MacVisionaries" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>>>>> an email to macvisionaries+unsubscr...@googlegroups.com. >>>>>>>> To post to this group, send email to macvisionaries@googlegroups.com. >>>>>>>> Visit this group at http://groups.google.com/group/macvisionaries. >>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "MacVisionaries" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>>>> an email to macvisionaries+unsubscr...@googlegroups.com. >>>>>>> To post to this group, send email to macvisionaries@googlegroups.com. >>>>>>> Visit this group at http://groups.google.com/group/macvisionaries. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "MacVisionaries" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>>> an email to macvisionaries+unsubscr...@googlegroups.com. >>>>>> To post to this group, send email to macvisionaries@googlegroups.com. >>>>>> Visit this group at http://groups.google.com/group/macvisionaries. >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google Groups >>>>> "MacVisionaries" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send an >>>>> email to macvisionaries+unsubscr...@googlegroups.com. >>>>> To post to this group, send email to macvisionaries@googlegroups.com. >>>>> Visit this group at http://groups.google.com/group/macvisionaries. >>>>> For more options, visit https://groups.google.com/d/optout. >>>> >>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "MacVisionaries" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to macvisionaries+unsubscr...@googlegroups.com. >>>> To post to this group, send email to macvisionaries@googlegroups.com. >>>> Visit this group at http://groups.google.com/group/macvisionaries. >>>> For more options, visit https://groups.google.com/d/optout. >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "MacVisionaries" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to macvisionaries+unsubscr...@googlegroups.com. >>> To post to this group, send email to macvisionaries@googlegroups.com. >>> Visit this group at http://groups.google.com/group/macvisionaries. >>> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "MacVisionaries" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to macvisionaries+unsubscr...@googlegroups.com. >> To post to this group, send email to macvisionaries@googlegroups.com. >> Visit this group at http://groups.google.com/group/macvisionaries. >> For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com. > To post to this group, send email to macvisionaries@googlegroups.com. > Visit this group at http://groups.google.com/group/macvisionaries. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. 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