On Friday 13 May 2011 20:11:01 James Wall wrote: > On Thu, May 12, 2011 at 7:09 PM, Andrew Lowe <a...@wht.com.au> wrote: > > On 13/05/2011 5:00 AM, Tanstaafl wrote: > >> Probably a dumb one, but... > >> > >> I have /home, /usr and /var on separate partitions... > >> > >> If I want to image my system prior to the update 'just in case' > >> something goes south, am I correct that all I need to worry about is /, > >> since /etc is located there? > >> > >> In other words, is anything on /usr or /var touched during this update? > > > > If you want to be reeaallyyy safe, and want an image and not a > > backup, grab the latest copy of SystemRescueCd, a couple of TB of usb > > external drive space, which is very cheap these days, and use partImage > > to grab a true image of your whole system. I started doing this recently > > and it's saved me once so far. Things "flew apart big time" for me > > recently, a disk failure, I rebooted into the rescue cd and hey presto, > > 30 minutes later, everything was good. > > > > Andrew > > Another tool which will work well is dd. > as an example to back up my laptop before experimenting with new > distros, I do dd if=/dev/sda of=/mnt/backup/jalopy.img bs=2M to back > up the drive for a bare metal restore of the 40 GB hard drive. > > James Wall
Is the bs=2M important? Should one use the block size of the drive? -- Regards, Mick
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