On Thu, Jan 15, 2015 at 9:03 PM, David Christensen < dpchr...@holgerdanske.com> wrote:
> On 01/15/2015 08:47 PM, Kevin O'Gorman wrote: > >> I was hoping for some details on why this won't work on system drives, or >> conditions under which it just might. Another user has suggested I read >> https://help.ubuntu.com/community/BackupYourSystem/TAR which suggests >> that >> it actually should work. >> > > That would require an in-depth understanding of the Linux kernel, which I > don't have. (My answer was geared towards practical system administration; > it works reliably for me.) > > If you want to learn everything required to explain why a file system > level self-backup of an operational system drive won't work, or how to make > it work (and how to restore it), more power to you. If you would care to > post what you find, I'd like to read it. > No promises, but I might just take you upon that. I don't think it will take any kernel knowledge, but some of the daemons may be an issue. As a first step, I may take a self-dump then do a fast reboot to another OS or partition, restore the dump to a new place and do a compare. If the list of suspects (outside of /tmp and such) is huge, I may give up. If not, I may learn something. I care because I like to have a lot of free space in my partitions, but I hate to use backup time and space on the holes. -- Kevin O'Gorman #define QUESTION ((bb) || (!bb)) /* Shakespeare */ Please consider the environment before printing this email.
