Hello Michael, Thanks for your reply . On Tue, Nov 8, 2011 at 8:02 PM, Michael Vogt <m...@ubuntu.com> wrote:
> On Sat, Oct 29, 2011 at 09:19:28PM +0530, Gaurav Saxena wrote: > > Hello Michael > Hi Gaurav, > > sorry for my slow reply. > > > On Fri, Oct 7, 2011 at 2:05 PM, Michael Vogt <m...@ubuntu.com> wrote: > > > > > On Thu, Oct 06, 2011 at 05:15:14PM -0600, Bear Giles wrote: > > > > I've written a few prototypes and this comes down to four issues. > Some of > > > > the details below are debian/ubuntu-specific but the same concepts > will > > > > apply to redhat. > > > [..] > > > > 2. Packages should NOT be backed up. All you need is the package > name and > > > > version. Reinstall from .deb and .rpm if necessary since this way > you're > > > > sure that you never restore compromised files. > > > > > > You may want to look at the apt-clone package for this part of the > > > work, it supports creating/restoring this meta-data. > > > > > Could you suggest something to me that how can I use apt-clone in my > system > > restore program to backup the states of system packages. I read articles > > regarding that like http://swik.net/apt-clone which say that I need to > have > > a ZFS file system for managing snapshots and also its just a front-end to > > apt-get. > > There is a unfortuate name clash here, the apt-clone that uses zfs on > solaris is different from the one we have in the archive. Ohh I see that's why I was confused with how did they use apt-clone to create such a system, Thanks for clearing that big doubt, Actually apt-clone search on google gives result related to their system. Can we implement a system like that using apt-clone and brtfs? Our apt-clone create a system-state file by capturing installed packages, > auto-install states, sources.list etc. apt-clone --help should give a > overview. Its possible to test using e.g. > apt-clone restore --destination=/tmp/foo clonefile > this will restore into a chroot dir. Careful otherwise, the default > restore location is "/". > Ok. And then those packages backed up using dpkg-repack or by downloading are installed using dpkg ? Can this system fix broken upgrades ? > > Cheers, > Michael > > > > > Cheers, > > > Michael > > > > > > > > > > On Fri, Sep 30, 2011 at 12:01 AM, Gaurav Saxena < > grvsaxena...@gmail.com > > > >wrote: > > > > > > > > > Hello Aaron > > > > > Thanks a lot for your quick reply. > > > > > > > > > > On Fri, Sep 30, 2011 at 10:03 AM, Aaron C. de Bruyn < > > > aa...@heyaaron.com>wrote: > > > > > > > > > >> In Windows, the ability to snapshot is built into the filesystem. > > > > >> In Linux, you must be running a filesystem that supports > snapshots. I > > > > >> know LVM supports snapshotting and I believe BRTFS has support, > but > > > > >> other than that I'm not sure. > > > > >> > > > > >> Yes I read the logic behind windows system restore. But I think > we can > > > > > take some other approach for this, that will be better as all users > > > won't be > > > > > able to spare an extra partition formatted brtfs. > > > > > > > > > > > > > > >> Basically, your program would have to check the file system that > is > > > > >> used on the computer (remember Linux can have many types of file > > > > >> systems mounted at the same time), then (in the case of LVM) make > sure > > > > >> there's enough free space to snapshot, and finally take the > snapshot. > > > > >> > > > > >> Ok. Do I have to snapshot the whole system partition / important > > > system > > > > > files to the brtfs partition ? > > > > > > > > > > > > > > >> When the snapshots start filling up, you would either need to > delete > > > > >> them or detect the low space and resize them. > > > > >> > > > > >> In my personal opinion, snapshotting in Linux is currently a pain > in > > > > >> the rear. It sounds like BTRFS could change that, but it's still > a > > > > >> ways off. > > > > >> > > > > >> Ok. I will try another approach that will be better as suggested > by > > > > > people here. > > > > > > > > > > > > > > >> -A > > > > >> > > > > >> > > > > >> On Thu, Sep 29, 2011 at 21:00, Gaurav Saxena < > grvsaxena...@gmail.com> > > > > >> wrote: > > > > >> > Hello all, > > > > >> > I want to write a windows system restore like program for > ubuntu , > > > which > > > > >> > will have options for creating restore points for the system and > > > then > > > > >> > restoring it back to that point. Also I will as an extension > provide > > > > >> support > > > > >> > for older version of a file as is in windows currently. I need > your > > > help > > > > >> to > > > > >> > find how to start with this in ubuntu. I know that I have to > > > snapshot > > > > >> the > > > > >> > system when creating a restore point and then restore it. I need > > > some > > > > >> > starting pointers so that I can start doing this work. Also if > this > > > has > > > > >> > already been done please inform me. I got this idea from > > > > >> > https://wiki.ubuntu.com/SystemRestore. > > > > >> > -- > > > > >> > Thanks and Regards , > > > > >> > Gaurav > > > > >> > > > > > >> > -- > > > > >> > Ubuntu-devel-discuss mailing list > > > > >> > Ubuntu-devel-discuss@lists.ubuntu.com > > > > >> > Modify settings or unsubscribe at: > > > > >> > https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss > > > > >> > > > > > >> > > > > > >> > > > > > > > > > > > > > > > > > > > > -- > > > > > Thanks and Regards , > > > > > Gaurav > > > > > > > > > > > > > > > > > > > > -- > > > > > Thanks and Regards , > > > > > Gaurav > > > > > > > > > > -- > > > > > Ubuntu-devel-discuss mailing list > > > > > Ubuntu-devel-discuss@lists.ubuntu.com > > > > > Modify settings or unsubscribe at: > > > > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss > > > > > > > > > > > > > > > > > -- > > > > Ubuntu-devel-discuss mailing list > > > > Ubuntu-devel-discuss@lists.ubuntu.com > > > > Modify settings or unsubscribe at: > > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss > > > > > > > > > > > > -- > > Thanks and Regards , > > Gaurav > -- Thanks and Regards , Gaurav
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