Re: Cloning hdds of different sizes
When I say - will only work with an msdos disklabel, I meant will only
work for msdos disklabels IF you have free primary parition slots. GPT
doesn't have this issue and if you can boot GPT labeled disks you
should go with this.
On 28 May 2014 12:22, Joel Wirāmu Pauling <joel@aenertia.net> wrote:
> You can do this several ways.
>
> Way 1)
>
> Filesystem level copy + grub install.
>
> a)Use a rescue or minimal live boot environment, partition your new
> disk as you like; complete the minimal install.
> b)Drop to a shell in the live environment, and mount the new root and
> fstab layout under a tmp target mount point (i tend to use
> /mnt/new<subfilesystems) creating each of the sub file system mount
> directorys under the root then mounting them in turn
> c)Mount the old filesystem (i.e /mnt/old ) and any subfilesystems
> d) Use rsync to copy everything under /mnt/old to /mnt/new (rsync
> -pPvra /mnt/old /mnt/new) - you may want to exclude /mnt/old/dev and
> /mnt/old/proc )
> e) Bind mount the live filesystems proc,sysfs and dev mounts to the
> /mnt/new ( i.e mount -o bind /dev /mnt/new/dev ; mount -t sysfs
> /mnt/new/sysfs mount -t proc none /mnt/new/proc )
> d) chroot to the new directory ( chroot /mnt/new /bin/bash )
> e) fix up any device pointers in /etc/fstab (you might need to change
> around /dev/sdX etc to accord to the new filesystem parition/device ID
> - a better method is to get the UUID of the block device using blkid
> and add that into the /etc/fstab for each fo the mount points than
> using changable /dev entrys)
> f) run grub-install from the chroot.
> g) Done.
>
>
> Way2) (actually more risky and less easy than the above IMHO and will
> only work with an msdos disk label )
>
> Block copy + fixup disk boundrys by hand + add paritions at the end
> a) Boot a live environment
> b) ddrescue /dev/old to /dev/new after running sfdisk on the old and
> new and keeping a copy of the cylinder/layout info somewhere to refer
> to
> c) partprobe the new /dev/new
> e) Run gparted/parted and align sectors etc
> f) Add/resize the last parition to fill the space
> g) Cross fingers.
>
>
>
>
> -Joel
> http://gplus.to/aenertia
> @aenertia
>
>
> On 28 May 2014 11:03, Catalin Soare <lolinux.soare@gmail.com> wrote:
>> Hello,
>>
>> In one of my computers I have 2 HDDs. One of them is a 250 GB drive (debian)
>> and the other is a 300 GB (data).
>>
>> I've decided to give one of them to my parents because the one they have
>> right now makes some strange noises. So I've backed up and cleaned up the
>> drive, and as we speak I am cloning my debian install (from the 250 GB disk)
>> onto the other drive.
>>
>> My fstab contains blkids to identify the root, swap, and home partitions.
>> Will the new clone just boot as if it was on the old drive?
>>
>> Also is there a simple method to resize the future home partition and move
>> the root partition so that I don't end up with unallocated space on the
>> drive?
>> Basically I'd like to have a bootable system while also being able to use
>> the entire space on the disk.
>>
>> Thank you for any suggestions,
>>
>> --
>> Sent from my Brick (TM)
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