if the new disk is smaller, unlikely nowadays, you might be able to
shrink it image you created (if you did), effectively
it just truncates the file/iso and leave the empty space out.
On 4/22/20 9:31 PM, Jon Elson wrote:
On 04/22/2020 09:22 PM, andrew beck wrote:
Hey guys.
Just a quick question here
I recently heard some funny clanking noises in my old 2nd hand hard
drive
on my VMC and thought I better change it out and get a SSD in there.
I have a bunch of stuff loaded onto the hardrive for probe basic gui and
other stuff and would like to clone the drive and keep everything.
I can manage a windows cloning I am just not sure if the process will
work
on a linux system. I am using a crucial brand SSD and can download the
drive cloning software (it is rebadged acronis cloning software)
Well, there are two basic procedures. As long as the new drive is at
least as large or larger than the old drive, then you can make an
absolute clone in a few hours with the dd command.
Best to boot off a live dvd, figure out the names of the two drives
and then
|dd if=/dev/sdX of=/dev/sdY bs=64K conv=noerror,sync
if= is the input disk, of= is the output disk. Replace X and Y with
the appropriate letters.Make REALLY sure you get
these right, or you will end up wiping the old disk.
To make sure, you can use fdisk /dev/sdX
and then type p to see the partition tables and makes of the drives.
That should tell you for sure which one has the linux file system,
and which one probably has no partitions set up.
The above procedure may not be real fast.
If the new drive is larger, you can then expand the Linux file system to
fill the disk.
If the new disk is smaller, then this won't work.
*** ONLY do the following if the new disk is smaller than the old one ***
You have to create
partitions with fdisk, make the file systems with mkfs and then copy
all the files with :
# mkdir /mnt/original
# mkdir /mnt/copy
# mount /dev/sdX# /mnt/original
# mount /dev/sdY# /mnt/copy
where X is for the original disk, Y is the copy, and # is the
partition number
# cp -rfa /mnt/original /mnt/copy
and repeat this for all partitions (you don't need to copy the
swapfile partition. You create that with mkswap.
Now, the big issue here is that since files have been moved around on
the disk,
the grub loader will not know where to find them. So, you have to use
the
live DVD system to run grub to update the loader to know where things
are.
The procedure is a bit involved, so I won't detail it unless you need to
go that route.
Jon
|
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