On 04/05/2020 09:07 PM, Glenn Edwards wrote:
All,
I have EMC2 2.3.0 running on Ubuntu 8.04LTS and it is driving a desk-top
CNC machine. I know, pretty old stuff. But it is running fine and I am
starting a project that will last a month, or so. I just noticed the
hard-drive is making noise/vibration and wonder if it will make it through.
I think it would be great if I could make an image of the disk and copy it
onto another. That way I could swap it out quickly and finish the
project. Is this doable with an old OS? I have everything from WinXp to
Win10 and Ubuntu 8.04 to 16.04 running in the shop, so I can use another
computer to make and copy the disk images. Any and all suggestions are
welcome! Thanks.
So, is this a parallel ATA or SATA drive? Does it have
another drive port on the motherboard?
If so, get a new drive with the right interface, connect it
and look up the procedure for cloning a
drive on the net. There are a couple ways to do it. But,
as long as the new drive is as large or
larger than the old one, it is generally a single dd copy
operation. You can generally copy a
drive while the system is running, but it might be better to
boot off the live CD and do the
copy from the live system.
This will copy the whole disk, including the partition
table, boot block and all the partitions.
sudo dd if=/dev/sda of=/dev/sdb
There are some other options to copy just the boot and
partition table, and then copy
the file systems individually. If the file systems are
mostly empty space, you may be able
to speed it up by just copying the boot/part. table, and
then creating new partitions and
copying the file systems with cp. You will then need to run
lilo or grub to refresh the
pointers to the kernel and loader into the bootloader. I
know how to do this, but this is
getting into guru territory.
Jon
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