Re: painted into a corner
On 08/19/2018 12:40 PM, Gene Heskett wrote:
I just installed stretch to a fresh 2T HD. letting it autopartition and
format for separate /, swap, /var and /home partitions. But I didn't let
it overwrite the grub on the 1st drive it was/is booting wheezy from.
I figured I'd mount it to wheezy and copy over my personal stuff, like an
email corpus well over 15GB reaching back to 2002.
But I can't mount much of the drive, / is all that will actually mount,
because the 2 versions of ext4 are incompatible, nearly all the mount
and e2tools can't touch the installers ext4 file systems.
For instance, its not mounted:
gene@coyote:~$ e2fsck /dev/sdb8
e2fsck 1.42.5 (29-Jul-2012)
/dev/sdb8 has unsupported feature(s): metadata_csum
e2fsck: Get a newer version of e2fsck!
And of course whats installed to wheezy is the latest available wheezy
version of e2fsck.
Whats the recommended way to do these mounts so I can maintain as much
continuity as possible?
Migrations are much easier when you have additional computers and parts
drives to help. I have a dedicated file and version control server. I
also have a machine for backups, archives, images, and whatever else
(workbench). All of my machines have HDD/ SDD mobile racks, so it is
easy to move drives around.
I prefer small SSD's for system drives -- 16+ GB. I use large HDD's for
file server data drives and for storing backups, archives, and images.
I would use that 2 TB for one of the non-system drive purposes.
When I want to upgrade a machine, I ensure that all of the configuration
files are checked into version control and that all the data is backed
up/ archived. I pull all of the drives, and take an image of the system
drive. The old drives go on the shelf, in case I want to revert.
Next, I insert a wiped 2.5" SSD system drive into the target machine and
do a fresh install. I take an image of the system drive.
Next, I install applications, adjust configuration files, restore data,
etc., adding drives, taking notes, and using version control as needed.
Once the rebuilt machine is complete and operational, I integrate it
into my backup/ archive system and take another image of the system drive.