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Re: painted into a corner



On Sun, Aug 19, 2018 at 03:40:55PM -0400, 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?

I have a few versions of /etc/ backed up - most of what I ever need
in a new install (physical or VM) is in there.

The rest is somewhere in /home - but when installing clean after
skipping a version of Debian, I prefer to move ~/.config/ to a backup
location, before logging in the first time, then just customize till
I get things reasonably the way I like - and I can always grep
through my old .config just in case...

So apart from a little command line mounting of old stuff
occasionally, but in the new system, I always boot into my new
system.

SO, re your grub setup - and since you're now in your old install -
you might configure old grub to know about the new install, and
update grub to the HDD accordingly. In fact, I would also install a
grub that recognizes all my installs, to BOTH HDDs!

That way you can always boot into something.

Other than that, as soon as I can start working in my new install,
the better as far as I'm concerned.

As a mountpoint, perhaps /media/wheezy for mounting your old root, or
vice versa?

Good luck,


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