On Sunday, August 19, 2018 10:37:05 PM -04 john doe wrote: > On 8/19/2018 9:40 PM, Gene Heskett wrote: > > Greetings all; > > > > 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? > > Maybe using apt-pinning. > > In other words, installing the version of Stretch/Jessie on wheezy. > > On the wheezy host, can't you backupt on an external hardware?
In those cases I usually boot a recent live-CD (or USB-stick) like KNOPPIX and mount and copy from there. -- Eike Lantzsch ZP6CGE
