Re: painted into a corner
On Tuesday 21 August 2018 21:51:36 Jimmy Johnson wrote:
> On 08/21/2018 05:29 PM, Gene Heskett wrote:
> > On Tuesday 21 August 2018 18:33:50 Jimmy Johnson wrote:
> >> On 08/19/2018 12:40 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?
> >>> Thanks all.
> >> Hi Gene, I've seen this before, a few times. If you run #fdisk -l
> >> while in stretch and get error, you need to fix that first, using
> >> gparted move the ailing partition '1'byte, just one digit larger or
> >> smaller, if you have to shrink another partition, do it '2'bytes.
> >> UUID will not change and it will pass fdisk -l no error. Now in
> >> wheezy see if you can mount. If not you can disable the checksums.
> >> To disable checksums on an existing filesystem, ensure that the
> >> filesystem will pass fsck. Then turn off metadata_csum via tune2fs.
> >> #tune2fs -O ^metadata_csum /dev/path/to/disk
> >> The above is for ext4, for repairing partition I use this with
> >> force. #fsck.ext4 -pvcf /dev/sdxx
> > Thanks Jimmy. I haven't gotten that far, as I've done 6 or 7
> > installs today and it will not install grub on anything but
> > /dev/sda.
> Run #fdisk -l, only takes a moment...If you have a bad
> partition-table, formatting will not fix it.
It does shut the installer up from complaining about the drive has data
from an old install though. :) And its too late to restart another
install tonight. And I have an appointment with my GP tomorrow to
discuss the protein levels in my liquid output. So we'll have to see
what that leads to.
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>