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Re: painted into a corner



On Mon 20 Aug 2018 at 18:13:22 (-0700), Jimmy Johnson wrote:
> On 08/20/2018 01:28 PM, Gene Heskett wrote:
> >On Monday 20 August 2018 11:23:00 Andrew McGlashan wrote:
> >
> >>On 20/08/18 05:40, Gene Heskett wrote:
> >>>Whats the recommended way to do these mounts so I can maintain as
> >>>much continuity as possible?
> >>
> >>Those other areas, are they logical volumes perhaps?  lvms.
> >>
> >No, straight partitions according to gparted.
> 
> Hi Gene, I've seen this before, a few times.

It might be useful for posterity to explain what it is in Gene's
extensive posts that you've seen before and which demands such
actions as "described" below.

> 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

Cheers,
David.


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