Re: machine will not boot after moving root

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On Fri, 23 Apr 2021, Roger Heflin wrote:

If you used rsync to copy from one disk to the other then the uuid
would have changed on the new fs as compared to the old fs.  I

Yup.
Needed to change fstab.

typically copy /boot the hard crude way (dd) and copy LVM using the
LVM tools (pvmove and friends) and in both cases that maintains the
same UUID on the old and new.

I do not have a /boot partition.
/boot is in the root, aka / , partition.
I'm allergic to LVM.
The first time I encountered it
was in the middle of an install,
not the time to try something unexpected and new.

You will need to find the new uuid and update grub to be using that
anyplace it has the old uuid then reinstall it on sda if grub is going
to boot first, or see if a microsoft install cd will fix the windows
side of the system, or see below match the new fs to have the old
uuid.

I thought I knew how to do that,
but apparently not.
The issue is not finding the new root IDs,
the issue is what to do with it.

I considered directly copying sda5 to sda3 and changing the IDs on sda5.
sda3 is more than twice as large as sda3.
Whatever else I'd need to do,
I'd need to enlarge the filesystem after.
Does the enlarger work well for two to one enlargements?

What was sda3 before that you could now use it for the system on sda5?

A Windows 7 partition that I had not used in a long time.

You might detail what the partition layout/usage was before and what
you moved it to.

I only changed partitions 2 and 3.

sda before:
1*   100 M  Windows 7 boot?
2    28  G  Windows 7
3    4.7 G  garbage  no fs
4   extended
5    9.3 G /
6    4.7 G /var
7    4.7 G swap
8   24.1 G /home

sda now (intended):
1    100 M  Windows 7 boot?
2    100 M  garbage
3   31.7 G  / new
4   extended
5    9.3 G  / retired
6    4.7 G  swap
7   24.1 G  /home

--
Michael   hennebry@xxxxxxxxxxxxxxxxxxxxx
"Sorry but your password must contain an uppercase letter, a number,
a haiku, a gang sign, a heiroglyph, and the blood of a virgin."
                                                             --  someeecards
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