[ubuntu-uk] Partitioning

[David Goldsbrough]

I am going to spare you Daniel all the details and other readers of this
post.
Briefly I had documented everything and that is now lost for reasons I can
only guess. I had chosen your Option 2 without success and then Option 1
with I hope is success.  I did though suffer errors on re-boot and so
attempted another re-boot - this time it reported fsck issues which I
answered F to and all seemed fine.
I then rebooted from the 60GB USB drive to grab the documentation and
started up Firefox to get at my Google drve.  Firefox started as if this
was the first time it had ever started - weird and accessing the google
drive and trying to find my documentation file - it was not there! Odd!

So I reboted into my 120GB and again Firefox starts as if brand new -
bookmarks and history have gone.  Cpuld dd have done that?

But forget that I think I now have a full 120GB system but am starting to
have some doubts over some of the files.  What command should I run to give
me confidence I have a full 120GB?
Thanks
DaveG

On 8 February 2016 at 22:49, Daniel Llewellyn <diddledan at gmail.com> wrote:

>
>
> On 8 February 2016 at 22:32, David Goldsbrough <daveg at boavon.plus.com>
> wrote:
>>
>> $ sudo parted -l
>>
>> Model: ATA TOSHIBA MK1255GS (scsi)
>> Disk /dev/sda: 120GB
>> Sector size (logical/physical): 512B/512B
>> Partition Table: msdos
>>
>> Number  Start   End    Size   Type      File system  Flags
>>  1      1049kB  256MB  255MB  primary   ext2         boot
>>  2      257MB   120GB  120GB  extended
>>  5      258MB   120GB  120GB  logical                lvm
>>
>>
>> Model:  Mass Storage Device (scsi)
>> Disk /dev/sdb: 60.0GB
>> Sector size (logical/physical): 512B/512B
>> Partition Table: msdos
>>
>> Number  Start   End     Size    Type      File system  Flags
>>  1      1049kB  256MB   255MB   primary   ext2         boot
>>  2      257MB   60.0GB  59.8GB  extended
>>  5      257MB   60.0GB  59.8GB  logical                lvm
>>
>
> OK, from the above read-out it looks like fdisk changed the start position
> of your partition when you recreated it. We have two options as to how to
> proceed:
>
>
>    1. As you have your old LVM disk hooked-up you can reblow the data
>    across to the new larger partition and then run the pvresize, lvextend and
>    resize2fs again thereafter. To reblow the data use `dd if=/dev/sdb5
>    of=/dev/sda5 bs=1m`.
>    2. Alternatively you can try to recreate the lvm partition again with
>    a start of 257M instead of the fdisk-chosen default 258M (it chose 258
>    because that's "aligned" better for your SSD; but being 1MB further into
>    the disk means that the lvm metadata is dangling unaddressable at 257MB)
>    and as above rerun the pvresize, lvextend and resize2fs again.
>
>
> --
> Regards,
>     The Honeymonster Daniel Llewellyn
>
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