How to obtain list of installed packages

[Bret Busby]

On 20/05/2016, Petter Adsen <petter at synth.no> wrote:
> On Fri, 20 May 2016 16:27:16 +0800
> Bret Busby <bret.busby at gmail.com> wrote:
>
>> In the process, something has apparently gone wrong with the table
>> that manages the partitions (the GPT?), and the start point and end
>> point locators and/or the partitions sizes records.
>>
>> If I knew how to reproduce the particular error message, it would
>> probably be quite helpful, in all of this, as I may be completely
>> wrong, in my perception of the need to rebuild the file systems on the
>> HDD.
>
> Try 'sudo gdisk -l /dev/sda' if the disk is indeed GPT. That should
> list the partition table, and would probably display error messages if
> something is wrong.

"
bret at bret-Aspire-V3-772-UbuntuMATE:~$ sudo gdisk -l /dev/sda
sudo: unable to resolve host bret-Aspire-V3-772-UbuntuMATE
[sudo] password for bret:
GPT fdisk (gdisk) version 1.0.0

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 1C378A0E-EC1F-4E9B-8B5A-55B8505336D0
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 6096 sectors (3.0 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048          821247   400.0 MiB   EF02  Basic data partition
   2          821248         1435647   300.0 MiB   EF00  EFI system partition
   3         1435648         1697791   128.0 MiB   0C01  Microsoft reserved ...
   4         1697792       197010291   93.1 GiB    0700  Basic data partition
   5      1917870080      1953523711   17.0 GiB    2700  Basic data partition
   6       197011456       392323071   93.1 GiB    EF00  Debian 7 OS
   7       392323072       587634687   93.1 GiB    0700  Debian7Home
   8       587634688       650135551   29.8 GiB    8200
   9       650135552       845447167   93.1 GiB    0700  Data1-ext4
  10       845447168      1040758783   93.1 GiB    EF00  Debian6 OS
  11      1040758784      1236070399   93.1 GiB    0700  Data2-ext2
  12      1236070400      1440870399   97.7 GiB    0700
  13      1440870400      1645670399   97.7 GiB    0700
  14      1645670400      1744717765   47.2 GiB    0700  Debian6 Home
  15      1744717824      1820889698   36.3 GiB    8300
  16      1820891136      1917870079   46.2 GiB    8300
bret at bret-Aspire-V3-772-UbuntuMATE:~$
"


>
>> What I was intending to do, was to stay with 15.10, until the
>> publicised problems with 16.04, had been resolved/disappeared.
>
> 16.04.01 is scheduled to be released 2016-07-21, by then it will
> probably be a whole lot better.
>
>> I had understood that the support for non-LTS versions of Ubuntu, was
>> about 18 months. I must be wrong, in that understanding
>
> Support for non-LTS is 9 months, as in three months after the subsequent
> release is finished.
>

As I said, I must be wrong in my understanding, but, thank you for the
clarification.

>> > Try the above. Also remember to copy any configuration files you
>> > would like to save from your home directory (and /etc). Configuring
>> > everything from scratch can easily take a lot more time than
>> > re-installing packages.
>>
>> Okay; I intend then, to try that, when I can.
>
> I forgot to mention that a full backup before you upgrade or reinstall
> is a very good idea, although it shouldn't be necessary to say so :)
>
> Also, I wouldn't try to create an archive with apt-clone on 15.10 and
> restore it on 16.04. It is probably better to restore it also on 15.10
> and then run do-release-upgrade.
>


That would be my intention - sticking with the same version, for the
reproduction, then dist-upgrade later (well, the Ubuntu Software
Updater GUI way of doing it).



-- 

Bret Busby
Armadale
West Australia

..............

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

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