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Groups > linux.debian.user > #178990
| From | Richard Owlett <rowlett@cloud85.net> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: Where is data stored when Synaptic scans DVDs? |
| Date | 2017-03-18 11:40 +0100 |
| Message-ID | <tmjW9-4U7-3@gated-at.bofh.it> (permalink) |
| References | <tm0qt-7b2-1@gated-at.bofh.it> <tm2LE-KO-15@gated-at.bofh.it> <tm6Pg-3DI-11@gated-at.bofh.it> <tmdxn-ec-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 03/17/2017 10:43 PM, David Wright wrote:
> On Fri 17 Mar 2017 at 15:29:58 (-0500), Richard Owlett wrote:
>> On 03/17/2017 11:15 AM, songbird wrote:
>>> Richard Owlett wrote:
>>>> As I have limited bandwidth, I install from DVDs.
>>>> Also I frequently experiment with various options by doing a fresh
>>>> install to a different partition.
>>>> It is annoying to keep re-scanning a set of 13 DVDs.
>>>> Where is the information stored?
>>>> /etc/apt/sources.list is obvious, but where is the data about contents
>>>> of each DVD stored?
>>>
>>> man apt-get
>>
>> It implies *BUT DOES _NOT_ STATE* the all the requested data is in
>> the /var/lib/apt directory.
>
> (Three levels of emphasis?)
Sorry, but I was having a generally bad day ;}
>
> IIRC the command to scan is apt-cdrom. Are DVDs handled any
> differently? Anyway, man apt-cdrom says:
>
> "APT uses a CD-ROM ID to track which disc is currently in the drive
> and maintains a database of these IDs in /var/lib/apt/cdroms.list"
>
> I don't think the apt suite has much choice about where to put this
> information; the FHS mandates it in §5.8.1.
>
> But I don't think /var/lib is designed to be shared between systems,
> and so I think you may need to delve into the intricacies of how
> the information is stored if you're going to share it in any way.
Between FHS and man apt-cdrom references and included links I've just
bookmarked 13 pages for further study. They give answers to some
questions I haven't been able to articulate. There are hints of how-to
{and how-NOT-to} accomplish some of my goals.
>
> I assume you can find out which files are involved just by scanning a
> disc and looking at the file timestamps. I would also assume that one
> disc≡one file rather like the Packages files, but have nothing to
> check this out with. If it's that simple, it then just comes down to
> how the files link with the contents of cdroms.list. Looking at the
> latter, I would imagine they use the GUID in there for the
> lists/<filename>. I'm not sure about the -2 suffix I see in there.
>
>> I hadn't thought of looking at apt-get when I posted, even though I
>> had just chased down some differences on how synaptic and apt-get
>> differed in how they logged some trans action. mea culpa ;>
>>
>>> and as i've previously said, you can copy the
>>> dvds to spinning rust or a SSD and avoid all
>>> future needs to reload from them again...
>>
>> Yes but <smile>
>> in my peculiar situation it is better to know on which DVD something
>> resides than to spend ~1000 times more storage space to duplicate
>> the data.
>
> I thought you had copied your DVDs back in 2015. I remember only
> because you incorrectly shouted that you'd used the past tense when
> you wrote "I have copied…". No, it was also because I objected to
> the word "VIOLATES" (also shouted).
That has gone thru several variations, some mutually inconsistent.
That's one of my reasons to work from the DVDs themselves.
>
>>> and futhermore, if you are doing partitions
>>> you can do some minimal install to get the base
>>> system going, then do a partition copy of that
>>> and you'll not have to redo the previous steps
>>> again to recover if you want to try something
>>> else.
>
> I presume it's those "previous steps" that interest you,
> in continuance of your research into preseeding installations.
>
> Cheers,
> David.
>
>
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Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-17 14:50 +0100
Re: Where is data stored when Synaptic scans DVDs? Jonathan Dowland <jmtd@debian.org> - 2017-03-17 15:30 +0100
Re: Where is data stored when Synaptic scans DVDs? songbird <songbird@anthive.com> - 2017-03-17 17:20 +0100
Re: Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-17 21:40 +0100
Re: Where is data stored when Synaptic scans DVDs? Brian <ad44@cityscape.co.uk> - 2017-03-17 22:00 +0100
Re: Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-17 23:30 +0100
Re: Where is data stored when Synaptic scans DVDs? GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-03-18 18:40 +0100
Re: Where is data stored when Synaptic scans DVDs? Brian <ad44@cityscape.co.uk> - 2017-03-18 19:00 +0100
Re: Where is data stored when Synaptic scans DVDs? GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-03-18 20:30 +0100
Re: Where is data stored when Synaptic scans DVDs? Brian <ad44@cityscape.co.uk> - 2017-03-19 00:20 +0100
Re: Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-19 12:40 +0100
Re: Where is data stored when Synaptic scans DVDs? David Wright <deblis@lionunicorn.co.uk> - 2017-03-19 14:20 +0100
Re: Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-19 15:00 +0100
Re: Where is data stored when Synaptic scans DVDs? David Wright <deblis@lionunicorn.co.uk> - 2017-03-20 05:30 +0100
Re: Where is data stored when Synaptic scans DVDs? Brian <ad44@cityscape.co.uk> - 2017-03-21 00:10 +0100
Re: Where is data stored when Synaptic scans DVDs? David Wright <deblis@lionunicorn.co.uk> - 2017-03-21 02:30 +0100
Re: Where is data stored when Synaptic scans DVDs? Brian <ad44@cityscape.co.uk> - 2017-03-21 21:40 +0100
Re: Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-22 11:00 +0100
Re: Where is data stored when Synaptic scans DVDs? Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-21 03:30 +0100
Re: Where is data stored when Synaptic scans DVDs? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-03-21 13:20 +0100
Re: Where is data stored when Synaptic scans DVDs? Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-25 13:00 +0100
Re: Where is data stored when Synaptic scans DVDs? Curt <curty@free.fr> - 2017-03-18 19:10 +0100
Re: Where is data stored when Synaptic scans DVDs? David Wright <deblis@lionunicorn.co.uk> - 2017-03-18 04:50 +0100
Re: Where is data stored when Synaptic scans DVDs? Richard Owlett <rowlett@cloud85.net> - 2017-03-18 11:40 +0100
Re: Where is data stored when Synaptic scans DVDs? songbird <songbird@anthive.com> - 2017-03-18 19:40 +0100
Re: Where is data stored when Synaptic scans DVDs? deloptes <deloptes@gmail.com> - 2017-03-18 20:30 +0100
Re: Where is data stored when Synaptic scans DVDs? songbird <songbird@anthive.com> - 2017-03-19 04:00 +0100
Re: Where is data stored when Synaptic scans DVDs? Curt <curty@free.fr> - 2017-03-18 12:00 +0100
An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Richard Owlett <rowlett@cloud85.net> - 2017-03-23 02:10 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Brian <ad44@cityscape.co.uk> - 2017-03-23 10:50 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Darac Marjal <mailinglist@darac.org.uk> - 2017-03-23 11:20 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Brian <ad44@cityscape.co.uk> - 2017-03-23 12:30 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] David Wright <deblis@lionunicorn.co.uk> - 2017-03-24 22:40 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Curt <curty@free.fr> - 2017-03-25 12:00 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] David Wright <deblis@lionunicorn.co.uk> - 2017-03-26 00:30 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Curt <curty@free.fr> - 2017-03-26 13:40 +0200
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] David Wright <deblis@lionunicorn.co.uk> - 2017-03-28 04:50 +0200
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Curt <curty@free.fr> - 2017-03-28 18:20 +0200
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] David Wright <deblis@lionunicorn.co.uk> - 2017-03-28 21:10 +0200
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Brian <ad44@cityscape.co.uk> - 2017-03-29 20:20 +0200
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Brian <ad44@cityscape.co.uk> - 2017-03-25 14:10 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] David Wright <deblis@lionunicorn.co.uk> - 2017-03-25 22:10 +0100
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Richard Owlett <rowlett@cloud85.net> - 2017-03-26 14:30 +0200
Re: An INCOMPLETE solution - was [Re: Where is data stored when Synaptic scans DVDs?] Brian <ad44@cityscape.co.uk> - 2017-03-24 19:40 +0100
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