[ubuntu-uk] Ubuntu screenc scrambled

Greg Herdman gherdman at toucansurf.com
Sun May 17 17:29:33 BST 2009


Thanks Daniel.
Unfortunately I have two unrelated issues:
1. I'm such a newbie that much of the technical terminology passes me 
by. I have a copy of *Beginning Ubuntu Linux* (Thomas & Sicam / Apress) 
with Ubuntu 8.04LTS installation DVD. My system was set up at purchase 
so I have no experience of the installation process.
2. My system is Ubuntu-only; no other OS and everything on a single 
partition.

Can anyone a) confirm Daniel's memory work and/or b) provide an 
idiot-guide to solving my issue?
Thanks in anticipation.
Greg

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> Today's Topics:
>
>    1. Re:  Non ubuntu related question- Keyboard shortcuts for
>       google reader in Android (mac)
>    2.  Installing Ubuntu using wubi on Vista Home machine..... (John)
>    3.  LVD (maybe) (Ian Pascoe)
>    4. Re:  LVD (maybe) (Alan Lord (News))
>    5. Re:  LVD (maybe) (Ian Pascoe)
>    6. Re:  Go on Linux, was Re: Chess Tournament? (Neil Greenwood)
>    7. Re:  LVD (maybe) (Neil Greenwood)
>    8. Re:  LVD (maybe) (Ian Pascoe)
>    9. Re:  Installing Ubuntu using wubi on Vista Home	machine.....
>       (Gordon)
>   10.  Scrambled screen (Greg Herdman)
>   11. Re:  Scrambled screen (Daniel Rhodes-Mumby)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 16 May 2009 12:31:38 +0100
> From: mac <ammonius.grammaticus at gmx.co.uk>
> Subject: Re: [ubuntu-uk] Non ubuntu related question- Keyboard
> 	shortcuts for google reader in Android
> To: British Ubuntu Talk <ubuntu-uk at lists.ubuntu.com>
> Message-ID: <4A0EA41A.6020405 at gmx.co.uk>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> javadayaz wrote:
>   
>> Again All these shortcuts work on a normal keyboard and not android.
>>     
>
> Ah yes, sorry -- I see from various blogs and forums that people are 
> bemoaning the absence of keyboard shortcuts for Reader on Android. 
> Looks like you may be unlucky with this for now?
>
> mac
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 16 May 2009 15:14:11 +0100
> From: John <jakewc2 at sky.com>
> Subject: [ubuntu-uk] Installing Ubuntu using wubi on Vista Home
> 	machine.....
> To: British Ubuntu Talk <ubuntu-uk at lists.ubuntu.com>
> Message-ID: <4A0ECA33.3070505 at sky.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I am trying to install Ubuntu 9.04 on a vista machine. I got to the 
> install bit, and it showed that it was installing amd68 not i386. I want 
> to install the i386 as that is what I know. Can somebody give me the url 
> to the i386 installer for wubi? I cant seem to find it.
>
> Thank you.
>
> John.
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 16 May 2009 16:13:27 +0100
> From: "Ian Pascoe" <softy.lofty.ilp at btinternet.com>
> Subject: [ubuntu-uk] LVD (maybe)
> To: "British Ubuntu Talk" <ubuntu-uk at lists.ubuntu.com>
> Message-ID:
> 	<BJEBIDFAKAGIFDCKKHILEEMAGPAA.softy.lofty.ilp at btinternet.com>
> Content-Type: text/plain;	charset="US-ASCII"
>
> Hi Folks
>
> I think the correct acronym  is LVD - it's the tool that can make multiple
> HDDs look like a single HDD on a machine.
>
> Anyhow, a quick question on how it works.
>
> If you set up an installation using this tool, can you remove one of the
> participating drives and use it on another machine with no problems?  That
> is to say if you have 2 SATA drives and you want to physically move one
> drive to another machine, will it just connect and go, or do you have to do
> something with the tool first before removal to re-create a properly
> formatted drive?
>
> Cheers
>
> Ian
>
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 16 May 2009 16:25:27 +0100
> From: "Alan Lord (News)" <alanslists at gmail.com>
> Subject: Re: [ubuntu-uk] LVD (maybe)
> To: ubuntu-uk at lists.ubuntu.com
> Message-ID: <gumlt5$omj$1 at ger.gmane.org>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 16/05/09 16:13, Ian Pascoe wrote:
>   
>> Hi Folks
>>
>> I think the correct acronym  is LVD - it's the tool that can make multiple
>> HDDs look like a single HDD on a machine.
>>     
>
> I think you mean LVM.
>
> Logical Volume Management.
>
> Google/Wikipedia are your friends.
>
> Al
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 16 May 2009 18:23:21 +0100
> From: "Ian Pascoe" <softy.lofty.ilp at btinternet.com>
> Subject: Re: [ubuntu-uk] LVD (maybe)
> To: "British Ubuntu Talk" <ubuntu-uk at lists.ubuntu.com>
> Message-ID:
> 	<BJEBIDFAKAGIFDCKKHILOEMCGPAA.softy.lofty.ilp at btinternet.com>
> Content-Type: text/plain;	charset="US-ASCII"
>
> Hi Al
>
> Ah-ha,  everything becomes clearer with the right acronym!  Thanks.
>
> However, still not too sure about things having read the documentation.
>
> Can someone confirm for me please that:
>
> - the disk / partition's metadata is left intact and correctly formatted so
> that a physical drive can be moved between machines without problems -
> presumeing the correct commands are issued to remove the drive from the
> virtual drive;
>
> and
>
> - when writing to the virtual disc, LVm won't split large files over
> multiple physical partitions / drives unless specifically told to do so?
>
> Ian
>
> -----Original Message-----
> From: ubuntu-uk-bounces at lists.ubuntu.com
> [mailto:ubuntu-uk-bounces at lists.ubuntu.com]On Behalf Of Alan Lord (News)
> Sent: 16 May 2009 16:25
> To: ubuntu-uk at lists.ubuntu.com
> Subject: Re: [ubuntu-uk] LVD (maybe)
>
>
> On 16/05/09 16:13, Ian Pascoe wrote:
>   
>> Hi Folks
>>
>> I think the correct acronym  is LVD - it's the tool that can make multiple
>> HDDs look like a single HDD on a machine.
>>     
>
> I think you mean LVM.
>
> Logical Volume Management.
>
> Google/Wikipedia are your friends.
>
> Al
>
>
> --
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
> https://wiki.ubuntu.com/UKTeam/
>
>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sat, 16 May 2009 21:45:49 +0100
> From: Neil Greenwood <neil.greenwood.lug at gmail.com>
> Subject: Re: [ubuntu-uk] Go on Linux, was Re: Chess Tournament?
> To: British Ubuntu Talk <ubuntu-uk at lists.ubuntu.com>
> Message-ID:
> 	<fd7a765d0905161345y1f5a584dsfdee320d8583dfc5 at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> 2009/5/15 Michael Rimicans <heed at bigmassiveheed.co.uk>:
>   
>> http://ubuntuforums.org/showthread.php?t=311251
>>     
>
> I haven't looked at the forums, I'll take a look later.
>
>   
>> http://www.britgo.org/
>>     
>
> This has a useful page of links on all sorts of Go-related topics.
> Well worth a look.
>
>   
>> http://www.pandanet.co.jp/English/
>>     
>
> I mentioned KGS; this is another Go server where you can play online
> in real time against people from around the world.
>
>   
>> Nice linux client here:
>>
>> http://www.pandanet.co.jp/English/glgo/
>>     
>
> This has always crashed when I've tried it. Not tried it since I ran
> Hardy (8.04) though.
>
> Cofion/Regards,
> Neil.
>
>
>
> ------------------------------
>
> Message: 7
> Date: Sat, 16 May 2009 22:10:08 +0100
> From: Neil Greenwood <neil.greenwood.lug at gmail.com>
> Subject: Re: [ubuntu-uk] LVD (maybe)
> To: British Ubuntu Talk <ubuntu-uk at lists.ubuntu.com>
> Message-ID:
> 	<fd7a765d0905161410x8b24b2ev9e0f7a212a2f8e30 at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> 2009/5/16 Ian Pascoe <softy.lofty.ilp at btinternet.com>:
>   
>> Hi Al
>>
>> Ah-ha, ?everything becomes clearer with the right acronym! ?Thanks.
>>
>> However, still not too sure about things having read the documentation.
>>
>> Can someone confirm for me please that:
>>
>> - the disk / partition's metadata is left intact and correctly formatted so
>> that a physical drive can be moved between machines without problems -
>> presumeing the correct commands are issued to remove the drive from the
>> virtual drive;
>>     
>
> It's not without problems, but it can be done with a lot of CLI foo.
>
> IIRC, the main problem is if the 'new' machine also uses LVM and has
> the same VG names, it gets rather confused. If the new machine doesn't
> use LVM but has it available in the kernel, everything is much less
> complicated.
>   
>> and
>>
>> - when writing to the virtual disc, LVm won't split large files over
>> multiple physical partitions / drives unless specifically told to do so?
>>     
>
> I don't think you can guarantee this.
>
> There are various levels in LVM (from memory):
> PV    physical volumes
> VG   volume groups
> LV    logical volumes
>
>
> You create a filesystem on an LV, which has to be in a single VG but
> might be split over multiple PVs. So a large file in the LV might end
> up with bits written to different PVs (i.e. disk partitions).
>
>   
>> Ian
>>     
>
> HTH.
> Cofion/Regards,
> Neil.
>
>
>
> ------------------------------
>
> Message: 8
> Date: Sat, 16 May 2009 22:49:45 +0100
> From: "Ian Pascoe" <softy.lofty.ilp at btinternet.com>
> Subject: Re: [ubuntu-uk] LVD (maybe)
> To: "British Ubuntu Talk" <ubuntu-uk at lists.ubuntu.com>
> Message-ID:
> 	<BJEBIDFAKAGIFDCKKHILAEMMGPAA.softy.lofty.ilp at btinternet.com>
> Content-Type: text/plain;	charset="UTF-8"
>
> Hi Neil
>
> that answers things nicely.
>
> >From what you've said I think the watch phrase has got to be once a drive has been incorporated into a virtual system by LVM there it should stay.  Any need to transfer data should be by either network or removeable media.
>
> This brings me to a further question, sorry!
>
> Can a LVM virtual drive be mounted by NFS? 
>
> Ian
>
> -----Original Message-----
> From: ubuntu-uk-bounces at lists.ubuntu.com
> [mailto:ubuntu-uk-bounces at lists.ubuntu.com]On Behalf Of Neil Greenwood
> Sent: 16 May 2009 22:10
> To: British Ubuntu Talk
> Subject: Re: [ubuntu-uk] LVD (maybe)
>
>
> 2009/5/16 Ian Pascoe <softy.lofty.ilp at btinternet.com>:
>   
>> Hi Al
>>
>> Ah-ha,  everything becomes clearer with the right acronym!  Thanks.
>>
>> However, still not too sure about things having read the documentation.
>>
>> Can someone confirm for me please that:
>>
>> - the disk / partition's metadata is left intact and correctly formatted so
>> that a physical drive can be moved between machines without problems -
>> presumeing the correct commands are issued to remove the drive from the
>> virtual drive;
>>     
>
> It's not without problems, but it can be done with a lot of CLI foo.
>
> IIRC, the main problem is if the 'new' machine also uses LVM and has
> the same VG names, it gets rather confused. If the new machine doesn't
> use LVM but has it available in the kernel, everything is much less
> complicated.
>   
>> and
>>
>> - when writing to the virtual disc, LVm won't split large files over
>> multiple physical partitions / drives unless specifically told to do so?
>>     
>
> I don't think you can guarantee this.
>
> There are various levels in LVM (from memory):
> PV    physical volumes
> VG   volume groups
> LV    logical volumes
>
>
> You create a filesystem on an LV, which has to be in a single VG but
> might be split over multiple PVs. So a large file in the LV might end
> up with bits written to different PVs (i.e. disk partitions).
>
>   
>> Ian
>>     
>
> HTH.
> Cofion/Regards,
> Neil.
>
>   



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