August 2008 - WLUG - wlug.mailman3.com

Re: [Wlug] raid1

by John Stoffel

Simeon> I'd like to set up Raid-1 on my computer. I have 2 500Gig Simeon> hds, one of which is empty, and one of which has data (that I Simeon> want to keep). I found this guide, Simeon> https://wiki.ubuntu.com/Raid (I use Ubuntu), and liked the Simeon> "super simple md" recipe, but I'm not sure how to do this so Simeon> that I don't loose data. (I searched around, but the only Simeon> thing I found required the alternate install CD, which I have Simeon> issues with.) It's pretty simple actually, and what helps is that you have an empty drive. The basic steps would be to: 1. Build an MD device onto the new drive, using RAID1, but with a drive missing. I'd make a pair of primary partitions, one of about 1gb, the other the remaining space. Use the 1GB partition for a /boot partition. 2. Then partition the new MD device (md0 say) or put LVM on top of it to make your devices. 3. Copy your data from the old non-RAID partitions onto the new ones. 4. When you're done, blow away all the old disk stuff, then add it into the RAID1 md0 device as the other half of the mirror. The KEY thing to realize here is that to make sure your system can continue to boot properly, you will need: - bootloader on both disk's MBRs - a non-RAID1 boot partition on both disks - testing, testing, testing. Good luck! John

Aug. 27, 2008

clarification, raid

by Simeon MacMillen

On Tue, Aug 26, 2008 at 12:43 PM, Doug Mildram <dmildram(a)gmail.com> wrote: > for safety how bout a 3rd disk > OR box on your network to ftp/push a "dump" or "tar" file to? Are you suggesting that I don't use Raid at all or that I just back up my stuff before I start? > > stated otherwise, how much data to copy (vs what size older disks do > you have in the near-junk-pile?) I have more data on the 500 Gb drive than I have space on my spare 80 Gb drive...so it sounds like backing up is not an option (unless you have another idea). I might add that the drives have about 7 partitions each. Would it be possible to set up raid one partition at a time, backing up each partition b/f setup? Simeon > (I know: the fun answer is the one that's the coolest. Who doesnt > cross their fingers doing a "resize2fs"?) > > I'm home studying UNIX/rh/lvm/etc anyways so if you wanna call, I'd > probably enjoy helping/talking. > > -doug 508 847 8926 >

Aug. 26, 2008

OPENING - Linux kernel build role (mid to Sr level)

by John Spencer

Our client in MA has an opening for a Mid to Sr level Linux kernel engineer. This is a 12+ mth contract. Linux Kernel Build Engineer Scope of Responsibilities/Expectations; Mid/Senior level software developer responsible for some user mode device drivers but mostly Linux kernel builds, configurations, and customizations. Candidate is expected to have some experience of design and implementation of Linux device-drivers and or system utilities and have worked in a fast paced environment Specifics: - 5+ years experience with C, C++ or assembly-language programming for Linux. * 2+ years experience designing, developing and implementing Linux and/or Unix device drivers. - Willing to do debug and code optimization, boot sequencing, linking, initial down loader, and performance tuning type work - The candidate must be adaptable, flexible and willing to take on new challenges. - The candidate must be a team player, and must be able to work with multiple engineering and cross-functional teams. Additional Desirable Skills - Working with Broadcom and MIPS based processors/targets * Experienced with hardware features such as CPU/memory architectures, DMA engines, Boot loaders, I2C, PCI, Ethernet, USB, IEEE-1394, RS-232, etc. Regards, Optimal Engineering Partners Inc. is now Symphony Services! John Spencer Office: 978-256-1113 ext 7608 Fax: 978-256-1184 jspencer(a)symphonysv.com <mailto:risaac@symphonysv.com> Symphony Services 1 Technology Park Drive Westford , MA 01886 www.symphonysv.com <blocked::file:///C:\Documents%20and%20Settings\hripley-boyd\Application %20Data\Microsoft\Signatures\www.symphonysv.com> This electronic transmission (and any attached documents) contains information from Symphony Services and is for the sole use of the individual or entity it is addressed to. If you receive this message in error, please notify me and destroy the attached message (and all attached documents) immediately.

Aug. 26, 2008

raid1

by Simeon MacMillen

I'd like to set up Raid-1 on my computer. I have 2 500Gig hds, one of which is empty, and one of which has data (that I want to keep). I found this guide, https://wiki.ubuntu.com/Raid (I use Ubuntu), and liked the "super simple md" recipe, but I'm not sure how to do this so that I don't loose data. (I searched around, but the only thing I found required the alternate install CD, which I have issues with.) Any help would be appreciated. Simeon MacMillen

Aug. 26, 2008

I'm running late this evening.....

by Andy Stewart

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ...so if I'm not there right at 7:00 PM, please start without me. I should be there by 7:10 PM at the latest, traffic permitting. Thanks, and my apologies, Andy - -- Andy Stewart, Founder Worcester Linux Users' Group (http://www.wlug.org) Chelmsford Linux Meetup Group (http://linux.meetup.com/393) Amateur Radio: KB1OIQ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFIreoMHl0iXDssISsRApv8AJ4w2BZvh//ODIBZGtwyq1B+mSsD+ACcD6DX lp0vCxqmXKNTryin+zFly2I= =q8DI -----END PGP SIGNATURE-----

Aug. 21, 2008

[Fwd: Software Development Best Practices 2008 in Boston!]

by Andy Stewart

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -- Andy Stewart, Founder Worcester Linux Users' Group (http://www.wlug.org) Chelmsford Linux Meetup Group (http://linux.meetup.com/393) Amateur Radio: KB1OIQ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFIrJRvHl0iXDssISsRAmncAJ4zbwQMJRWATQa72DdJnK5oo6t6AwCcCI5F pflWDqZGMM24RIfhxNSYeSQ= =RuEE -----END PGP SIGNATURE-----

Aug. 20, 2008

REMINDER: Meeting Thurs, Aug 21st, 7:00 PM

by Andy Stewart

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Everybody, At this WLUG meeting, our guest speaker will be Liz Johnson, friend of long time WLUG member Greg Avedissian. The topic for this meeting will be an introduction to GIMP, the GNU Image Manipulation Program. Here are some words about the talk from Liz: ===== A paint and image editing program, GIMP is Linux's software alternative to Adobe Photoshop. Learn basic methods of working on images such as jpeg, bitmap, tiff. GIMP can import PDF documents and the Raw image formats used by many digital cameras. Restore old photos, color-corrrect, resize, crop, correct exposure, redeye, flash. Use special effects such as emboss, sharpen, smooth. color enhance, transparency, sparkle, or softglow. Create your own desktop images, icons, and logos. GIMP can help you lose 15 pounds overnight, or make you look like everyone's favorite movie star. It's open source, 100% natural, non-toxic, and free. ===== The website will be updated shortly. See ya there! Andy - -- Andy Stewart, Founder Worcester Linux Users' Group (http://www.wlug.org) Chelmsford Linux Meetup Group (http://linux.meetup.com/393) Amateur Radio: KB1OIQ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFIpvXJHl0iXDssISsRAnaYAJ4rvcKJz9ZOBmiPAsxeAPP1VC3CxwCfdKe8 Se7xH5gy14+UZHc+kxA6KXI= =wUrH -----END PGP SIGNATURE-----

Aug. 16, 2008

Re: [Wlug] Accessing Host Names

by kstratton＠fastmail.us

I will look into using /etc/hosts. I can not use /etc/resolv.conf since it is overwritten by DHCP and I want it that way (for now). Thank you. On Tue, 12 Aug 2008 09:43:11 -0700 (PDT), "Mike Leo" <mleo963(a)yahoo.com> said: > oops! thanks for the correction > > > > ----- Original Message ---- > From: Eric Martin <freak4uxxx(a)gmail.com> > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Sent: Tuesday, August 12, 2008 8:23:14 AM > Subject: Re: [Wlug] Accessing Host Names > > Mike Leo wrote: > > if you add the raw IP and host name to /etc/resolv.conf (or on windows c:\windows\system32\etc\hosts) you can then access via names > > > > > > > > ----- Original Message ---- > > From: "kstratton(a)fastmail.us" <kstratton(a)fastmail.us> > > To: Worcester Linux Users Group <wlug(a)mail.wlug.org>; Worcester Linux Users Group <wlug(a)mail.wlug.org> > > Sent: Tuesday, August 12, 2008 7:56:04 AM > > Subject: [Wlug] Accessing Host Names > > > > I am trying to access the use SSH using host names instead of using the > > raw IP address. I am currently using DCHP to connect to an inexpensive > > Linksys router and I can see the host names and their IP address when I > > view the connections list. > > > > If the machine name (ie CLYDE) is not the host name, please correct me. > > > > Is there some way to extract this information? If so, how? > > Do I need to run bind to be able to use the host names in place of IP > > addresses? > > > > Any help would be appreciated. > > > > /etc/resolv.conf is the ips of your name servers. You want to add info > to /etc/hosts > > basically add something like > > 192.168.0.100 my-ssh-server <other name for it if you want> > > > -- > Eric Martin > Key fingerprint = D1C4 086E DBB5 C18E 6FDA B215 6A25 7174 A941 3B9F -- kstratton(a)fastmail.us

Aug. 12, 2008

Re: [Wlug] Accessing Host Names

by Mike Leo

oops! thanks for the correction ----- Original Message ---- From: Eric Martin <freak4uxxx(a)gmail.com> To: Worcester Linux Users Group <wlug(a)mail.wlug.org> Sent: Tuesday, August 12, 2008 8:23:14 AM Subject: Re: [Wlug] Accessing Host Names Mike Leo wrote: > if you add the raw IP and host name to /etc/resolv.conf (or on windows c:\windows\system32\etc\hosts) you can then access via names > > > > ----- Original Message ---- > From: "kstratton(a)fastmail.us" <kstratton(a)fastmail.us> > To: Worcester Linux Users Group <wlug(a)mail.wlug.org>; Worcester Linux Users Group <wlug(a)mail.wlug.org> > Sent: Tuesday, August 12, 2008 7:56:04 AM > Subject: [Wlug] Accessing Host Names > > I am trying to access the use SSH using host names instead of using the > raw IP address. I am currently using DCHP to connect to an inexpensive > Linksys router and I can see the host names and their IP address when I > view the connections list. > > If the machine name (ie CLYDE) is not the host name, please correct me. > > Is there some way to extract this information? If so, how? > Do I need to run bind to be able to use the host names in place of IP > addresses? > > Any help would be appreciated. > /etc/resolv.conf is the ips of your name servers. You want to add info to /etc/hosts basically add something like 192.168.0.100 my-ssh-server <other name for it if you want> -- Eric Martin Key fingerprint = D1C4 086E DBB5 C18E 6FDA B215 6A25 7174 A941 3B9F

Aug. 12, 2008

Re: [Wlug] Accessing Host Names

by Mike Leo

if you add the raw IP and host name to /etc/resolv.conf (or on windows c:\windows\system32\etc\hosts) you can then access via names ----- Original Message ---- From: "kstratton(a)fastmail.us" <kstratton(a)fastmail.us> To: Worcester Linux Users Group <wlug(a)mail.wlug.org>; Worcester Linux Users Group <wlug(a)mail.wlug.org> Sent: Tuesday, August 12, 2008 7:56:04 AM Subject: [Wlug] Accessing Host Names I am trying to access the use SSH using host names instead of using the raw IP address. I am currently using DCHP to connect to an inexpensive Linksys router and I can see the host names and their IP address when I view the connections list. If the machine name (ie CLYDE) is not the host name, please correct me. Is there some way to extract this information? If so, how? Do I need to run bind to be able to use the host names in place of IP addresses? Any help would be appreciated. -- kstratton(a)fastmail.us _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

Aug. 12, 2008