- WLUG - wlug.mailman3.com

Beaglebone Black

by Andy Stewart

Hi Everybody, I would like to know if any proprietary binary blobs are required to use a Beaglebone Black. According to my findings, the Raspberry Pi has a proprietary binary blob involved with booting the machine, and also controlling the video. It wasn't so easy to find this information. I would prefer to use such a board with no proprietary software. That's why I'm considering the Beaglebone Black. Does anybody know the definitive answer? I've searched a lot of websites to no avail. Thanks! Andy -- Andy Stewart (KB1OIQ) Founder: Worcester Linux Users' Group Founder: Chelmsford Linux Meetup Group President: PART of Westford, MA (WB1GOF)

April 30, 2015

Re: [Wlug] ZFS on Linux vs. BTRFS or stick with EXT4?

by Jeff Moyer

Chuck Anderson <cra(a)WPI.EDU> writes: > Hi Jeff, its nice to provoke a response out of you...when are you > coming to a meeting? :-) Heh. Not sure. I had considered asking if the group would be interested in a talk on persistent memory. >> If I were you, I'd use xfs. > > I don't like XFS because it can't be shrunk in place. Too many times > I've needed to shrink one LV to make space for another LV. OK. You could use dm-thinp for this, but I understand an aversion to adding another layer. Cheers, Jeff

April 29, 2015

Re: [Wlug] ZFS on Linux vs. BTRFS or stick with EXT4?

by Chuck Anderson

Hi Jeff, its nice to provoke a response out of you...when are you coming to a meeting? :-) On Wed, Apr 29, 2015 at 09:40:09AM -0400, Jeff Moyer wrote: > I wouldn't trust my data to btrfs, especially if you're using anything > other than the default mkfs and mount options. But don't take my word > for it, have a look through the btrfs mailing list archives[1]. I see what you mean. People are still asking questions "how do I fix this broken fs?" and being told to upgrade to linux kernel 4.0. > I have no experience with zfs on linux, but I've heard that data > checksums have a signficant performance impact. I don't have any data > on that, so you should probably do your own benchmarking to verify > things perform well enough for your workload. > > If I were you, I'd use xfs. I don't like XFS because it can't be shrunk in place. Too many times I've needed to shrink one LV to make space for another LV.

April 29, 2015

Re: [Wlug] ZFS on Linux vs. BTRFS or stick with EXT4?

by Jeff Moyer

Chuck Anderson <cra(a)WPI.EDU> writes: > I'm migrating to new large drives and would lke to take advantage of a > filesystem that has integrated data and metadata checksums. How well > does ZFS on Linux really work? What is the current status of BTRFS? > Which one would you trust your precious data to? I've been out of the > loop lately... This would be a great meeting topic! "How to set up > ZFS on Linux and/or BTRFS". Any takers? I wouldn't trust my data to btrfs, especially if you're using anything other than the default mkfs and mount options. But don't take my word for it, have a look through the btrfs mailing list archives[1]. I have no experience with zfs on linux, but I've heard that data checksums have a signficant performance impact. I don't have any data on that, so you should probably do your own benchmarking to verify things perform well enough for your workload. If I were you, I'd use xfs. Cheers, Jeff [1] http://marc.info/?l=linux-btrfs

April 29, 2015

Re: [Wlug] ZFS on Linux vs. BTRFS or stick with EXT4?

by Chuck Anderson

2 x 4TB, RAID 1, I prefer to boot from them (hmmm...although not booting from them is an excuse to buy an SSD for the boot drive...) I already use ZFS on FreeNAS, but I'm wary of using ZFS on Linux since it is a third-party addon, you must recompile it every time the kernel changes, etc. I never liked having to do that for the Nvidia driver. Losing your video display is one thing, losing access to your data is much worse... On Wed, Apr 29, 2015 at 06:19:19AM -0400, Tim Keller wrote: > Since I use zfs on a daily basis, I'd be glad to talk about it. > > How big are these drives? While you can use zfs as your boot FS, I think > I'd stick with lvm/ext4 for / and / boot. I'd then carve out a big data > space and use zfs for that. Are these disks going to raided? > > Thanks, > Tim. > > On Tuesday, April 28, 2015, Chuck Anderson <cra(a)wpi.edu> wrote: > > I'm migrating to new large drives and would lke to take advantage of a > > filesystem that has integrated data and metadata checksums. How well > > does ZFS on Linux really work? What is the current status of BTRFS? > > Which one would you trust your precious data to? I've been out of the > > loop lately... This would be a great meeting topic! "How to set up > > ZFS on Linux and/or BTRFS". Any takers?

April 29, 2015

Re: [Wlug] ZFS on Linux vs. BTRFS or stick with EXT4?

by Tim Keller

Since I use zfs on a daily basis, I'd be glad to talk about it. How big are these drives? While you can use zfs as your boot FS, I think I'd stick with lvm/ext4 for / and / boot. I'd then carve out a big data space and use zfs for that. Are these disks going to raided? Thanks, Tim. On Tuesday, April 28, 2015, Chuck Anderson <cra(a)wpi.edu> wrote: > I'm migrating to new large drives and would lke to take advantage of a > filesystem that has integrated data and metadata checksums. How well > does ZFS on Linux really work? What is the current status of BTRFS? > Which one would you trust your precious data to? I've been out of the > loop lately... This would be a great meeting topic! "How to set up > ZFS on Linux and/or BTRFS". Any takers? > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

April 29, 2015

ZFS on Linux vs. BTRFS or stick with EXT4?

by Chuck Anderson

I'm migrating to new large drives and would lke to take advantage of a filesystem that has integrated data and metadata checksums. How well does ZFS on Linux really work? What is the current status of BTRFS? Which one would you trust your precious data to? I've been out of the loop lately... This would be a great meeting topic! "How to set up ZFS on Linux and/or BTRFS". Any takers?

April 28, 2015

Re: [Wlug] Upcoming stuff for WLUG!

by Tim Keller

Jeff, Would you be interested in doing a demo/talk? Thanks, Tim. On Thu, Apr 23, 2015 at 3:39 PM, JeffA Maillists <jeffa.maillists(a)gmail.com> wrote: > I now have a "KOSSSEL" Delta 3D printer and can bring it to a meeting to > show off and demonstrate. I've just started to get things "dialed in" to > get really good, consistent prints out of it. It's a bit of an art... > > Jeff > On Apr 23, 2015 2:10 PM, "Tim Keller" <turbofx(a)gmail.com> wrote: > >> Hey Gang, >> >> A couple things... >> >> 1. Speakers. >> As of right now I don't have any speakers lined up. If anybody wants to >> speak about something, or would like to suggest a topic they'd be >> interested in hearing spoke about let me know and I'll work on getting it >> set up. >> >> As for topics that I'm interested in... >> 3d printing! I know that WPI has a printer (that's running on a Pi >> even!) What OSS is out there to do modeling, etc? >> >> 2. WLUG BBQ >> Does August still work for everybody? I know it's early, but I figure >> it's better to start now and get things lined up then end up rushing around >> later... >> >> Thanks, >> Tim. >> >> >> >> >> -- >> I am leery of the allegiances of any politician who refers to their >> constituents as "consumers". >> >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >> >> > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

April 28, 2015

Re: [Wlug] Upcoming stuff for WLUG!

by JeffA Maillists

I now have a "KOSSSEL" Delta 3D printer and can bring it to a meeting to show off and demonstrate. I've just started to get things "dialed in" to get really good, consistent prints out of it. It's a bit of an art... Jeff On Apr 23, 2015 2:10 PM, "Tim Keller" <turbofx(a)gmail.com> wrote: > Hey Gang, > > A couple things... > > 1. Speakers. > As of right now I don't have any speakers lined up. If anybody wants to > speak about something, or would like to suggest a topic they'd be > interested in hearing spoke about let me know and I'll work on getting it > set up. > > As for topics that I'm interested in... > 3d printing! I know that WPI has a printer (that's running on a Pi even!) > What OSS is out there to do modeling, etc? > > 2. WLUG BBQ > Does August still work for everybody? I know it's early, but I figure > it's better to start now and get things lined up then end up rushing around > later... > > Thanks, > Tim. > > > > > -- > I am leery of the allegiances of any politician who refers to their > constituents as "consumers". > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

April 23, 2015

Upcoming stuff for WLUG!

by Tim Keller

Hey Gang, A couple things... 1. Speakers. As of right now I don't have any speakers lined up. If anybody wants to speak about something, or would like to suggest a topic they'd be interested in hearing spoke about let me know and I'll work on getting it set up. As for topics that I'm interested in... 3d printing! I know that WPI has a printer (that's running on a Pi even!) What OSS is out there to do modeling, etc? 2. WLUG BBQ Does August still work for everybody? I know it's early, but I figure it's better to start now and get things lined up then end up rushing around later... Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

April 22, 2015