- WLUG - wlug.mailman3.com

Intro to IPv6

by Chuck Anderson

Thanks for a great meeting all. I've posted version 2 of my slides up on the WLUG website with some additions and enhancements and many more links in the reference section: http://www.wlug.org/files/intro-to-ipv6.pdf I plan to give this talk at BLU on November 16 if you want a second chance at it. Thanks, Chuck On Wed, Sep 14, 2011 at 07:05:23PM -0400, Eric Martin wrote: > I really wanted to go to this but I can't, too much homework. > > On Wed, Sep 14, 2011 at 5:53 PM, Chuck Anderson <cra(a)wpi.edu> wrote: > > > Sorry for the late reminder. Please join us tonight for a talk about > > IPv6! > > > > On Fri, Sep 09, 2011 at 08:48:46AM -0400, Chuck Anderson wrote: > > > > > Hi folks, > > > Our next WLUG meeting is Wednesday, September 14 at 7:00 PM at the WPI > > > campus in Worcester, MA USA. The meeting room is in WPI's Morgan Hall > > > (building 'H' on the campus map [1]), down the hallway to the right of > > > the dining hall entrance. > > > > > > [1] http://www.wpi.edu/Images/CMS/WPI/walkingmap.pdf > > > > > > This month, I'll be giving a talk on Internet Protocol Version 6, > > > including basics of how it works, how to configure it on various > > > systems, and various issues & benefits to using IPv6. > > > > > > After the meeting, we'll go out for pizza. > > > > > > See you all there, > > > Chuck > > > President, Worcester Linux Users' Group

Sept. 17, 2011

Re: [Wlug] Problem with second hard drive.

by Chuck Anderson

On Fri, Sep 16, 2011 at 09:50:36PM -0400, Ken Jones wrote: > [root@pacman graphics]# tail /var/log/dmesg > md: autorun ... > md: ... autorun DONE. > EXT3 FS on dm-0, internal journal > kjournald starting. Commit interval 5 seconds > EXT3 FS on hdb1, internal journal > EXT3-fs: mounted filesystem with ordered data mode. > SELinux: initialized (dev hdb1, type ext3), uses xattr > SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs > Adding 524280k swap on /dev/VolGroup00/LogVol01. Priority:-1 extents:1 > across:524280k > SELinux: initialized (dev binfmt_misc, type binfmt_misc), uses > genfs_contexts > [root@pacman graphics]# > > ----------------------- > I have no idea what dmesg is talking about. The data seems to > match the 'mount' statement and yesterday's date, Sept 15th. Yes, but was does "dmesg | grep hdb" say? That will search the entire dmesg output for anything related to hdb, rather than just showing the last 10 lines of dmesg which you posted above. dmesg shows all "recent" kernel log messages. They may also be in /var/log/messages, so you can show that too: grep hdb /var/log/messages Another thing to try is a S.M.A.R.T. test on the hard drive: Install the package: yum install smartmontools Post this output: smartctl -a /dev/hdb smartctl -l selftest /dev/hdb Perform a short test: smartctl -t short /dev/hdb (wait until short test is completed--it will say on the screen when that will be) Show test results again: smartctl -l selftest /dev/hdb

Sept. 17, 2011

Problem with second hard drive.

by Ken Jones

Here's what mount has to say: [root@pacman kjones]# mount -l -t ext3 /dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw) /dev/hdb1 on /boot type ext3 (rw) [/boot] /dev/hdb1 on /mnt/HDB1 type ext3 (rw) [/boot] /dev/hdb2 on /mnt/HDB2 type ext3 (rw) <==== [root@pacman kjones]# --------------------------------- Here's what is in dmesg. [root@pacman graphics]# ls -l /var/log/dmesg -rw-r--r-- 1 root root 11691 Sep 15 22:26 /var/log/dmesg [root@pacman graphics]# tail /var/log/dmesg md: autorun ... md: ... autorun DONE. EXT3 FS on dm-0, internal journal kjournald starting. Commit interval 5 seconds EXT3 FS on hdb1, internal journal EXT3-fs: mounted filesystem with ordered data mode. SELinux: initialized (dev hdb1, type ext3), uses xattr SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs Adding 524280k swap on /dev/VolGroup00/LogVol01. Priority:-1 extents:1 across:524280k SELinux: initialized (dev binfmt_misc, type binfmt_misc), uses genfs_contexts [root@pacman graphics]# ----------------------- I have no idea what dmesg is talking about. The data seems to match the 'mount' statement and yesterday's date, Sept 15th. Thanks everyone!! Ken

Sept. 17, 2011

Re: [Wlug] Problems getting a second hard drive fully functional.

by kstratton＠fastmail.us

Assuming that the drive has already been partioned with fdisk/cfdisk and formatted with whatever filesystem you choose to put on it, I try the following. when logged in as root: 1) does /etc/fstab properly show the filesystem type of hdb2? if it does not, I would specify the filesystem in the mount command. (mount -t type device dir) 2) Unmount the disk and reinstall the filesystem on the hard drive. Check for errors in the output. 3) check out hdparm, it might be worth a try. On Friday, September 16, 2011 2:13 PM, "Mike Frysinger" <vapier(a)gentoo.org> wrote: > On Friday, September 16, 2011 13:52:43 Ken Jones wrote: > > As /dev/hdb2 it has 777 privileges. > > [root@pacman dev]# ls -la /dev/hdb2 > > brwxrwxrwx 1 root disk 3, 66 Sep 15 18:26 /dev/hdb2 <=== > > doesnt matter > > > ------------------ > > Mounted as /mnt/HDB2 it also shows 777 privileges. > > > > [root@pacman mnt]# ls -l > > drwxrwxrwx 3 root root 4096 Sep 15 21:25 HDB2 <=== > > > > ------------------ > > But I can not make a ordinary directory on it. > > What am I not doing? > > what is the `mount` output for that mount point ? is there anything > interesting in the `dmesg` log ? > -mike > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > Email had 1 attachment: > + signature.asc > 1k (application/pgp-signature) -- kstratton(a)fastmail.us

Sept. 17, 2011

Re: [Wlug] Problems getting a second hard drive fully functional.

by Mike Frysinger

On Friday, September 16, 2011 13:52:43 Ken Jones wrote: > As /dev/hdb2 it has 777 privileges. > [root@pacman dev]# ls -la /dev/hdb2 > brwxrwxrwx 1 root disk 3, 66 Sep 15 18:26 /dev/hdb2 <=== doesnt matter > ------------------ > Mounted as /mnt/HDB2 it also shows 777 privileges. > > [root@pacman mnt]# ls -l > drwxrwxrwx 3 root root 4096 Sep 15 21:25 HDB2 <=== > > ------------------ > But I can not make a ordinary directory on it. > What am I not doing? what is the `mount` output for that mount point ? is there anything interesting in the `dmesg` log ? -mike

Sept. 16, 2011

Re: [Wlug] Problems getting a second hard drive fully functional.

by Chuck Anderson

On Fri, Sep 16, 2011 at 05:52:43PM +0000, Ken Jones wrote: > As /dev/hdb2 it has 777 privileges. > > [root@pacman dev]# ls -la /dev/hdb2 > brwxrwxrwx 1 root disk 3, 66 Sep 15 18:26 /dev/hdb2 <=== It is a very bad idea and not necessary at all for the device node to have world-writable permissions. Keep it at 600 or 660 (whatever your other disk devices have). > drwxrwxrwx 3 root root 4096 Sep 15 21:25 HDB2 <=== > ------------------ > But I can not make a ordinary directory on it. > What am I not doing? It says riht here: > [root@pacman mnt]# mkdir -m 777 /mnt/HDB2/PICTURES > mkdir: cannot create directory `/mnt/HDB2/PICTURES': Read-only file > system The filesystem is mounted read-only. If you didn't mount it yourself read-only, the kernel could have changed it to read-only as a precautionary measure if errors were encountered on the filesystem. I suggest you unmount it and check for errors. Check for kernel errors on the device: dmesg|grep hdb Check the filesystem for errors: umount /dev/hdb2 fsck -f /dev/hdb2 If all is well, re-mounting it read-write: mount -o rw /dev/hdb2

Sept. 16, 2011

Problems getting a second hard drive fully functional.

by Ken Jones

I have added a 160G hbd to my system. [root@pacman mnt]# fdisk /dev/hdb Command (m for help): p Disk /dev/hdb: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hdb1 * 1 13 104391 83 Linux /dev/hdb2 14 19457 156183930 83 Linux --------------------- As /dev/hdb2 it has 777 privileges. [root@pacman dev]# ls -la /dev/hdb2 brwxrwxrwx 1 root disk 3, 66 Sep 15 18:26 /dev/hdb2 <=== ------------------ Mounted as /mnt/HDB2 it also shows 777 privileges. [root@pacman mnt]# ls -l total 146 drwxr-xr-x 2 root root 4096 Aug 30 22:04 150G drwxr-xr-x 2 root root 4096 Jul 21 2006 cdrom drwxrwxr-x 2 kjones kjones 4096 May 23 2006 fitch01 drwxr-xr-x 2 root root 4096 Sep 4 22:46 HDB drwxr-xr-x 4 root root 1024 Aug 26 23:25 HDB1 drwxrwxrwx 3 root root 4096 Sep 15 21:25 HDB2 <=== ------------------ But I can not make a ordinary directory on it. What am I not doing? [root@pacman mnt]# ls -la /mnt/HDB2 total 60 drwxrwxrwx 3 root root 4096 Sep 15 21:25 . drwxrwxrwx 22 root root 4096 Sep 7 22:37 .. drwxr-xr-x 2 root root 49152 Sep 15 21:25 lost+found [root@pacman mnt]# mkdir -m 777 /mnt/HDB2/PICTURES mkdir: cannot create directory `/mnt/HDB2/PICTURES': Read-only file system [root@pacman mnt]#

Sept. 16, 2011

Myth Box Resources and HD DVR Info?

by joel d

Thanks to all for the ideas and comments. Not sure I will be happy spending time on a custom DVR and not sure I will be happy with a canned solution. I now have food for thought, Joel

Sept. 16, 2011

Re: [Wlug] Myth Box Resources and HD DVR Info?

by Gregory Boyce

I've gone through a few Tivos over the years and only bought the lifetime agreement on one of them. Guess which one no longer works. On Sep 16, 2011 9:11 AM, "John Stoffel" <john(a)stoffel.org> wrote: > > > Clint> Of course, there's a monthly fee for each TiVo... > > Not if you buy the lifetime service. Yes, it's two years up front, > but it pays off in the long run. I went 9 years with my last Tivo > before it died. All that saved money paid for the new tivo with money > left over! *grin* > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug

Sept. 16, 2011

Re: [Wlug] Myth Box Resources and HD DVR Info?

by John Stoffel

Clint> Of course, there's a monthly fee for each TiVo... Not if you buy the lifetime service. Yes, it's two years up front, but it pays off in the long run. I went 9 years with my last Tivo before it died. All that saved money paid for the new tivo with money left over! *grin*

Sept. 16, 2011