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Ubuntu 9.04 with file issues Cross posted by intent- we're supposed to compare notes on such problems - I hope.
by Oren Beck 11 Sep '10

11 Sep '10

Hi- I have a system in front of me with Ubuntu 9.04 on it- it was installed ext3. the part that is escapingmy understanding is recovering from a file corruption of some sort. Duplicate or bad blocks is the error message. The automatic run- in recovery mode- of fsck dies with exit status 4. A manual run of fsck shows a list of what it calls multiply-claimed blocks in several inodes. and there's aprompt asking yor no about cloning them. Needless to say- I am quite aware that my lack of understanding risks avoidable data loss. Any suggestions both on what to do and the best training document/s so I can understand why/how this issue happened in the first place will be appreciated. This is one of those gaps in my understanding of Linux admin skills. Either this is so drop dead simple that I will feel more of an idiot for not having "known" what is going on..Or it's going to be non-trivial to recover from. My first suggested fix was using Puppy etc and an external drive to simply grab any unique personal files that are intact- then DBAN wipe that drive before starting over. Which is what I cal a "Last Resort First" tactic . I hate having to use them, but LRF type methods have become a major mental hygiene tool for me :) Of course- I am deeply curious if my oft preached model for data protection- keeping the OS and Userdata on physically separate drives would have helped here -or not.. -- Oren Beck 816.729.3645

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Re: Ubuntu 9.04 with file issues Cross posted by intent- we're supposed to compare notes on such problems - I hope.
by Jack 10 Sep '10

10 Sep '10

I forgot to mention a few more points. 1) fsck -y isn't designed, at least in single pass mode, to ensure the filesystem is completely fixed (see next point), It is designed to make sure that further writes to the fs don't make it worse, among other things. 2) After running fsck, and it reports, "FILE SYSTEM MODIFIED", you must run fsck again to make sure you don't have further errors. When running fsck it must be run, repeatedly until you no longer get the message above. Only then are all the problems with the fs fixed. 3) If you have in the list of messages a note about hard link count being wrong and the count is too few, you *will* cause the deletion of the file, by using the -y fix. This, on a file that would have been totally recoverable had you not chosen the -y option. 4) In the particular case at hand, where there are multiply linked files, you may also wind up rewriting over the top of a good file with information that is not good, hence causing you to lose a file, had you chosen to not clone the file. The opposite is also true. Lastly, my source for my notes comes from the linux-ext4 mailing list, but what do those guys know anyway? Jack

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Mid-America GNU/Linux Networkers Conference
by MAGNet Con 01 Sep '10

01 Sep '10

Hello, all. Attached is a press release about a new FLOSS conference coming up in May 2011. If you are interested in volunteering, speaking or sponsoring the event, please let us know as soon as possible. Thank you for your time! Regards, Russ MAGNet Con http://magnetcon.info

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USB 3.0 Use with Linux
by Peter Cross 26 Aug '10

26 Aug '10

Has anyone tried any USB 3.o devices with any flavor or Linux? I've seen some sites stating that since 2.6.31 usb 3.0 is supported but linux.org/newsstates the following: "The xHCI driver is already included in linux-next and since Linux<http://www.linux.org/news/2009/06/10/0004.html#>2.6.30 has just been released, it should go into the main development tree from which Linux version 2.6.31 will emerge around late August. Users that want to have a look at the new driver can find it in the Git repository." Just wanting to know general experiences if someone has taken the leap... I'm looking at a 2TB external WD drive and am also curious as to which vendor (sabrent, evga, etc) generally has the fewest issues with newer technology. Thanks! Peter -- Cheers! Peter J. Cross San Antonio, TX "Experience has taught mankind the necessity of auxiliary precautions" -James Madison, Federalist Paper No. 51 Please consider the environment before printing this email

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Happy Birthday Linux
by Jim Herrmann 25 Aug '10

25 Aug '10

From:torvalds@klaava.Helsinki.FI <From%3Atorvalds(a)klaava.Helsinki.FI> (Linus Benedict Torvalds) Newsgroup: comp.os.minix Subject: What would you like to see most in minix? Summary: small poll for my new operating system Message-ID: 1991Aug25, 20578.9541(a)klaava.Helsinki.FI Date: 25 Aug 91 20:57:08 GMT Organization: University of Helsinki. Hello everybody out there using minix- I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones. This has been brewing since april, and is starting to get ready. I'd like any feedback on things people like/dislike in minix; as my OS resembles it somewhat (same physical layout of the file-sytem due to practical reasons)among other things. I've currently ported bash (1.08) an gcc (1.40), and things seem to work. This implies that i'll get something practical within a few months, and I'd like to know what features most people want. Any suggestions are welcome, but I won't promise I'll implement them :-) Linus Torvalds torvalds(a)kruuna.helsinki.fi

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Re: [KULUA] How to tell what's stock and what's added in *buntu?
by Kendric Beachey 07 Aug '10

07 Aug '10

Just finished performing the operation, so I wanted to summarize for everyone. It appears to work great! The only things it missed were stuff that was installed outside the normal workflow, like Picasa. 0) since this is Ubuntu I'm talking about, I'm using my Ubuntu One account as the place to store the work file, so it'll be right there after the install: cd ~/Ubuntu\ One 1) before doing the fresh install: sudo dpkg --get-selections > installed-pkgs.txt 2) perform the installation, and then: cd ~/Ubuntu\ One sudo dpkg --set-selections < installed-pkgs.txt sudo apt-get dselect-upgrade 3) go do something else for a while :-) (actually there were a few packages that required user input to finish) Kendric Beachey On Sat, Aug 7, 2010 at 9:50 AM, Kendric Beachey <kendric.beachey(a)gmail.com>wrote: > I'm preparing to actually do this now...just to see what that grep catches > I tried it reversed: > > ak@mfj:~$ sudo dpkg --get-selections | grep -i kernel > kerneloops-daemon install > nfs-kernel-server install > nvidia-173-kernel-source install > nvidia-kernel-common deinstall > vmware-player-kernel-modules-2.6.17-11 deinstall > vmware-player-kernel-modules-2.6.20-15 deinstall > vmware-player-kernel-modules-2.6.20-16 deinstall > ak@mfj:~$ > > Given that most of this isn't the kernel itself I'm going to leave these > things in. (even though it gets me a triple helping of vmware) > > Kendric Beachey > > > > On Thu, Aug 5, 2010 at 10:21 PM, Christofer C. Bell < > christofer.c.bell(a)gmail.com> wrote: > >> On Thu, Aug 5, 2010 at 2:35 PM, Kendric Beachey >> <kendric.beachey(a)gmail.com> wrote: >> > So like this?.... >> > >> > 1) before doing the fresh install: >> > >> > sudo dpkg --get-selections | grep -vi kernel > installed-pkgs.txt >> > >> > 2) Backup the file, install new system then: >> > >> > sudo dpkg --set-selections < installed-pkgs.txt >> > sudo apt-get dselect-upgrade >> > >> > Just wanna get one succinct recipe for posterity. :-) >> >> I'd leave out the "|grep -vi kernel" part, but yes, that's correct. >> >> -- >> Chris >> >> -- >> You received this message because you are subscribed to the Google Groups >> "kulua-l" group. >> To post to this group, send email to kulua-l(a)googlegroups.com. >> To unsubscribe from this group, send email to >> kulua-l+unsubscribe(a)googlegroups.com<kulua-l%2Bunsubscribe(a)googlegroups.com> >> . >> For more options, visit this group at >> http://groups.google.com/group/kulua-l?hl=en. >> >> >

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Re: [KULUA] How to tell what's stock and what's added in *buntu?
by Kendric Beachey 05 Aug '10

05 Aug '10

Cool, this looks even better. But just to make sure I understand, where does the new required step go in relation to the other two? Kendric Beachey On Wed, Aug 4, 2010 at 6:52 PM, Christofer C. Bell < christofer.c.bell(a)gmail.com> wrote: > On Wed, Aug 4, 2010 at 6:04 PM, Nick Anderson <nick(a)cmdln.org> wrote: > >> The thing I would like to do is get a list of the various pieces of >>>> software I've installed over and above the stock selection that ships with >>>> Edubuntu, so I can reduce the time spent redoing all that installation work. >>>> Does anyone know of a good way to get the system to tell you a list of all >>>> the .debs you have installed beyond what it shipped with? >>>> >>> >> Should be something like this >> >> sudo dpkg --get-selections | grep -vi kernel > installed-pkgs.txt >> >> Backup the file, install new system then >> sudo dpkg --set-selections < installed-pkgs.txt > > > > Looks like I misunderstood the original question. The above works (but is > missing a required step) but comes with a caveat, as well. This does not > set the correct state of "autoinstalled" for packages that were pulled in as > dependencies, meaning you will not be able to use aptitude to remove > subsystems any more. Every package will be marked as explicitly installed > (and thus nothing will ever be a candidate for auto-removal). > > The required step is: > > $ sudo apt-get dselect-upgrade > > This tells the system to bring the installed set of packages into > compliance with the selections you set in the earlier commands (ie; nothing > will actually be installed until you run this). I'm not sure why you'd want > to strip out the kernel packages, either. > > -- > Chris > > > > > -- > You received this message because you are subscribed to the Google Groups > "kulua-l" group. > To post to this group, send email to kulua-l(a)googlegroups.com. > To unsubscribe from this group, send email to > kulua-l+unsubscribe(a)googlegroups.com<kulua-l%2Bunsubscribe(a)googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/kulua-l?hl=en. >

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Re: [KULUA] How to tell what's stock and what's added in *buntu?
by Kendric Beachey 05 Aug '10

05 Aug '10

Awesome, that's probably what I will go with, thanks Paul! (rather than doing something with R, I will probably just diff the two files and see about scripting something with the result.) Kendric Beachey On Wed, Aug 4, 2010 at 5:07 PM, Paul Johnson <pauljohn(a)ku.edu> wrote: > On 08/04/2010 03:17 PM, Kendric Beachey wrote: > > >> The thing I would like to do is get a list of the various pieces of >> software I've installed over and above the stock selection that ships with >> Edubuntu, so I can reduce the time spent redoing all that installation work. >> Does anyone know of a good way to get the system to tell you a list of all >> the .debs you have installed beyond what it shipped with? >> >> > I think you have the right strategy. I've done this on rpm based systems, > now I'm running Ubuntu, I know I've seen a standard routine for this in the > ubuntu mailing list. I will check and see. > > Here's what I would do in the short term, just because I can. > > Do I understand it right that you want to know what packages you have now > (or do you mean the packages you used to have?) > > If the answer is "now", I'd do this: > > dpkg -l > > that spits out everything you have, like > > > ii xserver-xorg-vid 1:1.7.3-1 X.Org X server -- SiliconMotion > display driver > > Divert that output to a file > > dpkg -l >> mydebs.txt > > After you install fresh, do the same > > > dpkg -l >> mynewdebs.txt > > I'd then use some program to get the items that are in mydebs.txt that are > not in mynewdebs.txt. > > I'd probably do that with R, but I bet you'd get it done easily with a > spreadsheet. > > pj > > > Thanks! >> >> Kendric Beachey >> >> >> > -- > Paul E. Johnson email: pauljohn(a)ku.edu > Professor, Political Science http://pj.freefaculty.org > Assoc. Director, Center for Research Methods and Data Analysis > 1541 Lilac Lane, Rm 504 > University of Kansas Office: (785) 864-9086 > Lawrence, Kansas 66045-3129 FAX: (785) 864-5700 > > > -- > You received this message because you are subscribed to the Google Groups > "kulua-l" group. > To post to this group, send email to kulua-l(a)googlegroups.com. > To unsubscribe from this group, send email to > kulua-l+unsubscribe(a)googlegroups.com<kulua-l%2Bunsubscribe(a)googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/kulua-l?hl=en. > >

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How to tell what's stock and what's added in *buntu?
by Kendric Beachey 04 Aug '10

04 Aug '10

My daughter's Edubuntu machine had some slight issues during the upgrade from 9.10 to 10.04. It was alllllmost done with the upgrade (percentage in the upper 90s) when it locked up hard and all I could do was reset it. I thought maybe I'd have to do the upgrade over but from that point on it has operated as a 10.04 machine. That was early May. Everything seems to work for the most part, although while booting up and shutting down, it has a text-based screen instead of the graphical one. Also the sound has some real hiccups, at least during login, and it's been having some stone cold lockups lately, especially while doing lengthy network-intensive operations. I could try to fix it as it stands, but at this point I'd rather do a fresh install. I've got the Edubuntu 10.04 dvd on the desk, and /home is on its own partition, so the data there will survive and I'll just have to recreate the user accounts. The thing I would like to do is get a list of the various pieces of software I've installed over and above the stock selection that ships with Edubuntu, so I can reduce the time spent redoing all that installation work. Does anyone know of a good way to get the system to tell you a list of all the .debs you have installed beyond what it shipped with? Thanks! Kendric Beachey

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attention
by David Nicol 02 Aug '10

02 Aug '10

http://www.ncomputing.com/Partners/Findareseller.aspx

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