Ubuntu :: Copying Lots And Lots Of Data (and Preserving Emblems)?
Oct 26, 2010
I am currently in the process of moving around 20TB of data from one server to another. Security is not a concern, since the data are freely available to anyone on our network anyway. There are a couple of things that I'm trying to decide on:
(1) protocol choice
Of all the choices I have--nfs, ftp, scp, rsync, samba--has anyone done any benchmarking to show which would be the fastest/most robust transfer protocol? I know nfs has slow write speeds for synchronous transfers. Asynchronous would be faster, but less robust. I'm leaning toward rsync since it performs md5sums to confirm the file transfers. (Remember if there's a 1 in a billion chance that a byte will get corrupted, then I'll have 20,000 corrupt bytes in the transfer.)
(2) Nautilus emblems
We use emblems in Nautilus to categorize files. The old and the new server have the same directory structure.Is there any way to copy the Nautilus emblems from the old server to the new server. What I want is that if a user had marked a particular file with a star on the old server, then that file would be marked with a star on the new server when he/she logs in.
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Mar 19, 2011
I have a Philips SNU5600 wifi dongle. My wifi network isn't particularly strong, but it has always been reliable, even when downloading and uploading large files such as ISOs to the internet.
I recently bought a NAS, and when I run rsync or try and copy a large file (eg 6 gigs) to the NAS, the connection will eventually fail.
The error message in /var/log/debug is:
Code:
I have read elsewhere that this is a problem with the Minstrel algorithm, so I have tried disabling that by creating /etc/modprobe.d/80211.conf with the following line in it:
Code:
And when I reboot, I am able to run "cat /sys/module/mac80211/parameters/ieee80211_default_rc_algo" and the output is "pid".
However, in my /var/log/debug, there is still the line:
Code:
Here is the output from a few other commands for extra information:
Code:
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- The problem has only been around since I got the NAS, and only happens when copying files TO the NAS. Downloading/uploading to internet doesn't cause the same problem.
- This problem happens on two machines both with the same wifi dongle.
- This problem doesn't happen on a laptop running the Intel iwl3945 driver, nor with machines connected via cables, so it is not the NAS which is at fault.
How to get a stable connection when backing up?
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May 20, 2010
Recently while at school, my trackpad stopped working completely. When I log out to my login screen it works, and as well as kde. I use compiz btw in gnome.[SOLVED I THINK] --> My boot splash doesn't show up until its fully loaded and won't show in the correct resolution.Every so often, the UI flips out and won't let me click menus or text fields or use my keyboard at all.
The trackpad is a setting i bet. BUT I looked everywhere for a setting that is making it not work.[SOLVED I THINK] --> The splash is ok, I'm not worried about it, but I wished it looked nicer on my computer D:The UI freak out is annoying and trouble some as it happens randomly in use.
I am on a laptop:
HP Pavilion dv9000
Intel Centrino Core 2 Duo 1.73GHz
NVIDIA GeForce Go 7600
2GB of memory
ps - I am not a fan of HP, Intel, or NVIDIA, this laptop was free so not complaining about not having AMD or ATi or another laptop brand
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Jan 17, 2011
I upgraded to 10.10 a few months ago. All was well until a week or so ago, my PC was incredibly slow to respond to anything - mouse clicks, etc. After investigating, I found Evolution using 90% of my RAM - I have 4G. I restarted the PC, started up Evolution and everything was better for a very short while. I then found Evolution using 2Gb+ again later that day. I have noticed that immediately upon startup of Evolution, watching top, evolution uses 900Mb+ Virt and 450+Mb Res. If I open a single email, it jumps to 1300+ Virt, 500+ Res. The more I read a few more emails, the more it jumps.
I have updated everything possible via Synaptic. I only have a handful of accounts - probably 3 POP3 that download to local folders, and about 5 IMAP (GMail) based ones. Nothing excessive IMHO. Now, Evolution is basically useless. All I can do is open it, check email, and close it as soon as possible. I'd rather not switch to another email client - I did that back in 10.04 when I switched off Thunderbird in favor of Evolution because of all the Evolution integration in Ubuntu/Gnome.
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Apr 22, 2010
I want to install Ubuntu on many different new user's systems from a distance. I am looking for the simplest cleanest way to pull this off. These systems will only boot Ubuntu....no dual boot systems. Plus, I need a way to accommodate different size Hard drives such that the entire hard drive is used. There will be a novice computer user on site who can insert a cd or dvd for me and boot the machine.
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Sep 20, 2009
Here is an excerpt from powertop
Top causes for wakeups:
69.2% (563.1) <kernel core> : hrtimer_start_range_ns (tick_sched_timer)
7.7% ( 62.5) <interrupt> : nvidia
4.9% ( 39.6) USB device 4-2 : Microsoft 3-Button Mouse with IntelliEye(TM)
4.9% ( 39.5) <interrupt> : uhci_hcd:usb4
[Code]...
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Jul 18, 2010
I recently installed Squeeze. Almost every time I install software I have unresolvable dep errors. In my Software Sources Everything is checked Main, Contrib, Non-Free and source. But in 3rd party the only thing in there is the installation CD. Is this correct or am I missing repos? downside of running testing? If I'm missing them could someone please post what repos I should have...
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Jan 13, 2010
When executing different programs varying from the Ubuntu Software Manager to pstotxt and lots of other programs I get tons of errors that have to do with Python2.6, whatever it is. I think it got corrupted since my netbook turned of while installing some (Dutch) language packs.The smaller problem, is that the language packs failed to install properly, and I can see some Dutch sentences between the English ones sometimes...The major prolem, is that somehow a lot of programs won't work anymore, mainly terminal programs. pstotxt is one of any examples. Installing software doesn't always work because of these errors.
This is the output when I want to use pstotxt to convert a .pdf to .txt file:
Code:
Traceback (most recent call last):
File "/usr/lib/command-not-found", line 8, in <module>
import CommandNotFound
File "/usr/lib/python2.6/dist-packages/CommandNotFound/__init__.py", line 1, in <module>
from CommandNotFound import CommandNotFound
code....
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Jan 17, 2010
I try to do anything in wine, including winecfg, I get a lot of errors, and the program runs really slowly. Here are the errors
Code:
fixme:heap:HeapSetInformation (nil) 1 (nil) 0
fixme:win:RegisterDeviceNotificationA (hwnd=0x147f30, filter=0x84e9e4,flags=0x00000001),
returns a fake device notification handle!
fixme:advapi:RegisterTraceGuidsW (0x100778a, 0x100a060, {485e7de8-0a80-11d8-ad15-505054503030}, 1, 0x33fe28, code....
I get this error for every program, so I do not think it is an error with the program. If fixing this will change anything like making it faster any help would be appreciated. Oh, I also can only run a few programs. I can't run things like WMP or itunes, and I think this may be the cause.
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Feb 15, 2010
i have a question about the best choice for a filesystem: We have in our company a productive webserver running debian with nginx webserver to serve images. The number is about 15 million, they are around 2kb or 3kb of size each and they are stored under some subdir in /home with a hashed subdirectory tree which is 2 leves deep. the images are copied with nfs from some other machine time to time. We get high load when this copying is running. Currently we are using ext3, and considering moving to jfs, cause its relativly low load impact, but i am still courios about the performance. I think serving lots of images is often practiced thing, so i would be interested what others are using as filesystem in this scenario, or if someone could make a recommendation for our case.
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Feb 23, 2010
I got the following errors after trying to install Drupal6 from the repositories.
[Code]...
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Jan 24, 2011
The only window that's open is the terminal running this command, no pidgin, skype, samba, torrent or anything I can think of is using the network yet there is ***** load of output from tcpdump. I was hoping to use this to check where certain applications connect to and what messages they send but when I'm doing nothing there is already more output than I can go through. Running tcpdump for less than 10 seconds gives me the following output:
Code:
16:13:22.015683 IP ns.hihkptt.net.cn.domain > desk.local.56598: 46887 1/2/2 (166)
16:13:22.016251 IP ns.hihkptt.net.cn.domain > desk.local.60099: 21168 1/2/2 (166)
16:13:22.016743 IP ns.hihkptt.net.cn.domain > desk.local.42325: 50346 1/2/2 (166)
16:13:22.034733 IP ns.hihkptt.net.cn.domain > desk.local.41441: 63658 1/2/0 (134)
16:13:22.035215 IP ns.hihkptt.net.cn.domain > desk.local.42865: 37537 1/2/0 (134)
16:13:22.036124 IP ns.hihkptt.net.cn.domain > desk.local.35006: 7520 1/2/0 (134)
16:13:22.036569 IP ns.hihkptt.net.cn.domain > desk.local.38480: 51322 1/2/0 (134)
16:13:22.066006 ARP, Reply 192.168.0.1 is-at 00:b0:0c:02:60:9c (oui Unknown), length 46 .....
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Jan 26, 2011
I use nautilus and its awful. The only good thing are the tabs and the bookmarks on the cons:
* it freezes now and then when moving lots of files.
* Slow to navigate while large amounts of data are moving or displaying.
* Slow presenting of files where there are a lot of them (it should only render whatever is in screen and maybe render a properly sized navigation bar. Anything else shouldnt freeze the client. Render at its once pace if at all. I dont move the scroll bar it shouldnt freeze
* It doesnt queue (meaning it moves everything at the same time instead of queueing stuff, what makes moving stuff take longer) .
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Aug 14, 2015
I am trying to set a static IP for my wireless adapter (wlan0). I've been getting the error
Code: Select all[....] Reconfiguring network interfaces.... Error for wireless request "Set Encode
" (8B2A) :
SET failed on device wlan0 ; Invalid argument.
RTNETLINK answers: File exists
Failed to bring up wlan0.
Done.
After using the command
Code: Select allsudo /etc/init.d/networking restart
Here is what etc/network/interfaces looks like
Code: Select allauto lo
Iface lo inet loopback
auto eth0
Allow-hotplug eth0
Iface eth0 inet manual
Auto wlan0
Iface wlan0 inet static
Wireless-essid xxxx
Wireless-key xxxx
Address 192.168.3.116
Netmask 255.255.255.255
Gateway 192.168.3.0
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Feb 9, 2010
I have a DOS/Linux dual-boot system. After recently replacing the original motherboard (an Elitegroup P6VEM3, of all things!) with a salvaged Dell D300 motherboard, I'm preparing to replace the Red Hat 8 currently installed with a Ubuntu live CD that I've had for some time (but that wouldn't work at all on the old motherboard, for some reason) I have a question about the "partitioner" stage of the installer: I don't know what to do with my 5 DOS volumes. My hard drive is partitioned as follows (from the partitioner's report when I select manual mode; annotations in parentheses):
/dev/sda
/dev/sda1 fat16 57MB 33MB (C:, "DOS")
/dev/sda5 fat16 106MB 33MB (D:, "STUFF")
/dev/sda6 fat16 633MB 121MB (E:, "APPLICATION")
[code]....
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Aug 10, 2010
I downloaded wubi to install it on my old desktop which runs windows xp pro. The installation went through and it asked for some updates. After the updates, it rebooted but got stuck to the msg in the topic sentence. I don't have no live cd's for ubuntu and tried to read some earlier threads but they don't make any sense to me as I have no previous knowledge of linux. how to deal with this in a simpler language?
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Aug 16, 2010
I tried to install a a custom splash screen using this guide [URL] and got as far changing the settings with Startup Manager. I found out that I didn't have an 'Appearance' tab so I reverted all the changes I've done in the 'Boot Options' tab. I then closed Startup Manager and rebooted back into linux. Now instead of seeing the purple Unbuntu screen, I see a black screen with a lot of pixelated garbage. Why I don't have the necessary tabs in Startup Manager to install a theme? I'm using a Macbook Pro 5,5.
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Mar 3, 2011
When I try to install things I am getting lots of errors.
[code]...
What can I do to fix my problems? I also included a screen shot of the repositories in Software Sources. I been messing with BeachBit as Root and been toying with Ubuntu Tweak and so I think I messed something up on accident. Here is my list that I have too.
[code]...
Some index files failed to download, they have been ignored, or old ones used instead.
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Feb 12, 2010
I have been running happily on Knoppmyth R5F27 (on Debian GNU 4.0/Etch) for a good long time. Everything has been operating well. My kids get to record their Mythbusters. Life is good. Tonight, though, I tried to make things better. And that was the mistake.
I read that we could use our PS3 to watch videos on Hulu. But, I needed a kind of proxy server or something to mask that I was using the PS3 browser. So, I thought I would install squid on the myth box.
I first tried apt-get install squid But, that didn't quite work. So, at a friend's suggestion, I ran: apt-get update Which had problems, too. Still, being a noob, I reran the apt-get install squid and a bunch of stuff came down. It has problems, too.
So, I turned back to apt-get update and realized there was a problem in sources.list. I updated it to have a more current repository and received the update. Then I realized that the apt-get for squid was pulling down resources for lenny. I struggled trying to kill the install for Squid. Failed. And then rebooted just to see if I have problems.
And I do. Mythbackend won't start. The command to do so produces a segmentation fault. Ditto for mythfrontend and mythtv-setup. I don't know what to do. Can someone help me roll this back to a stable setup of Etch? If you want to see my (very messy) attempt to install squid and update the system you can look at[URL]..
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Nov 12, 2010
I did a fresh install of F14, and I am using adobe 64bit flash plugin,on "some" websites such as yahoo movie trailers, flash videos are played with an audio which comes with lots of annoying noise. the video itself is played smoothly without any problem but the sound is terrible to my astonishment, this problem shows up only on a number of web sites, and on others such as ..... the sound is clear.
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Jan 25, 2010
Take a peek at this:
Code:
Jan 23 20:15:01 localhost CRON[22629]: pam_unix(cron:session): session opened for user root by (uid=0)
Jan 23 20:15:01 localhost CRON[22629]: pam_unix(cron:session): session closed for user root
[code]....
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Apr 11, 2011
Tired of installing ndiswrapper and everything to set up a wireless card? Try this!(might only work with Broadcom) Go to System > Administration > Additional Drivers. If you know the name of the brand of it (mine was Broadcom) it should come up. Install the driver. Tada! You've installed the driver simply!
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Feb 27, 2010
modinfo -l shows a ton of different video drivers, from matrox to ATI. Are all these drivers currently loaded my kernel, and is it ok to disable all but nvidiafb (since my system if 100% nvidia)?
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Oct 5, 2010
last week I encountered the following problem: The update manager suggests a distribution upgrade (strange enough since I already have 10.4 and 10.10 is not released yet). The even worse part is that 24 packages shall be removed from my system, including acpi, cryptsetup, network-manager, nvidia-current, plymouth-x11, samba and wine. About 5 weeks ago I experimented (without success) with disabling plymouth because I wanted textmode during booting. I found some warnings that one should not completly remove plymouth because lots of dependencies including cryptsetup (which is vital to my system). So I did not remove plymouth (a look in Synaptic confirms this), but I may have changed some settings concerning plymouth.I am not sure what this upgrade is about.
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May 16, 2011
I just set up denyhosts and it worked properly the first time adding lots of ips to the hosts.deny.I then set it to run every 12 hours noon and midnight.I wanted to see if ran properly and I got all this.Does it look like its working?
Code:
May 15 12:00:01 hyrule CRON[14286]: (root) CMD (python /usr/share/denyhosts/denyhosts_ctl.py -c /usr/share/denyhosts/denyhosts.cfg )
[code]...
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Sep 1, 2010
At this moment I suffer from crashing Firefox and Chromium (lots of black screens), on both Windows 7 and SuSE 11.3.So I think smth is wrong with Firefox.AMD 64-bit 5000+HP Pavillon 7760
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Mar 12, 2010
My family have three Linux operated ACER ONE netbooks, all of them need the new Firefox 3.6 download as the old format wont be supported supposedly by ..... etc. I have downloaded the SOFTWARE but cant get it to run, the Firefox explanation mentions lots of files etc that are cant access, nor can I excecute any files once they have been extracted. The same happens with any software but Iv ignored it till now, not having a "modern" browser will make things difficult. I need it explaining simply. On another subject can anyone use facebook chat on Linux
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Nov 22, 2010
I was browsing my folder with lots of images, after finished i close nautilus and i notice that my computer became slow, so i'll check it with system monitor and had found that nautilus are using almost 100mb of ram (opening 4 tabs). I'm not sure if this was normal or not because i try to reopen the same folder with pcmanfm and it only consumes less than 20mb of ram (opening 4 tabs).
here's the screenshot from system monitor .
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Dec 1, 2010
What should I do to clear WINE state in my system if it's already flooded with installed Win apps and lots of registry configs? Like WINE has just been installed and nothing more. No Windows apps, no configurations were made, clear registry, etc... Is it enough just to delete "~/.wine"?
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Jun 1, 2010
I did a clean install of fedora 13 on my sys, however when i run
Code:
rpm -qa |grep fc12
lots of and lots of fc12 packages pop up. below is the list. if there is fc13 version of these packages, and if there is (which I suspect for at least some of them there should be) why my sys doesn't update to those packages?
here is the list of fc12 packages:
Code:
~$ rpm -qa |grep fc12
ctan-cm-lgc-fonts-common-0.5-17.fc12.noarch
plexus-compiler-1.5.2-4.3.fc12.noarch
texlive-texmf-errata-fonts-2007-7.fc12.noarch
[code]....
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