Jamess's questions

I am getting in my Ubuntu 12.04 server the following errors in syslog/dmesg. Recently the server became multiple times slow in network and causing at time hung application and many errors with postgresql-9.1 server running on it.

Log snippet from dmesg

[    5.923148] tg3 0000:03:00.0: irq 44 for MSI/MSI-X
[    5.923155] tg3 0000:03:00.0: irq 45 for MSI/MSI-X
[    5.923160] tg3 0000:03:00.0: irq 46 for MSI/MSI-X
[    5.923165] tg3 0000:03:00.0: irq 47 for MSI/MSI-X
[    5.923169] tg3 0000:03:00.0: irq 48 for MSI/MSI-X
[    6.045713] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    7.716179] tg3 0000:03:00.0 eth0: Link is up at 100 Mbps, full duplex
[    7.716184] tg3 0000:03:00.0 eth0: Flow control is off for TX and off for RX
[    7.716185] tg3 0000:03:00.0 eth0: EEE is disabled
[    7.716268] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

Log snippet (more occurrences) from syslog.

Jul 31 18:25:08 sugam kernel: [    1.848502] tg3 0000:03:00.0 eth0: Tigon3 [partno(N/A) rev 5720000] (PCI Express) MAC address 40:a8:f0:c7:32:a8
Jul 31 18:25:08 sugam kernel: [    1.848506] tg3 0000:03:00.0 eth0: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
Jul 31 18:25:08 sugam kernel: [    1.848508] tg3 0000:03:00.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
Jul 31 18:25:08 sugam kernel: [    1.848510] tg3 0000:03:00.0 eth0: dma_rwctrl[00000001] dma_mask[64-bit]
Jul 31 18:25:08 sugam kernel: [    3.684380] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jul 31 18:25:08 sugam kernel: [    5.524600] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jul 31 18:25:10 sugam kernel: [    7.174179] tg3 0000:03:00.0 eth0: Link is up at 100 Mbps, full duplex
Jul 31 18:25:10 sugam kernel: [    7.174183] tg3 0000:03:00.0 eth0: Flow control is off for TX and off for RX
Jul 31 18:25:10 sugam kernel: [    7.174184] tg3 0000:03:00.0 eth0: EEE is disabled
Jul 31 18:25:10 sugam kernel: [    7.174269] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Jul 31 18:58:24 sugam kernel: [    1.902218] tg3 0000:03:00.0 eth0: Tigon3 [partno(N/A) rev 5720000] (PCI Express) MAC address 40:a8:f0:c7:32:a8
Jul 31 18:58:24 sugam kernel: [    1.902222] tg3 0000:03:00.0 eth0: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
Jul 31 18:58:24 sugam kernel: [    1.902224] tg3 0000:03:00.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
Jul 31 18:58:24 sugam kernel: [    1.902226] tg3 0000:03:00.0 eth0: dma_rwctrl[00000001] dma_mask[64-bit]
Jul 31 18:58:24 sugam kernel: [    3.730192] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jul 31 18:58:24 sugam kernel: [    5.644533] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jul 31 18:58:26 sugam kernel: [    7.234780] tg3 0000:03:00.0 eth0: Link is up at 100 Mbps, full duplex
Jul 31 18:58:26 sugam kernel: [    7.234784] tg3 0000:03:00.0 eth0: Flow control is off for TX and off for RX
Jul 31 18:58:26 sugam kernel: [    7.234785] tg3 0000:03:00.0 eth0: EEE is disabled
Jul 31 18:58:26 sugam kernel: [    7.234865] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Jul 31 19:07:18 sugam kernel: [    1.833042] tg3 0000:03:00.0 eth0: Tigon3 [partno(N/A) rev 5720000] (PCI Express) MAC address 40:a8:f0:c7:32:a8
Jul 31 19:07:18 sugam kernel: [    1.833046] tg3 0000:03:00.0 eth0: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
Jul 31 19:07:18 sugam kernel: [    1.833048] tg3 0000:03:00.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
Jul 31 19:07:18 sugam kernel: [    1.833050] tg3 0000:03:00.0 eth0: dma_rwctrl[00000001] dma_mask[64-bit]
Jul 31 19:07:18 sugam kernel: [    3.457417] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jul 31 19:07:19 sugam kernel: [    6.045713] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jul 31 19:07:20 sugam kernel: [    7.716179] tg3 0000:03:00.0 eth0: Link is up at 100 Mbps, full duplex
Jul 31 19:07:20 sugam kernel: [    7.716184] tg3 0000:03:00.0 eth0: Flow control is off for TX and off for RX
Jul 31 19:07:20 sugam kernel: [    7.716185] tg3 0000:03:00.0 eth0: EEE is disabled
Jul 31 19:07:20 sugam kernel: [    7.716268] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

Any help is appreciated as I need to figure out what is going on with this server.

This question is related to already existing question in askubuntu.com.

I installed Sun Java using sudo apt-get install oracle-java9-installer

The procedure downloaded Java tar.gz file like the logs below.

<trimmed>

Downloading Oracle Java 9... 
--2015-06-11 02:48:37--  http://www.java.net/download/jdk9/archive/b66/binaries/jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz 
Resolving www.java.net (www.java.net)... 209.189.227.38 
Connecting to www.java.net (www.java.net)|209.189.227.38|:80... connected. 
HTTP request sent, awaiting response... 302 Found 
Location: https://www.java.net/download/jdk9/archive/b66/binaries/jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz [following] 
--2015-06-11 02:48:39--  https://www.java.net/download/jdk9/archive/b66/binaries/jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz 

<trimmed>

--2015-06-11 02:48:41--  http://download.java.net/jdk9/archive/b66/binaries/jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz?q=download/jdk9/archive/b66/binaries/jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz 
Resolving download.java.net (download.java.net)... 137.254.120.26 
Connecting to download.java.net (download.java.net)|137.254.120.26|:80... connected. 
HTTP request sent, awaiting response... 200 OK 
Length: 117953013 (112M) [application/gzip] 
Saving to: ‘jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz’ 

<trimmed>

2015-06-11 03:00:39 (161 KB/s) - ‘jdk-9-ea-bin-b66-linux-x64-27_may_2015.tar.gz’ saved [117953013/117953013] 

Download done. 

Install proceeded as expected in my computer and finished successfully. However I would like to know download location of this xx.tar.gz file in current computer so that I can make a copy of it along with downloaded *deb files in apt-cache. This is for replicating java installation on other similar computers without accessing the download site over internet each time to get 112 M file. I looked at $HOME/Downloads, /tmp and /var/cache/apt/archives, but could not locate this file.

Requirement I have a computer which runs Ubuntu 10.4.3 (64 bit server) installed over LVM and /boot filesystem and I wanted it to dual boot to Ubuntu 12.04 (desktop, 32 bit).

Completed Successfully:

1. Creating a free partition to installed desktop version- Followed procedures/discussions in this question and freed up 200 GB out of 200GB hard disk. This was successful.

2. Installing Ubuntu 12.04.1 desktop version (32 bit) - Successfully installed OS iun to newly created free space as /dev/sda6 (extended)

The problem:

1. During install, Desktop version failed to see Ubuntu Server's presence and asked me if I want to use who system. I used manual install to over come install correctly.

2. Grub did not detect my Ubuntu Server install and set it up directly to boot to Ubuntu 12.04.

What I tried to fix this:

1. I used Grub2 recovery procedures described in this question using Ubuntu 12.04.2 64 bit server CD and could get only server install back. Grub did not detect my desktop version in a different partition.

2. I used the same procedures with Desktop CD and then Grub only detected and installed my desktop version, did not detect my server version.

Edit 1

3. Downloaded rescatux CD and tried to 'Update GRUB configuration' and 'Restore Grub'. Update Grub configuration failed when I chose the LVM and succeeded when I chose sda6 (non-lvm ubuntu 12.04) and restore grub forced me to choose one partition and depending upon the partition I choose, I could boot only that version linux. Question How to get this to boot as dual boot option ?

I was evaluating RabbitVCS as replacement of RapidSVN to connect to my SVN repository on Ubuntu server.

This what I did on my 12.04

1. Opened the Ubuntu software centre
2. Searched for RabbitVCS-Core and RabbitVCS-nautilus. They were listed.
3. Installed both of them and they are successfull installed.

Then,

1. I used the dash home to see if I can find these programs.

2. Opened Home folder and right clicked on certain folders which was checked out using Rapid SVN. I could not find any options to use RabbitVCS in nautilus from here.

3. I restarted my machine and repeated both process again.

So How can I use RabbitVCS?

Am I seeing everything as it is expected or some thing weird?

Is there a good application where I can make collages using my photo collection on Ubuntu 12.04?

I Saw this link ,but couldn't find any of them in my Ubuntu software centre or the instructions to add the PPA to get them.

I would like to fine tune user privileges after reviewing default available privileges for a standard user.

Is there a way to fine tune it? I was using 10.04 and 10.10 until now and I could not find advanced settings in Users screen in 12.04.

I saw an older question here and want to confirm if this is still the right way for 12.04 or is there a better way?

I have installed Ask Ubuntu Lens on my 12.04 desktop some time back and I could see it in my installed applications from Ubuntu Software Center. But I cannot find it on the dash. How I can launch it ? I installed Alacarte hoping that I can see it there, but could not find it there either.

Note: I reviewed the question on installing lens here, but could not find answer to my specific question.

This question is prompted by another question here. Now I use teamviewer to connect to a Ubuntu desktop in a customer's LAN from my LAN. I get a password and access ID from him and connect, then use it to login to other ubuntu servers/machines using ssh or whatever commands/packages I need.

I am looking for an open source alternatives where I can do NAT Pass through on both ends (my router and customers router). If this can be accomplished by Free-NX, Remmina or VNC, can some one point to documentation on how to set this up?

Note: Port-forwarding from router at customer's router is not an option, so such solutions cannot be used.

I installed Ubuntu 12.04 on a fresh partition and my old Ubuntu 10.10 has my home directory encrypted. I was wondering if I can mount this home directory as /home/myoldhome in to new install whenever I use it in RW mode.

I already referred Trying to mount old encrypted home and was able to use ecryptfs-recover-private utility to mount my home directory to /tmp/ecryptfs.xxxx. But this would not help me to access the data in R/w mode and to mount in subsequent boots to 12.04 automatically. Moving the data to new home directory is not an option since I do not have enough hard disk space in the new partition.

By following, the answer 1 from rausch, I could mount the filesystem, but all the files/directories are shown as ECRYPTFS_FNEK_ENCRYPTED.xxxx.xxxx.

So is it possible to mount the encrypted home directory in read/write mode and make an entry to /etc/fstab to automatically mount it every time I boot in to 12.04 ?

I am trying to mount the installation CD rom drive using a USB CD ROM drive on Ubuntu 10.4.3 server to extract additional packages (since I do not have internet active on the server). I plugged the CD rom drive and inserted the CD and I could not find any auto mounting happening. I could not figure out what would be the device name to manually mount. Looks like it is not /dev/sr0. Any guidance on mounting a CD on Ubuntu server is appreciated.

EDIT Based on the answer from Christopher, here is more information,

/0/1                 scsi6       storage     
/0/1/0.0.0           /dev/cdrom  disk        DVD RW AD-7560S
/0/1/0.0.0/0         /dev/cdrom  disk        

So I guess the device name would be /dev/cdrom and I should be able to mount it with the following command

sudo mount /dev/cdrom /mnt

I get the following error.

mount: /dev/sr0: unknown device

However I can automount the CD in my Ubuntu 10.10 Desktop edition.

So please confirm I am recognising the correct /dev/<dev name>

With 11.10, I read somewhere that a site where we can upload the system testing reports. What is the URL of the site where I can refer the results uploaded by other users?

I read that I can upload system testing reports to ubuntu site and was excited with it. But my last three efforts looks like gives me a hung 'system testing' process or it appears so for about an hour each. How I can find out what is happening and if it indeed hung?

https://launchpad.net/+login says I am already logged in, but I do not see any progress (or even unable to close the window as well) I am attaching the Screen shot as well:

How to upgrade LibreOffice from 3.3.2 to 3.4.2 Final (2011-08-01) on 10.10

I added the PPA

sudo add-apt-repository ppa:libreoffice/ppa  

and tried to use update manager in system -> administration to upgrade it and could not find any package to upgrade.

I was trying to implement some changes to syslogd on Ubuntu 10.04.02 LTS (Server edition). I found /etc/syslog.conf is not present on system, instead I have /etc/rsyslogd.d/*.conf. syslogd can be installed by installing inetutils-syslogd, but I am unable to decide the pros and cons of both systems. Also while installing inetutils-syslogd, I need to remove rsyslog and ubuntu-minimal. Would some one explain merits and de-merits of rsyslogd over syslogd.

Is there a way to roll back a LTS Maintenance Upgrade to the previous version, say from 10.04.02 LTS from 10.04.03 LTS ?

I am not facing a problem now, but need to figure out means to back out the packages before I rollover to 10.04.03 LTS on my server, in case of any need.

I am trying to open a 33 page xxx.doc file which has data in in a table (3 coloumns X 200+ rows) using Libre Office 3.3.2. The files take ~4-6 minutes to open (all other applications and smaller documents opens real fast and I have a new and fast laptop). During this time entire LibreOffice will appears as hung. I checked swap usage using free and I can see it used some swap, but very little.

Once I open the document, I do see the data and table alignment completely lost. There are some areas table has contents, but by and large data is not within the cells as expected.

How I can speed up the opening process and how I can get the data almost like when I open with MS-Office?

We are doing printing from a firefox pop-up window to a 9-pin dot matrix printer, to make printing inexpensive for our application (Epson Lx 300+, Lx 300+ II family). As of now, I used IBM Pro printer II and PPD for Epson dot matrix printers as driver since my printer is not supported out of the box. In both cases, I am unable to do a fast printing using the default fonts in the printer. The printer gets text in bit-map/graphics so the print is time consuming.

So I would like to know how I can have the default printing font changed to use the built-in fonts in printer which will print super fast? Where I can do this change - Firefox or CUPS so that the data sent will be in a font either matching with printer default or just raw data so that printer default font used? I already played around with printer setup and it does not look like I have an option there and the font I chose there get overridden by font sent by application.

I believe cups has some setup on choosing this. A command line printout (from terminal doing a lp testfile is also using some font other than default built-in Draft/Roman/San Serif of the printer. Any pointer to right direction is appreciated. A similar question on Stackoverflow: How can I send raw data to a printer in Mozilla Firefox? (Raw Print) did not help me.

Update: With setting up the printer as a raw printer, I could get very fast printing from a terminal (lp mytextfile). With this setting, the OS (Ubuntu 10.10) sent raw text data and printer used its font (built-in one in ROM) to print it. But a print from firefox did not print what I expected, since it needs a post script printer, not a raw printer. What I am looking is print speed similar to raw print.

When I boot system in to recovery mode from GRUB menu, I can get in to all powerful root without entering any password, thus insecure.

How I can secure this and ensure that a password is asked every time I attempt to access root in recovery mode?

Is there any option to install a package to my home directory (or /foo) instead of system wide ? I am looking for options using apt-get or dpkg. Something similar to --prefix in a source compile.

What I am looking for co-existing of different versions of openJDK for testing purposes.

I use Ubuntu 10.10 server as test server for a Java program.

Linux sugam 2.6.35-22-server #35-Ubuntu SMP Sat Oct 16 22:02:33 UTC 2010 x86_64 

GNU/Linux Ubuntu 10.10

Since it is a test server and we like to see our application to work in both, 64-bit and 32-bit Java, I like to have OpenJDK (32-bit and 64-bit) and Java SE (32-bit and 64-bit), (total 4 instances) installed on the server.

I could install 64-bit easily and have the following Java versions:

$/app/java64bit/jre1.6.0_23/bin/java -version
java version "1.6.0_23"
Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)

$ /usr/lib/jvm/java-6-openjdk/jre/bin/java -version
java version "1.6.0_20"
OpenJDK Runtime Environment (IcedTea6 1.9.2) (6b20-1.9.2-0ubuntu2)
OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode)

But I am unable to install 32-bit Java on this 64-bit machine. I have correct binaries (cksum and md5sum validated).

On unpacking I get the following error for 32-bit version:

$ ./jre-6u23-linux-i586.bin 
Unpacking...
./jre-6u23-linux-i586.bin: 56: cannot create install.sfx.12308: Permission denied
Checksumming...
/usr/bin/sum: install.sfx.12308: No such file or directory
[: 83: -ne: unexpected operator
[: 83: -ne: unexpected operator
chmod: cannot access `install.sfx.12308': No such file or directory
Extracting...
./jre-6u23-linux-i586.bin: 86: ./install.sfx.12308: not found
Failed to extract the files.  Please refer to the Troubleshooting section of
the Installation Instructions on the download page for more information.

Is there a way to install 32-bit Java on a 64-bit server? Any help appreciated.