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• Cannot access files after trying to upgrade Ubuntu

  - by Ola

  I tried to upgrade Ubuntu from 11.10 to 12.04. I left it for 24 hours but the upgrade did not complete. Hence I cancelled the upgrade. I thought I will copy all the files that I have to a DVD/CD and try try downloading a copy of Ubuntu. But now, I cannot open any file or copy them. I cannot even shutdown my laptop. I have many important files on my laptop. Can someone help me retrieve my files from my laptop? Regards Ola

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• Can't launch Oneiric x64 instance on Eucalyptus

  - by Bruno Reis

  EDIT: after many hours, I've found out that the problem has nothing to do with Eucalyptus. It looks like the image is buggy. Very, very buggy. More details in the end. I didn't manage to fix it, and I will file a bug. EDIT 2: I managed to fix it, it apparently works. I have a 4-machine cluster running Ubuntu Server Natty (11.04) x64. I've installed "Ubuntu Enterprise Cloud" from the installtion CD (then updated it) on each of these machines. The cloud seems to work fine, I have lots of virtual machines running Natty servers on them. Now I'd like to run Oneiric in a virtual machine, but somehow I can't. I downloaded Oneiric's (x64) image from http://cloud-images.ubuntu.com/oneiric/current/, published it (uec-publish-tarball oneiric-server-cloudimg-amd64.tar.gz oneiric-server-cloudimg-amd64) exactly as I did with Natty, then tried to launch an instance (euca-run-instances -n 1 -k my-key -t m1.small -z my-cloud emi-XXXXXXXX) using Oneiric's image, but the instance is not able to boot. With euca-get-console-output I get the following: [ 0.461269] VFS: Cannot open root device "sda1" or unknown-block(0,0) [ 0.462388] Please append a correct "root=" boot option; here are the available partitions: [ 0.463855] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 0.465331] Pid: 1, comm: swapper Not tainted 3.0.0-13-generic #22-Ubuntu [ 0.466526] Call Trace: [ 0.466989] [<ffffffff815d3ee5>] panic+0x91/0x194 [ 0.467860] [<ffffffff81ad1031>] mount_block_root+0xdc/0x18e [ 0.468891] [<ffffffff81ad126a>] mount_root+0x54/0x59 [ 0.469829] [<ffffffff81ad13dc>] prepare_namespace+0x16d/0x1a7 [ 0.470883] [<ffffffff81ad0d76>] kernel_init+0x140/0x145 [ 0.471837] [<ffffffff815f38e4>] kernel_thread_helper+0x4/0x10 [ 0.472889] [<ffffffff81ad0c36>] ? start_kernel+0x3df/0x3df [ 0.473884] [<ffffffff815f38e0>] ? gs_change+0x13/0x13 The filesystem is labeled "cloudimg-rootfs", inside the image both /etc/fstab and /boot/grub/grub.cfg always refer to the image by the label, everything seems to be correct, yet the kernel says it can't find the root file system. I've spent many hours googling, but nothing came out. I've asked on #ubuntu-server, but nobody knew what to do. I've asked on #eucalyptus but got no answer at all. Any ideas on why this is happening and how to solve it? Thanks EDIT: after many hours, I've found out that the problem has nothing to do with Eucalyptus. It looks like the image is buggy. Very, very buggy. The first problem is that the Kernel in the image is a -generic kernel, while I suppose it should be a -virtual one. I chrooted into the image, removed the -generic packages, replaced it with the -virtual ones. Then I extracted the new kernel (and replaced the original one (-generic) that came with the tarball) because I need it when I publish and launch an image with Eucalyptus. The problem described above was solved. But then, the console started showing this: mount: mount point ext4 does not exist If you check the /etc/fstab file in the image, it says: LABEL=cloudimg-rootfs ext4 defaults 0 1 Damnt, where's my mount point? Note that it is missing /proc as well. Well, when you think it is over, you will notice that your instance will have no network connectivity. Let's check /etc/network/interface: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback Oh my! It is missing eth0... here I stopped. I can't take no more. I give up. Looks like Canonical has just forgotten to properly set up this image. At first, I though: "have I downloaded a server image by mistake?", but no, I double checked. It is really the cloud image, it has even "cloud-init" installed (which is not, by default, on server images). They just forgot to prepare it. I will file a bug (and reference it here once this is done), and hope they fix it soon! EDIT 2: it looks like the network configuration was the last thing missing. I decided to test it with the fixes above, and it booted properly! However, I haven't got the slightest idea if the image is now good to go...

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• Linux: How do I remove bootchart from the boot process?

  - by java.is.for.desktop

  Hello, everyone! I have OpenSUSE 11.2. I removed bootchart and forgot to run mkinitrd. Now, right at the start of the boot process, I get boot/93-bootchart.sh: line 17: 462 Terminated stopinitrd 5 I Can't find any 93-bootchart.sh anywhere. Failsafe boot mode doesn't help. Earlier I got an error message about non existing /sbin/bootchartd, but I just copied /bin/cat to /sbin/bootchartd using a GParted boot disk. I tried to use chroot with an OpenSUSE boot disk, but mkinitrd can't find the root device, which is there actually (/dev/sda5). How can I make my system boot again? EDIT Ok, now I managed to re-install the bootchart rpm, using OpenSUSE boot disk and chmod. The system starts again. But that annoying bootchart is still there. I will not try again to remove it. First I will try to figure out, how to disable it during the boot process. Hopefully with your help ;)

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• Auto-rebuild RAID6 with MDADM

  - by user65632

  Hello everybody, i'm new in this forum, and because I see that a lot of people get helped here, i'll ask my question here! I have a openSUSE 11.3 Linux computer with 5 disks of 1TB (WD enterprise disks) in it. with mdadm I configured an RAID6 device. Now, after a lot of thorough testing, i've noticed that when the computer goes down unsuspectedly it could happen (1 time out of 10) that while booting, the md0 device isn't recognised, and then the machine goes in "recovery mode", which means that i have to 'CTRL + C' it so it can boot to openSUSE. Once in openSUSE i have to readd the drive manually with 'mdadm /dev/md0 --add /dev/sdX'. After this everything works back fine (after resynching). So my question is: Is there a way to auto-rebuild the RAID6 device when there are problems? and how can I stop this "recovery mode" from happening. Because the computer will be in a place I can't go to, to connect a keyboard, 'CTRL + C' it just to get in openSUSE. If you could help me, I would be a very very very! happy man! :-) thanks in advance! Mikhail

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• Linux screenshots, how to take them like a mac

  - by alpha1

  I run opensuse 11.2 KDE 4.3.5. I do not have a mac, but I've used one and really like the one feature of the screenshots. Specifically, Command+Shift+3 which saves the screenshot to the desktop without having to open a program or anything like that. Is there any way to do this in KDE, Ksnapshot is nice, but I'd like not to have to click the button every time. Thanks PS. I've tried the command line Import and it always gives me some X server not confectioned or something, So thats not an option.

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• adress-chunk: separate data stored in one collumn - into three (street, postal-code, town)

  - by zero

  hello dear community. Hello dear friends form all over the planet first of all - this is a great great forum. I like this place to share the ideas. It is so great to see such a supportive place - featuring the knowledge exchange! today i have the following thing to discuss: i want to separate the following data that are stored in one column of a calc-spreadsheet: See the following data: You see that there are the following categories:_ steet, postal-code, town All the data are stored in only one Colum; Well to be honest: i want to separate them into three colums steet, postal-code, town see the data: what can i do? note - you see that there are commas inbetween the enties: and besides this we see that we have a postal-code with four digits: that is a good thing. Perhaps we can use this as a marker that helps us to separate the data?! Perhaps See a data-sample! Here you can see some exceptions: eg. the town that has two words combinde with a "-" ... or somethims without any signs and characters... see the following... as an example: Max-Bader-Platz 1, 5620 Schwarzach im Pongau Pestalozzistraße 4, 9990 Nussdorf-Debant Schulstraße 4, 5162 Obertrum am See But i guess that this means no problem... What do you think about this? I am very very interested to get your opinion! i look forward to hear from you! regards see a snipped of the dataset - that is stored in one column -[b]Goal: [/b]i want to separate the datas into three collumns... : Schulweg 6, 9871 Seeboden Khevenhüllerstraße 45, 4861 Schörfling Franz Xaver Rennstr.18, 6460 Imst Schulstraße 4, 5162 Obertrum am See Schulweg 6, 7432 Oberschützen Pestalozzistraße 4, 9990 Nussdorf-Debant Niederndorf bei Kufstein 53c, 6342 Niederndorf bei Kufstein Hauptschulstraße 18, 2183 Neusiedl an der Zaya Seeweg 14, 5202 Neumarkt am Wallersee Europaplatz 1, 8820 Neumarkt in Steiermark Schulstraße 7, 4212 Neumarkt im Mühlkreis Schulstraße 20, 4720 Neumarkt im Hausruckkreis Bahnhofstr. 10, 4872 Neukirchen an der Vöckla Schulstraße 5b, 4780 Schärding Reitbergstraße 2, 4311 Schwertberg Europaplatz 1, 2320 Schwechat Am Schulberg 5, 3931 Schweiggers Waidach 8, 6130 Schwaz Waidach 8, 6130 Schwaz Max-Bader-Platz 1, 5620 Schwarzach im Pongau Markt 29, 2662 Schwarzau im Gebirge Hofsteigstraße 68, 6858 Schwarzach Gmundner Straße 7, 4690 Schwanenstadt Mühlfeldstraße 1, 4690 Schwanenstadt Mainsdorferstraße 18, 8541 Schwanberg Jakob Stemer-Weg 3, 6780 Schruns Obere Umfahrungsstraße 16, 2432 Schwadorf bei Wien Battloggstraße 54, 6780 Schruns Schloss-Straße 19, 5020 Salzburg Schillerplatz 2, 8280 Fürstenfeld Erzherzog-Johann-Str. 400, 8970 Schladming Schulgasse 261, 8811 Scheifling i look forward to hear from you!! regards

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• What DBus signals do I send to players to imitate Gnome's multimedia shortcuts?

  - by culebrón

  I have Xubuntu 11.10, XFCE. I want to send DBus signals to the players so that they worked like in Gnome: you press 'play' key, it plays, 'next' - it forwards, and so on. For that, I need to bind to the multimedia keys a set of commands like this: dbus-send --dest=org.gnome.Rhythmbox ... Now, I searched and can't find it: what signals should I send? I need only 3 events: play, forward and rewind.

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• Why is my connection slow?

  - by Jay R.

  I have a Dell Precision T5400 with a Broadcom 1Gb onboard NIC. For some strange reason, when I access machines on our local network, the best I can get is around 125KB/s download speed. My laptop that has a 10/100Mb NIC onboard usually gets around 300KB/s or better from the same network resource. Both machines are plugged into the same 1Gb switch which connects to our local network wall jack at 100Mb half duplex. There is also a printer plugged into the same switch at 100Mb full. The resource I'm using for the test is a 30MB zip file copied from a jetty webserver that is running as part of a cruisecontrol installation. The cruisecontrol installation is running WindowsXP with full real-time antivirus and Altiris patch management and inventory running. That stuff on its own is eating some of the download speed. I've seen the laptop reach into the multiple MB/s download speed before, but the desktop never seems to get past 125KB/s to 130KB/s. In WindowsXP, before I upgraded the driver in the desktop, it was that slow. In Fedora, it is still slow even though it appears to be using the same driver version as the upgraded Windows driver. The upgraded Windows driver is faster, but still not nearly as fast as the laptop. What gives? Any insight to improve the situation would be appreciated. Could it be that the BroadCom board just isn't that good, or the driver in linux is just not as good as the Windows one?

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• Connect Ubuntu 11.04 to xbox 360

  - by mrK

  I'd like to be able to stream .avi files to my xbox 360 video library. I've gone through a bunch of different servers (ushare, xbmc) both from the aptitude and from source. It seems that I can get the servers working from both localhost and from another computer on the network. However, the xbox cannot detect any of these. Can anybody give me a hand or perhaps post a detailed walkthrough to give me a hand? Thanks!

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• ipv6 auto configuration not working in ubuntu natty

  - by allan ruin

  In win7, my computer can automatically get a IPV6 global address and use ipv6 network, but in ubuntu natty, I can't find out how to let stateless configuration work. My network is a university campus network,so I don't need tunnels. I think if one thingg can silently and successfully complished in windows it shouldn't be impossible in linux. I did can manually edit /etc/network/interfaces and use a static ipv6 address, and I can use ipv6 this way, but I just want to use auto-configuration. I found this post: How to disable autoconfiguration on IPv6 in Linux? and try sudo sysctl -w net.ipv6.conf.all.autoconf=1 sudo sysctl -w net.ipv6.conf.all.accept_ra=1 but no luck

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• wierd questian this time....about win 3.1x

  - by Erez

  Can any one tell me how many processes were loaded in win 3.1x on startup? (system tasks)... Just couldn't find it anywere..i guess it is too long ago for the internet :-) 10x

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• losetup does not decrypt device in Ubuntu 11.4 as before

  - by Kay

  I had an external volume mounted using losetup for about two years. It was created using Ubuntu 9.4 and I used the same Ubuntu installation throughout all dist upgrades. Now as I bought a new laptop I set up a fresh Ubuntu 11.4 installation on it. Problem is: losetup -e twofish /dev/loop0 /dev/sdb2 does not decrypt the volume anymore. The data in /dev/loop0 contains apparently random data. I am sure I entered the correct password. I modprobe'd cryptoloop and twofish. My question is: Has Canonical done some obscure changes to losetup like adding a salt? Does losetup depend on configuration files I did not know about? How can I decrypt the volume on my now laptop?

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• How to automatically execute a shell script when logging into Ubuntu

  - by Mike Rowave

  How do I get a script to execute automatically when I log in? Not when the machine starts up, and not for all users, but only when I (or any specific user with the script) login via the GNOME UI. From reading elsewhere I thought it was .bash_profile in my home directory, but for me it has no effect. When I manually execute it in a terminal window by typing ~/.bash_profile it works, but it won't run automatically when I log in. I'm running Ubuntu 11.04. The file permission on my .bash_profile is -rwx------. No .bash_profile existed in my home directory before I created it today. I seem to remember older versions of Linux having a .profile file for each user, but that doesn't work either. How is it done? Do I need to configure something else to get the .bash_profile to work? Or does the per-user login script need to be in some other file?

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• installing jdk1.7.0 on Ubuntu 11.04 machine

  - by Yogesh

  I am facing a problem while trying to install Java 7 on Ubuntu. The following are the steps that I performed for installing: I installed the setup file from the link given below: wget http://download.oracle.com/otn-pub/java/jdk/7u1-b08/jdk-7u1-linux-x64.tar.gz I have a file: jdk-7u1-linux-x64.tar.gz I Untared it: tar -xvf jdk-7u1-linux-x64.tar.gz sudo mv ./jdk1.7.0_01 /usr/lib/jvm/jdk1.7.0_01 sudo update-alternatives –config java Here it gave me the following output: There is only one alternative in link group java: /usr/lib/jvm/java-6-sun/jre/bin/java Nothing to configure. sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0_01/jre/bin/java 1(I entered 1 here.) sudo update-alternatives --config java java -version. It showed the following output java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) I am not sure if jdk1.7.0 is installed as its showing the version as 1.6.0_26.

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• network manager in opensuse 11.2

  - by user30780

  hello.my network manager in opensuse 11.2 kde environment not working.after clicking.nothing action is being takes place.what should i do.i have to connect to the internet thriugh this.i have airtel macromax usb plug and play device

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• How to connect to the internet in Opensuse 11.2?

  - by user30780

  How do I connect internet in Opensuse 11.2 KDE environment? I have an Airtel Macromax USB plug and play device.

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• join ubuntu server 11.10 to a windows server dns

  - by eyadof

  i have been installed ubuntu server 11.10 and i doesn't specify the domain name during the installation but after i have been edit /ete/resolve.conf with my dns servers which run windows server the dns can't recognise my server name . then i installed likewise-open but that doesn't solve the problem and make some problems with ftp . can someone help me please to join this server to the dns . thanks in advance .

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• After closing the ssh terminal, the thin server is down

  - by Keating Wang

  I have a rails project run on the thin server(1.3.1) on a ubuntu server. I ssh to the server and start thin with command 'thin start -C config/thin.yml', following the thin.yml, port: 3000 log: log/thin.log timeout: 30 chdir: /home/byht/56platform/dev/tracker environment: production servers: 1 daemonize: true After thin starts successfully, I visit the project and it works well. Then, I close the terminal, I can also visit the pages that have been visited, but when I visit the pages that not been visited before closing ssh terminal, a "500" error appears on the page. I didn't find the error messages in the log file. I have tried start thin with nohup and sudo, but they are useless. I sign in the ubuntu server locally, then the problem disappears. But I need sign in the server to stat thin with ssh when I'm home.

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• A simple way to redirect http://mysite.com to http://mysite.com/mylink with Apache?

  - by Bart Silverstrim

  Just starting to try to get the hang of how all the directives and options work under Apache. I'd like to do a redirect with my one site (only running one site on the server) so that when a request comes in to http://mysite.com the server automatically redirects them to a sub-url of http://mysite.com/mylink. I have tried putting redirects into the file located in /etc/apache2/sites-enabled to rewrite this, but then the top level domain URL complains it isn't redirecting properly. I think what I want is a browser redirect, and thought using RewriteEngine On RewriteRule ^/$ /mylink [L,R] would work, but putting it into an .htaccess file didn't work (it redirected but immediately gave a 500 internal server error.) Putting it into the file in /etc/apache2/sites-enabled gives a configuration error when trying to restart Apache. I know it's something simple...but what am I missing?

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• Virtual host redirects to localhost in Ubuntu

  - by Salman

  I have recently configured Virtual Host in my Ubuntu 11.10. But whatever site i type, it always redirects to the localhost page. This is my "our-test-site" file: <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /var/www/zftut/public <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/zftut/public/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> and this is my, "etc/hosts" file: 127.0.0.1 localhost 127.0.0.1 our-test-site.local 127.0.0.1 zftut.local 127.0.1.1 System.B System Now when I try to go for "zftut.local", it redirects me to localhost page, showing me this: It works! This is the default web page for this server. The web server software is running but no content has been added, yet. What am I doing wrong? I refered "this" tutorial for setting up virtual host.

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• OpenSuse 11.2 USB issue

  - by sameerinfodb

  hi, I just installed the openSuse 11.2 , but i insert my pen drive to usb port it is not getting recognised and mounted, I used following the command to prob the OS lsusb = no results lshal |grep usb = not result

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• Solaris 11.1 smb share pam.conf

  - by websta

  I would like to enable an SMB share on Solaris 11.1 x64 My steps: pkg install service/filesystem/smb svcadm enable -r smb/server echo "other password required pam_smb_passwd.so.1 nowarn" >> /etc/pam.conf useradd public smbadm enable-user public zfs set share=name=fs1,path=/rpool/fs1,prot=smb rpool/fs1 zfs set sharesmb=on rpool/fs1 passwd -r files public Step 8 failes: It is not possible to enter a password, output is: solaris passwd -r files public Please try again Please try again Permission denied If I uncomment the new line in pam.conf, it is possible to change the password. Nevertheless, it is not possible to access the share from Windows 7. The Solaris machine is reachable with ping. Access with another SMB enabled user is denied too.

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• Ubuntu not booting, recovery mode not loading

  - by TNC

  I have a dual-boot Ubuntu 11.10 and Windows 7 machine setup and last night I had to force shutdown Ubuntu during updates because it wasn't responding. Since then, Ubuntu will not boot up, only flashing a blank lit screen for a split second every couple of seconds. Booting in recovery mode does not help either, as it doesn't load at all. If anyone can help me diagnose what's wrong and figure out what to do, that would be greatly appreciated!

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• Hadoop is not able to find JAVA_HOME properly

  - by Shekhar

  I am trying to run hadoop my Ubuntu OS. I have set JAVA_HOME variable in ~/.bashrc file to /usr/lib/jvm/jdk1.7.0_01/ but when I run hadoop namenode -format command it fails with following errors : shekhar@ubuntu:/usr$ hadoop namenode -format Warning: $HADOOP_HOME is deprecated. /host/Shekhar/Softwares/hadoop-1.0.0/bin/hadoop: line 321: /usr/jdk1.7.0_01/bin/java: No such file or directory /host/Shekhar/Softwares/hadoop-1.0.0/bin/hadoop: line 387: /usr/jdk1.7.0_01/bin/java: No such file or directory hadoop tries to locate java command at /usr/jdk1.7.0_01/bin/ path. Clearly somehow it missed /lib/jvm folder. I am not able to understand why and how this is happening. my echo $PATH command gives following output : shekhar@ubuntu:/usr$ echo $PATH /usr/lib/jvm/jdk1.7.0_01/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/jvm/jdk1.7.0_01/bin:/host/Shekhar/Softwares/hadoop-1.0.0/bin If I run which java command I get following output : shekhar@ubuntu:/usr$ which java /usr/lib/jvm/jdk1.7.0_01/bin/java and echo $JAVA_HOME returns following output : shekhar@ubuntu:/usr$ echo $JAVA_HOME /usr/lib/jvm/jdk1.7.0_01 I would like to know why hadoop is taking JAVA_HOME path incorrectly. Please help...

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• Problems Installing slapd On Ubuntu Server 11.10

  - by Zach Dziura

  I know that there's a Ubuntu-specific StackExchange website, but I thought that I'd ask here because it's a server-specific question. If I'm wrong in my logic... Well, you people are better at this than I am! O=) On with the show! I'm in the process of installing Oracle Database 11g R2 Standard Edition onto Ubuntu Server 11.10. I found a guide on the Oracle Support Forums that walks you through the process fairly easily. Unfortunately, I'm running into issues installing one particular dependency: slapd. When I go to install it, I get this error message: (Reading database ... 64726 files and directories currently installed.) Unpacking slapd (from .../slapd_2.4.25-1.1ubuntu4.1_amd64.deb) ... Processing triggers for man-db ... Processing triggers for ufw ... Processing triggers for ureadahead ... Setting up slapd (2.4.25-1.1ubuntu4.1) ... Usage: slappasswd [options] -c format crypt(3) salt format -g generate random password -h hash password scheme -n omit trailing newline -s secret new password -u generate RFC2307 values (default) -v increase verbosity -T file read file for new password Creating initial configuration... Loading the initial configuration from the ldif file () failed with the following error while running slapadd: str2entry: invalid value for attributeType olcRootPW #0 (syntax 1.3.6.1.4.1.1466.115.121.1.15) slapadd: could not parse entry (line=1051) dpkg: error processing slapd (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: slapd E: Sub-process /usr/bin/dpkg returned an error code (1) After much Google searches and forum trolling, I have yet to find a definitive answer as to what's going wrong. The error messages seem straight forward enough, but I have no idea how to debug this. Can anyone offer some assistance? Again, if I'm asking in the wrong place, I apologize. If I'm indeed asking properly, then thank you for any and all help!

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