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• Unusable Source for Ubuntu image on Xen 3

  - by Roberto Aloi

  Hi all, I'm trying to create a new VM in Xen 3, running Ubuntu 10.4 (32 bit) as the guest OS. Xen 3 is installed on a machine running OpenSuse 11.2. I downloaded the Ubuntu image from the ubuntu.com website and I mounted it on /dev/loop0. When I try to create the new VM in Xen with the given source, Xen complains the "source is unusable". I've also checked the md5 sum for the image. It's fine. Any suggestion or hint that could help me?

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• Excel Pivot table: Calculated field based on only the first row of a group

  - by Meysam

  I've got the following data and pivot table: The Total column in the pivot table is the sum of the following calculated field: =start-TIME(7, 30, 0) I know that this calculation is wrong for what I want to achieve. I need to know how much delay I have had on each day to start the work. e.g. on 1-Oct-12, assuming I should have started my work at 7:30, 8:00 - 7:30 which yields 30 minutes delay, 1 hour delay for 2-Oct-12 and 50 minutes for 3-Oct-12. So my question is, how can I have a calculated field based on only the first row of each group in a pivot table?

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• Time tracking similar to Paymo Plus on Debian

  - by aditya menon

  PaymoPlus is free (closed source but no fees) PaymoPlus sits in my System Tray all day, and records every window/tab I open I would like to know if a similar app exists for Debian. Paymo for Windows/Mac has the additional sweet feature of being able to drag and drop working windows/tabs and the time spent into the tasks, but one can live without this. I would at least need to know which tasks got how much time in a 'sum total' calculation so I can enter that time into my Paymo reporting. Any ideas? Paymo does have a desktop widget for Linux but it is a dumb (non-sentient) manual time entry tool, not like Paymo Plus automatically recording everything being done.

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• Is there a way to get the size of Outlook Calendar meeting items?

  - by bethlakshmi

  In our Exchange environment, our company caps the size of an Exchange account at a certain size. That size is the sum of all the exchange related stuff stored on the server - includign both the Inbox and the Calendar. I can tell with the Mailbox properties, Folder Size... window that my Calendar is a good 50% of my account's footprint. Is there any way to get a more detailed view of what meetings in the Calendar are taking up the space? Given the general pattern of incoming mail, it's my belief that 2-5 meetings are responsible for 75% of the memory consumption... I just need to find which meetings are the problem... and with my current calendar, it's a bit like finding a needle in a haystack. Anyone got a trick for this?

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• tcp handshake failed.client send rst (after syn-ack). can any one advice?

  - by user1495181

  architecture: 2 linux computer connected . on the second (192.168.1.1) one run apache server . I have a small program that take tcp packets from nfqueue change the dst ip to 192.168.1.1 in case that the dst ip is 192.168.1.2 (i know that i can do it with iptables , but my program will do more things in the future), fix check sum and return to the queue. if i call to telnet 192.168.1.1 , means that my program dosnt need to do any manipulation, handshake is OK. If i call to telnet 192.168.1.2 , my program change the dest. server get the syn and return syn-ack, but right after getting the syn-ack the client send rst. Can anyone advice? wireshark of the telnet tcpdump of the telenet above

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• Ubuntu Linux: Process swap memory and memory usage

  - by David Halter

  My Ubuntu eats more memory than the task manager is showing: sudo ps -e --format rss | awk 'BEGIN{c=0} {c+=$1} END{print c/1024}' 1043.84 free -m total used free shared buffers cached Mem: 3860 1878 1982 0 20 679 -/+ buffers/cache: 1178 2681 Swap: 2729 1035 1693 That's strange. Can someone explain this difference? But what is more important: I'd like to know how much memory a process is really using. I don't want to know the virtual memory size, but rather the resident memory plus swap of a process. I have also tried to output the format param "sz" of 'ps', but the sum of this is to high (5450 MB) (param 'size' gives 8323.45 MB). Are there any other options? I really want to use this, to determine which programs/processes are eating to much memory (and swap), to kill them, because hibernate might not be working if the swap partition is to little.

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• What software this log file comes from? [closed]

  - by mickula

  From what software comes this logfile? Please specify full name. Internal IP Threshold FlowsDiff 40 flows/s, Diff: 73 flows/s Sum 26.962 flows/300s (89 flows/s), 32.162.000 packets/300s (107.206 packets/s), 1,198 GByte/300s (32 MBit/s) External 87.98.238.221, 26.958 flows/300s (89 flows/s), 32.156.000 packets/300s (107.186 packets/s), 1,198 GByte/300s (32 MBit/s) External 89.230.69.49, 2 flows/300s (0 flows/s), 2.000 packets/300s (6 packets/s), 0,000 GByte/300s (0 MBit/s) External 89.231.190.149, 1 flows/300s (0 flows/s), 3.000 packets/300s (10 packets/s), 0,000 GByte/300s (0 MBit/s) External 89.239.101.20, 1 flows/300s (0 flows/s), 1.000 packets/300s (3 packets/s), 0,000 GByte/300s (0 MBit/s)

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• How can I get the size of an Amazon S3 bucket?

  - by Garret Heaton

  I'd like to graph the size (in bytes, and # of items) of an Amazon S3 bucket and am looking for an efficient way to get the data. The s3cmd tools provide a way to get the total file size using s3cmd du s3://bucket_name, but I'm worried about its ability to scale since it looks like it fetches data about every file and calculates its own sum. Since Amazon charges users in GB-Months it seems odd that they don't expose this value directly. Although Amazon's REST API returns the number of items in a bucket, [s3cmd] doesn't seem to expose it. I could do s3cmd ls -r s3://bucket_name | wc -l but that seems like a hack. The Ruby AWS::S3 library looked promising, but only provides the # of bucket items, not the total bucket size. Is anyone aware of any other command line tools or libraries (prefer Perl, PHP, Python, or Ruby) which provide ways of getting this data?

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• Can Excel show a formula and its result simultaneously?

  - by nhinkle

  I know that it's possible in Excel to toggle between displaying values and displaying formulas. I'm required to turn in assignments for a statistics class as a printed Excel sheet showing both the formula and the result. Right now the instructor makes us either copy the formula and paste it as text next to the computed value, or copy the value and paste it next to the formula. This is very inefficient, prone to error (if you change the formula or values after doing the copy-paste), and generally a waste of time. Is there any way to have Excel show the formula and its value in the same cell? If not, is there any function which will display the formula from a referenced cell as plain text, e.g. =showformula(A1) which would print out =sum(A2:A5) instead of 25 (if those were the formula and value of cell A1)? I'm using Excel 2010, but a general answer that works for any recent edition of Excel would be nice.

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• Root cause for high CPU usage; which measurement to trust more: Windows Task Manager or Process Explorer?

  - by p.campbell

  Consider this Windows 8.1 machine (in-place upgrade from Windows 8) with differing reports on its CPU usage. The machine is idle, and has been for 3 days. There are no CPU intensive tasks running currently nor over the 3 day idle period. Windows Task Manager is reporting CPU usage constantly at an incredibly high value (and increasing over time!) at around 75%. Process Explorer from SysInternals reports that the CPU usage is much different at around 42% How does Process Explorer report 42.14% usage, but its columns report Idle at 57%, with the sum of the other processes not even approaching 10%? Which of these two values should I trust more, and why should it be trusted over the other measurement? How can I actually determine which process is causing Task Manager to report its values? These Proc Exp metrics were taken with Administrator privileges, and with option 'Show Details for All Processes' Click for larger view:

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• Emacs quail: Less verbose completions?

  - by kdb

  Emacs's quail functionality with (set-input-method "TeX") is great for typesetting mathematical notes in plain text. It even has completions, but, well... After \su<TAB> I get Possible completion and corresponding characters are: \su: - \sub: - \subs: - \subse: - \subset:(1/1) 1.? \suc: - \succ:(1/1) 1.? \succa: - \succap: - \succc: - \succcu: - \succe: - \succeq:(1/1) 1.? \succn: - \succna: - \succns: - \succs: - \succsi: - \sum:(1/1) 1.? \sup: - \sups: - \supse: - \supset:(1/1) 1.? \sur: - \surd:(1/1) 1.v Is there some possibility to make the completion output less verbose, showing only the full completions rather than the full paths?

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• Free / Cached / Available memory on Linux

  - by pkoraca

  I have read that linux uses free memory for caching, to make system faster. However, both Nagios and Paessler PRTG monitoring system show me that my memory usage is critical. I could change Nagios mem_usage script to sum free and cached memory, but would that be correct information? I doubt that they misunderstood Linux memory usage. Lets say I have 8 GB RAM. 5 GB are used, 2 GB is cached, and I have 1 GB of free memory. Real available memory should be free+cached (3 GB)? If some new application would need additional 3 GB RAM, could it take everything from cache and free without using swap, or is there a minimum that should be in cache? Real example: $ cat /proc/meminfo MemTotal: 5984256 kB MemFree: 137052 kB Buffers: 140484 kB Cached: 3439616 kB SwapCached: 244 kB Active: 3148824 kB Inactive: 2341768 kB ... My monitoring tools show that I have 137 MB free RAM, however I have ~3,5 GB in Cache. Thanks!

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• Word table copy/drag formulae like Excel

  - by tumchaaditya

  I am inserting formulae into a word table to get subtotals for rows and columns and a grand total. My problem is, I have got large number of rows and I don't want to enter the formulae manually in each cell. I cannot use =SUM(LEFT) because the subtotal does not have all the columns. So, is there any way to drag the formulae like we do in excel(bottom right corner of selected cell)? I cannot send the table to excel and copy it back because it would ruin the formatting which took a lot of my time.

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• Showing the right form of total I want in a pivot table

  - by Maria

  I have a pivot table that shows how many condoms have been handed out and on how many distinct occasions. So the value in the pivot table is a number between 1 and 30 (no. of condoms handed out at one specific occasion) and then I can see – for each month – how many times that happened. For example, three times, two condoms were given out, four times, one condom was given out, et cetera. The total is set on Count and it shows the total of how many times condoms have been given out. However, in the total I want it to show the sum of all the condoms that been given out each month – is it possible to change this somehow?

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• Cross join problem query

  - by user66121

  i have following table structure HUB_DETAILS (Master) Branch_ID Branch_Name VTRCheckList (Master) CLid CLName VTRCheckListDetails (Detail) CLid Branch_ID VTRValue vtrRespDate Actually when i run the following query it does comes with all the Checklist names alongwith all branch names but shows the value in every branch infact only 1 branch has data in the given date criteria. it should show 0 if there is no data in checklist of the respective branch. SELECT VTRCheckList.CLName, Hub_Details.BranchName, sum(cast(VTRCheckListDetails.VtrValue as int)) as 'Total' FROM VTRCheckListDetails INNER JOIN VTRCheckList ON VTRCheckListDetails.CLid = VTRCheckList.CLid CROSS JOIN Hub_Details where Convert(date,VTRCheckListDetails.vtrRespDate, 105) >= convert(date,'01-01-2011',105) and Convert(date, VTRCheckListDetails.vtrRespDate, 105) <= convert(date,'30-01-2011',105) GROUP BY VTRCheckList.CLName, Hub_Details.BranchName

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• Alternative to Rhythmbox that's light on CPU.

  - by D Connors

  I'm running Ubuntu Lucid on my netbook, and I like listening to music while doing other stuff. Problem is: Rhythmbox is constantly consuming 7-9% of my CPU while it's playing. Now, 9% might not seem like much, but it's more than double the sum of all other processes, and it's a battery killer. Now, I know that any music player will be active (not idle) while playing, and thus will consume more CPU power than idle processes. But I'd still like to know if there's a good music player for Ubuntu that's light on CPU.

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• Using pivot tables to group transactions

  - by andreas

  I have my bank account statement and what I would like to do is group the descriptions of the transactions together with their debit or credit and sum their total. I could then see that, e.g., for ebay.com my total debit was $2000, etc. Description Debit Credit A 1 B 1 A 1 B 1 C 1 D 1 A 1 What I want to do is use a pivot table Description Debit Credit A 3 B 2 C 1 D 1 I am no able to do that, as I can't group the description and have additional debit and credit columns -- I get them all in rows with blanks.

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• Excel Subtotal if adjacent column is not blank

  - by Head of Catering

  I'm trying to create a subtotal for a range that excludes rows that don't have a wholesale price. I have a range of products, prices and units that have subtotals by brand, although the brand subtotal is a sum and not a subtotal because the total needs to be displayed regardless of what the user chooses to filter. These subtotal rows do not have wholesale prices. Here is the sumif formula I'm using to calculate totals in the summary area above the range: =SUMIF(B5:B12, "", D5:D12) I need to have a subtotal formula that works the same way. Is there an equivalent to the sumif formula for subtotals? Or maybe a worksheet function I can use? I need to be able to do this without using VBA.

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• How to fix a folder content glitch in a FAT32 filesystem?

  - by kagali-san

  at my 450gb fat32 partition, a directory has a wrong content after improper usb drive disconnect; was: /files (total 250gb) /files/folder/ /files/folder2/ /files/somethn.gs Now: /files/weir?d?name, 5 mb Windows and Linux are saying that most (400 of 450gb) disk space is occupied, but sum of all files/dirs is about 130gb, so it seems that files are still there?. No write attempts since discovery; Rejected tools/methods: chkdsk(Windows7): checking completed, but no changes. fsck.vfat: attempted to ruin drive even more (there is a lot of LFN and unicode names). EasyRecovery. Didn't see the target folder (maybe wrong scan options? tried best match, but not raw scan - it would take days since the drive is usb 5200 rpm..).

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• Web-Server directory permissions

  - by MLS

  Hello All, I would like some help understanding web-server directory permissions. Apache, CentOS, PHP, Mysql Example, I have multiple sites in /var/www/html They are in paths like: /var/www/html/www_domainname_com inside each site I might have a path like /lib/mysql/ like PHP connect stuff, database config, etc. What should me permissions be so that someone cannot just browse to that directory? Should I just .htaccess them? I have apache:apache as the owner of all my web directories. Can I prevent someone from crawling certain directories of my web-server? I have a robots.txt, but what is to say the crawler obeys it? So to sum up: 1. What is the best owner/permission set for my sensitive files that the web-server or php or mysql needs, but I dont want people browsing to? Can I prevent straight out crawling of portions?

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• Is there a way to alter Zend Studio PhpDoc preferences?

  - by Tower

  Hi, I'm trying out Zend Studio trial and I have a few things on my mind related to PhpDoc. If I have the following code: public function sum($a, $b) { echo $a + $b; } and then I start typing /** in the front of the function and press Enter, Zend Studio automatically makes the following text: /** * [cursor] * @param unknown_type $a * @param unknown_type $b */ However, I want to customize this so that it also includes @return void automatically since there's no return inside the function. Is there a way to do this? And what about things like @access? It's obviously "public". Another thing I want is that when I create a new file and I use the code templates with ${user}, it will use my Windows account, but I want it to use something else - is there a way to specify this "user"?

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• How to monitor RAM usage for Hyper-V VMs ?

  - by Mac

  A bit of context first : on Windows 2008 Standard x64 with 8Gb RAM, I have 5 VMs running which should take up 1664Mb RAM (3*256Mb+384Mb+512Mb). There is nothing else running on this server except the basic OS components (this not a Core installation). I know that each VM will use more RAM on the host than what has been configured in Hyper-V. But when I run the task manager, it says 6.7Gb used ! If I sum up the RAM used by each process in the task manager (showing all users processes), I get to something around 1Gb... So : how can I check how much RAM each VM is really using on the host (it does not seem to be available via task manager) ? Note that I am aware of the fact that my problem could be unrelated to VM RAM usage, but I would still very much like to know how to do this.

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• Pivot tables in excel

  - by andreas

  Hey GUYS i have my account bank account statement and what i wanna do is group the description oof transactions together with their debit or credit and sum their total . So that i can see that for ebay.com my total debit was 2000 $ etc... no the data are like this (btw how do you format this?) Description Debit Credit A 1 B 1 A 1 B 1 C 1 D 1 A 1 ETC.... what i wanna do is using a pivot table Description Debit Credit A 3 B 2 C 1 D 1 I can seem to be able to do that as i cant group the description and have additional debit and credit columns.....as i get them all in rows with blanks

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• How to convert text to decimal in openoffice calc?

  - by wurlog

  I have a column which contains: € 53,28 € 1.336,0 € 69,90 € 296,50 € 899,00 € 149,90 € 697,40 and so on. I want to sum the column up, but for openoffice it is text and not a decimal. What I did: =SUBSTITUTE(F7,".","") to get rid of the the dot |€ 1336,0| =SUBSTITUTE(G7,"€","") to get rid of the euro symbol | 1336,0| =RIGHT(H7, LEN(H7)-1) to get rid of the blank |1336,0| =SUBSTITUTE(I7,",",".") to change the comma to dots |1336.0| and after that I copy the whole column and paste it as "unformatted text" only after these steps I get a number with which openoffice can work. Isn't there an easier way???

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• Slurm: How to find out how much memory is not allocated at a given Node

  - by PlagTag

  i am new to SLURM. I am searching for a comfortable way, to see how many memory at an node/nodelist is available for my srun allocation. I already played around with sinfo and scontrol and sstat but none of them gives me the information i need in one comfortable overview. I had the idea to write a shell script, in order to fetch all fields of all jobs from scontrol and sum them up. But there must be an easier way. Would be great if anyone has an hint or idea!

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