Ubuntu Installation :: What Formula Does The Installer Use To Decide The Default Sizes Of /, Swap, And Home
Mar 25, 2010What formula does the installer use to decide the default sizes of /, swap, and home?
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Debian Installation :: Installer Incorrectly Setting Crypttab For Encrypted Swap?
Oct 29, 2014Setting up a randomly passworded swap partition in Debian installer with the default settings (aes-xts-plain64 w/ AES-256 key strength) gives the following line in /etc/crypttab:
Code: Select all####_crypt /dev/#### /dev/urandom cipher=aes-xts-plain64,size=256,swap
However according to cryptsetup manpage when using XTS mode the key size must be doubled so in effect the 'size=256' parameter above is actually resulting in AES-128 strength, no? To get 256 bit key length the size option should be set to 512. Quote from cryptsetup manpage:
For XTS mode (a possible future default), use "aes-xts-plain" or better "aes-xts-plain64" as cipher specification and optionally set a key size of 512 bits with the -s option. Key size for XTS mode is twice that for other modes for the same security level.
Red Hat :: Not Possible To Set Default Paper Sizes?
Aug 31, 2010The "[SOLVED]" attribute to the How to set defaulter size in RHEL5 thread notwithstanding, the problem really is not solved. I've set my default language to both "C" and to "EN-us" and the problem is that absolutely every single time I print, I have to meander through varying layout print menus to find the "A4" setting and change it to "letter". That, or sacrifice the last two lines on every page because the default size is larger than the actual size. Bad default. It is not unique to Red Hat/CentOS, of course. Same problem exists on Debian and SuSE, too. Why is this such an intractable issue? Why is there not some simple and obvious way to say, "squish all instances of A4 (or "letter") and replace with "letter" (or "A4")!"?
View 5 Replies View RelatedUbuntu Installation :: Getting A 50GB Root Partition 3 GB Swap And The Rest For Home?
Feb 25, 2010I want to install from scratch or change a current system, which ever works best to have the following partitions: I have a 160GB HD and want a 50GB root partition 3 GB swap and the rest for home. When i go throught the guided partitioning process the largest i can get is 8GB. The root partition is the bootable partition correct?
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Jan 12, 20101. Pentium 4 with 1.8 gh 2. 512 ram 3. 15 gb hard disk. installation specially regarding partition option (eg.. how much alloted should be for swap/ root/home etc)
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Oct 24, 2010in maverick the default package installer (when I double click on a .deb) is Ubuntu Software Centre, how can I make the default package installer from lucid (was it called "dpkg"?) the default again? Ubuntu Software Centre is too slow and freezes every time I click on something, can it be replaced?
View 2 Replies View RelatedDebian :: Installation Graphic Card HD 6750 Formula With Ubuntu
Sep 5, 2011However I have problem to install my graphics card Asus ATI Radeon HD 6750 Formula....
View 4 Replies View RelatedUbuntu Installation :: Order Of Partitions For Root / Home And Swap With Respect To Windows Partitions?
Feb 9, 2011I am installing Ubuntu on the same hard drive as Windows 7. The partitions of Windows 7 have already occupied the left part of the hard drive. From left to right, the Windows partitions are one partition for Windows booting, one for Windows OS and software installation, and one for data which is planned to mount on Ubuntu. I was wondering how to arrange the order of partitions of root, home and swap, i.e. which is on the left just besides one Windows partition, which is in the middle and which is on the far right?
View 1 Replies View RelatedUbuntu Installation :: Default Home Folder For First User?
Jun 12, 2011when installing ubuntu, the installer asks for username/login/password of the first user which will be allowed to sudo and administer the system... let's call that user "ubuntu"
what if I want to:
1) Automate those answers (which preseed variables should I set if any?)
2) Change the default home directory only for that user... let say I want it to be /ubuntu instead of /home/ubuntu (because I want /home/ to be empty after setup).
I know I could tweak /etc/passwd after setup (before first reboot) but I would like to know if there is a "clean way" to do that.
Ubuntu Installation :: Restore The Home/username File To A Default State?
Jul 1, 2010System Specs:
CPU: Intel Core2 Quad Extreme X9450
Memory: 4GB, Patriot DDR3 PC3-10666 1333Mhz
MoBo: ASUS P5E3 Delux
OpSys: Ubuntu 10.4 (64Bit)
Short Description: I wanted to see what would happen if I upgraded from Kubuntu 8.04 (32bit) to Ubuntu 10.4 (64bit) by copying my home directory then restoring it after the upgrade. It almost worked sans a few interesting problems that I'm hoping might teach me a bit more about how Ubuntu works.
Detailed Description:
1. I copied my home directory to another hard disk.
2. I let the installation disk for Ubuntu 10.4 (64bit) reformat and overwrite the disk that contained Kubuntu 8.04 (32bit) and chose to maintain the partition and swap size for that disk.
3. Once I worked out some bugs in the hardware and got the OS up and running smoothly, I "merged" my home directory with the backup I had created in step one. (Merge was an option given to me when I was attempting to paste the files copied from the backup disk.)
4. It should also be noted that I was trying for a while last night to install TrueCrypt. In order to do that I had to check its "sig" file. The GUI for the gpg installation was complaining that I didn't have gtk+-2.0 installed so I installed gtk (I think it might have been 2.4 or whatever the most recent one was) from source without any errors. It got late so I gave up on attempting to install TrueCrypt any further.
The Results: This morning the computer seemed to boot faster than it had been before, but I was left without a functioning Theme manager. It will open, and I can click on all of its features, but nothing seems to do anything. For example: If I right click on the desktop and choose "Change Desktop Background" Then select "Get more themes online", nothing happens. Also if I select the "theme" tab, there are only two themes listed when there used to be about 9 by default.
Questions: 1.) Is there a way to restore the files that are important for correct system operation (possibly all the files starting with a dot ".*") in my home directory to there default state like they would have been from a fresh install, but without doing a fresh install and without loosing any of the documents or archives in my home file?
2.) Is this even the correct approach or might this cause more problems? For example, if your computer had this problem would you try and restore the home directory, or would you troubleshoot each problem as it arises one at a time until everything became stable?
3.) What could I do next to continue troubleshooting the theme manager?
I'll keep researching and trying to find some links that can help while I wait for your responses. If I find anything that helps I'll post the fix here.
Installation :: Decide The Parameter Value Of Root In Grub.conf?
Jul 21, 2010After I installed Linux OS(for example:SuSE10,redhat5),the [root] parmeter of [kernel] in created grub.conf seems that sometimes it's defined to device name.sometimes it's defined to Label or sometimes UUID. So ,I want to know what is that relative to? Hard disk type or OS version or both?
View 1 Replies View RelatedUbuntu :: Changed 2nd CD/DVD Player From Swap To Default
Aug 22, 2010I'm running Windows 7 and Ubuntu(latest version), dual boot, and I've locked myself out of Ubuntu. I have 2 hard disks and 2 cd/dvd drives. I was working on getting my 2nd hard drive to mount on boot up and succeeded. I should have left well enough alone, but I changed the 2 cd drive from swap to default, (just to see if it would mount automatically), and now I can't boot into ubuntu. It just hangs. I can't even in get using recovery mode because the updated graphics drivers won't allow me to read the screen during the boot into ubuntu until the boot has completed. If anyone has any ideas, please help. It had been working pretty well until this set back.
View 1 Replies View RelatedUbuntu :: 10.10 Maverick - Default Swap Size?
Dec 26, 2010I recently upgraded my laptop from 10.04, to 10.10. -- And in so doing reinstalled the OS from scratch, and letting the system pick the partition sizes.
Code:
My system:
2GB RAM
160 GB HDD
HP 6910p
Here's the question: The Installer set aside 6GB as Swap space, leaving 154GB as a / partition for everything. I had always thought 2GB was plenty, or as a general rule twice the Physical Memory size, which would only be 4GB swap, not 6.
Can / should I reclaim some of that swap space, if so how much. -- I can using tools like GParted to resize the partitions. -- Or just leave it as is. Unfortunately, the Ubuntu 10.10 installed did not seem to use GParted, so it was a little harder to set up initially.
Ubuntu :: Which Is Root Swap Home Labels The Partitions?
Apr 30, 2010Is there a command that tells you what the partitions are fdisk -l shows partitions I want to know which is root swap home etc, Labels the partitions?
View 6 Replies View RelatedUbuntu :: Setting Home / Root And Swap Directory
May 15, 2011I've set a side 80GB on a separate partition, I have 4GB of RAM. I know it will ask me to set /home /root and /swap. How much should I set each one to be with my partition size and RAM.
View 2 Replies View RelatedUbuntu :: Changing 10.10 Default Package Installer?
Jan 20, 2011I am using Ubuntu 10.10. I have a situation to where I need to use synaptic package instead of Ubuntu Software Center. How do I change the default *deb package manager from "Ubuntu Software Center" to "Synaptic Package Manager".
View 3 Replies View RelatedUbuntu :: Changing 10.10 Default Package Installer
Jan 20, 2011I am using Ubuntu 10.10. I have a situation to where I need to use synaptic package instead of Ubuntu Software Center. How do I change the default *deb package manager from "Ubuntu Software Center" to "Synaptic Package Manager". I have users that are not to cli savvy so I need them to be able to do this in the GUI. I have clients that are having trouble installing a package that hangs because of the installation agreement(terminal window) that has to be answered but because the terminal window is not being displayed, it cannot be viewed it just hangs so I want them to use synaptic manager.
View 13 Replies View RelatedUbuntu :: Where To Store System, Home And Swap Partitions On Two Disks
Dec 22, 2010I have got 2 disks available and would like to create 3 main partitions: one for file system (maverick), one for home folder and one for linux swap.
I read many howtos and now I feel more confused!
I would like to obtain the more efficient solution in order of speed (performance): as far as I can understand (not so far) .. it seems that the best choice is:
Quote:
disk 1: [beginning] ubuntu | home | others [end]
disk 2: [beginning] swap | others [end]
My situation now is, according to guides I read before:
Quote:
disk 1: [beginning] ubuntu | others [end]
disk 2: [beginning] home | others | swap [end]
now .. before moving all my staff ..
I thought to have understood that ubuntu use swap only for hibernation / suspend activities, and therefore it's recommendable to put the system at the beginning of one disk, and the home folder at the beginning of a second disk in order to have quickly two disk reading / writing on the right position without moving too much and spend time.
But now I'm confused because it seems that ubuntu DOES use swap for normal activity (and so it's better to put it) at the beginning of a second disk.
I always saw my swap next to zero during my activities .. is ubuntu using swap like windows with pagefile.sys?
Ubuntu Installation :: Decide On "File System" During Installation?
Jun 18, 2010On choosing the desired partition, where I wish to install Ubuntu, screen asks to choose the "File System" from the drop-down menu.How to decide on which one to choose from?What's the implication of choosing EXT4 over EXT3?**Point= Iam now fed up with 10.04 release since it is crippled with sporadic issues like --"Shaking Screen on Desktop load" & an abrupt "Screen Blackout"..Now I wish to roll-back to 9.04 again, the ONLY release of Ubuntu that worked "Perfectly" for me without posing any nuisance
View 9 Replies View RelatedGeneral :: Sharing /home And Swap Partitions Between Several Distros?
Jan 18, 2010I have a new laptop, the HDD is 160 GB size, I would like to install several linux distros, such as Debian, UbuntuStudio and BackTRack, the HDD partition would be like this:
- first logical partition (100 GB): 3 ext3 extended partition (1 partition for each distro)
-second logical partition (2 GB): swap
-thid logical partition (55 GB): ext3 /home partition
-four logical partition (3 GB): free space
is possible to share the swap and the /home partition between the 3 distros?
General :: Swap Partition To The Back Of The Disk By Default?
Sep 8, 2011As far as I know hard drives are faster at the beginning of the disk. If this is true, why does Ubuntu put the swap partition to the back of the disk by default?
View 1 Replies View RelatedOpenSUSE Install :: Swap / Root / Home Partition Size
Jan 13, 2010want to install 11.2 version. my machine config is as belows. pentium 4 with 1.8 gz, 512 ram and 15 gb hard disk. i want to know what should be the partition size specially for swap, root ,home etc.and what version i.e genome or kde should i install.
View 1 Replies View RelatedUbuntu Installation :: Can Other Screen Sizes Be Added To Nouveau
Oct 14, 2010I had to install Ubuntu 10.10 5 times before the boot problem was fixed, but only now to find that the Nvidia GE Force 3 Ti200 video card is NOT supported by the current Nvidia drivers and the legacy Nvidia 96 video drivers has a known bug which may never get fixed.Currently I am running the 1024 x 768 screen size under Nouveau, but how can I change this to 1920x1080 ? Will creating an xorg.conf file work?I did have the GE Force 3 supporting the new 1920x1080p monitors under VGA mode and the screen looked fantastic in the past.
View 1 Replies View RelatedUbuntu Installation :: Partition Sizes For Dual Boot System
May 29, 2010I plan on installing Ubuntu 10.04 and it will be my first Ubuntu install. I plan on dual booting with windows 7 and I would like advice on partition sizes. I have a 250 GiB drive and my planned partitions are as follows.
Sda1 (PQSERVICE) 12GiB This was pre-installed should I delete it
Sda 2 (System Reserved) 100MiB This was also pre-installed should I delete it
I know one of the above is the windows recovery partition but I don't know which one
Sda 3 (Gateway) 25 GiB This will contain windows will 25 GiB be enough
Extended partition
Logical 1 10 GiB / the main Ubuntu partition 10 GiB should be enough
Logical 2 1 GiB /home this will just hold settings so 1 GiB will be enough right?
Both above partitions are ext3
Logical 3 3 GiB swap partition I have 1 gig ram upgradeable to two
Logical 4 180 Gib shared NTFS partition
I am new to Ubuntu and would like to know if you think this is proper. I have already defragmented the hard drive and will make the partitions in Gparted on Ubuntu live test from usb drive.
Debian Installation :: Change Partition Sizes From Defaults?
Aug 19, 2010I'm running the installer, and "Guided Partitioning" selected partition sizes I'm not completely happy with. I selected separate partitions for /home, /var, /usr, /tmp etc, and by default it gave me only 5GB for the /usr partition. I'd like to take some space away from /home and give it to the /usr partition, but I can't figure out how to do that using the menu options available.
View 7 Replies View RelatedFedora :: Importing Formula Into A Ppt In Openoffice
Apr 6, 2011i have edited a formula in formula editor and saved that file ... i wanna import that formula into my ppt (odt i think) .. ( i know its dumb question dumbest i ever asked .. i need to prepare my presentation real quick say 1/2 hr from now
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Nov 3, 2010I could not number formula in Open Office writer relative to a chapter. I would like to numbering like 1.1, 1.2, 1.2. 2.1 etc. Is it possible. I searched in Helps, but doesn't found anything!
View 1 Replies View RelatedSoftware :: OpenOffice.org Calc Formula To Check If Day Is Last Day Of Month
Jan 19, 2009I've got a CD which does the monthly compounding on the last day of every month instead of every 30 days. The bank gave me a print-out (of course), but I'd like to make my own Calc spreadsheet too. My question is: How do I check whether a certain day is the last day of the month? In other words, I'm looking for something that returns TRUE if it's the last day of the month and FALSE if it isn't. I'm using OpenOffice.org 2.4.1 on Ubuntu 8.10.
View 1 Replies View RelatedUbuntu :: OpenOffice Calc Fails To Include Sheet References In VLOOKUP Formula
Nov 1, 2010I am trying enter a VLOOKUP formula in Sheet1, where the array is in Sheet2. For both the items, I have used mouse to enter cell references, which I always do.
1. Search criterion has been entered as a range, which is different from previous versions and not a very comfortable situation.
2. array reference completely missed entering Sheet2! in front of A1:C13. Only way out of this is manually entering the sheet name, which is not only cumbersome but also ludicrous. Moreover, we never had to do it like this in the past. I am using OpenOffice.org 3.2.1 in Ubuntu 10.10.
Ubuntu :: Video Card Swap - Screen Using A Default Video Driver
Jan 25, 2011If I take out the existing video card and put in another one of a different type (but not a different brand), how does Ubuntu behave? I know what Windows typically does. Windows starts up the screen using a default video driver which is at least 1024 by 768 and then asks you what this new bit of hardware is and asks where the drivers are. I'm pretty sure Ubuntu has default drivers of its own, but I don't know what their resolution is.
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