Ubuntu :: Cleaning Up GRUB & It's Implications?
Apr 18, 2010
Would like to ask for some advise regarding GRUB. I have been using Windows for a long time and recently have finally decided to switch to Linux. A good friend recommended Ubuntu and I have installed it on an 8GB USB thumbdrive for test drive. Nowadays, I mainly boot from this thumbdrive for my personal computing use. [I am a supporter of the "Immersion Learning" school. The only way for me to really learn is to force myself to use the system ] as I frequently updates my Ubuntu 9.10 via the Update Manager, I found my GRUB screen now have multiple entries like below:
[Code]....
I would like to remove the last 4 lines but:
1. I'm not sure how to do it?
2. And do i just delete the entries or do i also have to delete some system files? {this is important as i am running this on a USB thumbdrive and would like to remove any files that are no longer necessarily and keep the installation as lean as possible}.
View 5 Replies
ADVERTISEMENT
Jul 4, 2010
I see too many entries upon turning on my laptop: [URL]..There should only be 3 entries: Windows partition, Ubuntu partition, and the memtest thing, I believe. The *doubling* up of Windows and Ubuntu is due to me wiping Ubuntu, then reinstalling Ubuntu. The third entry for Ubuntu is due to re apt-get install'ing gnome-desktop. How can simplify the menu?
View 1 Replies
View Related
Dec 14, 2010
I'm dualbooting Slackware and Gentoo on my homeserver. Some weeks ago I built grub with a slackbuild-script, it was the new version of grub but it did not install properly. Since then I could only boot Slackware but not Gentoo. Today I tried to install grub from the Gentoo-partition (I chrooted to Gentoo). This did not work due to an errormessage of grub that "stage1 could not be read".
Afterwards I tried to install lilo, this failed at first attempt, but the with some warnings lilo executed. When I rebooted after the lilo-install, I had grub again at the bootscreen without the option to boot Gentoo. I decided that I have to clean the mbr of /dev/sda and found a solution with the dd command. Here my
[Code]...
Fortunately I have a second disk /dev/sdb in the server and have now installed the bootloader on the mbr of /dev/sdb. But in the long run I want to change this.
View 2 Replies
View Related
Jul 18, 2010
I have two leftover entries in the Grub2 menu after running update-grub. One is leftover from an Ubuntu installation under Windows 7 referring to a Vista boot. Never had Vista on my system, and if I were to select this option it will lock my computer. Same deal with an older Jaunty boot option - as I have identical worded options one good and one dead option.
If I have to live with these two dead selections on my Grub2 menu I will. But I'd rather get rid of them. I don't want to use an old tool for Grub editing that is no longer workable for Grub 2.
View 4 Replies
View Related
Aug 4, 2010
I recently enabled noapic on my laptop because it was experiencing strange input freezes on several distros that I tried.Ok, so it does not use the ioapics. My question is, what does this mean for the system? If it used apics before, what happens now? I am a freshly graduated computer science major, and I have worked with basics pics on projects before, but I am curious how this effects the running system.
View 2 Replies
View Related
Mar 17, 2010
Let's say I'm using one of those PCs that uses a SSD flash drive in place of a more regular HDD.
Say I burn my favorite .iso distro and install it on this PC. I install my favorite applications and seek out and install any missing drivers and generally tweak the system like you do. When I am finally happy with it, I make an image of this installation to an external USB drive.
Now, say 9 months later some of those SSD blocks have gone bad because they were erased too often. They're no longer usable. Also, because I'm a sloppy person who can't be bothered to delete redundant stuff and run make-cleans and so forth, the disk is getting pretty cluttered and takes longer and longer to do stuff.
I decide the obvious solution is to remove and save any data I need to keep, then just over-write the disk with the image I made 9 months earlier.
The question is: will the firmware be smart enough to re-map my incoming image to avoid these bad blocks on the SSD? Or am I going to wind up with some parts of the image being located on bad areas of the SSD?
View 2 Replies
View Related
Mar 17, 2010
I am surprised (from the searches I carried out on the net) that no one seems to have considered this danger so far as I can see...I'm a little concerned about the implications on security for algorithms that opaquely shift data blocks around on disks to even-out surface wear rates.In the good old days, if I wanted to wipe a file that documented my struggle to give up frosted strawberry donuts (for example) I knew where that file started on the disk and how long it was and could thus instruct the OS to wipe it with complete confidence.
Nowadays, however, with increasingly sophisticated use being made of W-L techniques and fancy, journaling file systems that separate meta-data from file content and whatnot and so forth, how can I still be sure that when I try to overwrite a personal and private file, that i AM actually doing precisely THAT, and not just nuking some virtual image of the thing which in reality remains preserved elsewhere on the disk?
View 9 Replies
View Related
Nov 16, 2010
Can anyone clean up, and thus free up space on, my hard drive. i've tried -computer janitor, constantly empty the trash, and delete stuff from the download folder. where is the stuff i've installed going, not in synaptic- i've searched for programs i want to delete there and cannot find them. meanwhile i've got like 400mb left on a 13 GB HD and cant do a thing about it.
View 4 Replies
View Related
May 29, 2011
After figuring out that this is happening on my brand new 10.04 install, I've suddenly realized it explained what was happening on the 9.10 install I'm replacing.
I'm finding out on the internet that /tmp in Ubuntu is typically a Ramdisk, thus cleared automatically on reboot - but that's not how I was ever taught to setup a linux box; I *always* create /home var et al and mount them separately, including /tmp.
So on my new 10.04 install I am informed my tmp partition is down to 12 Meg, and find K9Copy crashed last night (I initially thought this was due to a crash, but testing shows it just - leaves them there. K9Copy!) leaving a 4.5 Gig file sitting in tmp. I add a couple Gig to the tmp partition (LVM rocks btw.) and reboot. Files are still there.
I finally went in via gksu nautilus and manually deleted the data.
More research find this results in exactly the kind of issues I was having previously in my 9.10 install (albeit without the helpful warning that helped me figure it out) of Firefox and various other programs acting glitchy because they right to tmp and it's full.
I'm a n00b, and really don't know how to fix this - the 'proper' way to clean tmp seems to involve dropping entirely out of X to userlevel 0 and running from the commandline?!?! . . /tmp is supposed to be for temporary files; ideally a program should clean up after itself, but it's actually Ubuntu's job to clean this.
My going in and manually cleaning out files is insane if gksu nautilus is involved, nevermind if that's the *wrong* way. I'm certainly not the guy to write a cronjob to clean this. On the other hand - this only started in the last week or so (on 9.10) so it has to be a recent change.
View 1 Replies
View Related
Jan 9, 2010
I'm writing a script to clean my computer.
Everything is good to go except i have no clue how to clear firefox's history and whatnot from the command line.
This is one of the commands i found...: rm .mozilla/firefox/linux-blog.default/cookies.txt
It tells me no such file or directory.
View 2 Replies
View Related
Aug 24, 2010
I was installing a few programs when my computer froze, I rebooted, and the installations never finished. I didn't log in to ubuntu for several days, and forgot the exact programs that I was trying to install. Now when I try to open up Synaptic Package Manager, I get this error:E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. E: _cache->open() failed, please report.I can't install certain programs, etc.Something is screwed up. I think it has to do with the failed installations.
View 1 Replies
View Related
Nov 16, 2010
how to free up space on my measly 13GB HD? i tried computer janiotor, deleted downloads, and continuously empty the trash. i dont know what's taking up all the space or where to go to get rid of stuff.
View 6 Replies
View Related
Feb 4, 2011
I am planning to completely clean up my windows xp version and install ubuntu. I've decided to clean up win xp coz my system is under serious virus attacks. Will this installation of ubuntu version speed up my system?
View 9 Replies
View Related
Dec 19, 2009
Can i safelly clean up /var/tmp? it contains 730mb of files
View 12 Replies
View Related
Jul 14, 2010
Is there a way to deep clean the supposedly "empty" areas of HDD. I've found "shred" and similar tools by googling, but they allow either deleting a file or complete wipeout of a HDD. What I'd like to do is clean up what's left of already deleted files (which can probably be still "undeleted") on a live HDD (with useful data, which doesn't need to be destroyed).
View 5 Replies
View Related
Dec 16, 2010
My current installation setup has a separate partition for /, /boot, /home, /tmp, /usr, and /var. The problem I have is the root partition / is 98% full (4.3GB full). Cleaning temp files and log files won't help since they are on their own partition (and clean). I've removed all but two linux-images. Linux images seem to run at a size of roughly 105M. My root partition is 4.6GB. I can't seem to find any other options for cleaning up space on this partition. I have no idea what is taking up 4.6GB of space.
Disk Usage Analyzer has not been helpful since I have not been able to reconcile 4.6GB of memory with what it claims the total size of the remaining directories occupy. I've tried localepurge, gtkorphan, apt-get clean, apt-get autoclean, apt-get autoremove. I've removed all packages listed under Status -> Not Installed in the package manager. My root file system is still 98% full (4.3GB full).
View 7 Replies
View Related
Aug 24, 2009
I was wondering about the security implications of running a GUI in a VM. I know that a GUI adversely affects security, but don't know how this works when visualization is thrown into the mix.
1. Is the security of the host OS affected by the presence of a guest OS with a GUI, or is it just the guest OS that would take the hit?
2. If the host OS does not have a GUI, and the guest OS does have a GUI, would it be possible to see the GUI of the guest OS?
View 14 Replies
View Related
Jun 10, 2011
We have the standard tmpwatch installed (via yum) and it creates this script in /etc/cron.daily:
root@##### [/etc/cron.daily]# cat tmpwatch
flags=-umc
/usr/sbin/tmpwatch "$flags" -x /tmp/.X11-unix -x /tmp/.XIM-unix
[code]....
View 2 Replies
View Related
May 1, 2010
I just upgraded to 10.04, and it seems to be working well. At the very end of the process, it asked me if I wanted to delete my obsolete packages, and I chickened out and said "no". Now I have a truckload of taken space on the root drive, and am wondering if there is an easy way to complete this last step of clearing out obsolete packages now that 10.04 has been fully installed?
View 2 Replies
View Related
Oct 1, 2010
Would like to use Ubuntu Tweak on 10.10 beta. Is it safe to remove everything that its cleaning section finds? Or do I have to look carefully at what it removes? Can I just let it remove everything it finds and not worry that something I have installed will be affected?
View 2 Replies
View Related
Dec 7, 2010
I have a NFS server and I'm periodically cleaning the cache by using the following lines:
Code:
/bin/sync; /bin/echo 1 > /proc/sys/vm/drop_caches
/bin/sync; /bin/echo 2 > /proc/sys/vm/drop_caches
during the last days the cleaning process gets stucked at '/bin/echo 2', here's the process data:
Code:
27426 root 20 0 5488 704 576 R 100 0.0 896:06.34 /bin/echo 2
the process keeps running, so I find this more strange since it's not in zombie or D state.
View 2 Replies
View Related
Apr 28, 2011
I've been using Natty since alpha, and along the way several thing became broken. I would like to get my system to be as stable as if I did a clean install, but without haveing to do all the work it would take, to get everything back the way I want it. Is there a way to clean up all the leftover obsolete files and bad configurations, created by buggy beta builds?
View 5 Replies
View Related
Mar 12, 2010
I have enabled the option to keep the yum cache when updating Fedora 12 and I was wondering if there was a way in which I could remove old versions of the same package from the cache?
I have Fedora installed on more than one machine and I make them share a common update location for their updates to avoid downloading the same packages twice (bandwidth quota expensive in Australia).
how I could accomplish that? yum clean doesn't seem to have any options to only remove old packages!!!
Example: The yum update cache has:
wireshark-gnome-1.2.5-3.fc12.x86_64.rpm
wireshark-gnome-1.2.6-1.fc12.x86_64.rpm
I wish to only keep the most recent version that is wireshark-gnome-1.2.6-1.fc12.x86_64.rpm, but for all the packages.
View 4 Replies
View Related
Jun 9, 2011
Recently I moved to trashcan a big amount of data to be erased, but when I tried to erase the data it refuses to do it and keeps telling me I have to manually clean the trashcan, so anyone can tell me how I do it? opensuse 11.4 KDE 4.6!
View 1 Replies
View Related
Jul 19, 2011
Using Ubuntu 11.04. I use this command to kill frozen Flash processes ...
Code:
pgrep -P1 -f 'npviewer.bin' | xargs kill -9
IF there are no hung processes, I get the error ...
Code:
Usage:
kill pid ... Send SIGTERM to every process listed.
[Code]...
View 4 Replies
View Related
Oct 26, 2009
If we update or remove some packages (in addition manually installed software), some files such as previous version dynamic lib files are left, so it may conflict with new stuffs sometimes. Is there any efficient way to remove these kind of orphaned files all, automatically?
View 2 Replies
View Related
Dec 17, 2009
I was wondering if anyone knew about fdupes? What I would like to do is to delete duplicate copies of files that are not needed from my whole system.
View 8 Replies
View Related
Jun 28, 2010
I expect this the right forum although I don't hope anybody will answer the post. Nonethelesss, here it goes: what is the best chemical agent to rubber the pcb with? I know. Get a new keyboard. They're cheap. Yes, cheap and bad. What exactly do I mean by 'bad'? Mainly, the mechanical response of the key to a pulsation by the finger. In this sense, and as far as I know, the spring mechanism of keys is much better than any other one, except for piano keys. I'm thinking of IBM data entry machines of the eighties. And may be there ARE high quality kbd's out there... but a high-end products are likely to be expensive.
Please notice this pcb is not like the flexible ones nowadays in use. I'm speaking of a kbd from the nineties so, it is a hard board with the copper tracks and pads on one side of it (phenolic, I think). And it is the pads I need to clean (meaning rubber with a cloth, not brushing, humidified with the chemical) in order to resurrect the kbd. I've done this, using isopropyl alcohol, a couple of times and with acceptable results. But isopropyl seems to me kind of a universal recipe. I was wondering about the action of other solvents in relation to my kbd pcb.
View 14 Replies
View Related
Oct 28, 2010
Here is the o/p of df -h on my m/c
Code:
ubuntu:/$ df -h
Filesystem Size Used Avail Use% Mounted on
[code]....
View 4 Replies
View Related
Apr 19, 2010
I have installed metasploit v3.3.4 in ubuntu 9.10. But when i try to update by command msfupdate it it gives following error:
Code:
Updating Metasploit from https://www.metasploit.com/svn/framework3/trunk...
svn: Working copy '.' locked
svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)
Error: cleaning up the SVN directory and retrying...
svn: In directory 'modules/auxiliary/scanner/http'
svn: Error processing command 'modify-wcprop' in 'modules/auxiliary/scanner/http'
svn: 'modules/auxiliary/scanner/http/svn_scanner.rb' is not under version control
svn: Working copy '.' locked
svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)
[Code]...
View 2 Replies
View Related
