I'm trying to add "Root File System on NFS" to overcome some issues that I seem to be having putting VM's on an NFS share. I'm trying to configure the kernel, but can't for the life of me find the option to add Root FS on NFS. Is this removed from the configurator with CentOS 5.5/Xen, or is it configured already?
View 1 RepliesI have a problem that is probably simple, but have not yet found the answer on any forums or by Googling. First my system specs:Tyan 2610 motherboard w/ 2 x PIII 9334 gig PC133 SDRAM
1 x 5 gig hd (system)4 x 500 gig hds w/ 3Ware 7500 controller set to RAID 5, (1.5 TB) mounted as /homeCentOS 5.3 running my smb and nfs mountsMy problem is that I have run out of space on my / (root) file system, (the 5 gig). Since I am planing to rebuild my file server with larger hard drives, (2 x's 60 gig SATA's set to RAID 1, 6 x's 1.5 TB at RAID 5), within the next 2 months, I would like to try to clean out any unneeded crap rather than adding a hard drive and expanding my root file system. I have done the following:
Removed old unused kernels
cleaned up /var/log/
cleaned up /tmp
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I currently have a server with the default VolGroup00 that contains logical volumes for the root file system and swap using logical volumes LogVol00 (root) and LogVol01 (swap.) I need to take space from LogVol00 and move it to LogVol01. I have found documentation for increasing the swap, and the resizing the logical volumes. However in the documentation and the man pages it says that I have to reduce the size of teh file system on the logical volume I am going to shrink. I have found documentation resizing the logical volumes but not the file systems.
View 6 Replies View RelatedCentos 5.3 includes Ext4 and improved support for encrypted file systems but it appears to be aimed at laptop/desktop systems, in that a password must be entered at boot time.
Is it possible to have a server with an encrypted root file system boot up without entering a password?
Mandos will do it...
http://wiki.fukt.bsnet.se/wiki/Mandos
...by serving up the password from another server...
http://packages.debian.org/squeeze/mandos
...to a client loaded into the initial RAM disk environment...
http://packages.debian.org/squeeze/mandos-client
...but it's not available on CentOS, and is only in Debian unstable.
Is there a similar (or any) solution for CentOS?
In particular, I'm envisaging encrypted virtual machines being served passwords from their virtual host.
Alternatively, the data that *really* needs to be protected could be encrypted while the system core remains unencrypted. But then the keys to decrypt the file system must be stored in the unencrypted portion, so this is not an effective method.
I work for a company that makes portable devices running Linux and I was recently asked to make the underlying file system read-only for "security" purposes. Since the distribution is based on LinuxFromScratch, I know that very little writing happens at run time. So, even if the device runs on a usb flash device, I doubt that putting the root file system RO will be that beneficial. I am actually more concerned about a process actually breaking because it cannot open a file in RW mode than a process going rogue and filling the root file system with log files, etc. I'd really like to ear what kind of advantages disadvantages there really is with read-only file-systems.
View 6 Replies View Relatedwell i was messing with the Gparted live disk and i deleted a small partition of about 6 megs (yes megs). trying to be efficient doing some cleanup of course. but when i rebooted my Fedora 10 i get the black screen saying," could not find the file system. /dev/root". ok, i am useing the fedora 10 live cd now. can i copy that file to my hard drive from the cd? or do i need to reinstall Fedora?
View 1 Replies View RelatedI have worked in linux for a long time but never managed the system until I got my own server, which is running Fedora 14. I have a 3 TB Drive and apparently can only handle 2 TB. At least the Disk Analyzer is telling me that 2TB is 100% max capacity. Also viewing disk analyzer, I am only using 50GB of my 2TB but I am out of memory in the Root file system. If I run df -h, I get he following:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_dev1-lv_root
50G 40G 7.2G 85% /
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Trying to install from netbootin...gives me that error.
View 4 Replies View RelatedI have been using Ubuntu 9.10 Desktop version for around 1 month then i stoped using after installing windows 7, as I knew that there were the 10.04 version coming. So when it was released i went to torrent download the file and burned it on a cd. After that i insert the cd and use the wubi installer in there as i want to install them side by side. so after installing ubuntu i restarted the system and got into it. After a few minutes it appeared this error message "Not root file system is defined. Please correct this from the partitioning menu." So i was expecting it to be downloading problems. I went on to ubuntu website requested for a CD and it came today. So i inserted the cd did the same thing again.
View 9 Replies View RelatedIs it possible to run fsck on the root file system?
My Ubuntu 10.04 seems to be checking it's fs at boot...
It shows that the file system is in use and can get severely damaged!
Or the only possibility is to run it from a live CD?
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).
Classic partition problem apparently. What do I do? the 11.04 wubi doesn't give a lot of installation options, so i just selected C drive, and gave it 10GB of space. instilled it, and when it goes to the desktop menu, that pop up appears saying No root file system is defined. Please correct this from the partitioning menu
In dual booting with XP. what do I do?
I'm trying to install 11.04 and get the error warning in the title. It says "Please correct this from the partitioning menu."How do I do that?I don't see any options for that.Puppy will already boot from that device and has grub installed.
View 9 Replies View RelatedI try to encrypt root file system on Opensuse 11.1 and I have found up to two possibilities.
1. [url]
2. [url]
In the first case, i have a Problem with entering password, for each partition on encrypted disk, i must enter my password.(For 3 partition 3 times)
And in the second version to get i nowhere.
Code:
I am getting an error while booting my linux system: Can't mount root file system.Boot has failed, sleeping forever.OS is Red hat enterprise linux 6, With Intel P4, 1 GB Ram, 120 GB IDE hdd seagate. it was working fine from last 4 days. from today morning this is giving error. only mysql & apache is installed in it.
please suggest is there any way to repair the root & boot volumes. waiting for valuable reply.
Is it possible to encrypt the Entire root file system using LUKS.I am currently using Ubuntu 10.4 LUCID.After several hours of Google ,most of the articles were focusing to "Encrypting a drive/removable media ".. My aim is to encrypt whole File system which is currently using.
My Concerns, How to Encrypt a running file system? Will it lead to data loss?
im trying to prepare my partitions for fresh installation. The partition manager didnt list anything with an error message that said:Quote:No root file system is defined. Please correct this from the partitioning menu?This is what Gparted displays Quote:
/dev/sda1 ext3 /tmp/boot
/dev/sda2 unknown
/dev/sda3 ext3 /tmp/opsys
I would like to know if there is a way to do an unattended check on the root file system on my servers, *and* send emails in case of errors.
I know you can schedule a root file system fsck during boot time - but the root file system will be mounted read-only - so if fsck finds any problems - it can't email away a warning, or write the result to a file - or can it?
Essentially I would like my servers to do a self-check of the root file system periodically - and to email me if it fails. I just can't think of a way to get it done.
I just started setting up a linux box in the office...I have some experience with ssh commands but not setting up a linux system and stuff.The box is connected to our network but I have no clue how to make windows & osx talk with it. How can I go by doing that and also setting up an apache server to be able to connect through network. Right now I have apache/linux/mysql running it works when i go to localhost, but I would also like to let all the computers in office to access it. I would guess that will deal with virtual host which I know how to setup. I just need to setup an IP.
View 19 Replies View RelatedI have had this problem since yesterday, I've looked around at previous archives, but I can't seem to find anything that works. When I boot up, the screen gives me the following prompt:
Code:
Mount of root filesystem failed.
A maintenance shel will now be started.
CONTROL-D will terminate this shell and reboot the system.
Give root password for maintenance:
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So I have an external hard drive (wd passport) that I want to install ubuntu on. I created 100gb partition via diskutility (fat32) and it seems I can't install ubuntu on this partition.
View 3 Replies View RelatedI would like to start off by saying this: I am very new to Linux, and this is my first time installing it, therefor I am having some very newb-like issues. Please bear with me.I am currently at step five of the installation process of Ubuntu, and I clicked on the partition which I have set aside to install Ubuntu onto, but when I proceed by hitting forward, I get the following error message:"No root file system is defined.Please correct this from the partitioning menu."My question to the community is, how would I correct that? How do I turn my 20GB partition into the root file system?P.S. I searched the forum for this issue, and being that it sounds so simple, yet I found nothing about it being previously asked, I feel sort of dumb....
View 9 Replies View RelatedWhen I tried to install 10.10 'side by side' with 10.04 and OpenArtist for triple booting I get the messageQuote:No root file system is defined. Please correct this from the partitioning menu.I don't have the screen in front of me now but what5 does it want me to do and how do I do it?
View 9 Replies View RelatedI'm having a problem and it seems like partitions during the dual boot install.
Here's EXACTLY what I get...
Menu: Allocate drive space
Erase and use entire disk
X Specify partitions manually (advanced) [X denotes I chose this option]
I have 3 partitions on my gateway laptop...
[graphical bar across the top]
sda1 NTFS - 10g - weird partition w/recovery software or something from Vista
sda2 NTFS - 140g - Windows Vista
47g FREE SPACE [this is where I want ubuntu]
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I click "Install Now" and I get this error:
"No root file system is defined. Please correct this from the partitioning menu."
Information on the net seems very sparse or outdated for how to go about booting to a RAM disk. I need to be be able to boot a PC without a hard drive in it. I want to be able to PXE boot a PC and supply it with a RAM disk image that also contains the contents of the root file system (obviously stripped down enough to keep the file size small and the boot up time fast).What I have gathered so far is that I need to extract the contents of the initrd.img file, add files as necessary, and repackage the initrd.img file. What I get confused on is how to configure the kernel line parameters to tell it to boot to RAM and not the hard drive and how to go about modifying the init script in the initrd.img to not switch to the hard drive for the root file system. I can't find anything on the net that describes concrete steps on how to go about accomplishing all of this. I'm aware of the existence of Live CD's, but I need to be able to boot the PC without relying on a hard drive, CD, or any other external media. It needs to get all of its contents from the PXE boot server and boot to RAM only. I have the PXE boot side configured successfully. Also, putting the root file system on a NFS share is also out of the question.
View 8 Replies View RelatedI've been using *Unix systems for many years now, and I've always been led to believe that its best to partition certain dirs into separate FileSystems, off the main root FS.
For instance, /tmp /var /usr etc
Leaving as little as possible on the main / system.
Its so that you don't fill up the root system be accident, by some user putting in too bigger files in /tmp, for example.
I would presume that filling the / system would not be too good for Linux, as it would not be able to write logs and possibly other things that it needs to.
I believe that if root gets full, then there is something like a 5% amount saved for just 'root' to write to, so that it can do its stuff.
However, eventually, / will become full, and writes will fail.
On top of this, certain scripting tools, such as awk, use the /tmp/ system to store temp files in, and awk wont be able to write to /tmp/ as its full, so awk will fail.
However, I'm being advised that there is no need to put /tmp /var etc onto separate FSs, as there is no problem nowerdays with / filling up. So, /tmp /var /usr are all on the root FS.
I'm talking about large systems, with TBs of data (which is on a separate FS), and with a user populations of around 800-1000 users, and 24/7 system access.
I have a Rad Hat 7.0 old Linux system that crashed due to power failure. On reboot the system goes to Checking Root File System and does 92.5% check and fails.
Here are the error messages I get.
I don't know what to do at this point so I say yes and it goes in some wierd mode.
SO I ran fsck manually but I get an error PARALLEIZING FSCK.
I can't fix the corrupted stuff for the system to reboot. THIS IS VITAL.
When I try to install anything recently, I was getting errors about "No Space". I noticed that the root drive (/dev/sda1) has 100% usage which I'm not sure how that suddenly happened.
Code:
tom@HouseMedia:/$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 9.0G 9.0G 0 100% /
none 1.5G 552K 1.5G 1% /dev
none 1.5G 0 1.5G 0% /dev/shm
none 1.5G 300K 1.5G 1% /var/run
none 1.5G 0 1.5G 0% /var/lock
none 1.5G 0 1.5G 0% /lib/init/rw
/dev/sdb1 294G 182G 97G 66% /mediastorage
There was a powerloss recently and I wondered if some serious corruption had occurred. Since I'm checking the root drive, I had fsck run after a restart:
Code:
sudo shutdown -F -r now
FSCK went to work, briefly, and the logs (/var/logs/checkfs and /var/logs/checkroot) remain empty. Speaking of log files, I had a look at all of them and they take up a mere 32MB, so that's not the issue...
Code:
tom@HouseMedia:/var/log$ ls -h -l
total 32M
drwxr-x--- 2 root adm 4.0K 2011-06-05 06:39 apache2
drwxr-xr-x 2 root root 4.0K 2011-01-20 10:43 apparmor
drwxr-xr-x 2 root root 4.0K 2011-06-01 06:37 apt
-rw-r--r-- 1 root root 0 2011-03-01 06:43 aptitude
-rw-r--r-- 1 root root 851 2011-02-08 10:08 aptitude.1.gz
-rw-r----- 1 syslog adm................
Using Code:
du -h
I know that:
/var uses 1.2 GB
/root uses 100 K
/usr uses 1.4 GB
/tmp is empty
/home has 35 MB
Have already ran apt-get clean. How can I figure out what is taking up so much room? How can I go about figuring out what is huge and is safe to remove?
This is what I have given as bootargs... Kernel is working fine with filesystem if booted from pendrive /dev/sda1..But as I want to make that work from NAND, where already uboot and uImage are located...I used nand_erase and ubiformat to write ubi image on NAND.But after applying this, on uboot
setenv console 'console=ttyS0,115200 mtdparts=nand_mtd:0x100000@0x000000(uboot),0x400000@0x100000(uImage),0x1fb00000@0x500000(rootfs)'
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trying to modify my ubuntu 2.6.27 root file system so that it can use a android kernel. I have built the android kernel myself and it boots up. Now for the RFS to work it needs the android libraries. Now I have the Android libraries-I extracted these from the Android 2.6.27- but how do I merge these with MY root file system
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