Software :: Moving Root Filesystem To Another Disk
May 19, 2009
I've setup a filesystem on a RAID 0+1 and am looking at moving root filesystem from a single disk to the new one. I could not install CentOS on mirrored filesystem as the RAID card did not have a pre-built driver for CentOS 5.3, so I had to compile the driver after installing the system.What I'm going to do now is:
1. Mount the new mirrored filesystem under /root1
2. use find | cpio to copy everything from the existing / to /root1
3. use grub to create a boot record on /root1
4. edit /root1/etc/fstab to point / to the new disk
5. reboot the system and keep my fingers crossed
Is this the way to go? Am I missing anything?
View 3 Replies
ADVERTISEMENT
May 19, 2009
Ive setup a filesystem on a RAID 0+1 and am looking at moving root filesystem from a single disk to the new one. I could not install CentOS on mirrored filesystem as the RAID card did not have a pre-built driver for CentOS 5.3, so I had to compile the driver after installing the system.
What Im going to do now is:
1.Mount the new mirrored filesystem under /root1
2.use find | cpio to copy everything from the existing / to /root1
3.use grub to create a boot record on /root1
4.edit /root1/etc/fstab to point / to the new disk
5. reboot the system and keep my fingers crossed
Is this the way to go? Am I missing anything?
View 6 Replies
View Related
Mar 4, 2010
My root filesystems flooded so I'm trying to move it to another (bigger) partition but I'm not sure of the best method. I just tried to use "dd if=/dev/sda1 of=/dev/sda6" to copy it but all that did was give me a brand new partition with no freespace available presumably because the filesystem is smaller than the partition. Is it possible to make the filesystem bigger?
View 8 Replies
View Related
Apr 25, 2010
When I logged in today I got this message:
The volume "filesystem root" has only 474.8 MB disk space remaining
What does this mean??
View 5 Replies
View Related
Mar 27, 2010
When I try to boot to OpenSUSE I get the following error during boot-up: unknown filesystem type 'reiserfs' could not mount root filesystem - exiting to /bin/sh$
This only started happening quite recently - before this I could boot to Linux quite happily.
View 6 Replies
View Related
Jan 25, 2011
I'm running out of space in wubi. Online wubi help didn't help much since they suggest creating extra virtual disk space(similar to having a diffrent partition i guess) .None of them speak about increasing the size of /root disk space(or root.disk). I store all files in space shared with windows or external disk and use ubuntu only to install and use softwares and browsing. So how do increase the available space for installing more softwares?
View 3 Replies
View Related
Mar 4, 2010
I have limited experience in terminal, but let me first explain what I am trying to do to see if there is some easier way to do it. Basically I want to change the skin in aMSN. I downloaded the new skin but am unable to unzip or move it without /root permissions. I don't know how to acquire this without being in terminal. So I figured there had to be some way to go into the terminal and use it to move the unzipped folder from the desktop to the aMSN skins folder.
View 3 Replies
View Related
Dec 21, 2010
My linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:
# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs
[code]...
View 3 Replies
View Related
Aug 19, 2010
What I'm doing is attempting to create a minimalized CentOS which only installs the base components.
I decided that I'd install everything I need, then I did a ..
rpm -qa > installed-packages
I think used this new file to move all the RPMs that were used during the installation from ~/CentOS/disk/CentOS/ to ~/CentOS/graveyard
[root@localhost CentOS]# cat installed-rpms-no-vers | while read file; do mv disk/CentOS/${file}* ~/CentOS/graveyard/ ;done
mv: cannot stat `disk/CentOS/iptables-ipv6*': No such file or directory
mv: cannot stat `disk/CentOS/nss-tools*': No such file or directory
[Code]....
View 5 Replies
View Related
Mar 25, 2011
Currently, my disk layout is as follows:
Code:
/boot /dev/sda1
/ /dev/sda5
windows /dev/sda3
/home /dev/sda4
/dev/sda2 is currently an extended partition.
I purchased a small SSD, and I'd like to move most of the root partition and my home directory over to it. Assuming the new drive is /dev/sdb, my desired layout is this:
Code:
/boot /dev/sda1
windows /dev/sda3
/data /dev/sda4
[code].....
What's the best way to go about this with minimal downtime? Second, what configuration files would I need to update?
View 2 Replies
View Related
Apr 3, 2009
Especially /var because I am running a MYSQL server on this box. I want to know if there is a safe procedure to follow to move these partitions from the current sda2 and sda3 that they are now to sdb2 and sbd3 because this is a much bigger disk. I don't want to break MYSQL and I don't want to be down for a long period. I have heard of some people suggesting a sym link to a /newvar and /newuser on sdb but I have also read this will not work when moving to a different physical drive.
View 3 Replies
View Related
Jan 17, 2010
I have a IBM T42 (using it now to write this) and a newer Lenovo T500 (with a fresh install of Ubuntu 9.10 on it). I want to take all of my programs and config of those programs, plus all my /home directory information/files/hidden files all over onto the new machine. There may be other stuff I need to take over to, and don't know enough about to comment here.
But basically I want my new system to look and work like my old system, with all the same programs and user data, all configured in the same way. Is there a way to do this over the network or another way? I can't even get the two systems to see each other over the network, even though Folder Sharing is enabled and (I think) all the right components are installed. I even checked to see if my user had permission to share files on both machines, and I do.
View 7 Replies
View Related
May 11, 2011
I want to move my / partition to the end of my drive (sda). To do this with gparted, I have to unmount it, but I'm not comfortable with the idea of unmounting root partition... Should I do it from a live cd? More important : is the operation safe?
View 5 Replies
View Related
May 15, 2010
Because I am using one of the new WD disks I am trying to aling my root partition with the real sectors, as described here:[URL]31So I copied all files to a temp location, deleted my partition (/dev/sda3), recreated it a few cylinders later (same name) and copied the files to the newly created partition. But now when I try to boot, I get my old grub menu but after selecting my kernel version it hangs
View 15 Replies
View Related
May 29, 2011
How would you go about moving one users home folder to a different partition, while maintaining other users home folder on the current one. Will simply running "usermod -dm /path/to/new/home username" on one of the users do the trick.
I want to run one of the users of an SSD, while the other runs of a bigger SATA disk.
View 9 Replies
View Related
Oct 27, 2009
If you want a full run down as to WHY I want to do this, read here: webhostingtalk.com/showthread.php?t=899909Basically, my ISP could not get my server running stable on a simple raid 1 (or raid 5) so what it came down to was having them install my system on a single disk. I don't exactly like this, main reason being, if the system (or HDD) crashes, I'll end up with another several hours of down time..
View 1 Replies
View Related
Mar 25, 2010
I am having problem with the root disk / fill up. So now that i have the disk information provided from SAN team Id 0:3, how would i do to add this device to / to increase space on Redhat Enterprise server 4?
View 1 Replies
View Related
Oct 17, 2010
How can I move a directory to the root of a drive via command line?
In MS-DOS it would be 'move C:/GAMES/QUAKE C:/'
What is the equivilent in Linux?
View 8 Replies
View Related
Jan 1, 2010
Currently, my disk layout is: 20GB(windows-ntfs) / 250GB data-ext4 / 20GB ubuntu-ext4 / 4gb swap
Since I no longer use windows, I want to move ubuntu to the first place.
What do I need to change in configuration files, grub and anywhere else?
Shoudl I keep swap where it is or move it, too?
View 9 Replies
View Related
Mar 12, 2011
I've read many of the postings on ICH10R and grub but none seem to give me the info I need. Here's the situation: I've got an existing server on which I was running my RAID1 pair boot/root drive on an LSI based RAID chip; however there are system design issues I won't bore you with that mean I need to shift this RAID pair to the fakeraid (which happens to most reliably come up sda, etc). So far I've been able to configure the fakeraid pair as 'Adaptec' and build the RAID1 mirror with new drives; it shows up just fine in the BIOS where I want it.
Using a pre-prepared 'rescue' disk with lots of space, I dd'd the partitions from the old RAID device; then I rewired things, rebooted, fired up dmraid -ay and got the /dev/mapper/ddf1_SYS device. Using cfdisk, I set up three extended partitions to match the ones on the old RAID; mounted them; loopback mounted the images of the old partitions; then used rsync -aHAX to dup the system and home to the new RAID1 partitions. I then edited the /etc/fstab to change the UUID's; likewise the grub/menu.list (This is an older system that does not have the horror that is grub2 installed) I've taken a look at the existing initrd and believe it is all set up to deal with dmraid at boot. So that leaves only the grub install. Paranoid that I am, I tried to deal with this:
dmraid -ay
mount /dev/mapper/ddf1_SYS5 /newsys
cd /newsys
[code]....
and I get messages about 'does not have any corresponding BIOS drive'. I tried editing grub/device.conf, tried --recheck and any thing else I could think of, to no avail. I have not tried dd'ing an mbr to sector 0 yet as I am not really sure whether that will kill info set up by the fakeraid in the BIOS. I might also add that the two constituent drives show up as /dev/sda and /dev/sdb and trying to use either of those directly results in the same error messages from grub. Obviously this sort of thing is in the category of 'kids don't try this at home', but I have more than once manually put a unix disk together one file at a time, so much of the magic is not new to me.
View 2 Replies
View Related
Dec 18, 2010
I've added a second drive to a system and I need to extend the lvm and the filesystem to the second disk. Is there a way to do this online with centos 5.5? I specifically need extending the actual ext3 filesystem which seems to be the trick part.
View 8 Replies
View Related
Aug 13, 2009
I am trying to build a root file system for using it with the user mode linux on a fc 11 system.
View 5 Replies
View Related
Mar 19, 2010
I have a custom Ubuntu distro that run both from a CD and PXE boot. The problem I have is that I need to boot in an environment that has to be routed through a router that can't forward NFS (the protocol doesn't use a standard port) I found that the Ubuntu based Clonezilla Live CD has a option like "fetch tftp://server/folder/filesystem.squashfs" I can borrow the kernel and initrd and it works, but how do I add this feature myself? Is there a package I need to install or a initrd option I need to add?
View 1 Replies
View Related
Jun 18, 2010
Lately however my root filesystem is getting filled up every night-- I come in in the morning and have notices that I have 0 bytes remaining. There's tons of room on the disk, but the root is full. Here's what it looks like with a df -h:
[Code]....
View 4 Replies
View Related
Mar 1, 2010
ive been recently experiencing some problems with my ubuntu studio 9.10 setup, with the filesystem failing to mount. after deciding to try a new hard drive and cable, as well as clean install ubuntu, fedora and now mint, im still finding no filesystem.im using a live cd created for mint (like it ). having clicked install to hard drive, all is well until the partition manager, where all the boxes are greyed out. clicking forward produces a box saying "no root filesystem defined". i see there are a few on here from a few years back and having read through them, cannot find a fix for myself.
View 9 Replies
View Related
Jan 10, 2011
Using Ubuntu 10.10, 64-bit, installing after LiveCD testing.sda3 can't really be erased due to its contents, something I can't exactly get back or transfer.
View 2 Replies
View Related
May 29, 2011
why my df -h command is telling me I'm missing 18G?
***
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_aikifedora-lv_home
357G 272M 339G 1% /home
***
This was 'df -h /home' straight after a fresh install. It says it's 357G in size, but even though 272M is in use, it's telling me I have only 339G left available. Where did that extra 18G go?
View 2 Replies
View Related
Jan 9, 2011
I'd like to make the ls -laR /media/myfs on Linux as fast as possible. I'll have 1 million files on the filesystem, 2TB of total file size, and some directories containing as much as 10000 files. Which filesystem should I use and how should I configure it?As far as I understand, the reason why ls -laR is slow because it has to stat(2) each inode (i.e. 1 million stat(2)s), and since inodes are distributed randomly on the disk, each stat(2) needs one disk seek.Here are some solutions I had in mind, none of which I am satisfied with:Create the filesystem on an SSD, because the seek operations on SSDs are fast. This wouldn't work, because a 2TB SSD doesn't exist, or it's prohibitively expensive.
Create a filesystem which spans on two block devices: an SSD and a disk; the disk contains file data, and the SSD contains all the metadata (including directory entries, inodes and POSIX extended attributes). Is there a filesystem which supports this? Would it survive a system crash (power outage)?Use find /media/myfs on ext2, ext3 or ext4, instead of ls -laR /media/myfs, because the former can the advantage of the d_type field (see in the getdents(2) man page), so it doesn't have to stat. Unfortunately, this doesn't meet my requirements, because I need all file sizes as well, which find /media/myfs doesn't print.Use a filesystem, such as VFAT, which stores inodes in the directory entries. I'd love this one, but VFAT is not reliable and flexible enough for me, and I don't know of any other filesystem which does that. Do you? Of course, storing inodes in the directory entries wouldn't work for files with a link count more than 1, but that's not a problem since I have only a few dozen such files in my use case.
Adjust some settings in /proc or sysctl so that inodes are locked to system memory forever. This would not speed up the first ls -laR /media/myfs, but it would make all subsequent invocations amazingly fast. How can I do this? I don't like this idea, because it doesn't speed up the first invocation, which currently takes 30 minutes. Also I'd like to lock the POSIX extended attributes in memory as well. What do I have to do for that?Use a filesystem which has an online defragmentation tool, which can be instructed to relocate inodes to the the beginning of the block device. Once the relocation is done, I can run dd if=/dev/sdb of=/dev/null bs=1M count=256 to get the beginning of the block device fetched to the kernel in-memory cache without seeking, and then the stat(2) operations would be fast, because they read from the cache. Is there a way to lock those inodes and/or blocks into memory once they have been read? Which filesystem has such a defragmentation tool?
View 2 Replies
View Related
Sep 15, 2010
I have switched recently from Ubuntu to Debian and overall I am enjoying it. However I was just wondering, does Debian, like Ubuntu check the filesystem at boot periodically or if damaged, because it is doing neither in my case? How do I get it to do this
View 6 Replies
View Related
Sep 10, 2009
2 days ago I had installed Fedora 9 on an old machine. The installation was from a Flash USB, and was OK and the kernel on thar installation was 2.6.25-14.fc9.i686.
After the installation I updated the system, and all looks to be ok, and the system was set with the kernel 2.6.27.25-78.2.56.fc9.i686.
But when I start the system with the latest kernel itś get blockd on "remounting root filesystem in read-write mode" step, but not with the original kernel witch start correctly.
View 2 Replies
View Related
