Ubuntu :: Mount Ext3 Raid1 Drive
Aug 10, 2011
I have bought a ICYBOX IB-NAS4220-B a while ago and kept getting issues with it (going down and not restarting, very slow etc). 2 weeks ago one more issue arose and I couldn't restart or reconnect to the box so decided to take the disks out and recover my data to a 5BIG Lacie. The IcyBox uses a software RAID1 and format drives in EXT3. Being a Linux system I thought I could easily recover data from an Ubuntu box so installed the latest version as CD boot wouldn't give me satisfactory results. I am now stuck with both 1TB drive plugged into my Ubuntu machine and can't seem to be able to mount the drives.
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Nov 25, 2009
Running Debian Squeeze, I used gparted to wipe the fat partition on a 8GB USB thumbdrive, and repartitioned it with ext3. Everything goes fine, and gparted and fdisk -l both show the correct partition, but I can't seem to mount it, and automount in gnome fails as well.code...
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May 15, 2010
With a 1Tb USB drive plugged in, we'll call it "TheDrive", I boot my machine and "TheDrive" is mounted automatically. The icon is on the desk-top. "TheDrive" mounts to /media/TheDrive. Everything is fine. But, I would like to automatically mount the drive in my file tree at the location /mnt/TheDrive. I would not like to have the drive automatically mounted to /media/ and appear on the desktop. I know that this requires the use of fstab; but, I do not know what to add to this file.
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Jun 6, 2010
I created a encrypted volume on top of software raid1. These are my steps:
1. Create logical partition on sda
2. Create logical partition on sdb (same size)
3. Change type to partition to 'fd' for both partitions
4. Check that the both partitions are same size and type
fdisk -l /dev/sda && fdisk -l /dev/sdb
5. partprobe
6. Make sure there are no remains from previous RAID installations on /dev/sdb by running:
mdadm --zero-superblock /dev/sda6
mdadm --zero-superblock /dev/sdb6
7. mdadm --create /dev/md4 --level=1 --raid-disks=2 /dev/sda6 /dev/sdb6
8. watch cat /proc/mdstat
9. update mdadm.conf
mdadm --examine --scan | grep mdx >> /etc/mdadm.conf
10. Load twofish module
[root@localhost ~]# modprobe twofish
11. # cryptsetup -y -c twofish-cbc-essiv:sha256 create ftdata /dev/md4
Enter passphrase:
Verify passphrase:
12. mkfs.ext3 -b 4096 -R stride=8 /dev/mapper/ftdata
13. mkdir /ftdata
14. Mount the encrypted volume: mount -O noatime /dev/mapper/ftdata /ftdata
It mounts successfully this first time. When I cd /ftdata, I can see the lost+found dir
Now, I unmount the volume
cd ~
Code:
umount /ftdata
cryptsetup remove ftdata
And now, if I try to setup my encrypted volume like this:
Code:
[root@localhost ~]# cryptsetup create ftdata /dev/md4
Enter passphrase:
mount -O noatime /dev/mapper/ftdata /ftdata
I get this error:
mount: you must specify the filesystem type
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Jun 6, 2010
I created a encrypted volume on top of software raid1. These are my steps:
1. Create logical partition on sda
2. Create logical partition on sdb (same size)
3. Change type to partition to 'fd' for both partitions
4. Check that the both partitions are same size and type fdisk -l /dev/sda && fdisk -l /dev/sdb
5. partprobe
6. Make sure there are no remains from previous RAID installations on /dev/sdb by running: mdadm --zero-superblock /dev/sda6 mdadm --zero-superblock /dev/sdb6
7. mdadm --create /dev/md4 --level=1 --raid-disks=2 /dev/sda6 /dev/sdb6
8. watch cat /proc/mdstat
9. update mdadm.conf mdadm --examine --scan | grep mdx >> /etc/mdadm.conf
10. Load twofish module [root@localhost ~]# modprobe twofish
11. # cryptsetup -y -c twofish-cbc-essiv:sha256 create ftdata /dev/md4 Enter passphrase: Verify passphrase:
12. mkfs.ext3 -b 4096 -R stride=8 /dev/mapper/ftdata
13. mkdir /ftdata
14. Mount the encrypted volume:
mount -O noatime /dev/mapper/ftdata /ftdata
It mounts successfully this first time. When I cd /ftdata, I can see the lost+found dir
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So why is it that I can't mount my encrypted volume after the first time? I am giving the correct password when it asks to.
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Feb 15, 2010
I tried setting up my own partition table which apparently didn't go well.I have 1 compactflash-disk for linux and 2 hard drives for data which are set up for RAID1. But the RAID-drives doesn't get mounted.This is my first RAID-setup
Code:
me@server:~$ df -h
Filesystem Size Used Avail Use% Mounted on
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Dec 29, 2010
I have just upgraded to Fedora 14 from an older version. I now have problems mounting my RAID1 array, which was operating correctly until now. This is a software RAID which was initially built under Fedora 10.The array is md0, and is made of 2 SATA drives (sdc and sdd) which have only one partition. The underlying filesystem is NTFS. The array is assembled correctly and active, as reported by /proc/mdstat and mdadm -D.When I try to mount the array, I get this:
Code:
[root@Goofy ~]# mount /dev/md0 /mnt/raid
mount: you must specify the filesystem type
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Jun 11, 2011
I'm new to Centos and very new to RAID/hd setup. I have a old HP proliant G3 ML150. I have no drivers cd or other, only the server. I have created a RAID1 array (named SYSTEM) with 2 HD of 250GB from the controller and have installed Centos 5.2 (updated after to 5.6). The installation is ok. Now I have added 2 HD of 1TB each and have created another RAID1 array (named DATI) from the controller. This RAID is to store data files. (And next I have to add another RAID1 for backup, but this is to do next week). how can I format and add it to Centos so I can use it?
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Dec 4, 2009
i want copy files in ftfs drive to ext3 drive. how am I do this?
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Mar 26, 2010
I have an external drive which is formatted for Linux (ext3) and want to re-format it to use it under windows. I have no data on the disk that I need, just want to re-format so I can use it for a backup for my windows7 laptop.
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Apr 27, 2010
I have a Western Digital World edition II network HDD, but somehow I have lost the Media folder..I have also read http://foremost.sourceforge.net/ is a very great recovery tool in ubuntu, is this true?So I have pull out the HD from the western digital NAS case and put it into a USB enclosure.Anyone can teach me how to mount this driver?To look for device boot namesudo fdisk -lBut how to look for the mount_point_dir?sudo mount /dev/sdc4 [mount_point_dir] -t ext3
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May 17, 2010
I am self teaching everything I need to develop a home-based web server (linux/apache/php/mysql/html/css/etc...) It's quite an undertaking, but not beyond my abilities. I thought this question could have gone in either the linux - software or linux - hardware forum, and certainly not in the n00b section, but I figured it's best be put in the linux - server forum, since that's what this is related to.
I have been looking into the software and hardware RAID solutions for linux because I wanted to make sure that the boot drive of the web server I set up is mirrored with transparent disk fail/replace/recovery. I mean, setting up a boot drive for RAID1 sounded perfectly logical to me, and why wouldn't it to anybody else? So, since I knew RAID controllers were expensive, I looked into the native software RAID support in linux. My findings have revealed an issue with software raiding a boot drive in not only linux but windows as well. Apparently, if the primary drive fails (not the mirror), you have no other option but to power down the system to properly replace the failed disk, reboot, play some config crap, resync the drive, do some more config crap, reboot again, and -hopefully- it'll be ok. Well, that procedure is simply out of the question since the idea behind RAID is to transparently proceed as if nothing happened.
I'd like to know if it's even possible to RAID1 the boot drive for transparent and automatic fail/hot-swap/recover WITHOUT rebooting the system and with no intervention on my part other then replacing the drive whether it be a software raid or hardware raid solution. Eventually, what I'd like to do for a drive configuration is have 3 RAID volumes on the server configured like so:
RAID volume 1 = boot drive w/ webserver installed
RAID volume 2 = database files
RAID volume 3 = flatfile storage
Each raid volume will be a RAID1 of a 1TB drive (total = 6 x 1TB drives)
I've seen a lot of people having failure issues with the software RAID in these forums. Is this more common than not? I'm certainly not opposed to buying a hardware RAID solution as long as they're reliable and provide transparent/automatic recovery. So what's the best way to RAID1 the boot drive for transparent/automatic failover?
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Dec 13, 2010
I have trawled through an extensive number of post on quite a few forums without even a step forward with this.
I have a fedora 13_x64 system with software raid1 for /boot and / (md0 and md1 respectively), swap is not raided.
I was doing an yum update through the software updater in gnome and the system froze.
I had to press reset to get any response from the machine.
Since then I have been getting the kernel panic above just after grub starts fedora.
I tried the previous kernel from the previous update and it has the same error.
At the worst I am prepared to load OS again but there is still some info and configs that I would like to access from the raid partitions before I go ahead.
Is there any way to access these partitions through a live CD or rescue environment?
Is there a method to bring this install back to life? or am I looking at a reinstall?
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Feb 4, 2011
I have a ubuntu sever with a raid1 data drive formated in native linux ext3. I have searched for answers to my question but most likely I'm not asking it correctly. I want to use the data drive to store backups of files from various ubuntu and windows machines. Do I need to reformat the drive as ntfs to enable windows use or can it remain as ext3? For that matter can I reformat as ext4 as a soultion? Again, I wish to use the data drive as a backup storage.
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Jul 2, 2010
The motherboard currently installed on my PC has a RAID Utility (Ctrl+I) at the startup that allow creating RAID1. But I already have a system installed with CentOS 5.4. In order to protect my data, I need RAID1. Can I add another Hard Drive now and have the data mirrored and synced onto both hard drives as if it was in RAID1 right from the beginning?
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Dec 13, 2010
I have trawled through an extensive number of post on quite a few forums without even a step forward with this.
I have a fedora 13_x64 system with software raid1 for /boot and / (md0 and md1 respectively) , swap is not raided.
I was doing an yum update through the software updater in gnome and the system froze.
I had to press reset to get any response from the machine.
Since then I have been getting the kernel panic above just after grub starts fedora.
I tried the previous kernel from the previous update and it has the same error.
At the worst I am prepared to load OS again but there is still some info and configs that I would like to access from the raid partitions before I go ahead. Is there any way to access these partitions through a live CD or rescue environment?
Is there a method to bring this install back to life? or am I looking at a reinstall?
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Dec 12, 2010
This question is about windows xp but since I rarely use it and dont care about to sign up for some xp related forums
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Jul 31, 2011
I have an existing Fedora 15 system installed from scratch.I've ordered a harddrive identical to my SDA and want to add it to my existing system as a RAID1 setup.I've googled around and cannot find recent clear instructions how to accomplish this. I don't want to reinstall everything from scratch. It should be possible to create the RAID1 using the existing data disk and then mirror everything up?
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May 14, 2011
I installed a distro based on CentOS 5.5 (FreePBX distro FYI). It used an automated kickstart script to create an md RAID1 array of all the hard drives connected to the machine. Well, I installed from a thumb drive, which the script in interpreted as a hard drive and thus included in the array. So, I ended up with three md arrays (boot, swap, data) that included the thumb drive. Even better, it used the thumb drive for grub boot so I couldn't start up without it. I was able to mark the USB drive as 'failed' and remove from each array, and even change grub around to boot without the usb drive, but now each of the arrays is marked as degraded:
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Feb 7, 2010
My software RAID setup is as follows.
/dev/md0 (made from sda1 and sdb1) RAID1 /boot partition
/dev/md1 (made from sda2, sdb2, and sdc2) RAID5 / partition
Earlier on I had some trouble with my sda drive, it dropped itself from both arrays, screwing up the mirroring of my two raid partitions participating in the /boot partition. I eventually got everything sorted out and back in sync. (I also have grub installed to MBR on both sda and sdb). Things are working fine regarding that, but since then I've had this issue:
During boot up, I'll get an error message that it could not mount my /boot partition (when fstab is set to either /dev/md0 or the UUID). It claims c9ab814c-47ea-492d-a3be-1eaa88d53477 does not exist!
My fstab:
Code:
[mark@mark-box ~]$ cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Wed Jan 20 16:34:41 2010
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As far as I know, it isn't neccessary for /boot to be mounted always, correct? Although, as I understand, I need to have it mounted whenever making kernel changes correct?
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Apr 7, 2010
I'm fairly new to Ubuntu and I'm running Karmic Koala. I just reformatted an NTFS partition to Ext3, as I no longer need to access is from my windows installation. Now I'm unable to mount it though, and I get the message: Error mounting: mount exited with exit code 1: helper failed with: mount: only root can mount /dev/sda6 on /media/DATA2 (DATA2 being the name of the previous NTFS partition. Now the label is linuxdata)
When I try to mount it using sudo in terminal I get the following message if I use the label DATA2:
NTFS signature is missing.
Failed to mount '/dev/sda6': Ogiltigt argument
The device '/dev/sda6' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
And if I use the label linuxdata: mount: can't find /media/linuxdata in /etc/fstab or /etc/mtab I've tried to search for help, but been unable to find an explanation.
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Jan 20, 2010
I just made a new storage partition and formatted it as Ext3. Now, this particular partition is shown and can be read at the terminal "fdisk -l". However, unlike in my Mint 7 partition, it does not show in my Fedora 10.
Code: [jun@localhost ~]$ sudo fdisk -l
[sudo] password for jun:
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xc5e3f820
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This partition can also shows be seen in gparted in Fedora. However, even in the "Places" tab, it does not show.
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Jul 28, 2015
Recently tried to make RAID1 on MBR partitions scheme on Debian Jessie - debian-8.1.0-amd64-DVD-1. The issue - I have unable to boot from second drive after grub-install /dev/sdb by any ways. RAID1 itself for / swap and home is fully functional. Decided to try the same thing on GPT, same story. How to boot from second drive on most recent Debian Branches?
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Aug 15, 2010
I have installed a 2TB drive in my dual PIII 866 with 750MB ram. The drive is properly installed and I have configured the drive with 1 partition in RAID1. The array loads fine, but when I add the entry to mount the /dev/md2 /data/repository the following error occurs The filesystem size according to the superblock is 488378000 blocks The physical size of the device is 488377986 blocks Either the superblock or partition table is likely corrupt I have run fsck manually with no errors reported. I have removed the partition and rebuilt the array. The array assembles properly and I can manually mount the /dev/md2, but as soon as I add the entry to the fstab I get dropped to a shell after a reboot. Not sure where to go now?
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Mar 1, 2010
I have a external usb 20Gb hdd. It was a ntfs partition but i could'nt mount it, so I try with a ext3 partition, because with centos it's mount automaticly, but... for some reason that I don't know, even with a ext3 partition my centos don't detect my external usb hdd, howerver I already try to mount it on ubuntu to see if it work, even on windows with some programm to recognize ext3, it was alright, but why can't i mount it on my centos?
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Dec 29, 2010
I have 2 WD20EARS hard drives on the way (2 TB green WD disks with 4k sectors) and I'll be installing Centos 5.5 in RAID1 on them (2 partitions, one 16 GB / at the beginning and the rest in its own partition). I read the following thread: [URL]
and it seems that I might be having problems with the 4k sectors (Advanced Drive Format in WD lingo). I'm confused as to what exactly to do. I was thinking of downloading Fedora 14 Live CD and partitioning there and then switching to Centos 5.5 to install. Will that work? Seems I want the md 0.9 metadata because it doesn't have the space limit for me (2 TB) and it's stored at the end of the partition so it avoids alignment issues. Will I be able to make that happen with Fedora 14?
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Feb 19, 2010
I attach a picture of my future disk partitioning,as I thought it should be. As you can see, the first two partitions are 2 different windows installations. At the end of the disk, I have specified a partition as ext3 104855 MB (sda9) and swap 8192 MB (sda. What should the the mount point of sda9 be? Should I specify a partition for /, /boot, /home, /tmp, ...etc? Or it is ok to make mount point '/'?
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Jul 15, 2009
I'm trying to mount a second hard drive as a ext3 (rw_acl,user_xattr). I type the ff.:
# mkfs.ext3 -c /dev/sdb1(it seems to create a file system from this 2nd HD)
then type:
# mount -v /dev/sdb1 / type ext3 (it seems to mount it)
But when I check the ext3 systems with typing:
# mount -t ext3 (to check the list of ext3 devices, it gives me this)
/dev/sda1 on / type ext3 (rw,acl,user_xattr)
/dev/sda2 on /home type ext3 (rw,acl,user_xattr)
/dev/sdb1 on / type ext3 (rw)
How can I make /dev/sdb1 on type ext3 as (rw,acl,user_xattr) as the others?
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Jun 22, 2010
how to mount ext3 file system with direct i/o.on AIX has dio mount option to use direct i/o and solaris too.
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Jun 27, 2009
I have a used but good harddrive which I'd like to use as a replacement for a removed harddrive in existing raid1 array. mdadm --detail /dev/md00 0 0 -1 removed1 8 17 1 active sync /dev/sdb1I thought I needed to mark the removed drive as failed but I cannot get mdadm set it to "failed". I issue mdadm --manage /dev/md0 --fail /dev/sda1But mdadm response is:mdadm: hot remove failed for /dev/sda1: no such device or addressI thought I must mark the failed drive as "failed" to prevent raid1 from trying to mirror in wrong direction when I install my used-but-good disk. I want to reformat the good used drive first right? I believe I must prevent raid array from automatically try to mirror in the wrong direction.
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