Recreate Dev Sdb

This article describes how to fix some common problems that cause an MSDOS partition table (also known as Master Boot Record - MBR) to be invalid. 1 GB Heads. sudo mount /dev/sdb1 /mount/path. 66GB /dev/sda SAS HDD No Read Ahead Write Back 64 KB Disabled Virtual Disk 1 Ready Execute RAID-5 2,695. `dmraid -r` returns only the top. Hi Guy Excellent work. Droped it on the ground and got blinking red light. My next test was to grow the size of /dev/sdb to >2TB to ensure the whole disk is 'seen' by Centos. This is a short tutorial that explains how to create an LVM in Linux. Almost all HOWTOs for re-adding a drive to a RAID 1 I found on the internet told me to manually recreate the partition table on the new drive. Creating and deleting new partitions in linux a very normal practice. # parted /dev/sda mklabel gpt # parted -s -a optimal /dev/sda mkpart 1boot fat16 2048s 528383s # parted -s -a optimal /dev/sda mkpart 1swap linux-swap 528384s 17305599s # parted -s -a optimal /dev/sda mkpart 1root 17305600s 100% # parted /dev/sda set 1 boot on # mkfs. Yes, permanent labellings works where you can use them, but if a program is hardcoded to use eg. Then I used fdisk to delete the 3rd partition, and recreate it, larger: (be careful, fdisk wanted to use the area at the front of the partitions) eject /dev/sdb. For example:. You will have to remove /dev/sda2 (extented partition) to resize /dev/sda1. 595949] scsi 2:0:0:0: Direct-Access ATA. In this post we are taking a look at some commands that can be used to check up the partitions on your system. 2-k9), and I followed the procedure: first #2 to format the Flash, then #3 to copy the cookie, then #5 to copy de. 2 User's Guides. The sbd daemon, combined with the external/sbd STONITH agent, provides a way to enable STONITH and fencing in clusters without external power switches, but with shared storage. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I increased the disk size from 20GB-->>30GB. How to Create New File Systems/Partitions in the Terminal on Linux By Derrik Diener – Posted on Nov 1, 2015 Oct 29, 2015 in Linux Partition editing or making new file systems on Linux usually means one thing: installing the Gnome Parted partition editor (GParted). ****UPDATE DECEMBER 2017 A new version of the script is posted below (v3). This would cause unbootable Windows. Pacemaker configuration to build a small cluster with a virtual IP address and an Oracle 12cR2 database with its listener. Now you have to recreate the partition layout with fdisk or cfdisk. local edit, that was a workaround provided to the customer by Laurence, so that would not negate Jon's suspicion if I am understanding correctly. devices /dev/sdc and /dev/sde both refer to the same device/LUN on shared storage, as do /dev/sdb and /dev/sdd and so on. How To Fix: External Disk Drive Suddenly Became RAW. This is very important because partitioning tools, fdisk included, may round down slightly the provided value to cylinder boundary. This solution enables us to decouple the underlying virtual machines from the business value provided by our application and allows us to take advantage of immutable infrastructure. Replace the failed drive. XFS is a high-performance file system which was designed by SGI for their IRIX platform. cgi?id=956359 Bug ID: 956359 Summary: Error sending ATA command IDENTIFY DEVICE to /dev/sdb: Unexpected sense data returned. Thread starter With vgcfgrestore and data on /etc/lvm/archive I was able to recreate the sector size=512 Disk /dev/sdb - 2199 GB / 2048 GiB - CHS. 7 GB, 214758850560 bytes <--- ISCSI Storage 255 heads, 63 sectors/track, 26109 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System Setup Mulipathing: Setup multipath of (/dev/sdb) through eth6 and eth7 interfaces. This article explains 9 practical parted command examples. CentOS6 initrd says “already mounted or /sysroot busy” January 30, 2014 January 27, 2017 by If you are booting a CentOS 6 system after having migrated its root filesystem to a new volume, you might get the following errors if /proc or /sys is missing:. How To Create a Partition Using “parted” Command. 10 on two hard drives: If the system works as expected. I don't know exactly which operations gummed up /dev/sdb, which would be good to know. dd if =kali-linux- 2016. In my example, I first add the device /dev/sdb to my volume group, next I increase the logical volume to 4. I would like to know if there is a way to rebuild it with the current mount options, since I did. Disk /dev/sdb: 1. ) Take particularly good note of the partition data for any additional partitions you created on your drive (begin sector, end sector, type code. fdisk is a text based utility. we can look at them in other blogs/ posts. /dev/hda5 Swap /dev/hda6 Linux 1 /dev/hda7 Linux 2 The first logical partition (/dev/hda5) is the swap partition, /dev/hda6 contains the first Linux system. After booting the iPod into disk mode, I connected the USB cable to the iPod and the PC. For example:. # fdisk /dev/sdb -l Disk /dev/sdb: 107. Yes, here it is: Disk /dev/sdb: 255 heads, 63 sectors, 486300 cylinders Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID 1 00 1 1 0 254 63 1023 63 3517442141 83 2 00 0 0 0 0 0 0 0 0 00 3 00 0 0 0 0 0 0 0 0 00 4 00 0 0 0 0 0 0 0 0 00 I have to assert that I really don't know what I'm doing with advanced partitioning stuff; fdisk is all I have really ever used until I discovered it wouldn't handle partitions in excess of 2TB. Note: This is a RHCSA 7 exam objective. I have been able to recreate the issue shown here, and I have the solution I am using a production rev C iMX7 SABRE board and the ga software release l4. In this example we are partitioning sdb with the exact same partitions as sda: sfdisk -d /dev/sda | sfdisk /dev/sdb. Linux Disk Partitioning (fdisk, parted) This article discusses the disc partitioning utilities available Linux, with specific reference to the information needed for the RHCSA EX200 and RHCE EX300 certification exams. # This gives root shell on local. Use "fdisk -l /dev/sda", "fdisk -l /dev/sdb", etc. How to make a bootable linux pendrive? How to create bootable linux stick under linux? Installed OS: Fedora 20. You can't move /dev/sda directly to VG as it is already mounted and moreover there are files in the filesystem. • Physical devices on the system all have special reference files located within the ‘/dev’ folder. To resolve this error, first check if it has fdisk partitions using fdisk command :. The following properties apply to a resync:. 6G 0 disk if you want to make sure a thumb drive is really /dev It's a good learning experience to recreate a partition table or try to get data. /dev/sda 1st SATA /dev/sdb 2nd SATA utilitieslocate lost file systems and recreate a partition table which includes entries for these recovered file systems. There are several positions in the script that have to be addapted accordingly if you have more or less drives or different identifiers (e. How to setup thin Provisioned Logical Volumes in CentOS 7 / RHEL 7 by Pradeep Kumar · Published July 15, 2016 · Updated August 3, 2017 LVM (Logical Volume Management) is a good way to use the disk space on the server more efficiently. So in this example, you would have /dev/md/home that would point to /dev/md127 and the preferred method of use would be to access the device via the /dev/md/home entry. Just clone the partitions from /dev/sda to /dev/sdb: sfdisk -d /dev/sda | sfdisk /dev/sdb. 4 Adding The New Hard Disk. We will destroy the partition table for /dev/sdb, by creating a new one in GParted. A common complication with USB camera devices is that they usually identify themselves as a disk with a single partition, in this case /dev/sdb with /dev/sdb1. My goal is to recreate imsm raid1 array from 2 new disks after 1 of the original 2 disks failed. x kernels, too. I also tried to "zeroing" the whole disks using dd (interestingly, mdadm still claimed the disks belong to a raid afterwards). This guide was written by one of our forum members SilverLeaf and was originally written as a forum post. Prerequisites. SUMMARY This step-by-step article describes how to use the Secedit. Parted has gone a long way from when it first came out. tgz --newer -C /dev/sda2. This means that fuse-exfat cannot access the whole volume. /dev/sda is the working drive, /dev/sdb the new one sudo dd if=/dev/sda of=/dev/sdb count=1 You…. 595949] scsi 2:0:0:0: Direct-Access ATA. 6G 0 disk if you want to make sure a thumb drive is really /dev It's a good learning experience to recreate a partition table or try to get data. # This gives root shell on local. hi, i have a redhat system with 2 disks. accessible to all Red. Tests have indicated that the first device to be detected is mapped to sda and represented in the directory /proc/scsi/usb-storage-0. The sbd daemon, combined with the external/sbd STONITH agent, provides a way to enable STONITH and fencing in clusters without external power switches, but with shared storage. p Disk /dev/sdb: 100 GiB. This folder "mapper" has some soft link to other folders. Run ‘df –H’ before and after to see. Each tar file contain the main script that should go into /usr/sbin, the set of directories in /usr/shar/rear as well as documentation and sample config file. We are going to install Arch Linux in a two step process. Introduction. 2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes. # fdisk -l /dev/sdb the above command will recreate partition with initialize contents, so if private region size and format type is not default, then you could. Use GParted to increase disk size of a Linux native partition. If you try them yourself, it might cause damage or irreparable loss. The symlink in /dev/md/ will be whatever is in the name field of the superblock. Creating and deleting new partitions in linux a very normal practice. 4′ x 8′ bed. sgdisk --load-backup=table /dev/sdb sgdisk -G /dev/sdb Rescan the tables partprobe /dev/sdb or possibly a more straightforward, but risky -. The LVM meta data is damaged or corrupted. You will find many ways to clone an SD-card there are not spend 4-5 hours following your script to recreate the same image. My point is that you want to make sure you don't get the names wrong. Let’s assume we have an empty disk /dev/sdb, onto which we want to create a volume group named “vmdata”. Erases all signatures from the device /dev/sdb and creates a signature backup file ~/wipefs-sdb-. U can see the status of the recovery process in the /proc/mdstat file. # fdisk /dev/sdb -l. On my system it was /dev/sdb but yours may be different. How to Make GPT Partition Table and Create Partitions with parted on Linux tagged cfdisk, Command line, fdisk, Hard disk, Howto, Linux, parted, RAID, Software, Tutorial. sfdisk -d /dev/sdb | sfdisk /dev/sda This will recreate the exactly same partition table on disk /dev/sda as we have on /dev/sdb right now. I will be using these for examples. # fdisk /dev/sdb. Running From an External Hard Drive The SD card of the Raspberry Pi is required for booting. Enter p to create a primary partition. Assuming you add a new device named /dev/sdb to hold the new boot partition, you should create a partition on it using fdisk or sfdisk. Some of it's functions have been removed. Now I need WinXp again. From a terminal type the following commands: fdisk /dev/sdb. Linux Disk Partitioning (fdisk, parted) This article discusses the disc partitioning utilities available Linux, with specific reference to the information needed for the RHCSA EX200 and RHCE EX300 certification exams. Please make sure that an iSCSI Target has been created and ready for use in theSAN / NAS targets. Hard disks can be divided into one or more logical disks called partitions. As you see, pg_dump writes its result to the standard output. Data previously written to dm-multipath devices is accessible through any of the /dev/sdxy devices that map to the same target LUN. You may want to read a little about Raid first, if you’re not familiar. is it necessary to perform step 1? or is it safe to jump right into step 2 (using mdadm /dev/md0 -a /dev/sdb)? also with regards to step 4, could you show me how you recreate your grub entry of both disks? i. Like, oops. 1 (waas-rescue-cdrom-4. This is what you need for any of the RAID levels: A kernel with the appropriate md support either as modules or built-in. Example (software RAID using /dev/sda and /dev/sdb): grub-install /dev/sda grub-install /dev/sdb. Yes, permanent labellings works where you can use them, but if a program is hardcoded to use eg. - Init /dev/sdb These files can be used to recreate the. On Linux distributions, fdisk is the best tool to manage disk partitions. Using dd like this will mean that any data on /dev/sdb (including filesystems) will be overwritten. [ads-post] To create a partitions using fdisk tool on /dev/sdb, follow the below procedures. The /dev/MAKEDEV. Adding iSCSI Storage to a Linux Computer This article describes mounting iSCSI luns from SAN iSCSI targets to Linux hosts. So, you created an array and you messed up something? Now you would like to delete it? Please note: all data will be lost with. Simply set SBD_WATCHDOG_DEV to the path where we can find your device and thats it. 0 GB, 59055800320 bytes 255 heads, 63 sectors/track, 7179 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 1275 10241406 83 Linux /dev/sda2 1276 2040 6144862+ 82 Linux swap / Solaris /dev/sda3 2041 7179 41279017+ 83 Linux Disk /dev/sdb. 2, V3 and V4. If you cannot find a way to boot to installed hard drive OS, boot up livecd OS and at terminal Verify what is installed OS partition using “lsblk -f”. wipefs /dev/sda* Prints information about sda and all partitions on sda. # fdisk -l /dev/sdb the above command will recreate partition with initialize contents, so if private region size and format type is not default, then you could. After a server crash, volume group device files are not seen under /dev/. Data previously written to dm-multipath devices is accessible through any of the /dev/sdxy devices that map to the same target LUN. we can look at them in other blogs/ posts. Using fdisk you can create a new partition, delete an existing partition, or change existing partition. Then you should be able to grub-install /dev/sda. - Init /dev/sdb These files can be used to recreate the. My goal is to re-create all signing profiles and certificates, so I do following steps: Your account already has a signing certificate for this machine but it is not present in your keychain. After this you should see the partition you would like to delete. Commands like fdisk, sfdisk and cfdisk are general. 0 GiB Logical sector size: 512 bytes Disk identifier (GUID): 92063063-2A9C-4D91-888A-3FDD49CEA0D7 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 58626254 Partitions will be aligned on 2048-sector boundaries Total free space is 23584941 sectors (11. /dev/sdb is VMware virtual disk and /dev/sdb1 is LVM physical volume, now I need to increase /dev/sdb1 size without reboot. 8 TiB, 2000398934016 bytes, 3907029168 sectors there is one option you could try and that it is to recreate the array -> will this work? -> I don. This solution enables us to decouple the underlying virtual machines from the business value provided by our application and allows us to take advantage of immutable infrastructure. udevadm info --name=/dev/sdb --query=property This shows the names/values of all the properties of your device. Re: [SOLVED] Deleted partition table on drive, how to rescue? Well, if you had only one partition, it should be doable to recreate it It will probably start either from sector 63 or sector 2048, and end at the end of the disk. Re: Unable to use /dev/sdb If you want to see your MBR, you can use a command such as 'sudo dd if=/dev/sdb bs=512 count=1 status=noxfer | od -Ax -tx1z'. 2 GB, 17179869184 bytes, 33554432 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk label type: dos. $ apt-get install libssl-dev python3-daemon python3-pip libffi-dev Finally, install vICN through: $. The instance had 3 EBS volumes attached: 1 8GB root partition of /dev/sda1; 1 60GB block as /dev/sf; and 1 1TB block as /dev/sdg. There are several positions in the script that have to be addapted accordingly if you have more or less drives or different identifiers (e. > ERROR: file system is larger than underlying device: 63467159552 > 63467159040. Raspberry Pi out of disk space. # fdisk /dev/sdb -l. How to recreate a lost OCR ASM disk group from scratch. /dev/sda, this question persists. [FAILED] Failed to start Recreate Volatile Files and Directories. SBD expands to storage-based death, and is named in reference to Novell's Cluster Services, which used SBD to exchange poison pill messages. If these parameters are not set to 2 you will need to recreate the file system. These device nodes exist only when the device-specific driver is loaded. 6G 0 disk if you want to make sure a thumb drive is really /dev It's a good learning experience to recreate a partition table or try to get data. Preferably a kernel from the 4. Strangely, read operations work fine (be it writing zeros of random data) along the whole disk. Droped it on the ground and got blinking red light. Another possibility is that your kernel lacks support for GPT. CST8207: GNU/Linux Operating Systems I Lab Worksheet and Assignment Twelve Disks, Partitions, and File Systems 4. When you create a VM in Windows Azure you are provided with a temporary storage automatically. sudo grub-install /dev/sda (or /dev/sdb) In doubt, do both. Solved: Dear Team, I was trying to rescue a WAVE-274 from the rescue CD, I downloaded the ISO image 4. I have got 2 hard disks of 2GB size each - # fdisk -l 2>/dev/null | grep '/dev/sd[a-b]' Disk /dev/sda: 2147 MB, 2147483648 bytes Disk /dev/sdb: 2147 MB, 2147483648 bytes The following steps will show you how to create logical volumes on these hard disks. SSH into your web server (dev, production, no difference) and browse to your mysql folder (mine was at /var/lib/mysql for a Plesk installation on Linux) Compress the mysql folder Download an archive of mysql folder which should contain all mySQL databases, whether MyISAM or innoDB (you can scp this file, or move this to a downloadable directory, if need be). Rebuild the partition table. While you could make backups, replace /dev/sdb as. By calling fsck on /dev/sdb you're giving it some unexpected data in front of the filesystem, and it sounds like that managed to confuse the heck out of it. umount /dev/sdb3. How to create zfs mirror with default installation? Now I want to import/recreate same mirror. Checked both primary and standby database, the standby redo logs have been created. A master boot record (MBR) is the 512. For some reasons, you can need to remove you swap partition in lvm mode. With fdisk started in sector mode for /dev/sdb you can delete the partitions with d and then the number of the partition sdb1 that is 1. The disk set to faulty appears in the output of mdadm -D /dev/mdN as faulty spare. 1, the "Backup Data" is stored on the System Disk which is limited to 60 GB. The sbd daemon, combined with the external/sbd STONITH agent, provides a way to enable STONITH and fencing in clusters without external power switches, but with shared storage. Virtualizor support said: Your /dev/sda2 partition is mounted on '/' so its not posssible to use it for panel as storage. 4 GB, 107374182400 bytes, 209715200 sectors Units = sectors of 1 * 512 = 512 bytes. Considering that my target filesystem is a clone of the VM parent of the system in my tar archive, I am effectively updating that VM to match the current (production) system, so in principle I could “rsync” the differences, if I had both. A disk can be used as a simple entity or broken up into one or more partitions. As you can see multipath creates three different ways to access the device. /dev/sdb and /dev/sdb1 are very different things. This guide is intended for people who are looking to do quality data recovery using free tools. Disclaimer: This is a bit of a tricky operation. 8 TiB, 2000398934016 bytes, 3907029168 sectors there is one option you could try and that it is to recreate the array -> will this work? -> I don. 7 TiB) Number. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. On my machine, the mounted sd card was sdb linux dd worked to copy the 2GB Sandisk SD to my 8GB kingston. Repeat that for the partitions 2 to 4. Type 'help' to view a list of commands. /dev/sdb is VMware virtual disk and /dev/sdb1 is LVM physical volume, now I need to increase /dev/sdb1 size without reboot. /dev/sdb1 1 66 530125 83 Linux /dev/sdb2 67 132 530142 83 Linux /dev/sdb3 133 121538 975193693 83 Linux /dev/sdb4 121539 121600 498012 83 Linux. /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 9729 78043770 8e Linux LVM Disk /dev/sdb: 82. How to setup thin Provisioned Logical Volumes in CentOS 7 / RHEL 7 by Pradeep Kumar · Published July 15, 2016 · Updated August 3, 2017 LVM (Logical Volume Management) is a good way to use the disk space on the server more efficiently. /dev/sdb is the entire disk, including the MBR with the partition table. After you have changed the hard disk /dev/sdb, boot the system. The puzzle is to see if this is possible without data loss (so without using the raid bios, because that seems to destroy all data). Assuming workign BE is solaris_woking (replace solaris_woking with your working BE) # devfsadm # zpool import -f rpool # beadm list # beadm create temppool # beadm activate temppool # reboot. fdisk stands (for "fixed disk or format disk") is an most commonly used command-line based disk manipulation utility for a Linux/Unix systems. For example, a USB mass storage device would be /dev/sdb, and a USB printer would be /dev/usb/lp0. The purpose of this document is to review the recovery process when a disk is missing or damaged, and then apply that process to plausible examples. We are going to install Arch Linux in a two step process. You can recreate a new (DOS-type) partition table with tool like parted (and I guess, fdisk and the likes). disk order Disk /dev/sdb: 64. above, "Readding a missing partition from a RAID array". It is as if it is blacklisted. If the container should be killed instead of stopped in case it needs to be stopped for recreation, or because state is stopped , please use the force_kill option. It is a menu driven program for creation and manipulation of partition tables. If the data partition is a GPT partition, you need to delete the partition and recreate it with the new size. How can this be re-created ? An extra disk was added prior the machine crashing. Modify Image ACL: When you create an customized image, by default the image is visible only to users in your project. Procedure. One of the disks got bad sectors and the other one lost it's superblock. Example (software RAID using /dev/sda and /dev/sdb): grub-install /dev/sda grub-install /dev/sdb. Once we installed the Device Mapper Multipathing. The information in this answer was given in hope that it might be useful and without any warranty. Creating and deleting new partitions in linux a very normal practice. Recover LVM Volume Groups and Logical Volumes WITHOUT Backups I recently had a misfortune, in that somehow my volume group meta-data got corrupted, and LVM would not enable the volume group. That’s why it was importat to find out which disk has failed – if you do this the other way around, you loose all your data. # First we need to get the partitions on the drive which contains your data. 1, the "Backup Data" is stored on the System Disk which is limited to 60 GB. Simply set SBD_WATCHDOG_DEV to the path where we can find your device and thats it.   Changing to a shell and using fdisk says something to the effect of fdisk using /dev/sda as default, /dev/sda not found. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. In this example /dev/vg01/lvol01 is the LVM volume and /mnt/iscsi is the mount point. How-to Fix Invalid MSDOS Partition Tables Summary. Cannot create zpool using links in /dev/disk/by-id #3708. th HDD, and their order seems wrong. Destruction. For some reasons, you can need to remove you swap partition in lvm mode. I was installing Voyage Linux on a compact flash card, and while I was messing around with GParted and other filesystem tools I accidentally ran some commands on/dev/sdb, my main hard disk, instead of /dev/sdc, the compact flash card. Re: "The backup GPT table is corrupt, but the primary appears OK, so that will be use Correct, like TheFu says, after you create the partitions the array members are the partitions, not the whole disks. 0 GiB Logical sector size: 512 bytes Disk identifier (GUID): 92063063-2A9C-4D91-888A-3FDD49CEA0D7 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 58626254 Partitions will be aligned on 2048-sector boundaries Total free space is 23584941 sectors (11. 2-k9), and I followed the procedure: first #2 to format the Flash, then #3 to copy the cookie, then #5 to copy de. Yes, the HDD would be erased when you clone the SSD onto it. There are several positions in the script that have to be addapted accordingly if you have more or less drives or different identifiers (e. I took a shortcut here which needs explanation. Assume that the current Linux is installed on device /dev/sda and that the GRUB stage1 bootloader is also installed on /dev/sda. Jump to: gdisk /dev/sdb To fix it you most probably need to recreate this file. ("sdb" is the first added. Basic instruction for Linux Mint 17. From the volume group, we will create a logical volume. And again running pvcreate manually fixed the issue. I created an instance attached to a volume, started and it run without trouble. If you try them yourself, it might cause damage or irreparable loss. You could just rename linux. This is a short tutorial that explains how to create an LVM in Linux. 7 TiB) Number. More specifically, I can't bring up OSD with files placed on a root filesystem, without dedicated disk. In this example /dev/vg01/lvol01 is the LVM volume and /mnt/iscsi is the mount point. 3 GB, 82348277760 bytes 255 heads, 63 sectors/track, 10011 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 10011 80413326 8e Linux LVM. py install Deployment machine. 04 # First remove the second partition and recreate second partition with smaller size and add a third partition to it sudo fdisk -l #assume /dev/sdb is the USB stick # umount the partition 2 in order to modify it sudo umount/dev/sdb2 # partition the USB stick sudo fdisk /dev/sdb # (d) (2) to delete partition 2 # and then. This is what you need for any of the RAID levels: A kernel with the appropriate md support either as modules or built-in. After this you should see the partition you would like to delete. Expand the filesystem to cover the entire eMMC. Type 'help' to view a list of commands. When using external SCSI disks, SCSI device names may change their corresponding mappings after a reboot. In an attempt to recover, I recreated the array a few times (assuming that if I destroyed anything creating it once, creating it again won't do anything worse.   My /dev directory has no. We are going to install Arch Linux distro in an USB storage device from an existing GNU/Linux system (Debian). Rear recovery does not start due to "No code has been generated to recreate pv:/dev/sda2 (lvmdev). 07) to pogoplug v3, I have tried hard to fit all existing code into latest framework, to make it maintainable. The following example is assuming that your source disk (the ones from the NAS) is /dev/sdb and your target disk (the one you put in with it) is /dev/sdd: Be absolutely certain that you selected the correct output before sending the command! dd if=/dev/sdb of=/dev/sdd conv=noerror,sync bs=512. Problem TSA - lost disk/LV Resolution Steps used to recreate / reinstall XPI Store on TSA-CP…… SUDO cheat…. I've installed an usb image on Pen drive along with MBR. So if you would like to change the name of the database administrator in SAP systems from user1 to user2, for example, you need to add the user2 to the group group sdba & remove. sfdisk -d /dev/sdb | sfdisk /dev/sda In my case I had to add –force to the command because “ partition 1 does not end at a cylinder boundary ”. Now you will see the partition information of the /dev/sdb disk and you will see one partition. Creating and deleting new partitions in linux a very normal practice. [[email protected] ~]# fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0xe1410716. If the data partition is a GPT partition, you need to delete the partition and recreate it with the new size. Disclaimer: This is a bit of a tricky operation. [FAILED] Failed to start Recreate Volatile Files and Directories. /dev/sdb is the entire disk, including the MBR with the partition table. How To Grow Linux Virtual Disks in VMware. This is very important because partitioning tools, fdisk included, may round down slightly the provided value to cylinder boundary. This article uses an example with three similar 1TB SATA hard drives. Click Start, type system restore in the Start Search box, and then click System Restore in the Programs list. ("sdb" is the first added. sfdisk -d /dev/sdb | sfdisk /dev/sda This will recreate the exactly same partition table on disk /dev/sda as we have on /dev/sdb right now. Use fdisk to recreate /dev/sda1 and /dev/sda2 partitions as they were on the original system. 6-01_Allstar. Is there a way in Linux to delete the mbr (just like dos fdisk /mbr command)? You can delete the mbr (master boot recored) using the dd command itself. 5GB usinglvextend, and then I disable and recreate the swap area: 1 2. If you are using the same machine for deployment and orchestration, make sure to run vICN as root. It won't be anything crazy. How To Create Linux LVM In 3 Minutes. 2, V3 and V4. The software RAID in Linux is well tested, but even with well tested software, RAID can fail. This is a Forthscale blog aimed to share the knowledge we had gained in our projects. APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse System databases must be rebuilt to fix corruption problems in the master, model, msdb, or resource system databases or to modify the default server-level collation. Materials on this site are not original. sfdisk -d /dev/sdb | sfdisk /dev/sda This will recreate the exactly same partition table on disk /dev/sda as we have on /dev/sdb right now. 7 TiB Logical sector size: 512 bytes Disk identifier (GUID): 76360B85-31EF-4155-8F9E-767C0C14454E Partition table holds up to 128 entries First usable sector is 34, last usable sector is 5860533134 Partitions will be aligned on 2048-sector boundaries Total free space is 5860533101 sectors (2. Re: How to recreate a dmraid RAID array with mdadm. I see the problem now. [ads-post] To create a partitions using fdisk tool on /dev/sdb, follow the below procedures. 42 (29-Nov-2011) /dev/sdb is entire device, not just one partition! Proceed anyway? (y,n) y Filesystem label= OS type: Linux. There are 2 physical disks: /dev/sda = Operating System /dev/sdb = Data I have successfully mounted /dev/sdb using ssm (which is awesome btw!), but I'm now stuck. Bob Plankers. I know this might sound weird at first, but hear me out. # bunzip2 -dc /srv/boot2. Is there a way to force the first disk ,the server sees to be named /dev/sda ? Or is there any way i can specify in kickstart file, to perform the partitioning on ,any or first, disk it finds. sh parted /dev/sdb mklabel msdos parted /dev/sdc mklabel msdos parted /dev/sdd mklabel msdos. Since Btrfs still has warnings about the write hole issue I would like to see if it's possible to recreate # integritysetup open --integrity sha256 /dev/sdb sdb. Presentation. dd if=/dev/zero of=/dev/sdb bs=64k count=100k dd of=/dev/null if=/dev/sdb bs=64k count=100kFirst a word of warning. [[email protected] ~]# mount /dev/sdb /yum Note: this is pretty straight forward but there are many considerations that you may be working with and many other variables that would arise. If you have a SW RAID1 and I just replaced, say, /dev/sda with a new HDD as the old one failed. In that case, you will have to use a live CD to try to recover your box. Page 3 of 6. /dev/disk/by-* ), but despite the best intentions, this does NOT answer the question. The first field is the name of the partition. Re: "The backup GPT table is corrupt, but the primary appears OK, so that will be use Correct, like TheFu says, after you create the partitions the array members are the partitions, not the whole disks. This folder "mapper" has some soft link to other folders. img of=/dev/sdb 2. Identify your ESXi boot device from the Linux prompt. #tune2fs -O ^has_journal /dev/sdb1. You would need to determine what group it belongs to and then see whether you can resize the volume to get it removed. 99g (VG is on 1 PV, 0 LV on. 1 setup as a BackupPC server. As you can see multipath creates three different ways to access the device. Once done, you can inspect the USB partition structure using parted /dev/sdb print. You may need to modify this command according to your system configuration. I don't want to start all. You do not want to write to your hard drive!! Once you have identified the device use 'dd' to write the image.