Error Device Dev Sda3 Not Found
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colton7909 Member Registered: 2012-05-18 Posts: 3 [SOLVED] ERROR: Unable to find root device '/dev/sda3' Earlier I updated the kernel to my arch system and found this error while trying to boot. I hate to post this because there are so device dev sda3 not found or ignored by filtering many topics like it, but I've been looking for hours for a solution to this
Linux Dev Sda3
problem and can't find one.Here is the output: Booting 'Arch Linux' root (hd0,1) Filesystem type is ext2fs, partition type 0x83 kernet /vmlinuz-linux pvcreate device not found (or ignored by filtering) root=/dev/sda3 ro [Linux-bzImage, setup=0x4200, size=0x2ff2d0] initrd /initrd @ 0xfd17000, 0x2c878c bytes] Probing EDD (edd=off to disable)... ok Decompressing Linux... Parsing ELF... done. Booting the kernel. :: Starting udevd... done. Waiting 10 seconds for device /dev/sda3 ...
Device /dev/mapper/mpath Not Found (or Ignored By Filtering)
ERROR: device '/dev/sda3' not found. skipping fsck. ERROR: Unable to find root device '/dev/sda3'. You are being dropped to a recovery shell type 'exit' to try and continue booting sh: can't access tty; job control turned offMy partition layout is like this:swap: /dev/sda1boot: /dev/sda2root: /dev/sda3extended: /dev/sda4home: /dev/sda5I have two hard drives, but i'm sure /dev/sda is the one with my OS.Here are some things I've tried:This was at the very bottom of the pacman pvcreate device not found ubuntu wiki# mkdir /mnt/arch # mount /dev/sdaX /mnt/arch (your root partition) # cd /mnt/arch # mount -t proc proc proc/ # mount -t sysfs sys sys/ # mount -o bind /dev dev/ # mount /dev/sdaX boot/ (your /boot partition) #This step is not needed if you do not have a separate boot partition # chroot . # pacman -Syu udev mkinitcpio # mkinitcpio -p linuxI've also tried performing the above, downgrading the kernel, updating my mirrorlist, reinstalling the kernel, and rebooting as mentioned here.I've alsa tried a few other things that I've read, but can no longer remember.Any help would be greatly appreciated! Thanks. Last edited by colton7909 (2012-05-25 02:09:36) Offline #2 2012-05-24 03:17:34 sirocco Member Registered: 2008-03-10 Posts: 143 Re: [SOLVED] ERROR: Unable to find root device '/dev/sda3' https://wiki.archlinux.org/index.php/Pe … ice_naming Offline #3 2012-05-24 05:32:17 rayman Member Registered: 2010-09-09 Posts: 37 Re: [SOLVED] ERROR: Unable to find root device '/dev/sda3' UUID's and labels are much more reliable than device nodes. Use the link in sirocco's post.That said, I don't think the devices got switched up, since you didn't change any partitioning-stuff(right?). Try using systemrescuecd, and use the boot-option "boot into installed linux". When I've had similair problems, systemrescuecd could usually boot into my linux-installation, and that'd allow me to rule out a lot of possible causes(and usually
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Forums Dedicated Server LVM setup PVCREATE says device not found... If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link http://www.webhostingtalk.com/showthread.php?t=1086039 above to proceed. To start viewing messages, select the forum that you want to visit https://ampedup.wordpress.com/2013/06/10/pvcreate-not-detecting-harddrives-device-devabc-not-found-or-ignored-by-filtering/ from the selection below. Results 1 to 21 of 21 Thread: LVM setup PVCREATE says device not found... Tweet Thread Tools Show Printable Version Subscribe to this Thread… Search Thread Advanced Search Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 09-27-2011,12:51 PM #1 upstart View Profile View Forum Posts View Forum Threads Junior Guru Wannabe Join Date Jan 2011 not found Posts 69 LVM setup PVCREATE says device not found... CentOS 5.6 x86_64. I setup the LVM "partition" during the OS install and here's the answers to a few commands I thought might help diagnose: [[emailprotected] ~]# pvcreate /dev/sdb5 Device /dev/sdb5 not found (or ignored by filtering). [[emailprotected] ~]# pvcreate /dev/sda5 Device /dev/sda5 not found (or ignored by filtering). [[emailprotected] ~]# cat /proc/mdstat Personalities : unused devices:
/dev/abc not found (or ignored byfiltering). During a recreation of an LVM Volume Group on a new machine, I noticed that the drives weren't being accepted by pvcreate when initializing them. My drives weren't RAID configured, as they are simply /dev/sdb,c,d,e,f,g, etc. The error thrown when "pvcreate /dev/sd#" was "Device /dev/sd# not found (or ignored by filtering)." (replacing # with the drive name such as sda1) What I did was edit the /etc/lvm/lvm.conf file, and change the filter to accept the sd scsi drives. I went the redneck approach and slapped a bunch of letters in to cover anything that could exist, but I'm sure there are other ways. This is my filter line: filter = [ "a|drbd.*|", "a|sda3|", "a|sd[bcdefghijklmnopqrstuvwxyz]|", "r|.*|" ] Note: sda3 is being used for a system partition and is being rejected in this line as well. That fixed it, and pvscan detected the drive, and pvcreate was able to access it. EDIT 10/3/2014: I've received quite a few reader alerts telling me to use partitions, along with the comments already posted seeming to say the same thing indirectly. I wanted to alert those that are unaware that you can include an entire disk into a Volume Group without partitions. Since the entire disk will be used, partitions would be redundant. That is not the cause of the filtering issue, since I've experimented with partitions for 2-3 minutes when I had this issue with the same outcome. I'd also like to add a page from the documentation for CentOS that talks about LVM filtering: http://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/lvm_filters.html While it's for CentOS 5, the syntax on LVM has remained the same for quite a few years. Share this:FacebookTwitterLike this:Like Loading... Related June 10, 2013October 3, 2014 situationalawareness Post navigation ← LVM Volume Group MetadatafullHold on to what isimportant → 9 thoughts on “Pvcreate not detecting harddrives (Device /dev/abc not found (or ignored byfiltering).” Ritesh Kumar says: September 11, 2013 at 5:09 am just run command # parted -s /dev/sd# mklabel msdos and then try pvcreate /dev/sd# situationalawareness says: September 14, 2013