Dear George, LVM drives are a little different to normal partitioned drives. Funnily enough an having the same issue with one of mine. You first have to mount them with the lvm tools before scanning. Have you done this? Did you have a backup of the machine, and more importantly the meta data for the lvm drive?
Simon Vass Technical Manager E-Tech Uganda Ltd http://www.etech.ug Tel: +256 (0) 312260620 or (0) 312260621 Email: [email protected] ----- Original Message ----- From: "Bernard Wanyama" <[email protected]> To: "Chris Wilson" <[email protected]> Cc: "Linux Users Group Uganda" <[email protected]> Sent: Thursday, 26 November, 2009 13:25:11 GMT +03:00 Iraq Subject: Re: [LUG] Are these drives gone? Hi George, Have you tried the following commands: fdisk -l dmesg | more should give you some idea of what the system can or cannot see in terms of storage devices and error messages. As Chris suggested, smartctl will also give you an idea of how to proceed. Kind regards, Bernard 2009/11/26 Chris Wilson <[email protected]>: > On Thu, 26 Nov 2009, George Lule wrote: > >> Dear all,I am trying to recover data from (of course) a failed system. >> According to the resident guy, system was running Fedora Core 4, LVM >> with 2 SATA drives each 300GB. However when I try to scan them mdadm >> --examine --scan /dev/sda1 >> /etc/mdadm/mdadm.conf or when I try to >> fdisk them, fdisk /dev/sda1 I get the errors >> >> <start errors> >> >> usb-uhci.c: interrupt, status 3, frame# 121 >> sda: Unit Not Ready, sense: >> current 00:00 sns = 70 2 >> ASC=3a, ASCQ=0 >> Raw sense data: 0x70 0x00 0x02 0x00 0x00 0x00 0x02 0x0a 0x3a >> sda : block size assumed to be 512 bytes, disk size 1GB. >> sda: Write Protect is off >> I/O error: dev 08:00, sector 0 >> ldm_validate_partition_table(): Disk read failed. >> I/O error: dev 08:00, sector 0 >> unable to read partition table >> >> </end errors> >> >> Please note that am doing this recovery off a Knoppix live CD, but am >> wondering, is it worth proceeding or these drives are completely gone? >> Your advise will be greatly appreciated > > It sounds like /dev/sda is completely gone. What about the other drive? > > You could use smartctl -A /dev/sda to check whether the drive thinks that > it's dead or dying, and check the Current_Pending_Sector and > Offline_Uncorrectable counts to see how many sectors the drive thinks are > bad. If it's not too many, some of the data may be recoverable from that > drive. > > Cheers, Chris. > -- > Aptivate | http://www.aptivate.org | Phone: +44 1223 760887 > The Humanitarian Centre, Fenner's, Gresham Road, Cambridge CB1 2ES > > Aptivate is a not-for-profit company registered in England and Wales > with company number 04980791. > _______________________________________________ > LUG mailing list > [email protected] > http://kym.net/mailman/listinfo/lug > %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ > > The above comments and data are owned by whoever posted them (including > attachments if any). The List's Host is not responsible for them in any way. > --------------------------------------- > > > _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. --------------------------------------- _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. ---------------------------------------
