Since you noticed that the utils were gone, seems like JFS libs & programs were uninstalled/deleted. Now that you have them back, you're able to mount the filesystem normally. On Fri, Oct 23, 2009 at 5:59 AM, adfas asd <chimera_god@xxxxxxxxx> wrote: > When I was trying to find man for mkfs.jfs I discovered that jfsutils was suddenly not installed. I installed it and then could man mkfs.jfs . > > I rebooted so I could plug in the second drive, and then md0 was getting mounted on /home as it should. Indeed I have all my data again. I don't understand what happened. > > > --- On Thu, 10/22/09, Majed B. <majedb@xxxxxxxxx> wrote: > >> From: Majed B. <majedb@xxxxxxxxx> >> Subject: Re: Is My Data DESTROYED?! >> To: "adfas asd" <chimera_god@xxxxxxxxx> >> Cc: linux-raid@xxxxxxxxxxxxxxx >> Date: Thursday, October 22, 2009, 7:43 PM >> I don't know exactly what went wrong >> with your setup, so I can't tell >> why it's not mounting. >> >> Did you check the output of dmesg | tail after a failed >> mount? >> >> I'd suggest that you don't touch the disks, cables, nor the >> array. >> >> Try running sudo fsck /dev/md0 >> >> On Fri, Oct 23, 2009 at 5:18 AM, adfas asd <chimera_god@xxxxxxxxx> >> wrote: >> > >> > I don't understand exactly what it is to be done. If >> I can mount using a different superblock, do I then remove >> one of the drives from the array so I can put that drive >> away with my data until I can buy another drive to back up >> the data to? If so, how? >> > >> > How is it that the superblock on -both- drives got >> destroyed? Isn't RAID10 supposed to be mirrored? >> > >> > --- On Thu, 10/22/09, Majed B. <majedb@xxxxxxxxx> >> wrote: >> > >> > > From: Majed B. <majedb@xxxxxxxxx> >> > > Subject: Re: Is My Data DESTROYED?! >> > > To: "adfas asd" <chimera_god@xxxxxxxxx> >> > > Cc: linux-raid@xxxxxxxxxxxxxxx >> > > Date: Thursday, October 22, 2009, 7:12 PM >> > > If you have bad sectors here >> > > & there, and you didn't read the areas where >> the bad >> > > sectors are, you won't get read errors. >> > > >> > > That's why you should always have smartd running >> along >> > > with periodic sync_action -> check to force >> mdadm to >> > > check the array. >> > > >> > > >> > > >> > > There's still hope in recovering your data. >> Don't >> > > despair. >> > > >> > > On Fri, Oct 23, 2009 at 5:04 AM, >> > > adfas asd <chimera_god@xxxxxxxxx> >> > > wrote: >> > > >> > > >> > > How could this possibly have >> > > happened? The whole idea of RAID is so >> something like this >> > > won't happen. >> > > >> > > >> > > >> > > >> > > >> > > I was using JFS. >> > > >> > > >> > > >> > > I've lost confidence now in mdadm. I have too >> much >> > > data to back up practically, and am now at a >> loss. >> > > >> > > >> > > >> > > >> > > >> > > --- On Thu, 10/22/09, Majed B. <majedb@xxxxxxxxx> >> > > wrote: >> > > >> > > >> > > >> > > > From: Majed B. <majedb@xxxxxxxxx> >> > > >> > > > Subject: Re: Is My Data >> > > DESTROYED?! >> > > >> > > > To: "adfas asd" <chimera_god@xxxxxxxxx> >> > > >> > > > Cc: linux-raid@xxxxxxxxxxxxxxx >> > > >> > > > Date: Thursday, October 22, 2009, 6:40 PM >> > > >> > > > Seems like your >> > > filesystem is >> > > >> > > > corrupted. Some filesystems have >> alternative >> > > superblocks. >> > > >> > > > >> > > >> > > > you can mount your filesystem using an >> alternative >> > > >> > > > superblock using: mount -o >> sb=<offset> >> > > >> > > > You find the offset value by running a >> dry-run (test) >> > > of >> > > >> > > > mkfs on your drives. It will print multiple >> offsets >> > > for >> > > >> > > > superblocks. >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > On Fri, Oct 23, 2009 at 4:36 AM, >> > > >> > > > adfas asd <chimera_god@xxxxxxxxx> >> > > >> > > > wrote: >> > > >> > > > >> > > >> > > > >> > > >> > > > Today I went in to my HTPC, to find it was >> hung and >> > > the >> > > >> > > > drive light was stuck on. After all >> attempts to >> > > revive it >> > > >> > > > or switch to terminal 2 or 3 had failed I >> reset the >> > > system. >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > It rebooted to tell me that it cannot mount >> /home, >> > > the >> > > >> > > > RAID10offset2 device. >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > When I reboot in recovery mode and try to >> mount >> > > /dev/md0 >> > > >> > > > manually it informs me there is an invalid >> superblock! >> > > I >> > > >> > > > shut down and unplugged each drive in turn, >> and >> > > /proc/mdstat >> > > >> > > > shows the appropriate volume gone, but still >> can't >> > > mount >> > > >> > > > the array. >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > What has happened here? Is all my data >> destroyed? >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > -- >> > > >> > > > >> > > >> > > > To unsubscribe from this list: send the >> line >> > > >> > > > "unsubscribe linux-raid" in >> > > >> > > > >> > > >> > > > the body of a message to majordomo@xxxxxxxxxxxxxxx >> > > >> > > > >> > > >> > > > More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > > -- >> > > >> > > > Majed B. >> > > >> > > > >> > > >> > > > >> > > >> > > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > -- >> > > >> > > To unsubscribe from this list: send the line >> > > "unsubscribe linux-raid" in >> > > >> > > the body of a message to majordomo@xxxxxxxxxxxxxxx >> > > >> > > More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > >> > > >> > > >> > > >> > > -- >> > > Majed B. >> > > >> > > >> > > >> > >> > >> > >> > -- >> > To unsubscribe from this list: send the line >> "unsubscribe linux-raid" in >> > the body of a message to majordomo@xxxxxxxxxxxxxxx >> > More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> >> >> -- >> Majed B. >> -- >> To unsubscribe from this list: send the line "unsubscribe >> linux-raid" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Majed B. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
