/home directary data loss

[Craig White]

On Mon, 2009-01-12 at 12:35 +0800, 王召峰 wrote:
> >Date: Sat, 10 Jan 2009 22:09:56 -0700
> >From: Craig White <craigwhite at azapple.com>
> >Subject: Re: /home directary data loss
> >To: "Community assistance, encouragement,	and advice for using
> >	Fedora." <fedora-list at redhat.com>
> >Message-ID: <1231650596.4520.650.camel at lin-workstation.azapple.com>
> >Content-Type: text/plain; charset="UTF-8"
> >
> >On Sun, 2009-01-11 at 12:41 +0800, 王�峰 wrote:
> >> Help!
> >> I used "yum update" updated my system the other day, then I
>  restarted
> >> the computer, but it couldn't get in!
> >> So I used the DVD containing Fedora ISO to rescue the system, but I
> >> still saw nothing in /home/houghes which stores all my important
> >> files! 
> >> But then my first aim was to get the system up, and I used the DVD and
> >> chose "update existing sytem" hoping to get back to the point where I
> >> hadn't updated Fedora using "yum update". Though this is not the
> >> result, I got it!
> >> But I still couldn't see anything in /home/houghes !
> >> And since the system start-up process is so different from before, I
> >> covered /boot/grub/grub.conf with /boot/grub/grub.conf~ , and the
> >> start-up is normal now!
> >> But how Can I Get My /home/houghes data back?! Help!
> >----
> >Is it possible that /home was on a separate partition and isn't mounted?
> >
> >what do you get when run
>  the following commands?
> >
> >fdisk -l /dev/sda
> >mount
> >
> >Craig
> >
> >
> following is got by running fdisk -l /dev/sda and mount:
> [root at joggerwang ~]# fdisk -l /dev/sda
> 
> Disk /dev/sda: 160.0 GB, 160041885696 bytes
> 255 heads, 63 sectors/track, 19457 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x662db0cb
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1          25      200781   83  Linux
> /dev/sda2              26        8948    71673997+  83  Linux
> /dev/sda3            8949       10860    15358140   83  Linux
> /dev/sda4           10861       19457    69055402+   5  Extended
> /dev/sda5           10861       12772    15358108+  83  Linux
> /dev/sda6           12773       14684    15358108+  83  Linux
> /dev/sda7           14685       15703     8185086   83  Linux
> /dev/sda8           15704       16340     5116671   83  Linux
> /dev/sda9           16341       19457    25037271   8e  Linux LVM
> [root at joggerwang ~]# mount
> /dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
> /proc on /proc type proc (rw)
> sysfs on /sys type sysfs (rw)
> devpts on /dev/pts type devpts (rw,gid=5,mode=620)
> /dev/sda6 on /usr type ext3 (rw)
> /dev/sda5 on /var type ext3 (rw)
> /dev/sda3 on /opt type ext3 (rw)
> /dev/sda1 on /boot type ext3 (rw)
> tmpfs on /dev/shm type tmpfs (rw)
> none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
> sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
> gvfs-fuse-daemon on /root/.gvfs type fuse.gvfs-fuse-daemon
> (rw,nosuid,nodev)
> 
> 
> /dev/sda2 ought to be the partition I seperated for /home,
> and /dev/sda7, /dev/sda8 are seperated for /usr/local and /tmp
> respectively, so I tried to  add three lines in /etc/mtab for them as
> follows:
> /dev/sda2 /home ext3 rw 0 0
> /dev/sda7 /usr/local ext3 rw 0 0
> /dev/sda8 /tmp ext3 rw 0 0
> and in /etc/fstab as follows:
> UUID=61b8990c-043e-4d1f-9a37-7f330cc49eb5 /home
> ext3    defaults        1 1
> UUID=0cf03423-386b-407b-a60b-54c076692d77 /usr/local
> ext3    defaults        1 1
> UUID=d8297ee9-bd48-4b2c-a81a-ba0afdf42d0d /tmp
> ext3    defaults        1 1
> but my files in /home/houghes still don't come out!
> What should I do? 
----
first, take a looksee at /dev/sda2 and see if that really is your
old /home...

mkdir /home/oldhome
mount /dev/sda2 /home/oldhome
ls -l /home/oldhome

if it is, you can figure out the UUID of /dev/sda2, probably just by
doing...

# ls -l /dev/disk/by-uuid/

and putting that UUID into /etc/fstab for a /home mount

I don't think that editing mtab is going to be useful.

Craig