Re: LVM ext2 recovery [rabarbaras @ 2011-02-15 14:41:02]

Tema: Re: LVM ext2 recovery
Autorius: rabarbaras
Data: 2011-02-15 14:41:02
Duomenis turi. Ir gal but gerus
/dev/sda11p1

On 02/15/11 14:21, lingus wrote:
> # /sbin/fdisk /dev/sda11
>
> The number of cylinders for this disk is set to 9137.
> There is nothing wrong with that, but this is larger than 1024,
> and could in certain setups cause problems with:
> 1) software that runs at boot time (e.g., old versions of LILO)
> 2) booting and partitioning software from other OSs
> (e.g., DOS FDISK, OS/2 FDISK)
>
> Command (m for help): p
>
> Disk /dev/sda11: 75.1 GB, 75162576384 bytes
> 255 heads, 63 sectors/track, 9137 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sda11p1 * 1 9137 73392921 83 Linux
>
> # /sbin/fdisk /dev/sda11p1
>
> Unable to open /dev/sda11p1
>
> On 02/15/2011 01:21 PM, rabarbaras wrote:
>> ka rodo fdisk -l /dev/sda11 ?
>>
>> On 02/15/11 12:30, lingus wrote:
>>> Sveiki, nulėkė debian servas, su LVM, o po juo XEN virtualios mašinos.
>>> Turiu backupą su Norton Ghost, bet jis nesupportina LVM ir atkuria kaip
>>> paprastas particijas taigi gaunu:
>>>
>>> # /sbin/fdisk -l
>>> Warning: omitting partitions after #15.
>>> They will be deleted if you save this partition table.
>>>
>>> Disk /dev/sda: 250.0 GB, 250059350016 bytes
>>> 255 heads, 63 sectors/track, 30401 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sda1 * 1 122 979933+ 83 Linux
>>> /dev/sda2 123 30401 243216067+ f W95 Ext'd (LBA)
>>> /dev/sda5 123 960 6731203+ 83 Linux
>>> /dev/sda6 961 4310 26908843+ 83 Linux
>>> /dev/sda7 4311 12683 67256091 83 Linux
>>> /dev/sda8 12684 13102 3365586 83 Linux
>>> /dev/sda9 13103 16452 26908843+ 83 Linux
>>> /dev/sda10 16453 18127 13454406 82 Linux swap / Solaris
>>> /dev/sda11 18128 27265 73400953+ 83 Linux
>>> /dev/sda12 27266 27527 2104483+ 83 Linux
>>> /dev/sda13 27528 27658 1052226 83 Linux
>>> /dev/sda14 27659 29617 15735636 83 Linux
>>> /dev/sda15 29618 30270 5245191 83 Linux
>>>
>>> nuo 1 iki 10 yra sisteminės particijos var, home, tmp, usr, swap,
>>> tereikėjo pa'editint GRUB, fstab ir sistema pakilo.
>>>
>>> /dev/vg00/root / ext3
>>> /dev/vg00/var /var ext3
>>> /dev/vg00/home /home ext3
>>> /dev/vg00/tmp /tmp ext3
>>> /dev/vg00/usr /usr ext3
>>> --------------------
>>> /dev/sda5 / ext3
>>> /dev/sda6 /var ext3
>>> /dev/sda7 /home ext3
>>> /dev/sda8 /tmp ext3
>>> /dev/sda9 /usr ext3
>>>
>>> Svarbiausiam man ši mašina:
>>>
>>> # cat /etc/xen/oracle
>>> name = "oracle"
>>> uuid = "cafff27f-362b-866f-53f7-1f3571fcb665"
>>> maxmem = 1024
>>> memory = 1024
>>> vcpus = 2
>>> bootloader = "/usr/bin/pygrub"
>>> on_poweroff = "destroy"
>>> on_reboot = "restart"
>>> on_crash = "restart"
>>> #vfb = [ "type=vnc,vncdisplay=1,vncpasswd=oracle" ]
>>> vfb = [ ]
>>> # fix the lagging mouse in VNC
>>> #usbdevice = 'tablet'
>>> disk = [ "phy:/dev/vg00/oracle.xen-disk,xvda,w",
>>> "phy:/dev/vg00/oracle.xen-swap,xvdb,w" ]
>>> vif = [ "mac=00:16:3e:2f:10:e3,bridge=xenbr0" ]
>>>
>>> # tail -20 /etc/lvm/archive/vg00_00010.vg:
>>>
>>> oracle.xen-disk {
>>> id = "RwCJVW-ik57-PJNz-1uRD-k3Ik-xoqb-sQ06fu"
>>> status = ["READ", "WRITE", "VISIBLE"]
>>> segment_count = 1
>>>
>>> segment1 {
>>> start_extent = 0
>>> extent_count = 2240 # 70 Gigabytes
>>>
>>> type = "striped"
>>> stripe_count = 1 # linear
>>>
>>> stripes = [
>>> "pv0", 688
>>> ]
>>> }
>>> }
>>>
>>> Pagal šitą sprendžiu, kad man reikalinga particija yra 70GB, taigi -
>>> "/dev/sda11", tačiau:
>>>
>>> # mount -v -t ext2 /dev/sda11 /mnt/
>>> mount: wrong fs type, bad option, bad superblock on /dev/sda11,
>>> missing codepage or other error
>>>
>>> # dmesg | tail
>>> hfs: unable to find HFS+ superblock
>>> hfs: unable to find HFS+ superblock
>>> hfs: unable to find HFS+ superblock
>>> VFS: Can't find an ext2 filesystem on dev sda11.
>>>
>>> Bandysiu drožt tą particiją su ext2 recovery toolsais, šiuo metu sukasi
>>> http://www.diskinternals.com/linux-recovery/. Bet labiau norėtųsi kaip
>>> nors pakišti tą particiją XEN'ui vietoj naudotos LVM, kad jis
>>> užsikrautų, gal užtektų ką nors gudraus parašyti čia?
>>> disk = [ "phy:/dev/vg00/oracle.xen-disk,xvda,w", "phy:/dev
>>> Gal eina nesudėtingai atgal surankioti LVM sistemą?
>>> Gal koks geresnis toolsas recoverinimui yra?
>>>
>>> Labai laukiu pasiūlymų, Dėkui =]
>