Thread: Grub/Ubuntu Live USB destroys Partitions

hi!

have serious problem. installed ubuntu 9.10 on usb pen drive. booted , works fine destroyed linux partition on hard drive. had windows/ubuntu dual boot filesystem of linux partition "unknown". thus, grub gives error 17.

same happend on similar system after booting usb pen drive!

parted shows partitions this:

code:

(parted) print                                                             model: ata st9120822as (scsi) disk /dev/sda: 120gb sector size (logical/physical): 512b/512b partition table: msdos  number  start   end     size    type      file system     flags  1      32.3kb  53.7gb  53.7gb  primary   ntfs            boot  2      53.7gb  120gb   66.3gb  extended  5      53.7gb  117gb   63.6gb  logical   [edit: fs missing!!!]  6      117gb   120gb   2755mb  logical   linux-swap(v1)

as can see, partition number 5 hasn't filesystem anymore.

grub code used booting looked this:

code:

menuentry "ubuntu, linux 2.6.31-16-generic" {         recordfail=1         if [ -n ${have_grubenv} ]; save_env recordfail; fi         set quiet=1         set root=(hd0,1)         linux   /boot/vmlinuz-2.6.31-16-generic root=/dev/sdb1 ro   quiet splash         initrd  /boot/initrd.img-2.6.31-16-generic }

the fstab generated this:

code:

# <file system> <mount point>   <type>  <options>       <dump>  <pass> proc            /proc           proc    defaults        0       0 # / on /dev/sda1 during installation uuid=ffdefc9c-5ea6-4067-aa84-a38434d7b862 /               ext4    errors=remount-ro 0       1 # /stick on /dev/sda3 during installation uuid=77c4-50c2  /stick          vfat    utf8,umask=007,gid=46 0       1 # swap on /dev/sda5 during installation #uuid=e31e9517-c043-4f1d-9305-a0901c54128e none            swap    sw              0       0 /dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0 /dev/scd1       /media/cdrom1   udf,iso9660 user,noauto,exec,utf8 0       0 /dev/fd0        /media/floppy0  auto    rw,user,noauto,exec,utf8 0       0 /dev/mapper/cryptswap1 none swap sw 0 0

any idea how boot process kill partitions!?

(recovery parted or testdisk not possible far)

thank you!
björn

use super grub disk , still able boot internal drives. partition 5 (logical) doesn't have file system because enveloping swap partition.

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