The computer gave me some strange errors like 'device not found' always while booting into Ubuntu, so tried to figure it out and used only the tips from this site to get a fast and secure virtual machine, which I know is possible to start up by a USB stick, well now I stuck here with a highly encrypted VM, it starts LUBUNTU from the stick but not my own Ubuntu 14.04 system which is encrypted on the stick as well ... arrgh.
I remember that the final advice was to boot now and cross fingers… well, here I'm.
Finally I got the USB ready to boot, works fine, now I want my system working again with this USB stick as the keyloader ... but how.
The GNU GRUB version 1.99-21ubuntu3.9 calls up 2 different entries:
- LUBUNTU
- Ubuntu
The syntax for loading the second iso is as follows:
setparams 'Run /second.iso (if at (hd0,msdos1) alias /isodevice)'
loopback loop /second.iso linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=second.iso splash -- initrd (loop)/casper/initrd.lz
and delivers the
error: file not found
error: no such disk
error: you need to load the kernel first.
Press any key to continue ...
brings me straight back to the GRUB. ???
How to start this by which reference ???
Managed to enter the BIOS, started with the USB stick into Lubuntu, now when I open a terminal:
root@lubuntu:/# sudo blkid -c /dev/null
/dev/loop0: LABEL="Lubuntu 13.10 i386" TYPE="iso9660"
/dev/loop1: TYPE="squashfs"
/dev/sda1: UUID="419f80ea-a281-4744-a437-9d542e0e53ea" TYPE="ext2"
/dev/sda5: UUID="7712339f-809a-49c4-a75f-52268e7db087" TYPE="crypto_LUKS"
/dev/sdb1: LABEL="LubuGrubIsoSwp" UUID="d9e77e76-8fbd-47f6-8b79-25386a6f6f11" TYPE="ext2"
/dev/sdb2: UUID="3d1893f5-6e68-46d0-a957-9a9d74dc5d10" TYPE="swap"
/dev/zram0: UUID="7f6856c8-6fac-4f11-9516-b84096cd0e1e" TYPE="swap"
/dev/zram1: UUID="516fdaa9-eaa3-4d73-afcf-18b2a48eeeb7" TYPE="swap"
/dev/sdc1: LABEL="Backup" UUID="8042115342114F72" TYPE="ntfs"
/dev/mapper/luks-7712339f-809a-49c4-a75f-52268e7db087: UUID="Q0yk3A-tXJO-yC6T-tlyw-0X1E-HQ2Y-2eNfOJ" TYPE="LVM2_member"
Furthermore ...
root@lubuntu:/# cat /etc/fstab
overlayfs / overlayfs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
/dev/sdb2 swap swap defaults 0 0
Please, can someone give me some little advice to start my computer again, either in recovery mode or a complete new installation, if this is possible from here?
Should be possible to re/activate it or not ? But how ?
Do you need some more information?
Managed to download testdisk
, here comes the selection I got:
root@lubuntu:/# testdisk
TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <[email protected]>
http://www.cgsecurity.org
Select a media (use Arrow keys, then press Enter):
>Disk /dev/sda - 60 GB / 55 GiB - KINGSTON SVP200S37A60G
Disk /dev/sdb - 7759 MB / 7400 MiB - TOSHIBA TransMemory
Disk /dev/sdc - 1000 GB / 931 GiB - SAMSUNG HD105SI
Disk /dev/mapper/lubuntu--vg-root - 55 GB / 52 GiB
Disk /dev/mapper/lubuntu--vg-swap_1 - 3871 MB / 3692 MiB
Disk /dev/mapper/luks-7712339f-809a-49c4-a75f-52268e7db087 - 59 GB / 55 GiB
Disk /dev/dm-0 - 59 GB / 55 GiB
Disk /dev/dm-1 - 55 GB / 52 GiB
Disk /dev/dm-2 - 3871 MB / 3692 MiB
Now comes the ultimate information for the programmer cracks here:
root@lubuntu:/# fdisk -l
Disk /dev/sda: 60.0 GB, 60022480896 bytes
255 heads, 63 sectors/track, 7297 cylinders, total 117231408 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00061965
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 499711 248832 83 Linux
/dev/sda2 501758 117229567 58363905 5 Extended
/dev/sda5 501760 117229567 58363904 83 Linux
Disk /dev/sdb: 7759 MB, 7759462400 bytes
239 heads, 62 sectors/track, 1022 cylinders, total 15155200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000bec46
Device Boot Start End Blocks Id System
/dev/sdb1 2048 3084287 1541120 83 Linux
/dev/sdb2 3084288 3903487 409600 82 Linux swap / Solaris
Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x012773ec
Device Boot Start End Blocks Id System
/dev/sdc1 63 1953518959 976759448+ 7 HPFS/NTFS/exFAT
Disk /dev/mapper/luks-7712339f-809a-49c4-a75f-52268e7db087: 59.8 GB, 59762540544 bytes
255 heads, 63 sectors/track, 7265 cylinders, total 116723712 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/luks-7712339f-809a-49c4-a75f-52268e7db087 doesn't contain a valid partition table
Disk /dev/mapper/lubuntu--vg-root: 55.9 GB, 55889100800 bytes
255 heads, 63 sectors/track, 6794 cylinders, total 109158400 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/lubuntu--vg-root doesn't contain a valid partition table
Disk /dev/mapper/lubuntu--vg-swap_1: 3871 MB, 3871342592 bytes
255 heads, 63 sectors/track, 470 cylinders, total 7561216 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/lubuntu--vg-swap_1 doesn't contain a valid partition table
root@lubuntu:/#
How do I use the command e2fsck
here? How is the exact syntax with my system?
Hope this gives the needed infos to get the system back on track.
The system gets more complicated, tried a re-installation, now the partition is totally scrambled.
Started from a Live/CD 12.04 and used some commands>
ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 60.0 GB, 60022480896 bytes
255 heads, 63 sectors/track, 7297 cylinders, total 117231408 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000b173c
Device Boot Start End Blocks Id System
/dev/sda1 2048 499711 248832 83 Linux
/dev/sda2 501758 117229567 58363905 5 Extended
/dev/sda5 501760 117229567 58363904 83 Linux
Disk /dev/mapper/luks-e1947161-3359-45a6-bfe2-5a140d8498fe: 59.8 GB, 59762540544 bytes
255 heads, 63 sectors/track, 7265 cylinders, total 116723712 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/luks-e1947161-3359-45a6-bfe2-5a140d8498fe doesn't contain a valid partition table
Disk /dev/mapper/ubuntu-root: 55.9 GB, 55889100800 bytes
255 heads, 63 sectors/track, 6794 cylinders, total 109158400 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/ubuntu-root doesn't contain a valid partition table
Disk /dev/mapper/ubuntu-swap_1: 3871 MB, 3871342592 bytes
255 heads, 63 sectors/track, 470 cylinders, total 7561216 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/ubuntu-swap_1 doesn't contain a valid partition table
Disk /dev/sdb: 7759 MB, 7759462400 bytes
239 heads, 62 sectors/track, 1022 cylinders, total 15155200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000bec46
Device Boot Start End Blocks Id System
/dev/sdb1 2048 3084287 1541120 83 Linux
/dev/sdb2 3084288 3903487 409600 82 Linux swap / Solaris
What can I do to get the system back to work?
Got my system back, how, I burned myself a LIVE-CD from openSuse 13.1, started with it, replaced all the Ubuntu mess up with the encrypted LVM raid, now the system works fine and superfast again, no need to rebuild it, will stay with the openSuse.
Thanks to all for the help, have a nice and good time with Ubuntu, maybe I will give it a try and install it beside openSuse ... makes this sense.
initramfs
usingapt-get
1.USB 2.CDROM 3.internal harddisk
POST
-logo then there will be a message like<F2> to enter Setup
or<F12> to enter boot menue
or something like that. Then hitF2
or whatever