Re: Destroyed Entries at /dev/sda - boot not possible anymore

[Stefan Lamby]

> Andrei Borzenkov <address@hidden> hat am 30. März 2015 um 15:40
> geschrieben:
>
>
> On Mon, Mar 30, 2015 at 3:48 PM, Stefan Lamby <address@hidden>
> wrote:
> >
> >> Andrei Borzenkov <address@hidden> hat am 30. März 2015 um 14:12
> >> geschrieben:
> >>
> >>
> >> On Mon, Mar 30, 2015 at 3:06 PM, Stefan Lamby <address@hidden>
> >> wrote:
> >> >
> >> >> Andrei Borzenkov <address@hidden> hat am 30. März 2015 um 13:52
> >> >> geschrieben:
> >> >>
> >> >>
> >> >> On Mon, Mar 30, 2015 at 2:29 PM, Stefan Lamby <address@hidden>
> >> >> wrote:
> >> >> >
> >> >> ...
> >> >> > There was no error, since grub seems to do everything it was told to.
> >> >> > The
> >> >> > error
> >> >> > was that it booted from usb stick instead of my laptops hard disk. My
> >> >> > fault
> >> >> > was,
> >> >> > that I didn't expect /dev/sda to be overwritten during the install
> >> >> > process
> >> >> > for
> >> >> > the usb disk.
> >> >> >
> >> >> ...
> >> >> >
> >> >> > BIOS is set to UEFI Boot, disabled secure boot.
> >> >> >
> >> >>
> >> >> Please boot to Linux and post output of "efibootmgr -v".
> >> >>
> >> >
> >> > Thank you very much for your time and support.
> >> > Here is the output you wanted.
> >> >
> >> > address@hidden:~# efibootmgr -v
> >> > BootCurrent: 0003
> >> > Timeout: 0 seconds
> >> > BootOrder:
> >> > 001E,001F,0010,0011,0012,0013,0014,0015,0016,0003,0019,001A,001B,0001,0002,0017,0018,0000
> >> > Boot0000* Windows Boot Manager
> >> > HD(1,800,100000,57132a06-a1c8-417f-bb0f-c0957dae67fc)File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...r................
> >> > Boot0001* arch_grub
> >> > HD(1,800,fa000,e3baa10e-75a1-42c0-816c-9bd86d46ec40)File(\EFI\arch_grub\grubx64.efi)
> >> > Boot0002* grub_uefi
> >> > HD(1,800,fa000,e3baa10e-75a1-42c0-816c-9bd86d46ec40)File(\EFI\grub_uefi\grubx64.efi)
> >> > Boot0003* ubuntu
> >> > HD(1,800,100000,57132a06-a1c8-417f-bb0f-c0957dae67fc)File(\EFI\ubuntu\shimx64.efi)
> >> > Boot0010 Setup
> >> > Boot0011 Boot Menu
> >> > Boot0012* Removable Drive
> >> > 030a2400d23878bc820f604d8316c068ee79d25b20699b27e1a34f488e97534d40523c1d
> >> > Boot0013* Hard Drive
> >> > 030a2400d23878bc820f604d8316c068ee79d25bf5b01cc8ce8e9841b3a8fb94b6dfefee
> >> > Boot0014* USB Storage Device
> >> > 030a2400d23878bc820f604d8316c068ee79d25b6895f49a99882e4bb0da03ec784d2828
> >> > Boot0015* CD/DVD/CD-RW Drive
> >> > 030a2400d23878bc820f604d8316c068ee79d25b3750dce1249e1748876bee5d3f25ebfb
> >> > Boot0016* Network
> >> > 030a2400d23878bc820f604d8316c068ee79d25b6567de8ee595634d842b325e6a43510b
> >> > Boot0017* Onboard NIC
> >> > 030a2400d23878bc820f604d8316c068ee79d25b1b7f7356e3475744a9a6ed8e91832083
> >> > Boot0018* Onboard NIC
> >> > 030a2400d23878bc820f604d8316c068ee79d25bb4a054dda1fa7043abf832c5a88367a6
> >> > Boot0019 Diagnostics
> >> > Boot001A Peripheral Device setting (OPROM setting)
> >> > Boot001B Change boot mode setting
> >> > Boot001E* USB
> >> > ACPI(a0341d0,0)PCI(1d,0)USB(0,0)USB(2,0)HD(1,ea8,fb3d58,c3072e18)File()
> >> > Boot001F* DVD
> >> > ACPI(a0341d0,0)PCI(1f,2)03120a00010000000000CD-ROM(1,7c8ed,1240)File()
> >> >
> >>
> >>
> >> Just change bootorder so that Ubuntu is listed first (you likely could
> >> do the same from within your BIOS setup). The following is one line in
> >> case it wraps.
> >>
> >> efibootmgr --bootorder
> >> 0003,001E,001F,0010,0011,0012,0013,0014,0015,0016,0019,001A,001B,0001,0002,0017,0018,0000
> >>
> >> Verify using efibootmgr -v again.
> >>
> >
> > I did. When it comes up and there is no usb stick available anymore, it
> > tries to
> > start PXE over IPv4, IPv6 afterwards.
> > In the end the grub cli is displayed waiting for input.
> > Also I am not sure, what "ubuntu" means in this case: Both are ubuntu - one
> > at
> > the stick, the other on the hd. How can
> > I find out which one is the correct synonym for the installation I like to
> > start
> > into? Could grub_uefi also be what I want? How to figure out?
>
> Sorry, I assumed you were booted into the "correct" system. When I
> said "ubuntu" I meant boot menu entry displayed by efibootmgr - there
> is only one titled "ubuntu" there.
>
> Output of efibootmgr shows two hard disks - one contains Windows and
> something titled "ubuntu", another contains "arch_grub" and
> "grub_uefi". The behavior you describe agrees with efibootmgr output
> and GRUB CLI should come from "arch_grub".
>
> I assumed "ubuntu" would be the right choice here because I find it
> very strange to have Windows installed on external USB stick and you
> never mentioned it as well. But let's check - boot into Linux (with
> USB stick inserted) and paste output of
>
> gdisk -l /dev/sda
> gdisk -l /dev/sdb
>

This is the output...

address@hidden:~# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.8

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): C3166089-F0FC-4D0D-8A28-92E2AA5D960A
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 3437 sectors (1.7 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048         1050623   512.0 MiB   EF00  
   2         1050624         1550335   244.0 MiB   8300  
   3         1550336      1953523711   930.8 GiB   8300  

 
address@hidden:~# gdisk -l /dev/sdb
GPT fdisk (gdisk) version 0.8.8

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 114687999 sectors, 54.7 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 5D6A75BF-2F7B-4294-8E79-0AFAAF13399F
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 114687965
Partitions will be aligned on 2048-sector boundaries
Total free space is 4028 sectors (2.0 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048         1050623   512.0 MiB   EF00  
   2         1050624        81342463   38.3 GiB    8300  
   3        81342464       114685951   15.9 GiB    8200