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Groups > linux.debian.user > #189569

Re: BIOS Can Not Find Disk

From David Christensen <dpchrist@holgerdanske.com>
Newsgroups linux.debian.user
Subject Re: BIOS Can Not Find Disk
Date 2017-12-05 07:00 +0100
Message-ID <uTeqR-6Ja-5@gated-at.bofh.it> (permalink)
References (4 earlier) <uStrX-1X9-1@gated-at.bofh.it> <uSRkB-zY-3@gated-at.bofh.it> <uSRuh-G8-3@gated-at.bofh.it> <uT0QW-6xY-9@gated-at.bofh.it> <uTanf-4a6-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 12/04/17 17:34, David Christensen wrote:
> That's why I plan to try again with the simplest automagic partitioning 
> and see what happens.

I wiped the SSD, ran d-i, and chose "Partitioning method" -> "Guided - 
use entire disk and set up encrypted LVM", which produced:

     	LVM VG debian-vg, LV home - 3.5 GB Linux device-mapper (linear)
	     #1      3.5 GB     f  ext4          /home
     	LVM VG debian-vg, LV root - 2.0 GB Linux device-mapper (linear)
	     #1      2.0 GB     f  ext4          /
     	LVM VG debian-vg, LV swap_1 - 8.5 GB Linux device-mapper (linear)
	     #1      8.5 GB     f  swap          swap
     	LVM VG debian-vg, LV tmp - 255.9 MB Linux device-mapper (linear)
	     #1    255.9 MB     f  ext4          /tmp
     	LVM VG debian-vg, LV tmp - 998.2 MB Linux device-mapper (linear)
	     #1    998.2 MB     f  ext4          /var
	Encrypted volume (sda3_crypt) - 15.2 GB Linux device-mapper (crypt)
	     #1     15.2 GB     K  lvm
	SCSI3 (0,0,0) (sda) - 16.0 GB ATA SAMSUNG SSD UM41
	             1.0 MB        FREE SPACE
	     #1    536.9 MB  B  F  ESP
	     #2    255.9 MB     F  ext2          /boot
	     #3     15.2 GB     K  crypto        (sda3_crypt)
	            73.2 kB        FREE SPACE

I tried changing swap size, but that led to prompts for actions that 
might break things.  So, I just accepted the above and moved on.


d-i completed without errors.  :-)


The disk boots to the GRUB menu.  Letting that time out, LUKS passphrase 
prompt is displayed.  Entering the passphrase, the login prompt is 
displayed.  :-)


An SSH session follows.


As for "how does it boot with UEFI, GPT, and GRUB?", my vague guess is:

1.  There is no 16-bit 8086 first stage boot loader code in sector 0 of 
the SSD -- see 'gpart -d -vvv /dev/sda' output, below.  The motherboard 
firmware doesn't use this in UEFI mode.

2.  There is a "protective MBR" in sector 0 of the SSD -- see 'fdisk -t 
mbr -l /dev/sda' output, below.  I don't know if UEFI firmware looks at 
this.

3.  The firmware finds and reads the GPT partition table on the SSD.

4.  The firmware finds the first GPT partition and file system, which 
look "right" for EFI boot images.

5.  The firmware reads this file system and finds only one file, which 
it loads and runs (starting GRUB):

         /EFI/debian/grubx64.efi

(If there were more than one choice, my guess is that I'd have to 
pre-select one in the CMOS setup, or perhaps have to select one from a 
menu at the end of POST?)

6.  GRUB finds the second GPT partition and file system, which looks 
"right" for GRUB, reads the file system, locates the appropriate files 
(notably /boot/grub/grub.cfg), and boots the system.


Again -- are there any other commands I should run that readers might 
find interesting?


David

--

root@debian:~# cat /etc/debian_version
9.2


root@debian:~# uname -a
Linux debian 4.9.0-4-amd64 #1 SMP Debian 4.9.51-1 (2017-09-28) x86_64 
GNU/Linux


root@debian:~# lsblk
NAME                    MAJ:MIN RM  SIZE RO TYPE  MOUNTPOINT
sda                       8:0    0 14.9G  0 disk
|-sda1                    8:1    0  512M  0 part  /boot/efi
|-sda2                    8:2    0  244M  0 part  /boot
`-sda3                    8:3    0 14.2G  0 part
   `-sda3_crypt          254:0    0 14.2G  0 crypt
     |-debian--vg-root   254:1    0  1.9G  0 lvm   /
     |-debian--vg-var    254:2    0  952M  0 lvm   /var
     |-debian--vg-swap_1 254:3    0  7.9G  0 lvm   [SWAP]
     |-debian--vg-tmp    254:4    0  244M  0 lvm   /tmp
     `-debian--vg-home   254:5    0  3.2G  0 lvm   /home
sr0                      11:0    1 1024M  0 rom


root@debian:~# parted /dev/sda u s p free
Model: ATA SAMSUNG SSD UM41 (scsi)
Disk /dev/sda: 31277232s
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start      End        Size       File system  Name  Flags
         34s        2047s      2014s      Free Space
  1      2048s      1050623s   1048576s   fat32              boot, esp
  2      1050624s   1550335s   499712s    ext2
  3      1550336s   31277055s  29726720s
         31277056s  31277198s  143s       Free Space


root@debian:~# gpart -d -vvv /dev/sda

dev(/dev/sda) mss(512) chs(1946/255/63)(LBA) #s(31277232) size(15272mb)
Primary partition(1)
    type: 238(0xEE)(UNKNOWN)
    size: 15272mb #s(31277231) s(1-31277231)
    chs:  (0/0/1)-(1023/254/63)d (0/0/2)-(1946/233/63)r
    hex:  00 00 01 00 EE FE FF FF 01 00 00 00 AF 40 DD 01

Primary partition(2)
    type: 000(0x00)(unused)
    size: 0mb #s(0) s(0-0)
    chs:  (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r
    hex:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Primary partition(3)
    type: 000(0x00)(unused)
    size: 0mb #s(0) s(0-0)
    chs:  (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r
    hex:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Primary partition(4)
    type: 000(0x00)(unused)
    size: 0mb #s(0) s(0-0)
    chs:  (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r
    hex:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


dev(/dev/sda) master boot record (w/o partition table):
    0000:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0010:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0020:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0030:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0040:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0050:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0060:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0070:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0080:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0090:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    00A0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    00B0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    00C0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    00D0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    00E0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    00F0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0100:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0110:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0120:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0130:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0140:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0150:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0160:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0170:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0180:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    0190:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
    01A0:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
            .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .


root@debian:~# gdisk -l /dev/sda
GPT fdisk (gdisk) version 1.0.1

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

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 31277232 sectors, 14.9 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 1423ACF9-1BA2-404D-A4FC-52576318EFCF
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 31277198
Partitions will be aligned on 2048-sector boundaries
Total free space is 2157 sectors (1.1 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        31277055   14.2 GiB    8300



root@debian:~# fdisk -t mbr -l /dev/sda
Disk /dev/sda: 14.9 GiB, 16013942784 bytes, 31277232 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
Disklabel type: dos
Disk identifier: 0x00000000

Device     Boot Start      End  Sectors  Size Id Type
/dev/sda1           1 31277231 31277231 14.9G ee GPT


root@debian:~# fdisk -l /dev/sda
Disk /dev/sda: 14.9 GiB, 16013942784 bytes, 31277232 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
Disklabel type: gpt
Disk identifier: 1423ACF9-1BA2-404D-A4FC-52576318EFCF

Device       Start      End  Sectors  Size Type
/dev/sda1     2048  1050623  1048576  512M EFI System
/dev/sda2  1050624  1550335   499712  244M Linux filesystem
/dev/sda3  1550336 31277055 29726720 14.2G Linux filesystem


root@debian:~# lvm lvdisplay
   --- Logical volume ---
   LV Path                /dev/debian-vg/root
   LV Name                root
   VG Name                debian-vg
   LV UUID                iU6J9C-MCbP-RXkU-7gpt-zzu3-3nW2-8ht7OB
   LV Write Access        read/write
   LV Creation host, time debian, 2017-12-04 20:05:01 -0800
   LV Status              available
   # open                 1
   LV Size                1.86 GiB
   Current LE             476
   Segments               1
   Allocation             inherit
   Read ahead sectors     auto
   - currently set to     256
   Block device           254:1

   --- Logical volume ---
   LV Path                /dev/debian-vg/var
   LV Name                var
   VG Name                debian-vg
   LV UUID                GlrAnx-fl2t-MwfR-gCe1-oNFK-75A5-XxF9Ew
   LV Write Access        read/write
   LV Creation host, time debian, 2017-12-04 20:05:01 -0800
   LV Status              available
   # open                 1
   LV Size                952.00 MiB
   Current LE             238
   Segments               1
   Allocation             inherit
   Read ahead sectors     auto
   - currently set to     256
   Block device           254:2

   --- Logical volume ---
   LV Path                /dev/debian-vg/swap_1
   LV Name                swap_1
   VG Name                debian-vg
   LV UUID                fsSVAk-qJxx-r5oO-nAzf-V7tD-P68K-j3PSg0
   LV Write Access        read/write
   LV Creation host, time debian, 2017-12-04 20:05:01 -0800
   LV Status              available
   # open                 2
   LV Size                7.91 GiB
   Current LE             2026
   Segments               1
   Allocation             inherit
   Read ahead sectors     auto
   - currently set to     256
   Block device           254:3

   --- Logical volume ---
   LV Path                /dev/debian-vg/tmp
   LV Name                tmp
   VG Name                debian-vg
   LV UUID                NX7oty-RbhV-LKLQ-mpUh-jZSy-Beo8-N0UKfJ
   LV Write Access        read/write
   LV Creation host, time debian, 2017-12-04 20:05:01 -0800
   LV Status              available
   # open                 1
   LV Size                244.00 MiB
   Current LE             61
   Segments               1
   Allocation             inherit
   Read ahead sectors     auto
   - currently set to     256
   Block device           254:4

   --- Logical volume ---
   LV Path                /dev/debian-vg/home
   LV Name                home
   VG Name                debian-vg
   LV UUID                Q13SCi-BKfV-LF04-0UPz-0lxg-Wb8X-i0LvB5
   LV Write Access        read/write
   LV Creation host, time debian, 2017-12-04 20:05:01 -0800
   LV Status              available
   # open                 1
   LV Size                3.23 GiB
   Current LE             827
   Segments               1
   Allocation             inherit
   Read ahead sectors     auto
   - currently set to     256
   Block device           254:5


root@debian:~# df
Filesystem                  1K-blocks   Used Available Use% Mounted on
udev                          4033908      0   4033908   0% /dev
tmpfs                          809232   8928    800304   2% /run
/dev/mapper/debian--vg-root   1886280 688284   1084128  39% /
tmpfs                         4046156      0   4046156   0% /dev/shm
tmpfs                            5120      0      5120   0% /run/lock
tmpfs                         4046156      0   4046156   0% /sys/fs/cgroup
/dev/mapper/debian--vg-home   3268656  11604   3071300   1% /home
/dev/mapper/debian--vg-tmp     237861   2057    219216   1% /tmp
/dev/mapper/debian--vg-var     943128 194612    683392  23% /var
/dev/sda2                      241965  38997    190476  17% /boot
/dev/sda1                      523248    132    523116   1% /boot/efi
tmpfs                          809228      0    809228   0% /run/user/1000


root@debian:~# mount | grep sda1
/dev/sda1 on /boot/efi type vfat 
(rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro)


root@debian:~# tree /boot
/boot
|-- System.map-4.9.0-4-amd64
|-- config-4.9.0-4-amd64
|-- efi
|   `-- EFI
|       `-- debian
|           `-- grubx64.efi
|-- grub
|   |-- fonts
|   |   `-- unicode.pf2
|   |-- grub.cfg
|   |-- grubenv
|   |-- locale
|   |   |-- ast.mo
|   |   |-- ca.mo
|   |   |-- da.mo
|   |   |-- de.mo
|   |   |-- de@hebrew.mo
|   |   |-- de_CH.mo
|   |   |-- en@arabic.mo
|   |   |-- en@cyrillic.mo
|   |   |-- en@greek.mo
|   |   |-- en@hebrew.mo
|   |   |-- en@piglatin.mo
|   |   |-- en@quot.mo
|   |   |-- eo.mo
|   |   |-- es.mo
|   |   |-- fi.mo
|   |   |-- fr.mo
|   |   |-- gl.mo
|   |   |-- hu.mo
|   |   |-- id.mo
|   |   |-- it.mo
|   |   |-- ja.mo
|   |   |-- lt.mo
|   |   |-- nb.mo
|   |   |-- nl.mo
|   |   |-- pa.mo
|   |   |-- pl.mo
|   |   |-- pt_BR.mo
|   |   |-- ru.mo
|   |   |-- sl.mo
|   |   |-- sr.mo
|   |   |-- sv.mo
|   |   |-- tr.mo
|   |   |-- uk.mo
|   |   |-- vi.mo
|   |   |-- zh_CN.mo
|   |   `-- zh_TW.mo
|   |-- unicode.pf2
|   `-- x86_64-efi
|       |-- acpi.mod
|       |-- adler32.mod
|       |-- affs.mod
|       |-- afs.mod
|       |-- ahci.mod
|       |-- all_video.mod
|       |-- aout.mod
|       |-- appleldr.mod
|       |-- archelp.mod
|       |-- at_keyboard.mod
|       |-- ata.mod
|       |-- backtrace.mod
|       |-- bfs.mod
|       |-- bitmap.mod
|       |-- bitmap_scale.mod
|       |-- blocklist.mod
|       |-- boot.mod
|       |-- bsd.mod
|       |-- bswap_test.mod
|       |-- btrfs.mod
|       |-- bufio.mod
|       |-- cat.mod
|       |-- cbfs.mod
|       |-- cbls.mod
|       |-- cbmemc.mod
|       |-- cbtable.mod
|       |-- cbtime.mod
|       |-- chain.mod
|       |-- cmdline_cat_test.mod
|       |-- cmp.mod
|       |-- cmp_test.mod
|       |-- command.lst
|       |-- configfile.mod
|       |-- core.efi
|       |-- cpio.mod
|       |-- cpio_be.mod
|       |-- cpuid.mod
|       |-- crc64.mod
|       |-- crypto.lst
|       |-- crypto.mod
|       |-- cryptodisk.mod
|       |-- cs5536.mod
|       |-- ctz_test.mod
|       |-- date.mod
|       |-- datehook.mod
|       |-- datetime.mod
|       |-- disk.mod
|       |-- diskfilter.mod
|       |-- div.mod
|       |-- div_test.mod
|       |-- dm_nv.mod
|       |-- echo.mod
|       |-- efi_gop.mod
|       |-- efi_uga.mod
|       |-- efifwsetup.mod
|       |-- efinet.mod
|       |-- ehci.mod
|       |-- elf.mod
|       |-- eval.mod
|       |-- exfat.mod
|       |-- exfctest.mod
|       |-- ext2.mod
|       |-- extcmd.mod
|       |-- fat.mod
|       |-- file.mod
|       |-- fixvideo.mod
|       |-- font.mod
|       |-- fs.lst
|       |-- fshelp.mod
|       |-- functional_test.mod
|       |-- gcry_arcfour.mod
|       |-- gcry_blowfish.mod
|       |-- gcry_camellia.mod
|       |-- gcry_cast5.mod
|       |-- gcry_crc.mod
|       |-- gcry_des.mod
|       |-- gcry_dsa.mod
|       |-- gcry_idea.mod
|       |-- gcry_md4.mod
|       |-- gcry_md5.mod
|       |-- gcry_rfc2268.mod
|       |-- gcry_rijndael.mod
|       |-- gcry_rmd160.mod
|       |-- gcry_rsa.mod
|       |-- gcry_seed.mod
|       |-- gcry_serpent.mod
|       |-- gcry_sha1.mod
|       |-- gcry_sha256.mod
|       |-- gcry_sha512.mod
|       |-- gcry_tiger.mod
|       |-- gcry_twofish.mod
|       |-- gcry_whirlpool.mod
|       |-- geli.mod
|       |-- gettext.mod
|       |-- gfxmenu.mod
|       |-- gfxterm.mod
|       |-- gfxterm_background.mod
|       |-- gfxterm_menu.mod
|       |-- gptsync.mod
|       |-- grub.efi
|       |-- gzio.mod
|       |-- halt.mod
|       |-- hashsum.mod
|       |-- hdparm.mod
|       |-- hello.mod
|       |-- help.mod
|       |-- hexdump.mod
|       |-- hfs.mod
|       |-- hfsplus.mod
|       |-- hfspluscomp.mod
|       |-- http.mod
|       |-- iorw.mod
|       |-- iso9660.mod
|       |-- jfs.mod
|       |-- jpeg.mod
|       |-- keylayouts.mod
|       |-- keystatus.mod
|       |-- ldm.mod
|       |-- legacy_password_test.mod
|       |-- legacycfg.mod
|       |-- linux.mod
|       |-- linux16.mod
|       |-- linuxefi.mod
|       |-- loadbios.mod
|       |-- loadenv.mod
|       |-- loopback.mod
|       |-- ls.mod
|       |-- lsacpi.mod
|       |-- lsefi.mod
|       |-- lsefimmap.mod
|       |-- lsefisystab.mod
|       |-- lsmmap.mod
|       |-- lspci.mod
|       |-- lssal.mod
|       |-- luks.mod
|       |-- lvm.mod
|       |-- lzopio.mod
|       |-- macbless.mod
|       |-- macho.mod
|       |-- mdraid09.mod
|       |-- mdraid09_be.mod
|       |-- mdraid1x.mod
|       |-- memdisk.mod
|       |-- memrw.mod
|       |-- minicmd.mod
|       |-- minix.mod
|       |-- minix2.mod
|       |-- minix2_be.mod
|       |-- minix3.mod
|       |-- minix3_be.mod
|       |-- minix_be.mod
|       |-- mmap.mod
|       |-- moddep.lst
|       |-- modinfo.sh
|       |-- morse.mod
|       |-- mpi.mod
|       |-- msdospart.mod
|       |-- mul_test.mod
|       |-- multiboot.mod
|       |-- multiboot2.mod
|       |-- nativedisk.mod
|       |-- net.mod
|       |-- newc.mod
|       |-- nilfs2.mod
|       |-- normal.mod
|       |-- ntfs.mod
|       |-- ntfscomp.mod
|       |-- odc.mod
|       |-- offsetio.mod
|       |-- ohci.mod
|       |-- part_acorn.mod
|       |-- part_amiga.mod
|       |-- part_apple.mod
|       |-- part_bsd.mod
|       |-- part_dfly.mod
|       |-- part_dvh.mod
|       |-- part_gpt.mod
|       |-- part_msdos.mod
|       |-- part_plan.mod
|       |-- part_sun.mod
|       |-- part_sunpc.mod
|       |-- partmap.lst
|       |-- parttool.lst
|       |-- parttool.mod
|       |-- password.mod
|       |-- password_pbkdf2.mod
|       |-- pata.mod
|       |-- pbkdf2.mod
|       |-- pbkdf2_test.mod
|       |-- pcidump.mod
|       |-- play.mod
|       |-- png.mod
|       |-- priority_queue.mod
|       |-- probe.mod
|       |-- procfs.mod
|       |-- progress.mod
|       |-- raid5rec.mod
|       |-- raid6rec.mod
|       |-- random.mod
|       |-- read.mod
|       |-- reboot.mod
|       |-- regexp.mod
|       |-- reiserfs.mod
|       |-- relocator.mod
|       |-- romfs.mod
|       |-- scsi.mod
|       |-- search.mod
|       |-- search_fs_file.mod
|       |-- search_fs_uuid.mod
|       |-- search_label.mod
|       |-- serial.mod
|       |-- setjmp.mod
|       |-- setjmp_test.mod
|       |-- setpci.mod
|       |-- sfs.mod
|       |-- shift_test.mod
|       |-- signature_test.mod
|       |-- sleep.mod
|       |-- sleep_test.mod
|       |-- spkmodem.mod
|       |-- squash4.mod
|       |-- syslinuxcfg.mod
|       |-- tar.mod
|       |-- terminal.lst
|       |-- terminal.mod
|       |-- terminfo.mod
|       |-- test.mod
|       |-- test_blockarg.mod
|       |-- testload.mod
|       |-- testspeed.mod
|       |-- tftp.mod
|       |-- tga.mod
|       |-- time.mod
|       |-- tr.mod
|       |-- trig.mod
|       |-- true.mod
|       |-- udf.mod
|       |-- ufs1.mod
|       |-- ufs1_be.mod
|       |-- ufs2.mod
|       |-- uhci.mod
|       |-- usb.mod
|       |-- usb_keyboard.mod
|       |-- usbms.mod
|       |-- usbserial_common.mod
|       |-- usbserial_ftdi.mod
|       |-- usbserial_pl2303.mod
|       |-- usbserial_usbdebug.mod
|       |-- usbtest.mod
|       |-- verify.mod
|       |-- video.lst
|       |-- video.mod
|       |-- video_bochs.mod
|       |-- video_cirrus.mod
|       |-- video_colors.mod
|       |-- video_fb.mod
|       |-- videoinfo.mod
|       |-- videotest.mod
|       |-- videotest_checksum.mod
|       |-- xfs.mod
|       |-- xnu.mod
|       |-- xnu_uuid.mod
|       |-- xnu_uuid_test.mod
|       |-- xzio.mod
|       |-- zfs.mod
|       |-- zfscrypt.mod
|       `-- zfsinfo.mod
|-- initrd.img-4.9.0-4-amd64
|-- lost+found
`-- vmlinuz-4.9.0-4-amd64

8 directories, 312 files


root@debian:~# ls -l /boot/efi/EFI/debian/grubx64.efi
-rwx------ 1 root root 121856 Dec  4 20:23 /boot/efi/EFI/debian/grubx64.efi


root@debian:~# file /boot/efi/EFI/debian/grubx64.efi
/boot/efi/EFI/debian/grubx64.efi: PE32+ executable (EFI application) 
x86-64 (stripped to external PDB), for MS Windows

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Thread

BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-01 20:00 +0100
  Re: BIOS Can Not Find Disk "Thomas Schmitt" <scdbackup@gmx.net> - 2017-12-01 21:00 +0100
    Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-02 19:30 +0100
      Re: BIOS Can Not Find Disk "Thomas Schmitt" <scdbackup@gmx.net> - 2017-12-02 20:30 +0100
  Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-02 03:00 +0100
    Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-02 05:10 +0100
      Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-02 20:40 +0100
        Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-03 04:50 +0100
          Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-04 00:40 +0100
          Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-04 06:20 +0100
            Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-04 06:30 +0100
              Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-04 15:40 +0100
                Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-05 01:50 +0100
              Re: BIOS Can Not Find Disk David Wright <deblis@lionunicorn.co.uk> - 2017-12-04 16:30 +0100
                Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-05 02:40 +0100
                Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-05 07:00 +0100
                Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-06 00:20 +0100
                Re: BIOS Can Not Find Disk David Christensen <dpchrist@holgerdanske.com> - 2017-12-07 07:00 +0100
                Re: BIOS Can Not Find Disk David Wright <deblis@lionunicorn.co.uk> - 2017-12-05 23:30 +0100
            Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-05 22:50 +0100
        Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-04 03:40 +0100
      Re: BIOS Can Not Find Disk Michael Lange <klappnase@freenet.de> - 2017-12-02 22:40 +0100
        Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-03 00:20 +0100
          Re: BIOS Can Not Find Disk Michael Lange <klappnase@freenet.de> - 2017-12-03 00:40 +0100
            Re: BIOS Can Not Find Disk deloptes <deloptes@gmail.com> - 2017-12-03 05:50 +0100
          Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-03 11:00 +0100
            Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-03 12:50 +0100
              Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-03 18:40 +0100
                Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-03 19:10 +0100
                Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-03 20:40 +0100
                Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-03 20:20 +0100
                Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2017-12-03 22:00 +0100
                Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-03 23:00 +0100
                Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-03 23:50 +0100
                Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-04 00:50 +0100
                Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-05 00:50 +0100
                Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-05 03:40 +0100
                Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-06 23:20 +0100
                Re: BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-07 00:10 +0100
                Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-07 21:50 +0100
                Re: (OT) BIOS Can Not Find Disk Felix Miata <mrmazda@earthlink.net> - 2017-12-08 00:10 +0100
      Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-12-03 11:10 +0100
        Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2018-02-21 04:10 +0100
          Re: BIOS Can Not Find Disk Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-02-21 23:20 +0100
            Re: BIOS Can Not Find Disk Dan Norton <dnorton@mindspring.com> - 2018-02-22 02:20 +0100

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