我不想丢失所有文件，因为我已经尝试使用实时 USB 修复它，但无法修复我的安装。在加载 Ubuntu 20.04 时获取以下文本：
mount: mounting/dev on /root/dev failed: No such file or directory
mount: mounting/dev on /root/dev failed: No such file or directory
run-init: can't execute '/sbin/init': No such fileor directory
run-init: can't execute '/etc/init': No such file or directory
run-init: can't execute '/bin/init': No such file or directory
run-init: can't execute '/bin/sh': No such file or directory
run-init: can't execute '': No such file or directory
No init found. Try passing init=bootarg.
我已经使用了启动修复实用程序；我收到以下信息：
============================== Boot Info Summary ===============================
=> No boot loader is installed in the MBR of /dev/mmcblk0.
=> Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sda.
mmcblk0p1: _____________________________________________________________________
File system: vfat
Boot sector type: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /efi/BOOT/fbx64.efi /efi/BOOT/mmx64.efi
/efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi
/efi/ubuntu/shimx64.efi /efi/ubuntu/grub.cfg
mmcblk0p2: _____________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files: /boot/grub/grub.cfg
sda1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 6.04
Boot sector info: Syslinux looks at sector 32776 of /dev/sda1 for its
second stage. The integrity check of Syslinux failed.
No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux.cfg
/efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi /ldlinux.sys
================================ 1 OS detected =================================
OS#1: Linux on mmcblk0p2
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
Live-session OS is Ubuntu 64-bit (Ubuntu 20.04 LTS, focal, x86_64)
===================================== UEFI =====================================
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot enabled.
efibootmgr -v
BootCurrent: 0014
Timeout: 2 seconds
BootOrder: 0001,0000,0012,0013,0014,0015,0016
Boot0000* Windows Boot Manager HD(1,GPT,1202260b-16ac-4f21-a9bd-0e7a3112609a,0x800,0x100000)/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.}....................
Boot0001* ubuntu HD(1,GPT,1202260b-16ac-4f21-a9bd-0e7a3112609a,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011 Boot Menu FvFile(86488440-41bb-42c7-93ac-450fbf7766bf)
Boot0012* ATA HDD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f600)
Boot0013* eMMC Card: SanDisk iNAND 128GB PciRoot(0x0)/Pci(0x1c,0x0)/eMMC(0)/Ctrl(0x0)c.J8.p[H...S....
Boot0014* USB HDD: Generic Flash Disk PciRoot(0x0)/Pci(0x15,0x0)/USB(0,0)3.!..3.G..A.....
Boot0015* USB CD: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0016* USB LAN: VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,e854bca4cae7704ca322b00da0376322)
bed45d1c9554cea09924d3814cb7c446 mmcblk0p1/BOOT/fbx64.efi
4487628005555bfd4a4c0a47211e0700 mmcblk0p1/BOOT/mmx64.efi
98bea152fadd26c4e9136916f6cc32a8 mmcblk0p1/ubuntu/grubx64.efi
4487628005555bfd4a4c0a47211e0700 mmcblk0p1/ubuntu/mmx64.efi
f7a57b08bc7c1c85417ae4cea582d1d4 mmcblk0p1/ubuntu/shimx64.efi
f7a57b08bc7c1c85417ae4cea582d1d4 mmcblk0p1/BOOT/BOOTX64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
mmcblk0 : is-GPT, no-BIOSboot, has---ESP, not-usb, mmc-disk, has-os, 1 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
mmcblk0p1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
mmcblk0p2 : is-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, grubenv-ng, noupdategrub, farbios
Partitions info (2/3): _________________________________________________________
mmcblk0p1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
mmcblk0p2 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
mmcblk0p1 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, mmcblk0
mmcblk0p2 : not-sepboot, with-boot, part-has-no-fstab, not-sep-usr, with--usr, part-has-no-fstab, std-grub.d, mmcblk0
fdisk -l (filtered): ___________________________________________________________
Disk mmcblk0: 116.49 GiB, 125069950976 bytes, 244277248 sectors
Disk identifier: A0500CFF-8183-4109-BC05-AB937C067B0A
Start End Sectors Size Type
mmcblk0p1 2048 1050623 1048576 512M EFI System
mmcblk0p2 1050624 244275199 243224576 116G Linux filesystem
Disk sda: 7.51 GiB, 8053063680 bytes, 15728640 sectors
Disk identifier: 0x42a1f8f1
Boot Start End Sectors Size Id Type
sda1 * 2048 15728639 15726592 7.5G c W95 FAT32 (LBA)
parted -lm (filtered): _________________________________________________________
sda:8053MB:scsi:512:512:msdos:Generic Flash Disk:;
1:1049kB:8053MB:8052MB:fat32::boot, lba;
mmcblk0:125GB:sd/mmc:512:512:gpt:MMC DF4128:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:125GB:125GB:ext4::;
mmcblk0boot0:4194kB:sd/mmc:512:512:unknown:Generic SD/MMC Storage Card:;
mmcblk0boot1:4194kB:sd/mmc:512:512:unknown:Generic SD/MMC Storage Card:;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
└─sda1 vfat E61D-C222 42a1f8f1-01 UBUNTU 20_0
mmcblk0
├─mmcblk0p1 vfat 6B9A-9D40 1202260b-16ac-4f21-a9bd-0e7a3112609a EFI System Partition
└─mmcblk0p2 ext4 cd3c01aa-8414-42d6-9a10-d85128d31004 85d1fb8d-4af0-4b54-b293-193597e2e0ed
mmcblk0boot0
mmcblk0boot1
df (filtered): _________________________________________________________________
Avail Use% Mounted on
mmcblk0p1 503.2M 2% /mnt/boot-sav/mmcblk0p1
mmcblk0p2 100.8G 6% /mnt/boot-sav/mmcblk0p2
sda1 5G 34% /cdrom
Mount options: __________________________________________________________________
mmcblk0p1 rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
mmcblk0p2 rw,relatime
sda1 ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
=================== mmcblk0p1/efi/ubuntu/grub.cfg (filtered) ===================
search.fs_uuid cd3c01aa-8414-42d6-9a10-d85128d31004 root
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
=================== mmcblk0p2/boot/grub/grub.cfg (filtered) ====================
Ubuntu cd3c01aa-8414-42d6-9a10-d85128d31004
Ubuntu, with Linux 5.4.0-29-generic cd3c01aa-8414-42d6-9a10-d85128d31004
Ubuntu, with Linux 5.4.0-28-generic cd3c01aa-8414-42d6-9a10-d85128d31004
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
================= mmcblk0p2: Location of files loaded by Grub ==================
GiB - GB File Fragment(s)
81.064418793 = 87.042256896 boot/grub/grub.cfg 2
6.972770691 = 7.486955520 boot/vmlinuz 1
41.379020691 = 44.430385152 boot/vmlinuz-5.4.0-28-generic 1
6.972770691 = 7.486955520 boot/vmlinuz-5.4.0-29-generic 1
41.379020691 = 44.430385152 boot/vmlinuz.old 1
41.639976501 = 44.710584320 boot/initrd.img 4
41.632968903 = 44.703059968 boot/initrd.img-5.4.0-28-generic 2
41.639976501 = 44.710584320 boot/initrd.img-5.4.0-29-generic 4
41.632968903 = 44.703059968 boot/initrd.img.old 2
====================== sda1/boot/grub/grub.cfg (filtered) ======================
Ubuntu
Ubuntu (safe graphics)
OEM install (for manufacturers)
Boot from next volume
UEFI Firmware Settings
========================= sda1/syslinux.cfg (filtered) =========================
DEFAULT loadconfig
LABEL loadconfig
CONFIG /isolinux/isolinux.cfg
APPEND /isolinux/
==================== sda1: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
================== sda1: Location of files loaded by Syslinux ==================
GiB - GB File Fragment(s)
?? = ?? syslinux.cfg 1
?? = ?? ldlinux.sys 1
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would not act on the boot.
任何帮助都将受到赞赏。