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Hello,
I try to get a dual boot with arch and windows 10 working, using GRUB as the bood loader.
Since os-prober didn't find the windows partition I added the windows entry myself, following the Arch Wiki entry of GRUB.
Arch is working fine, but when I try to boot Windows, I get this error right after choosing Windows in the GRUB menu:
error: file '/EFI/Microsoft/Boot/bootmgfw.efi' not found The bootmgfw.efi file is in this directory: /boot/EFI/Microsoft/Boot/bootmgfw.efi
The grub.cfg file is in this directory: /boot/EFI/grub/grub.cfg
This is the windows entry in the grub.cfg:
if [ "${grub_platform}" == "efi" ]; then
menuentry "Microsoft Windows Vista/7/8/8.1 UEFI-GPT" {
insmod part_gpt
insmod fat
insmod search_fs_uuid
insmod chain
search --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 C675-4CC5
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
fiand this is my 40_custom file for grub:
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "System shutdown" {
echo "System shutting down..."
halt
}
menuentry "System restart" {
echo "System rebooting..."
reboot
}
menuentry "Firmware setup" {
fwsetup
}
if [ "${grub_platform}" == "efi" ]; then
menuentry "Microsoft Windows Vista/7/8/8.1 UEFI-GPT" {
insmod part_gpt
insmod fat
insmod search_fs_uuid
insmod chain
search --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 C675-4CC5
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
fiHere is my partition configuration
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 238.5G 0 disk
├─sda1 8:1 0 260M 0 part /boot/efi
├─sda2 8:2 0 16M 0 part
├─sda3 8:3 0 65.8G 0 part
├─sda4 8:4 0 146.5G 0 part /
├─sda5 8:5 0 25G 0 part
└─sda6 8:6 0 1000M 0 part
$ parted --list
Model: ATA SAMSUNG MZYTY256 (scsi)
Disk /dev/sda: 256GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 274MB 273MB fat32 EFI system partition bios_grub
2 274MB 290MB 16.8MB Microsoft reserved partition msftres
3 290MB 70.9GB 70.6GB ntfs Basic data partition msftdata
4 70.9GB 228GB 157GB ext4 Basic data partition msftdata
5 228GB 255GB 26.8GB ntfs Basic data partition msftdata
6 255GB 256GB 1049MB ntfs Basic data partition hidden, diagAnd the efibootmgr info:
$ efibootmgr -v
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0000,0002,2003,2001,2002
Boot0000* grub HD(1,GPT,40e42dff-1daa-4dbd-91e0-236f87bbfdb0,0x800,0x82000)/File(\EFI\grub\grubx64.efi)
Boot0002* EFI Hard Drive (SAMSUNG MZYTY256HDHP-000L2) PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,40e42dff-1daa-4dbd-91e0-236f87bbfdb0,0x800,0x82000)RC
Boot0003* EFI Network 0 for IPv4 (FC-45-96-50-02-74) PciRoot(0x0)/Pci(0x1c,0x4)/Pci(0x0,0x0)/MAC(fc4596500274,0)/IPv4(0.0.0.00.0.0.0,0,0)RC
Boot0004* EFI Network 0 for IPv6 (FC-45-96-50-02-74) PciRoot(0x0)/Pci(0x1c,0x4)/Pci(0x0,0x0)/MAC(fc4596500274,0)/IPv6([::]:<->[::]:,0,0)RC
Boot2001* EFI USB Device RC
Boot2002* EFI DVD/CDROM RC
Boot2003* EFI Network RCAny help would be great since I'm trying to fix this already for quite a while.
bootinfoscript
I found this script, I hope it could help
Boot Info Script 0.61 [1 April 2012]
============================= Boot Info Summary: ===============================
=> No boot loader is installed in the MBR of /dev/sda.
sda1: __________________________________________________________________________
File system: BIOS Boot partition
Boot sector type: Unknown
Boot sector info:
sda2: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
Mounting failed: mount: /tmp/BootInfo-eZQrYlcl/sda2: unknown filesystem type ''.
sda3: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /Windows/System32/winload.exe
sda4: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Arch Linux ()
Boot files: /etc/fstab
sda5: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda6: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 238.5 GiB, 256060514304 bytes, 500118192 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
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 1 500,118,191 500,118,191 ee GPT
GUID Partition Table detected.
Partition Start Sector End Sector # of Sectors System
/dev/sda1 2,048 534,527 532,480 BIOS Boot partition
/dev/sda2 534,528 567,295 32,768 Microsoft Reserved Partition (Windows)
/dev/sda3 567,296 138,440,703 137,873,408 Data partition (Windows/Linux)
/dev/sda4 138,440,704 445,638,655 307,197,952 Data partition (Windows/Linux)
/dev/sda5 445,640,704 498,069,503 52,428,800 Data partition (Windows/Linux)
/dev/sda6 498,069,504 500,117,503 2,048,000 Windows Recovery Environment (Windows)
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/sda1 C675-4CC5 vfat SYSTEM_DRV
/dev/sda2
/dev/sda3 286E76706E7636A2 ntfs Windows
/dev/sda4 b0c31b50-c336-4e3e-866b-be816a2fa200 ext4
/dev/sda5 889EA1809EA16800 ntfs LENOVO
/dev/sda6 2CEC7700EC76C39C ntfs WINRE_DRV
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sda1 /boot/efi vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
/dev/sda1 /boot vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
/dev/sda4 / ext4 (rw,relatime,data=ordered)
=============================== sda4/etc/fstab: ================================
--------------------------------------------------------------------------------
# /dev/sda4
UUID=b0c31b50-c336-4e3e-866b-be816a2fa200 / ext4 rw,relatime,data=ordered 0 1
# /dev/sda1 LABEL=SYSTEM_DRV
#UUID=C675-4CC5 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 2
# Increase size of /tmp, only do that if some annoying installation process does not work
tmpfs /tmp tmpfs size=8G 0 0
UUID=C675-4CC5 /boot vfat defaults 0 2
UUID=C675-4CC5 /boot/efi vfat defaults 0 1
--------------------------------------------------------------------------------
======================== Unknown MBRs/Boot Sectors/etc: ========================
Unknown BootLoader on sda1
00000000 eb 58 90 4d 53 44 4f 53 35 2e 30 00 02 08 fe 1b |.X.MSDOS5.0.....|
00000010 02 00 00 00 00 f8 00 00 3f 00 ff 00 00 08 00 00 |........?.......|
00000020 00 20 08 00 01 02 00 00 00 00 00 00 02 00 00 00 |. ..............|
00000030 01 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000040 80 01 29 c5 4c 75 c6 4e 4f 20 4e 41 4d 45 20 20 |..).Lu.NO NAME |
00000050 20 20 46 41 54 33 32 20 20 20 33 c9 8e d1 bc f4 | FAT32 3.....|
00000060 7b 8e c1 8e d9 bd 00 7c 88 56 40 88 4e 02 8a 56 |{......|.V@.N..V|
00000070 40 b4 41 bb aa 55 cd 13 72 10 81 fb 55 aa 75 0a |@.A..U..r...U.u.|
00000080 f6 c1 01 74 05 fe 46 02 eb 2d 8a 56 40 b4 08 cd |...t..F..-.V@...|
00000090 13 73 05 b9 ff ff 8a f1 66 0f b6 c6 40 66 0f b6 |.s......f...@f..|
000000a0 d1 80 e2 3f f7 e2 86 cd c0 ed 06 41 66 0f b7 c9 |...?.......Af...|
000000b0 66 f7 e1 66 89 46 f8 83 7e 16 00 75 39 83 7e 2a |f..f.F..~..u9.~*|
000000c0 00 77 33 66 8b 46 1c 66 83 c0 0c bb 00 80 b9 01 |.w3f.F.f........|
000000d0 00 e8 2c 00 e9 a8 03 a1 f8 7d 80 c4 7c 8b f0 ac |..,......}..|...|
000000e0 84 c0 74 17 3c ff 74 09 b4 0e bb 07 00 cd 10 eb |..t.<.t.........|
000000f0 ee a1 fa 7d eb e4 a1 7d 80 eb df 98 cd 16 cd 19 |...}...}........|
00000100 66 60 80 7e 02 00 0f 84 20 00 66 6a 00 66 50 06 |f`.~.... .fj.fP.|
00000110 53 66 68 10 00 01 00 b4 42 8a 56 40 8b f4 cd 13 |Sfh.....B.V@....|
00000120 66 58 66 58 66 58 66 58 eb 33 66 3b 46 f8 72 03 |fXfXfXfX.3f;F.r.|
00000130 f9 eb 2a 66 33 d2 66 0f b7 4e 18 66 f7 f1 fe c2 |..*f3.f..N.f....|
00000140 8a ca 66 8b d0 66 c1 ea 10 f7 76 1a 86 d6 8a 56 |..f..f....v....V|
00000150 40 8a e8 c0 e4 06 0a cc b8 01 02 cd 13 66 61 0f |@............fa.|
00000160 82 74 ff 81 c3 00 02 66 40 49 75 94 c3 42 4f 4f |.t.....f@Iu..BOO|
00000170 54 4d 47 52 20 20 20 20 00 00 00 00 00 00 00 00 |TMGR ........|
00000180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001a0 00 00 00 00 00 00 00 00 00 00 00 00 0d 0a 44 69 |..............Di|
000001b0 73 6b 20 65 72 72 6f 72 ff 0d 0a 50 72 65 73 73 |sk error...Press|
000001c0 20 61 6e 79 20 6b 65 79 20 74 6f 20 72 65 73 74 | any key to rest|
000001d0 61 72 74 0d 0a 00 00 00 00 00 00 00 00 00 00 00 |art.............|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 ac 01 b9 01 00 00 55 aa |..............U.|
00000200
=============================== StdErr Messages: ===============================
mdadm: No arrays found in config file or automaticallyLast edited by Cinbu (2018-02-06 11:47:17)
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Hello. Please read this post - https://bbs.archlinux.org/viewtopic.php?id=233827 - I had the same problem, initially windows wasn't found, and when it was, then grub couldn't load the windows boot manager for some reason, so I couldn't boot into Windows. I was dualbooting in BIOS-MBR though, but you seem to be dual booting in UEFI-GPT mode. Try installing ntfs-3g after you arch-chroot in the system by
pacman -S ntfs-3g then run os-prober and grub-mkconfig. Refer to this post, specifically to EDIT 4 and EDIT 5 to see how I solved my problem. Also, you have to mount your root partition to /mnt and the Windows partition where the windows boot manager is present, which in your case looks to be sda1, to /mnt/boot (mounting has to be done before arch-chrooting into the system) So
mkdir /mnt/boot
mount /dev/sda1 /mnt/boot although it looks like you have already done it. You will have to use the live usb installation image to do all this, I am not sure if it can be done through the existing arch installation. The packages you isntalled will remain in the installed system though, you won't have to pacstrap again.
Also, your sda1 is being mounted twice it looks like. According to this post - https://bbs.archlinux.org/viewtopic.php?id=234225 - it may give problems. So in your /etc/fstab you will have to find out which entry to remove. I am not experienced with UEFI dualbooting, so I don't know if mountpoint for the windows boot partition should be /mount or /mount/efi but this information should be there in the wiki.
But honestly I think your windows partition will get detected by installing ntfs-3g and then installing os-prober, running os-prober, and running grub-mkconfig. My windows partition was detected after I installed ntfs-3g. Before that both os-prober and grub couldn't detect it. So try removing all the extra info you have added to grub configuration files (by simply commenting with a # before each line you have added). ntfs-3g should do the trick.
Last edited by shera10001 (2018-02-06 18:10:19)
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