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[root@localhost altlinux]# efibootmgr -v
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 2001,0001,2003,2002
Boot0000* EFI USB Device (USB     Flash Disk)	PciRoot(0x0)/Pci(0x1d,0x0)/USB(0,0)/USB(1,0)/HD(2,GPT,dd723996-9833-4240-b92a-b7747904661d,0x10ce5e4,0x3080)RC
Boot0001* Windows Boot Manager	HD(2,GPT,fdba5ce7-ee87-41d0-8b9b-b5045262cb1a,0x109000,0x32000)/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.}...,................
Boot0002* EFI Network 0 for IPv4 (D8-97-BA-3D-2F-EC) 	PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(d897ba3d2fec,0)/IPv4(0.0.0.00.0.0.0,0,0)RC
Boot0003* EFI Network 0 for IPv6 (D8-97-BA-3D-2F-EC) 	PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(d897ba3d2fec,0)/IPv6([::]:<->[::]:,0,0)RC
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC
[root@localhost altlinux]# lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0    7:0    0   2,3G  1 loop /.ro
sda      8:0    0 931,5G  0 disk 
├─sda1   8:1    0   529M  0 part 
├─sda2   8:2    0   100M  0 part 
├─sda3   8:3    0    16M  0 part 
├─sda4   8:4    0   100G  0 part 
├─sda5   8:5    0 330,9G  0 part 
├─sda6   8:6    0  29,3G  0 part 
├─sda7   8:7    0  11,7G  0 part 
├─sda8   8:8    0  15,6G  0 part 
└─sda9   8:9    0 443,4G  0 part 
sdb      8:16   1  14,8G  0 disk 
├─sdb1   8:17   1   8,4G  0 part /image
├─sdb2   8:18   1   6,1M  0 part 
└─sdb3   8:19   1   300K  0 part 
sdc      8:32   1     0B  0 disk 
sr0     11:0    1  1024M  0 rom  
[root@localhost altlinux]# lsblk -f
NAME   FSTYPE   FSVER            LABEL               UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
loop0  squashfs 4.0                                                                             0   100% /.ro
sda                                                                                                      
├─sda1 ntfs                      Восстановить        2A1E4D9D1E4D62C5                                    
├─sda2 vfat     FAT32                                4E50-B437                                           
├─sda3                                                                                                   
├─sda4 ntfs                                          DCBCA9E3BCA9B882                                    
├─sda5 ntfs                      Новый том           C27C73207C730F03                                    
├─sda6 ext4     1.0                                  99907e08-940e-4a2f-847d-16ca1b0b2952                
├─sda7 ext4     1.0                                  619b299a-ac20-41cb-8d09-362e2d71367d                
├─sda8 swap     1                                    72c87388-69f6-4b1b-af78-aeed1003f4fa                
└─sda9 ext4     1.0                                  328a2e52-b19e-4ea4-b21b-3ead86afd411                
sdb    iso9660  Joliet Extension Simply Linux x86_64 2023-06-16-11-48-15-00                              
├─sdb1 iso9660  Joliet Extension Simply Linux x86_64 2023-06-16-11-48-15-00                     0   100% /image
├─sdb2 vfat     FAT12            El Torito           FC8E-EF6B                                           
└─sdb3                                                                                                   
sdc                                                                                                      
sr0                                                                                                      
[root@localhost altlinux]# 

[root@localhost altlinux]# efibootmgr -c -d /dev/sda -p2 -L altlinux -l \\EFI\\altlinux\\shimx64.efi
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0004,2001,0001,2003,2002
Boot0000* EFI USB Device (USB     Flash Disk)
Boot0001* Windows Boot Manager
Boot0002* EFI Network 0 for IPv4 (D8-97-BA-3D-2F-EC) 
Boot0003* EFI Network 0 for IPv6 (D8-97-BA-3D-2F-EC) 
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot2003* EFI Network
Boot0004* altlinux
[root@localhost altlinux]# 



/boot/grub/grub.cfg

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-4E50-B437' {
	savedefault
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  4E50-B437
	else
	  search --no-floppy --fs-uuid --set=root 4E50-B437
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
### END /etc/grub.d/30_os-prober ###