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--- linux_faq:fix_grub_initramfs_boot [2020/09/26 14:55] – [Live-CD] admin
+++ linux_faq:fix_grub_initramfs_boot [2022/01/14 20:38] – [Real Fix] admin
@@ Line 97: / Line 97: @@
   * переустановить **grub**: <code>grub-install /dev/sda --root-directory=/mnt</code>
 Всё. В итоге система поднялась.
+====== Real Fix ======
+смотрим диски
+<code>
+root@rescue ~ # lsscsi
+[N:0:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme0n1
+[N:1:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme1n1
+[N:2:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme2n1
+[N:3:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme3n1
+[N:4:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme4n1
+[N:5:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme5n1
+[N:6:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme6n1
+[N:7:1:1]    disk    Micron_7300_MTFDHBE3T8TDF__1               /dev/nvme7n1
+</code>
+Я знаю, что EFI находится на (hd1,gpt2), а / и /boot - на LVM-томе **/dev/pve/root** \\
+Монтируем root и биндим все что надо:
+<code>root@rescue ~ # blkid /dev/pve/root
+/dev/pve/root: UUID="507da6be-c993-414a-91c1-fee245500c4d" BLOCK_SIZE="4096" TYPE="ext4"
+root@rescue ~ # lsblk /dev/pve/root
+NAME     MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
+pve-root 253:0    0  96G  0 lvm
+root@rescue ~ # resize2fs /dev/pve/root 95G
+resize2fs 1.46.2 (28-Feb-2021)
+Please run 'e2fsck -f /dev/pve/root' first.
+root@rescue ~ # e2fsck -f /dev/pve/root
+e2fsck 1.46.2 (28-Feb-2021)
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+/dev/pve/root: 60013/6291456 files (0.2% non-contiguous), 1830899/25165824 blocks
+root@rescue ~ # resize2fs /dev/pve/root 95G
+resize2fs 1.46.2 (28-Feb-2021)
+Resizing the filesystem on /dev/pve/root to 24903680 (4k) blocks.
+The filesystem on /dev/pve/root is now 24903680 (4k) blocks long.
+root@rescue ~ # lvreduce -L -1G /dev/pve/root
+  WARNING: Reducing active logical volume to 95.00 GiB.
+  THIS MAY DESTROY YOUR DATA (filesystem etc.)
+Do you really want to reduce pve/root? [y/n]: y
+  Size of logical volume pve/root changed from 96.00 GiB (24576 extents) to 95.00 GiB (24320 extents).
+  Logical volume pve/root successfully resized.
+root@rescue ~ # e2fsck -f /dev/pve/root
+e2fsck 1.46.2 (28-Feb-2021)
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+/dev/pve/root: 60013/6225920 files (0.2% non-contiguous), 1826787/24903680 blocks
+root@rescue ~ # mount /dev/mapper/pve-root /mnt
+root@rescue ~ #  mount -t proc proc /mnt/proc
+root@rescue ~ #  mount -t sysfs sys /mnt/sys
+root@rescue ~ #  mount -o bind /dev /mnt/dev
+root@rescue ~ #  mount -t devpts pts /mnt/dev/pts/
+root@rescue ~ #  chroot /mnt
+root@rescue:/# mount /dev/nvme0n1p2 /boot/efi/
+root@rescue:/#  update-grub
+Generating grub configuration file ...
+Found linux image: /boot/vmlinuz-5.13.19-1-pve
+Found initrd image: /boot/initrd.img-5.13.19-1-pve
+Found memtest86+ image: /boot/memtest86+.bin
+Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
+done
+root@rescue:/# grub-install /dev/nvme0n1
+Installing for i386-pc platform.
+Installation finished. No error reported.
+root@rescue:/# exit
+exit
+root@rescue ~ # umount /mnt/proc
+root@rescue ~ # umount /mnt/sys
+root@rescue ~ # umount /mnt/dev/pts
+root@rescue ~ # umount /mnt/dev
+root@rescue ~ # umount /mnt/boot/efi
+root@rescue ~ # umount /mnt
+</code>