[背景说明] 使用Anolis-8-x86_64-dvd iso拉起kvm虚拟机，虚拟机使用的是bios启动方式，虚拟机根分区与boot分区分别是/dev/vda1与/dev/vda2，需求是将vda3 vda4分别分区格式化后，再次安装上一个anolsi23 x86 LINUX系统（即双系统场景）实现切盘启动目的。 vda3 vda4部署好了anolis23 x86 LINUX系统后使用grubby --info=ALL无法获取对应系统的grub相关信息。 [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 7.7G 0 7.7G 0% /dev tmpfs 7.7G 0 7.7G 0% /dev/shm tmpfs 7.7G 8.4M 7.7G 1% /run tmpfs 7.7G 0 7.7G 0% /sys/fs/cgroup /dev/vda1 30G 4.8G 24G 17% / /dev/vda2 4.9G 173M 4.5G 4% /boot tmpfs 1.6G 0 1.6G 0% /run/user/0 /dev/vda4 2.9G 161M 2.6G 6% /mnt/boot /dev/vda3 12G 7.9G 3.3G 71% /mnt [root@localhost ~]# ls /mnt/ a bin boot check_dmesg dev etc export fs home lib lib64 lost+found media mnt opt p proc root run sbin srv sys tmp usr var [root@localhost ~]# ls /mnt/boot/ System.map-5.10.134-147.an23.x86_64 initramfs-5.10.134-147.an23.x86_64kdump.img config-5.10.134-147.an23.x86_64 loader efi lost+found grub2 symvers-5.10.134-147.an23.x86_64.gz initramfs-0-rescue-432698561ba6400e937f4027d8bde489.img vmlinuz-0-rescue-432698561ba6400e937f4027d8bde489 initramfs-5.10.134-147.an23.x86_64.img vmlinuz-5.10.134-147.an23.x86_64 [root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg Generating grub configuration file ... Found Anolis OS 23 on /dev/vda3 done [root@localhost ~]# grubby --info=ALL #没有anolis23的grub相关信息 index=0 kernel="/boot/vmlinuz-5.10.134-13.an8.x86_64" args="ro rhgb quiet $tuned_params cgroup.memory=nokmem crashkernel=0M-2G:0M,2G-8G:192M,8G-:256M" root="UUID=19eaadc4-8cb9-4e7a-b66f-5cb810946d57" initrd="/boot/initramfs-5.10.134-13.an8.x86_64.img $tuned_initrd" title="Anolis OS (5.10.134-13.an8.x86_64) 8" id="72e968fab3ef4550abd3055e4344b1db-5.10.134-13.an8.x86_64" index=1 kernel="/boot/vmlinuz-0-rescue-72e968fab3ef4550abd3055e4344b1db" args="ro crashkernel=auto rhgb quiet" root="UUID=19eaadc4-8cb9-4e7a-b66f-5cb810946d57" initrd="/boot/initramfs-0-rescue-72e968fab3ef4550abd3055e4344b1db.img" title="Anolis OS (0-rescue-72e968fab3ef4550abd3055e4344b1db) 8" id="72e968fab3ef4550abd3055e4344b1db-0-rescue" [环境详情] kvm虚拟机 ------------------------------------ [root@localhost ~]# cat /etc/anolis-release Anolis OS release 8.8 [root@localhost ~]# cat /etc/os-release NAME="Anolis OS" VERSION="8.8" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="8.8" PLATFORM_ID="platform:an8" PRETTY_NAME="Anolis OS 8.8" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" [root@localhost ~]# cat /proc/cmdline BOOT_IMAGE=(hd0,msdos2)/vmlinuz-5.10.134-13.an8.x86_64 root=UUID=19eaadc4-8cb9-4e7a-b66f-5cb810946d57 ro rhgb quiet cgroup.memory=nokmem crashkernel=0M-2G:0M,2G-8G:192M,8G-:256M [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 7.7G 0 7.7G 0% /dev tmpfs 7.7G 0 7.7G 0% /dev/shm tmpfs 7.7G 8.4M 7.7G 1% /run tmpfs 7.7G 0 7.7G 0% /sys/fs/cgroup /dev/vda1 30G 4.8G 24G 17% / /dev/vda2 4.9G 173M 4.5G 4% /boot tmpfs 1.6G 0 1.6G 0% /run/user/0 /dev/vda4 2.9G 161M 2.6G 6% /mnt/boot /dev/vda3 12G 7.9G 3.3G 71% /mnt [root@localhost ~]# free -g total used free shared buff/cache available Mem: 15 0 14 0 0 14 Swap: 0 0 0 [root@localhost ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 1 Socket(s): 2 NUMA node(s): 1 Vendor ID: GenuineIntel BIOS Vendor ID: Alibaba Cloud CPU family: 6 Model: 85 Model name: Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz BIOS Model name: pc-i440fx-2.1 Stepping: 4 CPU MHz: 2500.012 BogoMIPS: 5000.02 Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 1024K L3 cache: 33792K NUMA node0 CPU(s): 0-3 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f rdseed adx smap avx512cd xsaveopt xsavec xgetbv1 [root@localhost ~]# [root@localhost ~]# rpm -qa | grep grub grub2-pc-2.02-142.0.1.an8.1.x86_64 grub2-tools-minimal-2.02-142.0.1.an8.1.x86_64 grubby-8.40-47.0.1.an8.x86_64 grub2-tools-2.02-142.0.1.an8.1.x86_64 grub2-common-2.02-142.0.1.an8.1.noarch grub2-tools-extra-2.02-142.0.1.an8.1.x86_64 grub2-pc-modules-2.02-142.0.1.an8.1.noarch