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kernel升级后无法正常启动，修改回原来的kernel版本
* I/ v9 i3 E8 t[root@controller1 ~]# cat /boot/grub2/grub.cfg |grep menuentry% Z3 b' F- D; c+ e
if [ x"${feature_menuentry_id}" = xy ]; then0 N0 R1 `, \+ }# `0 G, `
menuentry_id_option="--id"* W! ^% j9 a; Z, W4 }! ?
menuentry_id_option=""
, g. o, ~( q# t$ l* w0 rexport menuentry_id_option1 S/ z, X1 ]# j) E4 {/ G5 d
menuentry 'CentOS Linux (3.10.0-1160.36.2.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-1160.36.2.el7.x86_64-advanced-5974cad6-c394-47ba-b4ab-04005367659d' {6 u3 g3 e5 n. ~0 m3 z
menuentry 'CentOS Linux (3.10.0-1160.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-1160.el7.x86_64-advanced-5974cad6-c394-47ba-b4ab-04005367659d' {; W( A/ r$ a+ h( z# ^! l
menuentry 'CentOS Linux (0-rescue-3128f8b8b4814d42b2e9ba95ea070d87) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-3128f8b8b4814d42b2e9ba95ea070d87-advanced-5974cad6-c394-47ba-b4ab-04005367659d'
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4 p1 {+ ~1 s& }/ r) y! P[root@controller1 ~]# grub2-set-default 'CentOS Linux (3.10.0-1160.el7.x86_64) 7 (Core)'
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4 k7 C4 }. D& l4 I4 _: D[root@compute3 ~]# grub2-editenv list - H. M* T7 Z% O1 v8 v" {4 ~9 }
saved_entry=CentOS Linux (3.10.0-1160.el7.x86_64) 7 (Core)
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; J1 o! W( X& y) f- o! v+ M+ c或者修改启动顺序：, S; Q% e+ Y; t5 t% E" F$ d" H
4 A' H4 \5 x) j/ g4 I# vi /boot/grub2/grub.cfg - P0 I3 W% w( [0 {
### BEGIN /etc/grub.d/10_linux ###: J% X: C+ e' V# J
menuentry 'CentOS Linux (3.10.0-1160.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-1160.el7.x86_64-advanced-a829191f-3509-4590-b76a-230fc09056f7' {
% {4 o* `" q. @1 ? load_video. O+ |/ b4 \3 [! _
set gfxpayload=keep+ R5 }! }' o/ {# z- j% u" ~& q
insmod gzio5 v% r: f5 Z5 V; ?3 Q& U
insmod part_msdos+ a% D" {8 N5 l" R$ }& [
insmod xfs
1 i; n: R$ U: n' m) N+ u5 Z set root='hd0,msdos1': M; w. [. l- g, P0 g. u
if [ x$feature_platform_search_hint = xy ]; then( {9 B9 A" I2 ?0 g) y1 y* O; m
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' b6fd6b2b-adcf-4eea-8c75-e2ce34a4909e
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search --no-floppy --fs-uuid --set=root b6fd6b2b-adcf-4eea-8c75-e2ce34a4909e
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+ ^7 g7 Z6 P4 F4 [# ~ linux16 /vmlinuz-3.10.0-1160.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet LANG=en_US.UTF-8 m1 K8 q; a3 G1 z
initrd16 /initramfs-3.10.0-1160.el7.x86_64.img
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重启系统：$ S& J6 n" q0 a0 @
查看：& i9 {8 j( H( n3 k: B3 j" w" V
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[root@compute3 ~]# grub2-editenv list - [- Z2 h5 I: i9 q5 J7 u, p
saved_entry=CentOS Linux (3.10.0-1160.el7.x86_64) 7 (Core)
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grub2-editenv list
8 ^% u7 u& U% ^" F9 z7 u: P# W重启系统
0 k: y/ O6 P! p c$ Preboot: I N# }8 B$ Q; V4 f
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发表于 2021-8-11 12:04:03