69 lines
3.7 KiB
Markdown
69 lines
3.7 KiB
Markdown
---
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title: 回退Ubuntu Linux kernel
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createTime: 2024/09/04 17:57:37
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tags:
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- ubuntu
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categories:
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- 随记
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---
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## 背景
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前段时间 Ubuntu22.4 自动更新内核后，nvidia 535.86 安装不上了，编译报错`ERROR: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol 'rcu_read_unlock_strict'`
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大概有这么个公告：
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> **Problem with 535 Nvidia drivers and 5.15.0-106 kernel**
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> Recently, an ubuntu update to the 5.15.0-106 kernel produced the following error from the nvidia driver when it compiled the kernel module:
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>
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> ERROR: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol 'rcu_read_unlock_strict'
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>
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> We typically freeze our driver updates so that we can do them at planned downtimes – the fix was to unhold the held nvidia-driver packages and upgrade to nvidia-driver-550
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在 forum 上也确定了确实是内核更新带来的 bug，所以简单粗暴回退内核更新尝试解决
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## 回退 kernel
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```bash
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# 查看当前内核版本
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uname -a
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# 查看grub可选内核版本
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grep menuentry /boot/grub/grub.cfg
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```
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输出类似下面这样：
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> if [ x"${feature_menuentry_id}" = xy ]; then
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> menuentry_id_option="--id"
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> menuentry_id_option=""
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> export menuentry_id_option
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> menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-119-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-119-generic-advanced-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-119-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-119-generic-recovery-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-105-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-105-generic-advanced-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-105-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-105-generic-recovery-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-84-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-84-generic-advanced-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-84-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-84-generic-recovery-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-78-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-78-generic-advanced-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'Ubuntu, with Linux 5.15.0-78-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-78-generic-recovery-cdc0eb43-b3e9-4337-b245-bb62aeb7cff5' {
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> menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
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说明可选内核版本有`Ubuntu, with Linux 5.15.0-119-generic`、`Ubuntu, with Linux 5.15.0-105-generic`、`Ubuntu, with Linux 5.15.0-84-generic`、`Ubuntu, with Linux 5.15.0-78-generic`
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```bash
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# 查看nvidia驱动版本匹配
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ls /var/lib/dkms/nvidia/
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# 修改GRUB文件
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sudo vi /etc/default/grub
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```
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修改`GRUB_DEFAULT=0`的`0`值为`"Advanced options for Ubuntu>合适的内核版本"`
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```bash
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# 更新grub
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sudo update-grub
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# 重启
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sudo reboot
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```
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