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cd /var/log
cat syslog
Mar 30 10:10:06 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:10:06 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)
Mar 30 10:17:01 c2-3 CRON[1632288]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Mar 30 10:17:24 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:17:24 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)
Mar 30 10:18:27 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:18:27 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)
Mar 30 10:18:30 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:18:30 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)
Mar 30 10:32:20 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:32:20 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)
Mar 30 10:37:15 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:37:15 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)
Mar 30 10:38:01 c2-3 multipath: nvme0n1: failed to get udev uid: Invalid argument
Mar 30 10:38:01 c2-3 multipath: nvme0n1: uid = eui.002538d611b18a04 (sysfs)

配置文件如下:
vim /etc/multipath.conf
defaults {
user_friendly_names yes
}
~

你到底要干啥？
不想在nvme0n1上搞multipath的话，在/etc/multipath.conf 里把它加入黑名单 不需要multipath功能，直接卸载multipath-tools包

vim /etc/multipath.conf 是默认配置文件， 没有动他

？？？你到底要干啥？

multipath 困扰了我很长时间，参考文章较少
原因是： 我挂载iscsi盘 16快 只能识别8个
解决方案： 我是禁用multipath 并删除deb包
systemctl stop multipathd multipathd.socket multipath-tools
systemctl disable multipathd && systemctl disable multipath-tools
apt remove multipath-tools