fedora可以升级系统到29或者30吗

看到有新的就想升级

升到29出现的问题
系统启动中反复出现的错误
Failed to start Security Auditing Service.
See 'systemctl status auditd.service' for details.

detial-----start----
Jun 29 12:26:18 localhost.localdomain systemd[1]: Starting Security Auditing Service...
Jun 29 12:26:18 localhost.localdomain auditd[1081]: Error - audit support not in kernel
Jun 29 12:26:18 localhost.localdomain auditd[1081]: Cannot open netlink audit socket
Jun 29 12:26:18 localhost.localdomain auditd[1080]: Cannot daemonize (Success)
Jun 29 12:26:18 localhost.localdomain auditd[1080]: The audit daemon is exiting.
Jun 29 12:26:18 localhost.localdomain systemd[1]: auditd.service: Control process exited, code=exited s>
Jun 29 12:26:18 localhost.localdomain auditd[1081]: The audit daemon is exiting.
Jun 29 12:26:18 localhost.localdomain systemd[1]: auditd.service: Failed with result 'exit-code'.
Jun 29 12:26:18 localhost.localdomain systemd[1]: Failed to start Security Auditing Service.
detail----end----

进入系统后其他的错误：
执行sudo dnf upgrade --refres
Failed to synchronize cache for repo 'rockchip'
Ignoring repositories: rockchip

准备重新刷回28了

只刷官方linux系统，启动还是有报错

执行：systemctl status toybrick.service
日志：
toybrick.service - SYSV: Activates/Deactivates Toybirck System Environment
   Loaded: loaded (/etc/rc.d/init.d/toybrick; generated)
   Active: failed (Result: exit-code) since Wed 2019-02-20 11:10:54 EST; 4 months 7 days ago
     Docs: man:systemd-sysv-generator(8)
  Process: 355 ExecStart=/etc/rc.d/init.d/toybrick start (code=exited, status=1/FAILURE)

Feb 20 11:10:54 localhost.localdomain toybrick[355]: chmod: cannot access '/dev/ttyXRUSB1': No such file or directory
Feb 20 11:10:54 localhost.localdomain toybrick[355]: chmod: cannot access '/dev/ttyXRUSB2': No such file or directory
Feb 20 11:10:54 localhost.localdomain toybrick[355]: chmod: cannot access '/dev/ttyXRUSB3': No such file or directory
Feb 20 11:10:54 localhost.localdomain toybrick[355]: resize2fs 1.44.2 (14-May-2018)
Feb 20 11:10:54 localhost.localdomain toybrick[355]: resize2fs: Device or resource busy While checking for on-line resizing support
Feb 20 11:10:54 localhost.localdomain toybrick[355]: Filesystem at /dev/mmcblk1p4 is mounted on /; on-line resizing required
Feb 20 11:10:54 localhost.localdomain toybrick[355]: old_desc_blocks = 1, new_desc_blocks = 4
Feb 20 11:10:54 localhost.localdomain systemd[1]: toybrick.service: Control process exited, code=exited status=1
Feb 20 11:10:54 localhost.localdomain systemd[1]: toybrick.service: Failed with result 'exit-code'.
Feb 20 11:10:54 localhost.localdomain systemd[1]: Failed to start SYSV: Activates/Deactivates Toybirck System Environment.
另外还有fedora的错误
Failed to start Security Auditing Service.
See 'systemctl status auditd.service' for details.

28-30改动有点大，我们很多包要重新编译，只想跑系统的话直接烧官方下载的rootfs就可以了。
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