openwrt无法加载jffs2

我在移植openwrt到GFII(Option GlobeSurfer II)上时，出现下面的错误：

Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes

empty_blocks 0, bad_blocks 0, c->nr_blocks 13

switching to jffs2

mini_fo: using base directory: /

mini_fo: using storage directory: /overlay

- init -

b44: eth0: powering down PHY

Please press Enter to activate this console. mini_fo: build_sto_structure: failed to create storage dir [1].

mini_fo: get_neg_sto_dentry: ERROR building sto structure.

mini_fo: create_sto_file: ERROR getting neg. sto dentry.

然后，openwrt无法进入shell。

于是通过failsafe方式进入shell，运行

root@(none):/# mount -t jffs2 /dev/mtdblock5 /mnt

Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes

empty_blocks 0, bad_blocks 0, c->nr_blocks 13

因此可以断定系统的错误为无法mount jffs2文件系统。

通过google查找原因，发现是因为分区没有格式化为jffs2，因此mount时会出错。这是需要运行firstboot，再mount就OK了。

root@(none):/# firstboot

firstboot has already been run

jffs2 partition is mounted, only resetting files

重启单板，故障解决。