Hi, With the following kernel config entries on Linux 4.16-rc3: CONFIG_EXT2_FS=m # CONFIG_EXT2_FS_XATTR is not set CONFIG_EXT3_FS=m # CONFIG_EXT3_FS_POSIX_ACL is not set # CONFIG_EXT3_FS_SECURITY is not set CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y # CONFIG_EXT4_ENCRYPTION is not set # CONFIG_EXT4_DEBUG is not set CONFIG_JBD2=y # CONFIG_JBD2_DEBUG is not set ext4_fill_super() tells me: [ 3.033174] EXT4-fs (sda5): couldn't mount as ext3 due to feature incompatibilities [ 3.100186] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null) [ 3.102683] VFS: Mounted root (ext4 filesystem) readonly on device 8:5. This is a new install, new filesystem. It has never been ext2 or ext3. After bootup and before I do anything else, I can remount /dev/sda5 on / as rw and everything is OK. What am I doing wrong? thanks, -- ~Randy
