On Mon, Oct 14, 2019 at 10:12:34AM -0700, Jaegeuk Kim wrote: > On 10/14, Theodore Y. Ts'o wrote: > > Control: tag 942121 +upstream > > > > Hi Chao, Jaeguk, > > > > Could you take a look at this complaint and let me know if I should > > close the bug as Working As Intended or not? > > We can bypass kernel check by adding an option "--no-kernel-check". > Like this?
The challenge is that for desktop and server installations of Linux, in general some program like /sbin/fsck parses /etc/fstab, and then runs the appropriate file-system specific fsck driver, e.g., /sbin/fsck.ext4, or /sbin/fsck.f2fs, etc. for each particular file system. On more modern-day systems systemd will run the /sbin/fsck.<FSTYPE> for each file system, but the issue remains the same: there in general isn't a good way to configure the OS to pass in file system-specific options, such as --no-kernel-check, to the /sbin/fsck.<FSTYPE> program. The solution that I have for this is to create a config file. See "man e2fsck.conf" for the documentation for it. Code to parse this WIN.INI-style "profile" is quite small; it was originally written for Kerberos, and then imported into e2fsprogs. There is a single C file[1] and a single header file[2], licensed under a MIT-style permissive free software license, so feel free to take and use it if it's helpful. [1] https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/tree/lib/support/profile.c [2] https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/tree/lib/support/profile.h Cheers, - Ted P.S. In case it isn't obvious, this is the same library code used to parse /etc/mke2fs.conf. See the man page for mke2fs.conf to see why we find it very useful to have a configuration file for mkfs.ext4. P.P.S. I also notice that f2fstools seem to bump the major version number of its shared libraries at every single release. There are ways this can be avoided; in fact, I haven't needed to bump the shared libraries for e2fsprogs in over a decade. Because new shared libraries require new debian packages, my upload of Debian package for f2fstools version 1.12.0 has been hung up in the NEW queue[1] for manual Debian ftpmaster review for over two months. So there some advantage in trying to avoid needing to bump the shared library version unnecessarily (although it does require more care to consider API/ABI backwards compatibility in your design and development). [1] https://ftp-master.debian.org/new.html