search for: ext2_flag_rw

Hi, I just started testing ext3 and perhaps I missed some docs explaining how to convert system partition other than /, like /usr for example . As I have 2 Linux versions on my test machine, I managed to convert /usr by entering the mount -o journal=NNN command from the second OS, but I don't like it. Any suggestions or docs to look at? Thanks in advance Vieri

I want to convert the last of my filesystems to ext3. The only one left is /boot. It is not very big however, only about 10MB itself. Any recommendations on what size journal to put a /boot filesystem of only 10-20MB? Oh, BTW: "tunefs -j -J size=..." is awesome. No more gyrations with dd, chattr, lilo -R, etc. Nice! One note however: even in Stephen's 1.20.WIP.sct-20010216

...ns, - sizeof (ext2_filsys), 0, 1); - Ext2fs_val (fsv) = fs; + sizeof (struct ext2_data), 0, 1); + Ext2fs_val (fsv) = *data; CAMLreturn (fsv); } @@ -122,18 +127,18 @@ supermin_ext2fs_open (value filev) CAMLlocal1 (fsv); int fs_flags = EXT2_FLAG_RW; errcode_t err; - ext2_filsys fs; + struct ext2_data data; #ifdef EXT2_FLAG_64BITS fs_flags |= EXT2_FLAG_64BITS; #endif err = ext2fs_open (String_val (filev), fs_flags, 0, 0, - unix_io_manager, &fs); + unix_io_manager, &data.fs); i...

...> + /* Create the filesystem. */ > + if (mke2fs (filename) == -1) { > + unlink (filename); > + free (filename); > + return -1; Another example of early exit leaving disk->fd open. > + } > + > + /* Open the filesystem. */ > + err = ext2fs_open (filename, EXT2_FLAG_RW|EXT2_FLAG_64BITS, 0, 0, > + unix_io_manager, &fs); > + unlink (filename); > + free (filename); > + if (err) { > + nbdkit_error ("ext2fs_open: %s", error_message (err)); > + return -1; > + } > + > + err = ext2fs_read_bitmaps (fs...

Hello syslinux, Merry Christmas! These patches will make extlinux work with umounted ext2/3/4 filesystem, for example: $ extlinux -i /dev/sdXN or $ extlinux -i file_block Also it can work with something like: $ extlinux /dev/sdXN --reset-adv or $ extlinux file_block --reset-adv We don't use a new option (I planed to use "-d" but it is already in use), it will check whether the

Hello, Happy New Year! These patches make syslinux/linux support ext2/3/4, and it doesn't require the root privilege, I'd like to add a separate e2fs/syslinux, if that is more appropriate, it should be easy to do that. I put these patches on github so that you can easily get them in case you'd like to test them. (The repo's name is sys_tmp, which avoids confusing others, I will

...; fs_flags = 0; #ifdef EXT2_FLAG_64BITS fs_flags |= EXT2_FLAG_64BITS; #endif + r = next_ops->get_size (nxdata); + if (r == -1) + return -1; + r = next_ops->can_write (nxdata); + if (r == -1) + return -1; + if (r == 0) + readonly = 1; + if (!readonly) fs_flags |= EXT2_FLAG_RW; - err = ext2fs_open (disk, fs_flags, 0, 0, unix_io_manager, &h->fs); + h->next.next_ops = next_ops; + h->next.nxdata = nxdata; + name = nbdkit_io_encode (&h->next); + if (!name) { + nbdkit_error ("nbdkit_io_encode: %m"); + return -1; + } + + err = ext2fs...

There is a small test provided. I tested this a lot more locally and it seems pretty robust. Rich.

Turns out Japanese trains are good for coding! In supermin we have a bunch of code to create the libguestfs appliance. It creates it directly using libext2fs (part of e2fsprogs). We can use the same technique to create ext2 virtual disks in nbdkit, which is what this new plugin does. Why a new plugin instead of modifying the floppy plugin? See the 4/4 commit message for an explanation. The

...nbdkit_error ("ftruncate: %s: %m", filename); + free (filename); + return -1; + } + + /* Create the filesystem. */ + if (mke2fs (filename) == -1) { + unlink (filename); + free (filename); + return -1; + } + + /* Open the filesystem. */ + err = ext2fs_open (filename, EXT2_FLAG_RW|EXT2_FLAG_64BITS, 0, 0, + unix_io_manager, &fs); + unlink (filename); + free (filename); + if (err) { + nbdkit_error ("ext2fs_open: %s", error_message (err)); + return -1; + } + + err = ext2fs_read_bitmaps (fs); + if (err) { + nbdkit_error ("ext...

Another interesting thing you can do with this plugin: https://rwmj.wordpress.com/2019/02/19/nbdkit-linuxdisk-plugin/ v2: - Fix inconsistent tab/space. - All 3 plugins now contain a block of text pointing to the other 2 plugins. - TMDIR -> TMPDIR - Unlink the temporary file and other cleanups along error paths. - fclose -> pclose, and check the return value for errors. -

...appliance); - int r = system (cmd); - if (r == -1 || WEXITSTATUS (r) != 0) - error (EXIT_FAILURE, 0, "%s: failed", cmd); - free (cmd); - - if (verbose) - print_timestamped_message ("finished mke2fs"); - - /* Open the filesystem. */ - int fs_flags = EXT2_FLAG_RW; -#ifdef EXT2_FLAG_64BITS - fs_flags |= EXT2_FLAG_64BITS; -#endif - errcode_t err = - ext2fs_open (appliance, fs_flags, 0, 0, unix_io_manager, &fs); - if (err != 0) - error (EXIT_FAILURE, 0, "ext2fs_open: %s", error_message (err)); - - /* Bitmaps are not loaded by default, s...