On 1/15/13 11:43 AM, Andreas Dilger wrote: > > On 2013-01-14, at 11:01 PM, Prashant Shah wrote: >> When using debuge2fs on a ext3 partition the /dev partition does not >> show any entries at all. While running it on a ext4 partition only >> part of entries are shown for /dev. >> >> Below is the list of files and folder within /dev folder residing on >> a ext4 partition. Using "debugfs" shows around 92 entries while "ls" >> shows around 217 entries. A block level dump also shows the same >> folders as "debugfs". > > The first and most important question is whether "/dev" is a real > filesystem, or if it is a virtual (e.g. "tmpfs" type) filesystem > on your machine? was going to say the same thing; try # mount | grep "on /dev" >> --------------------- debugfs -------------------- >> 3014659 (12) . 2 (12) .. 3014663 (12) fd 3014664 (16) mapper >> 3014665 (12) pts 3014666 (12) shm 3014667 (16) agpgart >> >> >> --------- from ls ----------- >> autofs ecryptfs loop6 pts random sr0 >> tty2 tty35 tty50 tty9 ttyS22 uinput vcsa2 >> block fb0 loop7 ram0 rfkill stderr > > It would be useful to show "ls -li" information for some of the > entries that appear via debugfs (e.g. "fd", "pts", and "shm" above), > and also some of the entries that do not appear in debugfs. Yep, I'm guessing you are seeing some installer-created devices in the root fs's /dev but that something has been mounted over the top of it. -Eric > Cheers, Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
