/proc/<pid>/root is a link for the root filesystem. This link helps when using chroot.
From: Arun M Kumar <arunkr.linux@gmail.com> To: Kernel Newbies Mailing List <kernelnewbies@kernelnewbies.org> Sent: Sunday, September 15, 2013 8:03 PM Subject: Significance of " /proc/<pid>/root"
What is the
significance of the directory named root inside /proc/<pid> ?
ex: ---------------------------------------------------------------------------------- arunkumar@arun-ThinkPad-Edge-E530:/proc/2543/root$ ls
bin cdrom etc initrd.img lib media opt root sbin srv tmp var vmlinuz.old boot dev home initrd.img.old lost+found mnt proc run selinux sys usr vmlinuz ----------------------------------------------------------------------------------