Here are the results of all the commands from Tahr Pup 6.0.3 CE:
root# mount
rootfs on / type rootfs (rw,size=2050788k,nr_inodes=215524)
/dev/sda2 on /initrd/mnt/dev_save type ext4 (rw,noatime,data=ordered)
tmpfs on /initrd/mnt/tmpfs type tmpfs (rw,relatime,size=170004k)
/dev/loop0 on /initrd/pup_ro2 type squashfs (ro,noatime)
tmpfs on /initrd/mnt/tmpfs4 type tmpfs (rw,relatime,size=30912k)
/dev/loop4 on /initrd/pup_z type squashfs (ro,noatime)
unionfs on / type aufs (rw,relatime,si=5ab2a8e1)
tmpfs on /tmp type tmpfs (rw,relatime,size=5220144k)
devtmpfs on /dev type devtmpfs
(rw,relatime,size=2050808k,nr_inodes=215533,mode=755)
none on /proc type proc (rw,relatime)
none on /dev/pts type devpts (rw,relatime,gid=2,mode=620,ptmxmode=000)
none on /sys type sysfs (rw,relatime)
shmfs on /dev/shm type tmpfs (rw,relatime,size=918296k)
/dev/loop1 on /initrd/pup_ro4 type squashfs (ro,noatime)
/dev/sda3 on /mnt/sda3 type ext4 (rw,relatime,data=ordered)
root# lsblk
bash: lsblk: command not found
root# lsblk --all
bash: lsblk: command not found
root# sudo blkid
/dev/sda3: UUID="357b0a3a-250d-4d31-a126-5a3abffefe95" TYPE="ext4"
/dev/sda2: UUID="22f63502-6860-48b5-85c8-b4d368389187" TYPE="ext4"
/dev/sda1: UUID="19aec0ff-a25b-439a-a190-5b7c7f4ad52d" TYPE="swap"
/dev/mmcblk0p1: UUID="aca6ef85-8310-4299-b497-3893975a4b5a" TYPE="ext3"
/dev/loop4: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop0: TYPE="squashfs"
root#
