[Sprint Samsung Galaxy S III] internetpilot:
I get "device not found" with an otherwise "working" stock recovery with the adb commands you posted.

Edit: My mounts.txt file just by using ES File with the phone booted to OS:

major minor #blocks name

7 0 7308 loop0
7 1 2111 loop1
7 2 24980 loop2
7 3 26019 loop3
7 4 42651 loop4
7 5 2111 loop5
7 6 13545 loop6
7 7 18743 loop7
179 0 15388672 mmcblk0
179 1 61440 mmcblk0p1
179 2 128 mmcblk0p2
179 3 256 mmcblk0p3
179 4 512 mmcblk0p4
179 5 2048 mmcblk0p5
179 6 512 mmcblk0p6
179 7 10240 mmcblk0p7
179 8 512 mmcblk0p8
179 9 512 mmcblk0p9
179 10 10240 mmcblk0p10
179 11 13952 mmcblk0p11
179 12 3072 mmcblk0p12
179 13 3072 mmcblk0p13
179 14 1536000 mmcblk0p14
179 15 12832768 mmcblk0p15
179 16 8192 mmcblk0p16
179 17 860160 mmcblk0p17
179 18 10240 mmcblk0p18
179 19 10240 mmcblk0p19
179 20 6144 mmcblk0p20
179 21 3072 mmcblk0p21
179 22 8 mmcblk0p22
179 23 5120 mmcblk0p23
179 32 30702592 mmcblk1
179 33 30698496 mmcblk1p1
254 0 7308 dm-0
254 1 2110 dm-1
254 2 24979 dm-2
254 3 26019 dm-3
254 4 42651 dm-4
254 5 2110 dm-5
254 6 13545 dm-6
254 7 18742 dm-7
7 8 26019 loop8
254 8 26019 dm-8
7 9 12506 loop9
254 9 12505 dm-9
7 10 22901 loop10
254 10 22900 dm-10
7 11 8348 loop11
254 11 8347 dm-11
7 12 34335 loop12
254 12 34335 dm-12
7 13 2111 loop13
254 13 2110 dm-13
7 14 32256 loop14
254 14 32256 dm-14
7 15 2111 loop15
254 15 2110 dm-15
7 16 4190 loop16
254 16 4189 dm-16
7 17 10427 loop17
254 17 10426 dm-17
7 18 2111 loop18
254 18 2110 dm-18
rootfs / rootfs ro,relatime 0 0
tmpfs /dev tmpfs rw,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,relatime,mode=600 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,relatime,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,relatime,user_xattr,barrier=1,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,nosuid,nodev,relatime,user_xattr,barrier=1,journal_async_commit,data=ordered,noauto_da_alloc,discard 0 0
/dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,nosuid,nodev,relatime,user_xattr,barrier=1,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/persist /persist ext4 rw,nosuid,nodev,relatime,user_xattr,barrier=1,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/modem /firmware vfat ro,relatime,gid=1000,fmask=0006,dmask=0006,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0
/dev/block/platform/msm_sdcc.1/by-name/efs /efs ext4 rw,nosuid,nodev,relatime,user_xattr,barrier=1,data=ordered 0 0
/sys/kernel/debug /sys/kernel/debug debugfs rw,relatime 0 0
/dev/fuse /storage/sdcard0 fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/block/dm-0 /mnt/asec/com.elvison.batterywidgetplus-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-1 /mnt/asec/com.dataviz.docstogoapp-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-2 /mnt/asec/com.yoyogames.droidtntbf-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-3 /mnt/asec/com.mediocre.grannysmith-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-4 /mnt/asec/cloudtv.hdwidgets-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-5 /mnt/asec/com.keramidas.TitaniumBackupPro-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-6 /mnt/asec/com.realarcade.DOJ-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-7 /mnt/asec/com.candyrufusgames.survivalcraft-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-8 /mnt/asec/com.levelup.beautifulwidgets-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-9 /mnt/asec/com.melodis.midomiMusicIdentifier-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-10 /mnt/asec/udk.android.reader-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-11 /mnt/asec/com.calengoo.android-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-12 /mnt/asec/com.thevoxelagents.TrainConductor2-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-13 /mnt/asec/com.teslacoilsw.launcher.prime-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-14 /mnt/asec/com.halfbrick.fruitninja-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-15 /mnt/asec/com.phascinate.minecrafthub-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-16 /mnt/asec/com.shinycore.picsaypro-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-17 /mnt/asec/com.lsgvgames.slideandflyfull-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-18 /mnt/asec/uk.co.nickfines.RealCalcPlus-1 ext4 ro,dirsync,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/vold/179:33 /storage/extSdCard vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1023,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0