[Verizon HTC One (M9)] Dino10or:
So I discovered a way to dismount any partition in fastboot-- until you restart the bootloader at least. The method may or may not work in ADB. Yet to be tested.

I'm not sure how this would help me though, as you need certain partitions for a lot of the commands to work correctly.

Those are the partitions I'm getting-- not sure if unmounting any of these would allow me to abuse anything. [MENTION=3437245]scotty1223[/MENTION]

C:\Program Files (x86)\Minimal ADB and Fastboot>adb shell cat /proc/emmc
dev: size erasesize name
mmcblk0p1: 00004000 00000200 "board_info"
mmcblk0p2: 00400000 00000200 "pg1fs"
mmcblk0p3: 00100000 00000200 "sbl1"
mmcblk0p4: 00100000 00000200 "pmic"
mmcblk0p5: 02800000 00000200 "dummy"
mmcblk0p6: 001f7c00 00000200 "reserve_1"
mmcblk0p7: 00040000 00000200 "mfg"
mmcblk0p8: 017afc00 00000200 "pg2fs"
mmcblk0p9: 00080000 00000200 "rpm"
mmcblk0p10: 00200000 00000200 "tz"
mmcblk0p11: 00018000 00000200 "sdi"
mmcblk0p12: 00200000 00000200 "hyp"
mmcblk0p13: 00100000 00000200 "aboot"
mmcblk0p14: 00a00000 00000200 "tool_diag"
mmcblk0p15: 00a00000 00000200 "sp1"
mmcblk0p16: 00100000 00000200 "ddr"
mmcblk0p17: 00100000 00000200 "rfg_0"
mmcblk0p18: 00100000 00000200 "rfg_1"
mmcblk0p19: 00100000 00000200 "rfg_2"
mmcblk0p20: 00100000 00000200 "rfg_3"
mmcblk0p21: 00100000 00000200 "rfg_4"
mmcblk0p22: 00100000 00000200 "rfg_5"
mmcblk0p23: 00100000 00000200 "rfg_6"
mmcblk0p24: 00100000 00000200 "rfg_7"
mmcblk0p25: 00180000 00000200 "fsg"
mmcblk0p26: 03b00400 00000200 "radio"
mmcblk0p27: 01400000 00000200 "adsp"
mmcblk0p28: 00000400 00000200 "limits"
mmcblk0p29: 004f7c00 00000200 "reserve_2"
mmcblk0p30: 01600000 00000200 "persist"
mmcblk0p31: 00a00000 00000200 "ramdump"
mmcblk0p32: 00100000 00000200 "misc"
mmcblk0p33: 00180000 00000200 "modem_st1"
mmcblk0p34: 00180000 00000200 "modem_st2"
mmcblk0p35: 01400000 00000200 "fataldevlog"
mmcblk0p36: 01e00000 00000200 "devlog"
mmcblk0p37: 00040000 00000200 "pdata"
mmcblk0p38: 00004000 00000200 "control"
mmcblk0p39: 00010000 00000200 "extra"
mmcblk0p40: 00100000 00000200 "cdma_record"
mmcblk0p41: 00000400 00000200 "fsc"
mmcblk0p42: 00002000 00000200 "ssd"
mmcblk0p43: 00080000 00000200 "sensor_hub"
mmcblk0p44: 00020000 00000200 "sec"
mmcblk0p45: 00100000 00000200 "abootbak"
mmcblk0p46: 00002800 00000200 "cir_img"
mmcblk0p47: 00140400 00000200 "local"
mmcblk0p48: 00080000 00000200 "frp"
mmcblk0p49: 00200000 00000200 "cpe"
mmcblk0p50: 00a00000 00000200 "vzw_quality"
mmcblk0p51: 00a00000 00000200 "vzw_logger"
mmcblk0p52: 01400000 00000200 "carrier"
mmcblk0p53: 00040000 00000200 "skylink"
mmcblk0p54: 00020000 00000200 "rfg_8"
mmcblk0p55: 00020000 00000200 "rfg_9"
mmcblk0p56: 00020000 00000200 "rfg_10"
mmcblk0p57: 00020000 00000200 "rfg_11"
mmcblk0p58: 00020000 00000200 "rfg_12"
mmcblk0p59: 00020000 00000200 "rfg_13"
mmcblk0p60: 00020000 00000200 "rfg_14"
mmcblk0p61: 00020000 00000200 "rfg_15"
mmcblk0p62: 00a00000 00000200 "battery"
mmcblk0p63: 00007000 00000200 "reserve"
mmcblk0p64: 04000000 00000200 "hosd"
mmcblk0p65: 04000000 00000200 "boot"
mmcblk0p66: 04000000 00000200 "recovery"
mmcblk0p67: 55000000 00000200 "cache"
mmcblk0p68: 18000000 00000200 "system"
mmcblk0p69: a0000000 00000200 "userdata"
mmcblk0p70: 12200000 00000200 "apppreload"
mmcblk0p71: 03c00000 00000200 "cota"
mmcblk0p72: 01000000 00000200 "absolute"