[Samsung Galaxy Tab A series Questions & Answers] larrys_:
Trying to get the boot image I've run into difficulties. If someone knows, I would be greatful if they point out the boot partition.

first I've found different references to pulling from the device.

They seem to pulling via linux dd command or cat

Trouble is my dev directory does not have the device they reference nor does the proc directory

Pages That ... gave me ... a little but not enough

no such directory

http://android-dls.com/wiki/index.php?title=HOWTO:_Unpack,_Edit,_and_Re-Pack_Boot_Images

not sure this really helps

https://androidforums.com/threads/where-is-my-boot-img.892350/

again...maybe just phone? still no /proc/mtd

https://xdaforums.com/showthread.php?t=443994

no dump command

https://xdaforums.com/showthread.php?t=2146077

maybe from the mount command... blk37 or blk38 both are vfat mounted on /firmware-modem and /firmware respectively.

no mtd and I don't want the entire rom...plus I'd rather not download a command, currently

https://www.addictivetips.com/mobil...es-boot-recovery-and-system-partition-images/

...? recovery on blk13..for this one

https://androidforums.com/threads/c...-recovery-for-the-lg-viper-4g-lgls840.566507/

gta2xlwifi:/ $ ls /dev
ls: /dev/event-log-tags: Permission denied
__properties__ coresight-stm fd i2c-2 kmsg msm_amrnb msm_multi_aac psaux ramdump_smem smd1 smem_log tzic v4l-subdev12 video0
adsprpc-smd cpu_dma_latency fscklogs i2c-3 knox_kap msm_amrnb_in msm_qcelp pta ramdump_venus smd11 snd uhid v4l-subdev13 video1
android_mbim cpuctl fsdbg i2c-4 loop-control msm_amrwb msm_qcelp_in ptmx ramdump_wcnss smd2 socket uinput v4l-subdev14 video2
android_rndis_qc cpuset full i2c-5 mdsprpc-smd msm_amrwb_in msm_rtac pts random smd21 stune uio0 v4l-subdev15 video32
apr_apps2 dbmdx-0 fuse i2c-6 mdss_rotator msm_amrwbplus msm_sps qce rfkill smd22 subsys_a506_zap uio1 v4l-subdev16 video33
ashmem dbmdx-1 graphics i2c-7 media0 msm_ape msm_thermal_query qseecom rmnet_ctrl smd3 subsys_adsp urandom v4l-subdev17 vndbinder
at_usb0 dcc_sram hbtp_input i2c-8 media1 msm_audio_cal msm_wma radio0 rmnet_ctrl1 smd36 subsys_modem usb-ffs v4l-subdev2 wcnss_ctrl
at_usb1 dek_evt hbtp_vm i2c-9 media2 msm_evrc msm_wmapro ramdump_a506_zap rmnet_ctrl2 smd4 subsys_venus usb_accessory v4l-subdev3 wcnss_wlan
avtimer dek_log hw_random icd memory_bandwidth msm_evrc_in ncm_dev ramdump_adsp rmnet_ctrl3 smd5 subsys_wcnss usb_mtp_gadget v4l-subdev4 xt_qtaguid
binder dek_req hwbinder icdr mobicore msm_g711alaw network_latency ramdump_adsp_rh rtc0 smd6 sw_sync usb_ncm v4l-subdev5 zero
block device-mapper hyst_bias icesdcc mobicore-user msm_g711alaw_in network_throughput ramdump_memshare sdp_dlp smd7 tima_uevent usf1 v4l-subdev6
ccic_misc diag i2c-0 input msm-rng msm_g711mlaw null ramdump_memshare_DIAG sdp_mm smd8 tty v4l-subdev0 v4l-subdev7
ccid_bulk dpl_ctrl i2c-1 ion msm_aac msm_g711mlaw_in pmsg0 ramdump_memshare_FTM sdsprpc-smd smd_pkt_loopback ttyGS0 v4l-subdev1 v4l-subdev8
ccid_ctrl dun i2c-10 jpeg0 msm_aac_in msm_hweffects power_on_alarm ramdump_memshare_GPS sec_misc smdcntl0 ttyHSL0 v4l-subdev10 v4l-subdev9
console ear_mic_adc i2c-11 kgsl-3d0 msm_alac msm_mp3 ppp ramdump_modem smd0 smdcntl8 tun v4l-subdev11 vga_arbiter

gta2xlwifi:/proc $ ls -d [a-z]*
asound cgroups crypto dmverity_odin_flag fs irq kpagecount meminfo mounts reset_reason self stlog_pipe sysrq-trigger tsp_cmoffset_main tty uptime vmstat
avc_msg cmdline debug driver interrupts kallsyms kpageflags meminfo_extra net reset_summary slabinfo stlog_version thread-self tsp_cmoffset_sdc uid_cputime usblog zoneinfo
boot_stat config.gz device-tree execdomains iomem key-users last_kmsg memsize pagetypeinfo reset_tzlog softirqs store_lastkmsg tima_debug_log tsp_cmoffset_sub uid_io user_fault
buddyinfo consoles devices fb ioports keys loadavg misc partitions schedstat stat swaps timer_list tsp_msg uid_procstat version
bus cpuinfo diskstats filesystems iostats kmsg locks modules reset_klog scsi stlog sys timer_stats tsp_raw_data uid_stat vmallocinfo

gta2xlwifi:/proc $ mount
rootfs on / type rootfs (ro,seclabel,size=1302672k,nr_inodes=325668)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,size=1415200k,nr_inodes=353800,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)
proc on /proc type proc (rw,relatime,gid=3009,hidepid=2)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
/dev/block/dm-0 on /odm type ext4 (ro,seclabel,relatime,i_version)
/dev/block/dm-1 on /system type ext4 (ro,seclabel,relatime,i_version)
/dev/block/dm-2 on /vendor type ext4 (ro,seclabel,relatime,i_version)
none on /acct type cgroup (rw,relatime,cpuacct)
debugfs on /sys/kernel/debug type debugfs (rw,seclabel,relatime)
tmpfs on /mnt type tmpfs (rw,seclabel,relatime,size=1415200k,nr_inodes=353800,mode=755,gid=1000)
none on /config type configfs (rw,relatime)
tmpfs on /mnt/secure type tmpfs (rw,seclabel,relatime,size=1415200k,nr_inodes=353800,mode=700)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
none on /dev/cpuset type cgroup (rw,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent)
pstore on /sys/fs/pstore type pstore (rw,seclabel,relatime)
/dev/block/mmcblk0p44 on /cache type ext4 (rw,seclabel,nosuid,nodev,noatime,journal_checksum,journal_async_commit,noauto_da_alloc,i_version)
/dev/block/mmcblk0p31 on /persist type ext4 (rw,seclabel,nosuid,nodev,noatime,journal_checksum,journal_async_commit,noauto_da_alloc,i_version)
/dev/block/mmcblk0p16 on /efs type ext4 (rw,seclabel,nosuid,nodev,noatime,journal_checksum,journal_async_commit,noauto_da_alloc,i_version)
/dev/block/mmcblk0p36 on /dsp type ext4 (ro,seclabel,nosuid,nodev,relatime,i_version,data=ordered)
/dev/block/mmcblk0p38 on /firmware type vfat (ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/mmcblk0p37 on /firmware-modem type vfat (ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/mmcblk0p46 on /omr type ext4 (rw,seclabel,nosuid,nodev,noatime,journal_checksum,noauto_da_alloc,i_version)
tmpfs on /storage type tmpfs (rw,seclabel,relatime,size=1415200k,nr_inodes=353800,mode=755,gid=1000)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,seclabel,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
/dev/block/dm-3 on /data type ext4 (rw,seclabel,nosuid,nodev,noatime,journal_checksum,journal_async_commit,noauto_da_alloc,resgid=5555,i_version)
/data/knox/secure_fs/enc_user on /data/enc_user type ecryptfs (rw,seclabel,nodev,relatime,ecryptfs_fnek_sig=696678df255664c9,ecryptfs_sig=696678df255664c9,userid=0,sdp_enabled,partition_id=0,ecryptfs_cipher=aes,ecryptfs_key_bytes=32,ecryptfs_passthrough,base=,label=)
/data/knox/secure_fs/enc_media on /data/knox/secure_fs/enc_media type ecryptfs (rw,seclabel,nodev,relatime,ecryptfs_fnek_sig=696678df255664c9,ecryptfs_sig=696678df255664c9,userid=0,sdp_enabled,partition_id=1,ecryptfs_cipher=aes,ecryptfs_key_bytes=32,ecryptfs_passthrough,base=,label=)
/data/knox/secure_fs/enc_media on /mnt/shell/enc_emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1000,fsgid=1000,gid=9997,multiuser,reserved=20MB)
/data/media on /mnt/runtime/default/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,reserved=20MB)
/data/media on /storage/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,reserved=20MB)
/data/media on /mnt/runtime/read/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23,reserved=20MB)
/data/media on /mnt/runtime/write/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,reserved=20MB)

gta2xlwifi:/proc $ ls -larth /dev/block/mmc*
brw-rw---- 1 root system 179, 22 2017-12-31 18:02 /dev/block/mmcblk0p22
brw------- 1 root root 259, 11 2018-03-03 15:50 /dev/block/mmcblk0p43
brw------- 1 root root 259, 10 2018-03-03 15:50 /dev/block/mmcblk0p42
brw------- 1 root root 259, 9 2018-03-03 15:50 /dev/block/mmcblk0p41
brw------- 1 root root 179, 32 2018-03-03 15:50 /dev/block/mmcblk0rpmb
brw------- 1 root root 179, 9 2018-03-03 15:50 /dev/block/mmcblk0p9
brw------- 1 root root 179, 8 2018-03-03 15:50 /dev/block/mmcblk0p8
brw------- 1 root root 179, 7 2018-03-03 15:50 /dev/block/mmcblk0p7
brw------- 1 root root 179, 6 2018-03-03 15:50 /dev/block/mmcblk0p6
brw------- 1 root root 179, 5 2018-03-03 15:50 /dev/block/mmcblk0p5
brw------- 1 root root 259, 13 2018-03-03 15:50 /dev/block/mmcblk0p45
brw------- 1 root root 259, 8 2018-03-03 15:50 /dev/block/mmcblk0p40
brw------- 1 root root 179, 4 2018-03-03 15:50 /dev/block/mmcblk0p4
brw------- 1 root root 259, 6 2018-03-03 15:50 /dev/block/mmcblk0p38
brw------- 1 root root 259, 5 2018-03-03 15:50 /dev/block/mmcblk0p37
brw------- 1 root root 259, 4 2018-03-03 15:50 /dev/block/mmcblk0p36
brw------- 1 system system 259, 3 2018-03-03 15:50 /dev/block/mmcblk0p35
brw------- 1 root root 259, 2 2018-03-03 15:50 /dev/block/mmcblk0p34
brw-rw---- 1 system system 259, 1 2018-03-03 15:50 /dev/block/mmcblk0p33
brw------- 1 root root 179, 30 2018-03-03 15:50 /dev/block/mmcblk0p30
brw------- 1 root root 179, 3 2018-03-03 15:50 /dev/block/mmcblk0p3
brw------- 1 root root 179, 29 2018-03-03 15:50 /dev/block/mmcblk0p29
brw------- 1 root root 179, 28 2018-03-03 15:50 /dev/block/mmcblk0p28
brw------- 1 root root 179, 27 2018-03-03 15:50 /dev/block/mmcblk0p27
brw------- 1 root root 179, 26 2018-03-03 15:50 /dev/block/mmcblk0p26
brw------- 1 root root 179, 25 2018-03-03 15:50 /dev/block/mmcblk0p25
brw------- 1 root root 179, 24 2018-03-03 15:50 /dev/block/mmcblk0p24
brw------- 1 root root 179, 23 2018-03-03 15:50 /dev/block/mmcblk0p23
brw------- 1 root root 179, 21 2018-03-03 15:50 /dev/block/mmcblk0p21
brw------- 1 root root 179, 20 2018-03-03 15:50 /dev/block/mmcblk0p20
brw------- 1 root root 179, 2 2018-03-03 15:50 /dev/block/mmcblk0p2
brw------- 1 root root 179, 19 2018-03-03 15:50 /dev/block/mmcblk0p19
brw------- 1 root root 179, 18 2018-03-03 15:50 /dev/block/mmcblk0p18
brw------- 1 root root 179, 17 2018-03-03 15:50 /dev/block/mmcblk0p17
brw------- 1 root root 179, 13 2018-03-03 15:50 /dev/block/mmcblk0p13
brw------- 1 root root 179, 12 2018-03-03 15:50 /dev/block/mmcblk0p12
brw------- 1 root root 179, 11 2018-03-03 15:50 /dev/block/mmcblk0p11
brw------- 1 root root 179, 10 2018-03-03 15:50 /dev/block/mmcblk0p10
brw------- 1 root root 179, 1 2018-03-03 15:50 /dev/block/mmcblk0p1
brw------- 1 root root 179, 0 2018-03-03 15:50 /dev/block/mmcblk0
brw------- 1 root root 259, 14 2018-03-03 15:50 /dev/block/mmcblk0p46
brw------- 1 root root 259, 12 2018-03-03 15:50 /dev/block/mmcblk0p44
brw------- 1 root root 179, 31 2018-03-03 15:50 /dev/block/mmcblk0p31
brw------- 1 root root 179, 16 2018-03-03 15:50 /dev/block/mmcblk0p16
brw-rw---- 1 system system 259, 0 2018-03-24 13:20 /dev/block/mmcblk0p32
brw------- 1 root root 259, 15 2019-03-24 13:22 /dev/block/mmcblk0p47
brw------- 1 root root 179, 15 2019-03-24 13:32 /dev/block/mmcblk0p15
brw------- 1 root root 179, 14 2019-03-24 18:41 /dev/block/mmcblk0p14
brw------- 1 root root 259, 7 2019-03-25 13:31 /dev/block/mmcblk0p39

gta2xlwifi:/ $ ls /system/bin|grep dump
crash_dump32
dexdump
dumpstate
dumpsys
oatdump
tima_dump_log