[Sony Tablet S] condi:
does adb work?

yes, also after some minutes partially in recovery.

does this device have fastboot? (adb reboot bootloader)

no fastboot.

post the output of this command:

adb shell toolbox mount

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

debugfs /sys/kernel/debug debugfs rw,relatime 0 0

/dev/block/mmcblk0p1 /configs ext2 ro,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/mmcblk0p3 /system ext4 ro,relatime,barrier=1,data=ordered 0 0

/dev/block/mmcblk0p10 /data ext4 rw,nosuid,nodev,noatime,barrier=1,data=ordered 0 0

/dev/block/mmcblk0p4 /cache ext4 rw,nosuid,nodev,noatime,barrier=1,data=ordered 0 0

/dev/block/mmcblk0p9 /log ext4 rw,nosuid,nodev,noatime,barrier=1,data=ordered 0 0

/dev/block/svold/179:17 /mnt/sdcard2 vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/vold/179:11 /mnt/sdcard vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/vold/179:11 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

tmpfs /mnt/sdcard/.android_secure tmpfs ro,relatime,size=0k,mode=000 0 0

/dev/block/dm-0 /mnt/asec/com.subatomicstudios-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-1 /mnt/asec/com.rubicon.dev.glwg-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-2 /mnt/asec/com.trueaxis.jetcarstunts-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-3 /mnt/asec/com.massivefinger.PinballRide-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-4 /mnt/asec/com.polarbit.RecklessRacing-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-5 /mnt/asec/com.teamviewer.teamviewer.market.mobile-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-6 /mnt/asec/com.jakyl.spirithd-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-7 /mnt/asec/com.galcon.igalcon-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-8 /mnt/asec/com.mojang.minecraftpe-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-9 /mnt/asec/smpxg.mythdefense-2 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

/dev/block/dm-10 /mnt/asec/com.ea.worms_row-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,shortname=mixed,batch_sync,utf8,comp_uni,avoid_dlink,errors=remount-ro 0 0

or

adb shell mount

the same :)

then post the output of this command:

adb shell toolbox df

Filesystem Size Used Free Blksize

/dev 371M 64K 371M 4096

/configs 1M 54K 1M 2048

/mnt/asec 371M 0K 371M 4096

/mnt/obb 371M 0K 371M 4096

/system 377M 279M 98M 4096

/data 3G 949M 3G 4096

/cache 503M 8M 495M 4096

/log 15M 12M 3M 2048

/mnt/sdcard2 1G 4M 1G 32768

/mnt/sdcard 8G 5G 3G 4096

/mnt/secure/asec: Permission denied

/mnt/asec/com.subatomicstudios-1 40M 38M 2M 4096

/mnt/asec/com.rubicon.dev.glwg-1 27M 25M 2M 4096

/mnt/asec/com.trueaxis.jetcarstunts-1 23M 21M 1M 4096

/mnt/asec/com.massivefinger.PinballRide-1 14M 13M 1M 4096

/mnt/asec/com.polarbit.RecklessRacing-1 8M 6M 1M 4096

/mnt/asec/com.teamviewer.teamviewer.market.mobile-1 3M 1M 1M 4096

/mnt/asec/com.jakyl.spirithd-1 20M 18M 1M 4096

/mnt/asec/com.galcon.igalcon-1 7M 5M 1M 4096

/mnt/asec/com.mojang.minecraftpe-1 5M 3M 1M 4096

/mnt/asec/smpxg.mythdefense-2 11M 9M 1M 4096

/mnt/asec/com.ea.worms_row-1 3M 1M 1M 4096

or

adb shell df

same of course.

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