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my hardware: Asus Eee PC 901go, Ubuntu 12.04.

System has crashed and doesn't boot without USB Ubutnu 12.04 stick. When trying to load normally (when choosing Ubuntu newest ver. via Grub) I get blank black screen. In all other cases (If I choose Linux restore pae version, doesn't matter which) I get the same response:

Begin: Running /scripts/init-bottom ... mount: mounting /dev on /root/dev failed: No such file or directory done. mount: mounting /sys on /root/sys failed: No such file or directory mount: mounting /proc on /root/proc failed: No such file or directory Target filesystem doesn't have requested /sbin/init. No init found. Try passing init = bootarg.

BusyBox v1.18.5 (Ubuntu 1:1.18.5-1ubuntu4.1) built-in shell (ash) Enter 'help' for a list of built-in commands.

(initfrms)

When booting from USB, doing 'Try Ubuntu' and then in Terminal:

ubuntu@ubuntu:~$ ls /dev
agpgart          network_latency     shm       tty34  tty9       ttyUSB1
autofs           network_throughput  snapshot  tty35  ttyprintk  ttyUSB2
block            null                snd       tty36  ttyS0      uinput
bsg              oldmem              stderr    tty37  ttyS1      urandom
btrfs-control    port                stdin     tty38  ttyS10     usbmon0
bus              ppp                 stdout    tty39  ttyS11     usbmon1
char             psaux               tty       tty4   ttyS12     usbmon2
console          ptmx                tty0      tty40  ttyS13     usbmon3
core             pts                 tty1      tty41  ttyS14     usbmon4
cpu              ram0                tty10     tty42  ttyS15     usbmon5
cpu_dma_latency  ram1                tty11     tty43  ttyS16     v4l
disk             ram10               tty12     tty44  ttyS17     vcs
dri              ram11               tty13     tty45  ttyS18     vcs1
ecryptfs         ram12               tty14     tty46  ttyS19     vcs2
fb0              ram13               tty15     tty47  ttyS2      vcs3
fd               ram14               tty16     tty48  ttyS20     vcs4
full             ram15               tty17     tty49  ttyS21     vcs5
fuse             ram2                tty18     tty5   ttyS22     vcs6
hpet             ram3                tty19     tty50  ttyS23     vcs7
input            ram4                tty2      tty51  ttyS24     vcsa
kmsg             ram5                tty20     tty52  ttyS25     vcsa1
log              ram6                tty21     tty53  ttyS26     vcsa2
loop0            ram7                tty22     tty54  ttyS27     vcsa3
loop1            ram8                tty23     tty55  ttyS28     vcsa4
loop2            ram9                tty24     tty56  ttyS29     vcsa5
loop3            random              tty25     tty57  ttyS3      vcsa6
loop4            rfkill              tty26     tty58  ttyS30     vcsa7
loop5            rtc                 tty27     tty59  ttyS31     vga_arbiter
loop6            rtc0                tty28     tty6   ttyS4      video0
loop7            sda                 tty29     tty60  ttyS5      zero
loop-control     sdb                 tty3      tty61  ttyS6
mapper           sdb1                tty30     tty62  ttyS7
mcelog           serial              tty31     tty63  ttyS8
mem              sg0                 tty32     tty7   ttyS9
net              sg1                 tty33     tty8   ttyUSB0

ubuntu@ubuntu:~$ mount
/cow on / type overlayfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
/dev/sdb1 on /cdrom type vfat
(rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,er>rors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
gvfs-fuse-daemon on /home/ubuntu/.gvfs type fuse.gvfs-fuse-daemon     (rw,nosuid,nodev,user=ubuntu)

ubuntu@ubuntu:~$ ls -al /dev | grep sd
brw-rw----   1 root   disk      8,   0 Bal 17 17:58 sda
brw-rw----   1 root   disk      8,  16 Bal 17 17:58 sdb
brw-rw----   1 root   disk      8,  17 Bal 17 17:58 sdb1

ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sdb: 7862 MB, 7862353920 bytes
242 heads, 62 sectors/track, 1023 cylinders, total 15356160 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005f2a2

Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *          62    15349091     7674515    c  W95 FAT32 (LBA)

ubuntu@ubuntu:~$ sudo fdisk -lu

Disk /dev/sdb: 7862 MB, 7862353920 bytes
242 heads, 62 sectors/track, 1023 cylinders, total 15356160 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005f2a2

Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *          62    15349091     7674515    c  W95 FAT32 (LBA)

ubuntu@ubuntu:~$ sudo parted -l
Model: Kingston DataTraveler 109 (scsi)
Disk /dev/sdb: 7862MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags
1      31,7kB  7859MB  7859MB  primary  fat32        boot, lba

so this is my USB stick, but no internal SSD. What does that mean?

and contents of /etc/fstab

overlays / overlaysfs rw 0 0 tmpfs /tmp tmpfs nosuid,nodev 0 0

I don't understand how could I mount sda or sda1 manually, is my disk corrupted and I cannot access it? I would like to simply format it and reinstall Ubuntu.

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