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usb live stick, lost bootability and accessibility
i made bootable usb stick using winsetupfromusb.exe, content multiple useful tools, such hirenbcd, ubcd, antivirus, tails... and many *.iso.
few days ago, i was messing around ubcd tools and ended ruined my boot usb repair tool.
all data and iso are intact, all subfolder are still browse able using "active disk editor" and winhex.
disk management console (win):
shows "online", "k" drive, healthy (active, primary partition), RAW
when i plug in computer to boot up :
it boot into grub4dos (instead of landing at menu for me to select which iso to boot up with ), it just landed in
grub>
**because "invalid first FAT entry (0=1001)!" *** it can't locate menu.1st file.
when i type in some grub commands:
grub> boot
error 8: kernel must be loaded before booting
grub> configfile
warning! invalid first FAT entry (0=1001)!
error 15: file not found
grub> geometry
drive 0x80 (LBA): C/H/S=1906/255/63, sector count/size=30619890/512
partition num: 0, active, Warning! invalid first FAT entry (=0x1001)!
filesystem type is fat, partition type 0x0c
from all the info that i provided, anybody can teach me way to solve the problem or explain the issue
thx
andrew