What is being displayed by the "GRUB screen" ?
What is on the internal HDD ? .. ie. was this a dual boot setup with Windows on the internal drive and Peppermint on the external drive ?
Can you also boot to the Peppermint LiveUSB and post the output from running these 2 commands in a terminal:
and
Hey im also having the same problem the internal hard-drive just has peppermint os 5 i installed it from live usb i deleted windows also grub is asking for a bash command the results you asked for
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 1 1465149167 732574583+ ee GPT
Partition 1 does not start on physical sector boundary.
Disk /dev/sdb: 8166 MB, 8166703104 bytes
256 heads, 63 sectors/track, 989 cylinders, total 15950592 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: 0xc3072e18
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="EE44-9BB9" TYPE="vfat"
/dev/sda2: UUID="455ebb63-1542-4ad1-9733-39136dbe346d" TYPE="ext2"
/dev/sda3: UUID="6e408e66-4605-4fdb-8878-4914655a1572" TYPE="crypto_LUKS"
/dev/sdb1: UUID="4C3E-AE78" TYPE="vfat