Can I format my thumb drive as Ext4 and mount it?
I have a new 32GB and format it to Ext4 using mkfs.ext4 /dev/sdd1. Confirmed it is Ext4 using Parted
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#mkfs.ext4 /dev/sdd1
mke2fs 1.42.6 (21-Sep-2012)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
2048000 inodes, 8191999 blocks
409599 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
250 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
# parted /dev/sdd
GNU Parted 2.3
Using /dev/sdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: Generic Flash Disk (scsi)
Disk /dev/sdd: 33.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 512B 33.6GB 33.6GB primary ext4
[ 5822.338419] JBD2: no valid journal superblock found
[ 5822.338425] EXT4-fs (sdd1): error loading journal
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scsi9 : usb-storage 2-2:1.0
[ 5812.592691] scsi 9:0:0:0: Direct-Access Generic Flash Disk 1.68 PQ: 0 ANSI: 2
[ 5812.593533] sd 9:0:0:0: [sdd] 65536000 512-byte logical blocks: (33.5 GB/31.2 GiB)
[ 5812.594279] sd 9:0:0:0: [sdd] Write Protect is off
[ 5812.594284] sd 9:0:0:0: [sdd] Mode Sense: 03 00 00 00
[ 5812.595275] sd 9:0:0:0: [sdd] No Caching mode page present
[ 5812.595279] sd 9:0:0:0: [sdd] Assuming drive cache: write through
[ 5812.599778] sd 9:0:0:0: [sdd] No Caching mode page present
[ 5812.599783] sd 9:0:0:0: [sdd] Assuming drive cache: write through
[ 5812.600799] sdd: sdd1
[ 5812.603549] sd 9:0:0:0: [sdd] No Caching mode page present
[ 5812.603553] sd 9:0:0:0: [sdd] Assuming drive cache: write through
[ 5812.603557] sd 9:0:0:0: [sdd] Attached SCSI removable disk
[ 5819.882526] JBD2: no valid journal superblock found
[ 5819.882532] EXT4-fs (sdd1): error loading journal
[ 5822.338419] JBD2: no valid journal superblock found
[ 5822.338425] EXT4-fs (sdd1): error loading journal
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