Mount USB (FAT) in Gentoo
Can somebody show me how to make Gentoo mount my USB? This is what I got when trying mount /dev/sdb1 /mnt:
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog – try
dmesg | tail or so
dmesg says:
FAT: codepage cp437 not found
It seems that you do not have the “codepage cp437” support in the kernel.
Try to Look inside your /proc/config.gz file and search for a line like CONFIG_NLS_CODEPAGE_437=m or CONFIG_NLS_CODEPAGE_437=y. If you do not find it, you’ll have to recompile the kernel to add the needed module.
You need to set codepage and charset in kernel options:
make menuconfig -> File systems:
-> Native language support:
<*> Codepage 437 (United States, Canada)
<*> NLS ISO 8859-1 (Latin 1; Western European Languages)
-> DOS/FAT/NT Filesystems
(437) Default codepage for FAT
(iso8859-1) Default iocharset for FAT
and then recompile kernel…
First, make the mountpoint:
$ mkdir /mnt/udisk
Then, mount the USB drive, specifying the filesystem:
$ mount -t vfat -o defaults,utf8 /dev/sdb1 /mnt/udisk
If it were NTFS, you could use:
$ mount -t ntfs-3g -o defaults,utf8 /dev/sdb1 /mnt/udisk
Or for ISOs:
$ mount -o loop diskimage.iso /mnt/iso