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BikE
Guru
Joined: 21 Dec 2004
Posts: 455
Location: Genova
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 Posted: Sun Dec 25, 2005 12:55 pm Post subject: [RISOLTO] Montaggio Mp3 Player |
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Ho da poco un lettore MP3 che, una volta riconfigurato il kernel, viene correttamente riconosciuto.
Il device e' /dev/sda; Tentando di fare una partizione fat32, viene creata ma risulta impossibile montarla. Tentando di formattarlo da Windows la periferica viene riconosciuta e formattata correttamente in fat32 ma su Linux non c'e' verso di montarla nemmeno specificando il filesystem.. leggendo il man di fdisk:
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DOS 6.x WARNING
The DOS 6.x FORMAT command looks for some information in the first sector of the data area of the par-
tition, and treats this information as more reliable than the information in the partition table. DOS
FORMAT expects DOS FDISK to clear the first 512 bytes of the data area of a partition whenever a size
change occurs. DOS FORMAT will look at this extra information even if the /U flag is given -- we con-
sider this a bug in DOS FORMAT and DOS FDISK.
The bottom line is that if you use cfdisk or fdisk to change the size of a DOS partition table entry,
then you must also use dd to zero the first 512 bytes of that partition before using DOS FORMAT to for-
mat the partition. For example, if you were using cfdisk to make a DOS partition table entry for
/dev/hda1, then (after exiting fdisk or cfdisk and rebooting Linux so that the partition table informa-
tion is valid) you would use the command "dd if=/dev/zero of=/dev/hda1 bs=512 count=1" to zero the
first 512 bytes of the partition.
BE EXTREMELY CAREFUL if you use the dd command, since a small typo can make all of the data on your
disk useless.
For best results, you should always use an OS-specific partition table program. For example, you
should make DOS partitions with the DOS FDISK program and Linux partitions with the Linux fdisk or
Linux cfdisk program.
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Provato anche azzerando i primi 512 byte ma nulla da fare.... l'output e' sempre questo:
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Atlantide mnt # mount /dev/sda1 /mnt/usb/ -t vfat
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
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La partizione risulta corretta:
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Atlantide mnt # fdisk /dev/sda -l
Disk /dev/sda: 254 MB, 254541824 bytes
16 heads, 32 sectors/track, 971 cylinders
Units = cylinders of 512 * 512 = 262144 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 971 248560 b W95 FAT32
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L'output di dmesg e':
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VFS: Can't find a valid FAT filesystem on dev sda1.
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Consigli???
EDIT: Risolto compilando in build-in il Codepage 437 (United States, Canada)
Last edited by BikE on Sun Dec 25, 2005 8:29 pm; edited 1 time in total |
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Ferdinando
Veteran
Joined: 25 Nov 2003
Posts: 1027
Location: Gaeta (LT) - Italy
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| Posted: Sun Dec 25, 2005 5:10 pm Post subject: |
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Allora metti il tag [Risolto] 
Ciao
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SMiL3
n00b
Joined: 16 Jun 2005
Posts: 62
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| Posted: Wed Dec 28, 2005 11:14 am Post subject: Re: [RISOLTO] Montaggio Mp3 Player |
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| BikE wrote: |
EDIT: Risolto compilando in build-in il Codepage 437 (United States, Canada) |
scusami,
ho lo stesso identico problema (credo) con un hard-disk,
potresti dirmi com'è che hai risolto esattamente?
grazie 
[edit] uh scusa, è ovvio che vanno compilati nel kernel
https://forums.gentoo.org/viewtopic.php?t=257432&sid=bed669751aae8448c324fcf639603715
scusate 
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