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linux_os2
Apprentice
Joined: 29 Aug 2018
Posts: 236
Location: Zedelgem Belgium
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 Posted: Tue Jan 30, 2024 8:13 am Post subject: mount: /mnt: wrong fs type, bad option, bad superblock ..... |
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Hi,
The first 4 partitions are those from a Windows 10
the first partition is the System partition from Windows????
the second is the efi partition
the third is the Microsoft reserved partition
the 4th is the Microsoft basic data partition (ntfs the c drive)
When mounting the first partition | Code: | | mount /dev/md126p1 /mnt |
message: | Code: | mount: /mnt: wrong fs type, bad option, bad superblock on /dev/md126p1, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call. |
when vfat module is loaded before:
then the mount is ok.
Is this a bug? Or is this works as designed?
If a bug where can a bug-report be opened?
Marc. |
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pietinger
Moderator
Joined: 17 Oct 2006
Posts: 4341
Location: Bavaria
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| Posted: Tue Jan 30, 2024 2:09 pm Post subject: |
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What happens if you do this mount command (before manually loading module vfat) ?
| Code: | | mount -t vfat /dev/md126p1 /mnt |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54407
Location: 56N 3W
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| Posted: Tue Jan 30, 2024 5:14 pm Post subject: |
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linux_os2,
When you use the lazy form of mount, that is, you don't provide all the information, the kernel looks in /etc/fstab for the missing data
When you give a block device and destination but no filesystem, the kernel tries all the filesystems it knows.
If driver is loaded, good, if not, the mount fails. The kernel does not know what filesystem driver to load.
When you provide all the information that mount requires, the kernel can load the module.
Its a design feature, not a bug.
Well. its more a case of the kernel has no way to determine the filesystem until the filesystem is mounted.
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Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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