Re: recovering back-up.

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On 5/6/25 6:16 PM, Samuel Sieb wrote:
On 5/6/25 5:13 PM, home user via users wrote:
On 5/6/25 6:09 PM, Samuel Sieb wrote:
On 5/6/25 5:07 PM, home user via users wrote:
On 5/6/25 5:31 PM, Samuel Sieb wrote:
On 5/6/25 3:57 PM, home user via users wrote:
On 5/5/25 10:15 PM, Samuel Sieb wrote:
Try "fdisk -l /dev/sdb".
If it doesn't show the partition table, then try "gpart /dev/ sdb", then try "fdisk -l /dev/sdb" again. If it shows the partition table, then run "partprobe".  If that's not available, then install "parted".
Then try the mount.

# fdisk -l /dev/sdb
Disk /dev/sdb: 14.44 GiB, 15504900096 bytes, 30283008 sectors
Disk model:
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x5c3b37be

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1        8064 30283007 30274944 14.4G  c W95 FAT32 (LBA)
#

Question:
What counts (or doesn't count) as a "partition table" in the fdisk output?

It lists the partition.

Questions:
I have "partprobe"; I've read the man page.
1. What options (if any) do you want?
2. What goes in the [devices...] field?

Oh, I missed that.  I meant to say run "partprobe /dev/sdb".

# partprobe /dev/sdb
# mount /dev/sdb /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sdb,

mount /dev/sdb1 /mnt

# mount /dev/sdb1 /mnt
#
#

It does not show up in the gnome file browser.  (should it?)

No errors?  That's a really good sign!  Anything interesting in "dmesg | tail"?

# dmesg | tail
[ 5693.575167] hfsplus: unable to find HFS+ superblock
[ 6050.451123] EXT4-fs (sdb): VFS: Can't find ext4 filesystem
[ 6050.451964] EXT4-fs (sdb): VFS: Can't find ext4 filesystem
[ 6050.452424] EXT4-fs (sdb): VFS: Can't find ext4 filesystem
[ 6050.473075] ISOFS: Unable to identify CD-ROM format.
[ 6050.473745] FAT-fs (sdb): invalid media value (0xb9)
[ 6050.473752] FAT-fs (sdb): Can't find a valid FAT filesystem
[ 6050.474356] hfs: can't find a HFS filesystem on dev sdb
[ 6050.474952] hfsplus: unable to find HFS+ superblock
[ 6240.393795] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
#

It won't pop up anywhere.  Just go to /mnt.  You can click on the folder name at the top of the window and type that in.

More progress.
Doing that brings up some files and one directory.
There should be multiple directories.
If I try to look at the properties of that directory, it says "contents unreadable", and under that, "Unknown".
I tried opening 2 JPG files; they could not be opened.
I tried opening one text file; it could not be opened.

Is ddrescue and/or testdisk likely to help?


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