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I have read a few other posts about mounting an image so that I can edit the files in it and I have been trying to mount it as root as a loop back device and I calculated the offset. But I keep getting permission errors.
I check the offset and unit information of the image with:
fdisk -l emlid-raspbian-20170323-jessie.img
Disk emlid-raspbian-20170323-jessie.img: 2.8 GiB, 2944401408 bytes, 5750784 sectors
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: 0x0bb3234b
Device Boot Start End Sectors Size Id Type
emlid-raspbian-20170323-jessie.img1 8192 149503 141312 69M c W95 FAT32 (LBA)
emlid-raspbian-20170323-jessie.img2 149504 5750783 5601280 2.7G 83 LinuxI calculate the offset as 512*149504=76546048
I then log in as root with "su -"
I make a directory as root
mkdir /mnt/emlidand then try to mount it there
# mount -v -o loop,offset=76546048 emlid-raspbian-20170323-jessie.img /mnt/emlid/
mount: /mnt/emlid/: mount failed: Operation not permitted.I tried with the "-t ext4" argument as well, but got the same outcome.
I haven't done anything to my "fstab" file and it looks like the root line is
/dev/sda1 / ext4 rw,relatime,data=ordered 0 1If anyone has any suggestions, it'd be appreciated. All of the posts I've seen doing this don't mention any permission things except the need to be root, which I am.
Last edited by Jmillwood (2017-10-28 13:20:05)
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Your code tags don't work. Use [ code] [ /code ] (without the spaces).
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Yep thanks, just saw that on the bbcode site. I was looking at the syntax on FluxBB
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