unable to mount partition after losetup

[leslie-qiwa]

Thanks for the great package!

I use the example program to attach one device, but seems like unable to mount it. Can you help with it?

# losetup
NAME       SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE                DIO LOG-SEC
/dev/loop0         0      0         0  0 /tmp/deploy/newimage.img   0     512

# fdisk -l
Disk /dev/loop0: 4.9 GiB, 5242880000 bytes, 10240000 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: 0x9f0032d8

Device       Boot   Start      End Sectors  Size Id Type
/dev/loop0p1 *       2048  2099199 2097152    1G 83 Linux
/dev/loop0p2      2099200  3123199 1024000  500M 82 Linux swap / Solaris
/dev/loop0p3      3123200 10239999 7116800  3.4G 83 Linux

# mount /dev/loop0p1 ./tt/
mount: /tmp/deploy/tt: special device /dev/loop0p1 does not exist.

[leslie-qiwa]

example codes:

import (
        "fmt"
        "log"
        "os"

        "github.com/freddierice/go-losetup/v2"
)

func main() {
        // attach a raw file to a loop device
        dev, err := losetup.Attach(os.Args[1], 0, false)
        if err != nil {
                // error checking
                log.Fatal(err)
        }

        fmt.Printf("attached %s to %v\n", os.Args[1], dev.Path())

        /*
                err = dev.Detach()
                if err != nil {
                        // error checking
                        log.Fatal(err)
                }
        */
}

[leslie-qiwa]

Seems like missing -P scan option. Maybe set it as default?