MobileRead Forums - View Single Post - Clara HD Cannot mount KOBOeReader partition once converted to ext4

bunbury · 08-24-2020, 01:44 PM

Thank you for your help offer and your concern.
For what I am doing, I need symlinks and various things vfat does not provide.
And I have a backup stock sdcard just in case

Here is fdisk -l on the kobo. I did that with parted and it looks ok.
Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type
/dev/mmcblk0p1 768,0,1 1023,3,16 49152 573440 524289 256M 83 Linux
/dev/mmcblk0p2 1023,3,16 1023,3,16 573441 1097729 524289 256M 83 Linux
/dev/mmcblk0p3 1023,3,16 1023,3,16 1097730 124735487 123637758 58.9G 83 Linux

Here are the mount points
/dev/root on / type ext4 (rw,noatime,nodiratime,data=ordered)
devtmpfs on /dev type devtmpfs (rw,relatime,size=254044k,nr_inodes=63511,mode=755 )
none on /proc type proc (rw,relatime)
none on /tmp type tmpfs (rw,relatime,size=16384k)
none on /dev type tmpfs (rw,relatime)
none on /var/lib type tmpfs (rw,relatime,size=16k)
none on /var/log type tmpfs (rw,relatime,size=16k)
none on /var/run type tmpfs (rw,relatime,size=128k)
none on /sys type sysfs (rw,relatime)
/dev/mmcblk0p3 on /mnt/onboard type ext4 (rw,noatime,nodiratime,data=ordered)

And this is the result of dmesg | grep mmc
EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
mmc1: new high speed SDIO card at address 0001
mmc1: card 0001 removed
mmc1: new high speed SDIO card at address 0001
mmc1: card 0001 removed
mmc1: new high speed SDIO card at address 0001
mmc1: card 0001 removed
mmc1: new high speed SDIO card at address 0001

This is how the kobo is recognized by lsusb once connected (after dialog confirmation)
Bus 001 Device 009: ID 2237:4228 Kobo Inc. eReader-4.23.15548

This is what the kernel does on the desktop when the kobo is plugged in (dmesg)
[83321.142976] usb 1-6: New USB device strings: Mfr=3, Product=4, SerialNumber=5
[83321.142979] usb 1-6: Product: eReader-4.23.15548
[83321.142982] usb 1-6: Manufacturer: Kobo
[83321.142985] usb 1-6: SerialNumber: N249870178900
[83321.145343] usb-storage 1-6:1.0: USB Mass Storage device detected
[83321.145922] scsi host6: usb-storage 1-6:1.0
[83322.154242] scsi 6:0:0:0: Direct-Access Linux File-Stor Gadget 0401 PQ: 0 ANSI: 2
[83322.154836] sd 6:0:0:0: Attached scsi generic sg1 type 0
[83322.155390] sd 6:0:0:0: Power-on or device reset occurred
[83322.178113] sd 6:0:0:0: [sda] Attached SCSI removable disk

And after that nothing.
There is only /dev/sda. No partition, no sda1, nothing.

Any idea ?

08-24-2020, 01:44 PM	#3
bunbury Enthusiast Posts: 37 Karma: 100 Join Date: Jan 2015 Location: Paris, France Device: Kobo Clara HD	Thank you for your help offer and your concern. For what I am doing, I need symlinks and various things vfat does not provide. And I have a backup stock sdcard just in case Here is fdisk -l on the kobo. I did that with parted and it looks ok. Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type /dev/mmcblk0p1 768,0,1 1023,3,16 49152 573440 524289 256M 83 Linux /dev/mmcblk0p2 1023,3,16 1023,3,16 573441 1097729 524289 256M 83 Linux /dev/mmcblk0p3 1023,3,16 1023,3,16 1097730 124735487 123637758 58.9G 83 Linux Here are the mount points /dev/root on / type ext4 (rw,noatime,nodiratime,data=ordered) devtmpfs on /dev type devtmpfs (rw,relatime,size=254044k,nr_inodes=63511,mode=755 ) none on /proc type proc (rw,relatime) none on /tmp type tmpfs (rw,relatime,size=16384k) none on /dev type tmpfs (rw,relatime) none on /var/lib type tmpfs (rw,relatime,size=16k) none on /var/log type tmpfs (rw,relatime,size=16k) none on /var/run type tmpfs (rw,relatime,size=128k) none on /sys type sysfs (rw,relatime) /dev/mmcblk0p3 on /mnt/onboard type ext4 (rw,noatime,nodiratime,data=ordered) And this is the result of dmesg \| grep mmc EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null) mmc1: new high speed SDIO card at address 0001 mmc1: card 0001 removed mmc1: new high speed SDIO card at address 0001 mmc1: card 0001 removed mmc1: new high speed SDIO card at address 0001 mmc1: card 0001 removed mmc1: new high speed SDIO card at address 0001 This is how the kobo is recognized by lsusb once connected (after dialog confirmation) Bus 001 Device 009: ID 2237:4228 Kobo Inc. eReader-4.23.15548 This is what the kernel does on the desktop when the kobo is plugged in (dmesg) [83321.142976] usb 1-6: New USB device strings: Mfr=3, Product=4, SerialNumber=5 [83321.142979] usb 1-6: Product: eReader-4.23.15548 [83321.142982] usb 1-6: Manufacturer: Kobo [83321.142985] usb 1-6: SerialNumber: N249870178900 [83321.145343] usb-storage 1-6:1.0: USB Mass Storage device detected [83321.145922] scsi host6: usb-storage 1-6:1.0 [83322.154242] scsi 6:0:0:0: Direct-Access Linux File-Stor Gadget 0401 PQ: 0 ANSI: 2 [83322.154836] sd 6:0:0:0: Attached scsi generic sg1 type 0 [83322.155390] sd 6:0:0:0: Power-on or device reset occurred [83322.178113] sd 6:0:0:0: [sda] Attached SCSI removable disk And after that nothing. There is only /dev/sda. No partition, no sda1, nothing. Any idea ?