Updating u-boot corrupt filesystem on Odroid N2

[onderon]

I have an Odroid N2+ with eMMC. I've installed CoreElec and Ubuntu 20.04 (mate) on it. Yesterday when I tried to update some packages, I've noticed there are some errors (see below). After rebooting, petitboot could not see Ubuntu. I've noticed when I ran "ls /media/boot" which points to that 128MB boot partition, I see non-English characters as directory and file names. I restored my boot partition form Ubuntu image file. As long as I don't update u-boot, I don't have any problem. Is this normal? I have the output during the update. I had 4 updates so I corrupt and restore the partition multiple times to figure out it was u-boot:

[rooted]

Your pastebin link is invisible so I'm repasting it:

https://pastebin.com/tg6kr7S4

[onderon]

We've tested the new uboot package with microSD and eMMC deivces. Petitboot also detected new bootloader well.
There was no issue so far.

We will try reproducing your issue tomorrow.
Did you install CoreELEC first and install Ubuntu 20.04 + Kernel 4.9 Mate image?
Which version of CE did you flash?
Which version of Petitboot do you run?

[onderon]

We've tested the new uboot package with microSD and eMMC deivces. Petitboot also detected new bootloader well.
There was no issue so far.

We will try reproducing your issue tomorrow.
Did you install CoreELEC first and install Ubuntu 20.04 + Kernel 4.9 Mate image?
Which version of CE did you flash?
Which version of Petitboot do you run?

Thanks for your response. Please find the answers below:

1. I installed CoreELEC (CoreELEC-Amlogic-ng.arm-19.3-Matrix-Odroid_N2.img) first and then Ubuntu 20.04 (ubuntu-20.04-4.9-mate-odroid-n2-20210830.img). Here is my partition list if it helps (pastebin: https://pastebin.com/bCa1cW3f):

Code: Select all

$ sudo parted /dev/mmcblk0 unit MiB print
Model: MMC BJTD4R (sd/mmc)
Disk /dev/mmcblk0: 29820MiB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start    End       Size      Type      File system  Flags
 1      4.00MiB  516MiB    512MiB    primary   fat16        boot, lba
 2      516MiB   7753MiB   7237MiB   primary   ext4
 3      7754MiB  29820MiB  22066MiB  extended               lba
 5      7755MiB  7883MiB   128MiB    logical   fat16        lba
 6      7884MiB  29820MiB  21936MiB  logical   ext4

2. CoreELEC-Amlogic-ng.arm-19.3-Matrix-Odroid_N2.img
3. I don't remember the version of petitboot. I ran pb-update before partitioning so it shouldn't be that old (I think November 2021). After the problem occurred I ran pb-update so it's updated to 20220129. After the update I couldn't even see CoreELEC. So I updated petitboot to 20220204 (flashing into MicroSD).

For me to reproduce the issue (with petitboot 20220204) I follow these steps:
1. Flash Ubuntu boot partition from ISO image into mine to fix the file system.
2. I ssh into Ubuntu and run the following command:
sudo apt install --reinstall u-boot

[tobetter]

We've tested the new uboot package with microSD and eMMC deivces. Petitboot also detected new bootloader well.
There was no issue so far.

We will try reproducing your issue tomorrow.
Did you install CoreELEC first and install Ubuntu 20.04 + Kernel 4.9 Mate image?
Which version of CE did you flash?
Which version of Petitboot do you run?

Thanks for your response. Please find the answers below:

1. I installed CoreELEC (CoreELEC-Amlogic-ng.arm-19.3-Matrix-Odroid_N2.img) first and then Ubuntu 20.04 (ubuntu-20.04-4.9-mate-odroid-n2-20210830.img). Here is my partition list if it helps (pastebin: https://pastebin.com/bCa1cW3f):

Code: Select all

$ sudo parted /dev/mmcblk0 unit MiB print
Model: MMC BJTD4R (sd/mmc)
Disk /dev/mmcblk0: 29820MiB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start    End       Size      Type      File system  Flags
 1      4.00MiB  516MiB    512MiB    primary   fat16        boot, lba
 2      516MiB   7753MiB   7237MiB   primary   ext4
 3      7754MiB  29820MiB  22066MiB  extended               lba
 5      7755MiB  7883MiB   128MiB    logical   fat16        lba
 6      7884MiB  29820MiB  21936MiB  logical   ext4

2. CoreELEC-Amlogic-ng.arm-19.3-Matrix-Odroid_N2.img
3. I don't remember the version of petitboot. I ran pb-update before partitioning so it shouldn't be that old (I think November 2021). After the problem occurred I ran pb-update so it's updated to 20220129. After the update I couldn't even see CoreELEC. So I updated petitboot to 20220204 (flashing into MicroSD).

For me to reproduce the issue (with petitboot 20220204) I follow these steps:
1. Flash Ubuntu boot partition from ISO image into mine to fix the file system.
2. I ssh into Ubuntu and run the following command:
sudo apt install --reinstall u-boot

Don't you have any booting issue with Petitboot v20220204 before updating the U-boot?
When you are able to reproduce the issue, can you please dump the first 1MB with these commands?

Code: Select all

sudo apt install --reinstall
sudo dd if=/dev/mmcblk0 of=N2.img bs=1M count=1

When the partition table is corrupted, Petitboot cannot see OS installed in the eMMC and Petitboot does not use/access U-Boot in eMMC as well as apt install u-boot don't touch Petitboot. Petitboot v20220129 would not able to boot or recognize eMMC in certain condition and fixed version is after v20220204.

[onderon]

We've tested the new uboot package with microSD and eMMC deivces. Petitboot also detected new bootloader well.
There was no issue so far.

We will try reproducing your issue tomorrow.
Did you install CoreELEC first and install Ubuntu 20.04 + Kernel 4.9 Mate image?
Which version of CE did you flash?
Which version of Petitboot do you run?

Thanks for your response. Please find the answers below:

1. I installed CoreELEC (CoreELEC-Amlogic-ng.arm-19.3-Matrix-Odroid_N2.img) first and then Ubuntu 20.04 (ubuntu-20.04-4.9-mate-odroid-n2-20210830.img). Here is my partition list if it helps (pastebin: https://pastebin.com/bCa1cW3f):

Code: Select all

$ sudo parted /dev/mmcblk0 unit MiB print
Model: MMC BJTD4R (sd/mmc)
Disk /dev/mmcblk0: 29820MiB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start    End       Size      Type      File system  Flags
 1      4.00MiB  516MiB    512MiB    primary   fat16        boot, lba
 2      516MiB   7753MiB   7237MiB   primary   ext4
 3      7754MiB  29820MiB  22066MiB  extended               lba
 5      7755MiB  7883MiB   128MiB    logical   fat16        lba
 6      7884MiB  29820MiB  21936MiB  logical   ext4

2. CoreELEC-Amlogic-ng.arm-19.3-Matrix-Odroid_N2.img
3. I don't remember the version of petitboot. I ran pb-update before partitioning so it shouldn't be that old (I think November 2021). After the problem occurred I ran pb-update so it's updated to 20220129. After the update I couldn't even see CoreELEC. So I updated petitboot to 20220204 (flashing into MicroSD).

For me to reproduce the issue (with petitboot 20220204) I follow these steps:
1. Flash Ubuntu boot partition from ISO image into mine to fix the file system.
2. I ssh into Ubuntu and run the following command:
sudo apt install --reinstall u-boot

Don't you have any booting issue with Petitboot v20220204 before updating the U-boot?
When you are able to reproduce the issue, can you please dump the first 1MB with these commands?

Code: Select all

sudo apt install --reinstall
sudo dd if=/dev/mmcblk0 of=N2.img bs=1M count=1

When the partition table is corrupted, Petitboot cannot see OS installed in the eMMC and Petitboot does not use/access U-Boot in eMMC as well as apt install u-boot don't touch Petitboot. Petitboot v20220129 would not able to boot or recognize eMMC in certain condition and fixed version is after v20220204.

I don't have any issue before updating u-boot. I dumped the first 1MB of eMMC before and after corrupting the filesystem. there is no difference between them:

Code: Select all

odroid@odroid:~$ sudo diff N2-After.img N2-Before.img 
odroid@odroid:~$

I don't think it's related to this issue but whenever I run "parted -l" I see some error messages:

Code: Select all

Error: /dev/mmcblk0rpmb: unrecognised disk label
Warning: Error fsyncing/closing /dev/mmcblk0rpmb: Input/output error
Retry/Ignore? Ignore                                                      
Model: Generic SD/MMC Storage Card (sd/mmc)
Disk /dev/mmcblk0rpmb: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Error: /dev/mmcblk0boot0: unrecognised disk label
Model: Generic SD/MMC Storage Card (sd/mmc)                               
Disk /dev/mmcblk0boot0: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Error: /dev/mmcblk0boot1: unrecognised disk label
Model: Generic SD/MMC Storage Card (sd/mmc)                               
Disk /dev/mmcblk0boot1: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Model: MMC BJTD4R (sd/mmc)
Disk /dev/mmcblk0: 31.3GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type      File system  Flags
 1      4194kB  541MB   537MB   primary   fat16        boot, lba
 2      541MB   8130MB  7589MB  primary   ext4
 3      8131MB  31.3GB  23.1GB  extended               lba
 5      8132MB  8266MB  134MB   logical   fat16        lba
 6      8267MB  31.3GB  23.0GB  logical   ext4

[onderon]

This is the content of /media/boot after it's corrupted:

Code: Select all

ls: cannot access ''$'\001''"?`'$'\f''?.+'$'\267\340': Input/output error
ls: cannot access '-??g'$'\003''h'$'\a''f.'$'\034\t\004': Input/output error
ls: cannot access '??o?'$'\023''('$'\003''?.'$'\017\005\030': Input/output error
ls: cannot access ''$'\001''???>h.k.4'$'\t\006': Input/output error
ls: cannot access ''$'\017\t''E?'$'\004''(?'$'\260': Input/output error
ls: cannot access ' f.c'$'\260''$': Input/output error
ls: cannot access 'f.??'$'\240': Input/output error
ls: cannot access ''$'\355''?.'$'\346''`': Input/output error
ls: cannot access ''$'\027'' '$'\032''I'$'\001''??'$'\260''.O?z': Input/output error
ls: cannot access ''$'\020''@'$'\001''???.'$'\252''`': Input/output error
ls: cannot access 'l'$'\364''c'$'\240\020''?'$'\027''.-i'$'\001': Input/output error
ls: cannot access ''$'\032''h'$'\022\t\002''?'$'\017\002''.'$'\003''*?': Input/output error
ls: cannot access ''$'\r''K'$'\032''h'$'\022''?'$'\307''_.'$'\267''?B': Input/output error
ls: cannot access ''$'\004''?'$'\006''K'$'\002''?'$'\003\003''.C?'$'\351': Input/output error
ls: cannot access ''$'\r''K'$'\032''h'$'\022''?'$'\307''_.'$'\267''?B': Input/output error
ls: cannot access ''$'\004''?'$'\006''K'$'\002''?'$'\003\003''.C?'$'\001': Input/output error
ls: cannot access ''$'\020\002\032''`d ??.'$'\020''@'$'\001': Input/output error
ls: cannot access 'B?'$'\020\002\032''`??.'$'\020''@'$'\001': Input/output error
ls: cannot access ''$'\024''c'$'\034''`p?'$'\001''".'$'\022\267\005': Input/output error
ls: cannot access ''$'\032''hB?pB'$'\032''`.2 '$'\001': Input/output error
ls: cannot access ']?'$'\240''?'$'\342''?'$'\020''?.'$'\004''F'$'\240': Input/output error
ls: cannot access ''$'\f''"'$'\001''?c'$'\267\b''?.'$'\274\366': Input/output error
ls: cannot access ''$'\001''4'$'\262''?q? ,.'$'\367''?o': Input/output error
ls: cannot access '??'$'\020''?ta.'$'\366\366': Input/output error
ls: cannot access 'L'$'\374''?'$'\240''|.'$'\021''1'$'\021': Input/output error
ls: cannot access '??'$'\001''@????.pf'$'\001': Input/output error
ls: cannot access 'Ze7J'$'\022''h'$'\334''e.?'$'\260': Input/output error
ls: cannot access '???'$'\347''?'$'\366''.'$'\340''a': Input/output error
ls: cannot access 'X?c'$'\240\243''a.?a': Input/output error
ls: cannot access '??-.O?': Input/output error
ls: cannot access ''$'\265''?.ko'$'\023': Input/output error
ls: cannot access ''$'\004'' ??7?'$'\006''K.[o'$'\023': Input/output error
ls: cannot access ''$'\f''?B?'$'\003\003\t''?.'$'\003''*'$'\b': Input/output error
ls: cannot access 'L?'$'\005\005\361\261'':'$'\f': Input/output error
ls: cannot access ''$'\253''h#gkh'$'\252''g.cg'$'\004': Input/output error
ls: cannot access ''$'\001''5'$'\034''4'$'\024''k'$'\374''o.'$'\362''b?': Input/output error
ls: cannot access ''$'\023''`'$'\006''!'$'\307''2'$'\021''`.'$'\002'' '$'\004': Input/output error
ls: cannot access 'vi.)i#': Input/output error
ls: cannot access ''$'\004''?.?'$'\366': Input/output error
ls: cannot access ''$'\032''`pG?'$'\371''.'$'\016''?'$'\003': Input/output error
ls: cannot access ''$'\b''f.?'$'\371': Input/output error
ls: cannot access ''$'\240''?|'$'\240''??'$'\002''e.hf': Input/output error
ls: cannot access '?'$'\362''.8R': Input/output error
ls: cannot access ''$'\364\240''??=???.'$'\347\240''?': Input/output error
ls: cannot access '??'$'\020''@??.?.'$'\020''c': Input/output error
ls: cannot access 'i?.'$'\004''H'$'\001': Input/output error
ls: cannot access '7?'$'\344''f'$'\366''f'$'\005''f.'$'\034''F': Input/output error
ls: cannot access '0@??'$'\275''?.(c': Input/output error
ls: cannot access ''$'\020''@'$'\262''?y?.Rc': Input/output error
ls: cannot access 'm'$'\337''-.'$'\n''?'$'\025\260''.'$'\001''kO': Input/output error
ls: cannot access ''$'\023\260\001''l'$'\252\261''0'$'\002''.'$'\035''F'$'\001': Input/output error
ls: cannot access ''$'\002\377\341''G': Input/output error
ls: cannot access ''$'\025''?'$'\006''?X.'$'\f''?.b.'$'\r': Input/output error
ls: cannot access 'YF???'$'\261''.'$'\002''?.': No such file or directory
ls: cannot access ''$'\024''?aF'$'\020\277''?'$'\260': Input/output error
ls: cannot access ''$'\001''6NE'$'\001''?.'$'\a''?'$'\032': Input/output error
ls: cannot access '??'$'\265''?``'$'\020''?.0'$'\373': Input/output error
ls: cannot access '8k'$'\032''h'$'\001''2'$'\032''`.O?'$'\240': Input/output error
ls: cannot access '?'$'\240''HFO?': Input/output error
ls: cannot access '?'$'\305''.?'$'\371': Input/output error
ls: cannot access ''$'\262''??? F'$'\020''?.9o': Input/output error
ls: cannot access ''$'\033''h'$'\334''B'$'\003''???.'$'\020''@'$'\262': Input/output error
ls: cannot access ''$'\001''?'$'\003\f\366''e'$'\367''?.0?0': Input/output error
ls: cannot access '??'$'\001''?'$'\003\260\001\033''.'$'\364''b?': Input/output error
ls: reading directory '.': Input/output error
''$'\364\240''??=???.'$'\347\240''?'                           ''$'\032''` k'$'\032''h.??@'
''$'\001\005\363''Bs?'$'\005\f''.'$'\001''?'                   ''$'\032''`pG?'$'\371''.'$'\016''?'$'\003'
''$'\344\t''?'$'\030\004''?'$'\177''t.'$'\034\031''$'          ''$'\032''h'$'\022\t\002''?'$'\017\002''.'$'\003''*?'
''$'\351\034\023\267\002''?'$'\021''C.'$'\002\035\364'         ''$'\032''h"?@RB?.'$'\307''R'$'\032'
''$'\001'' !f'$'\240''???. f!'                                 ''$'\032''hB?pB'$'\032''`.2 '$'\001'
''$'\001''"'$'\363''@'$'\v''k?c.'$'\031''h'$'\005'             ''$'\033''h'$'\334''B'$'\003''???.'$'\020''@'$'\262'
''$'\001''"?`'$'\f''?.+'$'\267\340'                            ' f.c'$'\260''$'
''$'\001''+'$'\001''?'                                         '#`'$'\037''?'$'\022''k'$'\030''`.'$'\024''k'$'\005'
''$'\001'','$'\004''?'$'\030''k'$'\032''h.B?'$'\017'           '#hO?zp#?'
''$'\001''3'$'\020''h'$'\034''+ ?.'$'\001\001\021'             '#ho?'$'\023''Co?.'$'\003''C#'
''$'\001''4'$'\262''?q? ,.'$'\367''?o'                         '&.???'
''$'\001''5'$'\034''4'$'\024''k'$'\374''o.'$'\362''b?'         '-??aqm?".'$'\004''F'
''$'\001''6NE'$'\001''?.'$'\a''?'$'\032'                       '-??g'$'\003''h'$'\a''f.'$'\034\t\004'
''$'\001''?'$'\350''B.'$'\b''3'$'\024'                         '-M? +hC?.@S+'
''$'\001''?'$'\003\f\366''e'$'\367''?.0?0'                     '0@??'$'\275''?.(c'
''$'\364''?'$'\004''F'$'\002\346\025''F.'$'\037''F'$'\352'     '0F=`'$'\240''?.DI'$'\027'
''$'\355''?.'$'\346''`'                                        '1f8f??p?."k'
''$'\265''?.ko'$'\023'                                         '7?'$'\344''f'$'\366''f'$'\005''f.'$'\034''F'
''$'\262''??? F'$'\020''?.9o'                                  '8k'$'\032''h'$'\001''2'$'\032''`.O?'$'\240'
''$'\001''???>h.k.4'$'\t\006'                                  '<?'$'\035''k f'$'\032''h."?p'
''$'\371''?ch'$'\001''3'$'\003''?.'$'\240\003''c'              '?'$'\261\001\b''??'$'\004''?.'$'\002\377'
''$'\240''?|'$'\240''??'$'\002''e.hf'                          '?'$'\267''.'$'\002''f'$'\027'
''$'\364''B'$'\f''?'$'\v''"'$'\f''"'                           '?'$'\362''.8R'
''$'\253''h#gkh'$'\252''g.cg'$'\004'                           '?'$'\305''.?'$'\371'
''$'\363''j'$'\004''3'$'\032''`?j.'$'\004''3'$'\032'           '?'$'\240''.??<'
''$'\002\377\341''G'                                           '?'$'\262''DO2 '$'\001''?.e'$'\262\036'
''$'\002\267\f''?C?'$'\002\002''.!?'$'\002'                    '?'$'\240''HFO?'
''$'\002\377''%!'$'\341''g'                                    '?'$'\002''@*??!K.'$'\002''"'$'\032'
''$'\002''?(F??V?.ѱJ'                                          '?'$'\030\001'' ?? ?.'$'\001''k'
''$'\003'',%?'$'\001'','$'\v''?'                               '?'$'\034''$?'$'\003\004\363''B.'$'\005''?'$'\024'
''$'\003''?'$'\022''k'$'\032''hb?.p'$'\002\032'                '??'$'\001''?'$'\003\260\001\033''.'$'\364''b?'
''$'\003''?Q'$'\260\004''LC'$'\260''.'$'\004''K'$'\f'          '??'$'\267''?'$'\005''k'$'\032''h.b?'$'\001'
''$'\004'' ??7?'$'\006''K.[o'$'\023'                           '??'$'\265''?``'$'\020''?.0'$'\373'
''$'\004''?'$'\006''K'$'\002''?'$'\003\003''.C?'$'\351'        '??'$'\001''@????.pf'$'\001'
''$'\004''?'$'\006''K'$'\002''?'$'\003\003''.C?'$'\001'        '??'$'\020''?ta.'$'\366\366'
''$'\004''?+hc`??.??'                                          '??'$'\020''@??.?.'$'\020''c'
''$'\004''?.?'$'\366'                                          '??-.O?'
''$'\006''?'$'\001'' '$'\001''F.??'$'\001'                     '??.'$'\023''?'$'\366'
''$'\006''?'$'\001'' '$'\001''F.m?'$'\001'                     '??.8?'
''$'\a''a.'$'\341\345\001'                                     '??<?.??'$'\001'
''$'\b''?'$'\a''k'$'\033''h3?.'$'\f'' '$'\t'                   '???'$'\347''?'$'\366''.'$'\340''a'
''$'\b''f.?'$'\371'                                            '????'$'\006''g'$'\b''k.'$'\004\277\035'
''$'\t''?'$'\a''7'\''?'$'\a''.??'                              '???G??X?.???'
''$'\f''"'$'\001''?c'$'\267\b''?.'$'\274\366'                  '??e !F'$'\240''?.??f'
''$'\f''2'$'\021''`'$'\032''i'$'\003''k.'$'\032''`p'           '??o?'$'\023''('$'\003''?.'$'\017\005\030'
''$'\f''?B?'$'\003\003\t''?.'$'\003''*'$'\b'                   '?f'$'\016''?he'$'\274''?.'$'\307''F?'
''$'\r''?'$'\020\277\n''!'$'\001\306''.?'$'\260'               '@*??'$'\023''KO?.'$'\240''2'$'\032'
''$'\r''K'$'\032''h'$'\022''?'$'\307''_.'$'\267''?B'           '@d.C?'$'\001'
''$'\r''K'$'\032''h'$'\022''?'$'\307''_.'$'\267''?B'           '@r?'$'\260''.?'$'\260\361'
''$'\017\t''E?'$'\004''(?'$'\260'                              'B?'$'\020\002\032''`??.'$'\020''@'$'\001'
''$'\020\002\032''`d ??.'$'\020''@'$'\001'                     'I?'$'\032''K'$'\005'' '$'\032''h.'$'\025''C'$'\035'
''$'\020'')'$'\t''?'$'\001''hbh.'$'\001''?'$'\017'             'L'$'\374''?'$'\240''|.'$'\021''1'$'\021'
''$'\020''?'$'\004''f.)k'                                      'L?'$'\005\005\361\261'':'$'\f'
''$'\020''@'$'\001''???.'$'\252''`'                            'O?'$'\001\b''.G'$'\260''$'
''$'\020''@'$'\262''?y?.Rc'                                    'O?'$'\n\f''LJ'$'\362''B'
''$'\020''k.3?'$'\n'                                           'X?c'$'\240\243''a.?a'
''$'\021\267\004''?&k'$'\032''h.'$'\026''@'$'\036'             'YF???'$'\261''.'$'\002''?.'
''$'\022''?'$'\f''I'$'\240''??'$'\240''.'$'\006''?'$'\004'     'Ze7J'$'\022''h'$'\334''e.?'$'\260'
''$'\023\260\001''l'$'\252\261''0'$'\002''.'$'\035''F'$'\001'  ']?'$'\240''?'$'\342''?'$'\020''?.'$'\004''F'$'\240'
''$'\023''`'$'\006''!'$'\307''2'$'\021''`.'$'\002'' '$'\004'   'f.??'$'\240'
''$'\023''`'$'\f''K'$'\032''hB?.'$'\020\002\032'               'i?.'$'\004''H'$'\001'
''$'\024''?aF'$'\020\277''?'$'\260'                            'j '$'\001''!'$'\240''???.'$'\017'' '$'\b'
''$'\024''c'$'\034''`p?'$'\001''".'$'\022\267\005'             'l'$'\364''c'$'\240\020''?'$'\027''.-i'$'\001'
''$'\025''?'$'\006''?X.'$'\f''?.b.'$'\r'                       'm'$'\337''-.'$'\n''?'$'\025\260''.'$'\001''kO'
''$'\025''K'$'\026''I'$'\032''h'$'\027''."?p'                  'o?'$'\003''C#`'$'\020''?.'$'\021''j'$'\020'
''$'\025''K.'$'\003''??'                                       'o?.R?'$'\003'
''$'\027'' '$'\025''I.*h'$'\027'                               'vi.)i#'
''$'\027'' '$'\032''I'$'\001''??'$'\260''.O?z'                 ''$'\177'' '$'\037''!'$'\240''???.m '$'\004'

[tobetter]

I don't have any issue before updating u-boot. I dumped the first 1MB of eMMC before and after corrupting the filesystem. there is no difference between them:

Code: Select all

odroid@odroid:~$ sudo diff N2-After.img N2-Before.img 
odroid@odroid:~$

If the 1MB of eMMC have no difference between before and after, the partition table is not corrupted at all but file system must be. This makes Petitboot not to load OS to boot menu.

I don't think it's related to this issue but whenever I run "parted -l" I see some error messages:

Code: Select all

Error: /dev/mmcblk0rpmb: unrecognised disk label
Warning: Error fsyncing/closing /dev/mmcblk0rpmb: Input/output error
Retry/Ignore? Ignore                                                      

This is not quite related to the problem what we are talking about, /dev/mmcblk0rpmb is a partition being used for security purpose but it's not being used by N2 at all. So you can ignore it.

[onderon]

parted doesn't complain about partition table. I can see the content of other partitions (including Ubuntu root partition). I can even use CoreELEC. I also suspect the filesystem is corrupted. I should mention I copy FAT16 filesystem using GParted.

[tobetter]

parted doesn't complain about partition table. I can see the content of other partitions (including Ubuntu root partition). I can even use CoreELEC. I also suspect the filesystem is corrupted. I should mention I copy FAT16 filesystem using GParted.

Ok, I am installing the set partition layout like yours with Ubuntu Mate and CoreELEC to eMMC. Let me try it out and get back to you.

[tobetter]

That's strange...I've tried a couple of times with 2 eMMC cards and made the partition table like this, my test does not make any error with Petitboot and the first partition on eMMC also did not corrupted at all. I also don't see any significant change in U-Boot script which may corrupt a file system.

Code: Select all

GNU Parted 3.3
Using /dev/mmcblk0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p                                                                
Model: MMC 8GTF4R (sd/mmc)
Disk /dev/mmcblk0: 7818MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type      File system  Flags
 1      4194kB  537MB   533MB   primary   fat16        lba
 2      541MB   4836MB  4295MB  primary   ext4
 3      4836MB  7818MB  2982MB  extended
 5      4837MB  4971MB  134MB   logical   fat16
 6      4972MB  7818MB  2846MB  logical   ext4

[onderon]

Thanks for your time. I have no idea what caused that issue on my side.

[tobetter]

Thanks for your time. I have no idea what caused that issue on my side.

If you my understanding is correct, your eMMC is built manually by yourself or using your own script. I don't think the version of Petitboot is a matter since the problem is the FAT partition is corrupted after apt install. It is not relative the issue to resolve, I would like to comment a couple of things. 1) not necessary to skip 4MB for the first partition, only 1MB is fine for the boot loader. 2) If you install multiple OS images and number of partitions all does not exceed 4, not necessary to use extended partition since FAT partition table can manage 4 partitions.

[onderon]

Yes I partitioned it myself. Thanks for the comments. I didn't create the first two partitions. I flashed CoreELEC and then resize the second one and the rest. I created that extended partition just in case if I want to add another OS. I need to investigate it more. I let you know if I find the culprit.

[tobetter]

Yes I partitioned it myself. Thanks for the comments. I didn't create the first two partitions. I flashed CoreELEC and then resize the second one and the rest. I created that extended partition just in case if I want to add another OS. I need to investigate it more. I let you know if I find the culprit.

Thank you for the explain, I realize that recently CoreELEC changes the partition layout due to their wide device support with single OS image. My suggestion is not to put multiple OSes into single memory card if possible and CoreELEC can run with budget SD memory card.