Можно обновить через консоль, а можно через графический интерфейс(поставив необходимые галочки в настройках)
Какие "неправильные" способы были найдены в интернете?
sudo do-release-upgrade -d выдаёт ошибку: Error in sys.excepthook:
Traceback (most recent call last):
File "/tmp/update-manager-72H0w5/DistUpgrade/DistUpgradeViewText.py", line 117, in _handleException
"\n".join(lines))
File "/tmp/update-manager-72H0w5/DistUpgrade/DistUpgradeViewText.py", line 151, in error
print(twrap(summary))
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-8: ordinal not in range(128)
sudo aptitude upgrade выдаёт ошибку locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory