---- 在 星期五, 2021-07-09 22:03:11 Miklos Szeredi <miklos@xxxxxxxxxx> 撰写 ---- > On Tue, 22 Jun 2021 at 18:30, Chengguang Xu <cgxu519@xxxxxxxxxxxx> wrote: > > > > Hello, > > > > Today I got a mount failure report from a docker developer about special characters in overlayfs lower/upper path. > > The root cause is quite straightforward because overlayfs uses colon/comma as seperator of lowerdir layers and module options. > > However, Colon/Comma characters are valid for directory name on linux so some people(especially container users) hope overlayfs > > could correctly recognize and handle those directories. > > > > Strengthen option parsing seems a right solution for fixing the issue, what do think for this? > > Use backslash as an escape character. E.g. lower directory named > "ab,cd:ef" needs to be passed to mount as "-olowerdir=ab\,cd\:ef" > Hi Miklos, Thanks for your advice, it worked well. Minor fix is "ab,cd:ef" needs to be passed to mount as "-olowerdir=ab\\,cd\\:ef" Thanks, Chengguang
